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Knapp JL, Nicholson CC, Jonsson O, de Miranda JR, Rundlöf M. Ecological traits interact with landscape context to determine bees' pesticide risk. Nat Ecol Evol 2023; 7:547-556. [PMID: 36849537 PMCID: PMC10089916 DOI: 10.1038/s41559-023-01990-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 12/22/2022] [Indexed: 03/01/2023]
Abstract
Widespread contamination of ecosystems with pesticides threatens non-target organisms. However, the extent to which life-history traits affect pesticide exposure and resulting risk in different landscape contexts remains poorly understood. We address this for bees across an agricultural land-use gradient based on pesticide assays of pollen and nectar collected by Apis mellifera, Bombus terrestris and Osmia bicornis, representing extensive, intermediate and limited foraging traits. We found that extensive foragers (A. mellifera) experienced the highest pesticide risk-additive toxicity-weighted concentrations. However, only intermediate (B. terrestris) and limited foragers (O. bicornis) responded to landscape context-experiencing lower pesticide risk with less agricultural land. Pesticide risk correlated among bee species and between food sources and was greatest in A. mellifera-collected pollen-useful information for future postapproval pesticide monitoring. We provide foraging trait- and landscape-dependent information on the occurrence, concentration and identity of pesticides that bees encounter to estimate pesticide risk, which is necessary for more realistic risk assessment and essential information for tracking policy goals to reduce pesticide risk.
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Affiliation(s)
- Jessica L Knapp
- Department of Biology, Lund University, Lund, Sweden.
- Department of Botany, Trinity College Dublin, Dublin, Ireland.
| | | | - Ove Jonsson
- Department of Aquatic Sciences and Assessment, SLU Centre for Pesticides in the Environment, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Joachim R de Miranda
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Maj Rundlöf
- Department of Biology, Lund University, Lund, Sweden.
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2
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The Role of Uncultivated Habitats in Supporting Wild Bee Communities in Mediterranean Agricultural Landscapes. DIVERSITY 2023. [DOI: 10.3390/d15020294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
In agricultural landscapes, uncultivated habitat patches may have a focal role in supporting communities of ecosystem service providers. However, little is known on the variances among different types of uncultivated habitat patches in providing resources and maintaining populations of these beneficial organisms. We studied wild bee communities in natural and semi-natural uncultivated patches embedded in semi-arid Mediterranean agricultural landscapes. We investigated the effects of local- and landscape-scale land-use characteristics, as well as their interactions, on bee diversity, functional composition, and forage and nesting resources. Most bee community parameters were affected by both local- and landscape-scale characteristics, but no significant interactions were found among the scales. Local land-use effects were related primarily to overall plant cover, and to the abundance and richness of flowering plants. Landscape effects, mostly limited to a 400 m range, were varied. The abundance of focal crop pollinators varied considerably between patch type and pollinator species. The different types of uncultivated habitats maintain complementary bee and flower communities. Our findings show the important role of uncultivated habitat patches in providing floral and nesting resources for bees, and creating resource-landscapes that can support wild bee communities and crop pollination services in Mediterranean agricultural landscapes.
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3
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Albaladejo‐Robles G, Böhm M, Newbold T. Species life-history strategies affect population responses to temperature and land-cover changes. GLOBAL CHANGE BIOLOGY 2023; 29:97-109. [PMID: 36250232 PMCID: PMC10092366 DOI: 10.1111/gcb.16454] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/24/2022] [Accepted: 08/27/2022] [Indexed: 06/01/2023]
Abstract
Human-induced environmental changes have a direct impact on species populations, with some species experiencing declines while others display population growth. Understanding why and how species populations respond differently to environmental changes is fundamental to mitigate and predict future biodiversity changes. Theoretically, species life-history strategies are key determinants shaping the response of populations to environmental impacts. Despite this, the association between species life histories and the response of populations to environmental changes has not been tested. In this study, we analysed the effects of recent land-cover and temperature changes on rates of population change of 1,072 populations recorded in the Living Planet Database. We selected populations with at least 5 yearly consecutive records (after imputation of missing population estimates) between 1992 and 2016, and for which we achieved high population imputation accuracy (in the cases where missing values had to be imputed). These populations were distributed across 553 different locations and included 461 terrestrial amniote vertebrate species (273 birds, 137 mammals, and 51 reptiles) with different life-history strategies. We showed that populations of fast-lived species inhabiting areas that have experienced recent expansion of cropland or bare soil present positive populations trends on average, whereas slow-lived species display negative population trends. Although these findings support previous hypotheses that fast-lived species are better adapted to recover their populations after an environmental perturbation, the sensitivity analysis revealed that model outcomes are strongly influenced by the addition or exclusion of populations with extreme rates of change. Therefore, the results should be interpreted with caution. With climate and land-use changes likely to increase in the future, establishing clear links between species characteristics and responses to these threats is fundamental for designing and conducting conservation actions. The results of this study can aid in evaluating population sensitivity, assessing the likely conservation status of species with poor data coverage, and predicting future scenarios of biodiversity change.
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Affiliation(s)
- Gonzalo Albaladejo‐Robles
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and EnvironmentUniversity College LondonLondonUK
- Institute of ZoologyZoological Society of LondonLondonUK
| | - Monika Böhm
- Institute of ZoologyZoological Society of LondonLondonUK
- Global Center for Species SurvivalIndianapolisIndianaUSA
| | - Tim Newbold
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and EnvironmentUniversity College LondonLondonUK
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4
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Fitzgerald JL, Ogilvie JE, CaraDonna PJ. Ecological Drivers and Consequences of Bumble Bee Body Size Variation. ENVIRONMENTAL ENTOMOLOGY 2022; 51:1055-1068. [PMID: 36373400 DOI: 10.1093/ee/nvac093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Indexed: 06/16/2023]
Abstract
Body size is arguably one of the most important traits influencing the physiology and ecology of animals. Shifts in animal body size have been observed in response to climate change, including in bumble bees (Bombus spp. [Hymenoptera: Apidae]). Bumble bee size shifts have occurred concurrently with the precipitous population declines of several species, which appear to be related, in part, to their size. Body size variation is central to the ecology of bumble bees, from their social organization to the pollination services they provide to plants. If bumble bee size is shifted or constrained, there may be consequences for the pollination services they provide and for our ability to predict their responses to global change. Yet, there are still many aspects of the breadth and role of bumble bee body size variation that require more study. To this end, we review the current evidence of the ecological drivers of size variation in bumble bees and the consequences of that variation on bumble bee fitness, foraging, and species interactions. In total we review: (1) the proximate determinants and physiological consequences of size variation in bumble bees; (2) the environmental drivers and ecological consequences of size variation; and (3) synthesize our understanding of size variation in predicting how bumble bees will respond to future changes in climate and land use. As global change intensifies, a better understanding of the factors influencing the size distributions of bumble bees, and the consequences of those distributions, will allow us to better predict future responses of these pollinators.
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Affiliation(s)
- Jacquelyn L Fitzgerald
- Plant Biology and Conservation, Northwestern University, Evanston, IL 60201, USA
- Chicago Botanic Garden, Negaunee Institute for Plant Conservation Science & Action, Glencoe, IL 60022, USA
- Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA
| | - Jane E Ogilvie
- Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA
| | - Paul J CaraDonna
- Plant Biology and Conservation, Northwestern University, Evanston, IL 60201, USA
- Chicago Botanic Garden, Negaunee Institute for Plant Conservation Science & Action, Glencoe, IL 60022, USA
- Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA
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5
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Fernandes K, Prendergast K, Bateman PW, Saunders BJ, Gibberd M, Bunce M, Nevill P. DNA metabarcoding identifies urban foraging patterns of oligolectic and polylectic cavity-nesting bees. Oecologia 2022; 200:323-337. [PMID: 36098815 PMCID: PMC9675668 DOI: 10.1007/s00442-022-05254-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 09/01/2022] [Indexed: 12/03/2022]
Abstract
Urbanisation modifies natural landscapes resulting in built-up space that is covered by buildings or hard surfaces and managed green spaces that often substitute native plant species with exotics. Some native bee species have been able to adapt to urban environments, foraging and reproducing in these highly modified areas. However, little is known on how the foraging ecology of native bees is affected by urbanised environments, and whether impacts vary among species with different degrees of specialisation for pollen collection. Here, we aim to investigate the responses of native bee foraging behaviour to urbanisation, using DNA metabarcoding to identify the resources within nesting tubes. We targeted oligolectic (specialist) and polylectic (generalist) cavity-nesting bee species in residential gardens and remnant bushland habitats. We were able to identify 40 families, 50 genera, and 23 species of plants, including exotic species, from the contents of nesting tubes. Oligolectic bee species had higher diversity of plant pollen in their nesting tubes in residential gardens compared to bushland habitats, along with significantly different forage composition between the two habitats. This result implies a greater degree of forage flexibility for oligolectic bee species than previously thought. In contrast, the diversity and composition of plant forage in polylectic bee nesting tubes did not vary between the two habitat types. Our results suggest a complex response of cavity-nesting bees to urbanisation and support the need for additional research to understand how the shifts in foraging resources impact overall bee health.
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Affiliation(s)
- Kristen Fernandes
- Trace and Environmental DNA (TrEnD) Laboratory, School of Molecular and Life Sciences, Curtin University, Bentley, WA, 6102, Australia. .,Section for Molecular Ecology and Evolution, Faculty of Health and Medical Sciences, Globe Institute, University of Copenhagen, Copenhagen K, Denmark. .,Food Agility CRC Ltd, 175 Pitt St, Sydney, NSW, 2000, Australia.
| | - Kit Prendergast
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, 6102, Australia
| | - Philip W Bateman
- Behavioural Ecology Lab, School of Molecular and Life Sciences, Curtin University, Bentley, WA, 6102, Australia.,MBioMe - Mine Site Biomonitoring using eDNA Research Group, Trace and Environmental DNA (TrEnD) Laboratory, School of Molecular and Life Sciences, Curtin University, Bentley, WA, 6102, Australia
| | - Benjamin J Saunders
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, 6102, Australia
| | - Mark Gibberd
- Centre for Crop and Disease Management, School of Molecular and Life Sciences, Curtin University, Bentley, WA, 6102, Australia
| | - Michael Bunce
- Trace and Environmental DNA (TrEnD) Laboratory, School of Molecular and Life Sciences, Curtin University, Bentley, WA, 6102, Australia.,The Institute of Environmental Science and Research (ESR), Kenepuru, Porirua, 5022, New Zealand
| | - Paul Nevill
- Trace and Environmental DNA (TrEnD) Laboratory, School of Molecular and Life Sciences, Curtin University, Bentley, WA, 6102, Australia.,MBioMe - Mine Site Biomonitoring using eDNA Research Group, Trace and Environmental DNA (TrEnD) Laboratory, School of Molecular and Life Sciences, Curtin University, Bentley, WA, 6102, Australia
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6
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Persson AS, Westman A, Smith TJ, Mayfield MM, Olsson P, Smith HG, Fuller R. Backyard buzz: human population density modifies the value of vegetation cover for insect pollinators in a subtropical city. Urban Ecosyst 2022. [DOI: 10.1007/s11252-022-01277-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AbstractUrbanisation drives overall declines in insect pollinators. Although urban green spaces can provide suitable habitat for pollinators much remains to be learned about how urban landscapes either promote or negatively impact pollinators. We investigated how backyard design, local (100 m) and landscape (500 m) scale vegetation cover and human population density were associated with non-eusocial native bee species, eusocial bees (Apis mellifera and Tetragonula spp.), and hoverflies, in residential green spaces of the subtropical city Brisbane, Australia. We found that associations between bee abundance and vegetation cover were moderated by human density, but the direction of this effect differed for non-eusocial and eusocial species. Non-eusocial bee abundance was positively associated with tree cover at local and landscape scales when human densities were low, but negatively so at high human population densities. We suggest this may be because the quality of vegetation for non-eusocial bees deteriorates as human density increases. In contrast, abundance of eusocial bees was negatively associated with increasing local cover of grass and shrubs at low levels of human density, but positively associated at high densities. This affinity to humans could partly be explained by domesticated “kept” hives. We found no effect of urban gradients on bee species richness. Hoverfly abundance was negatively related to human density and positively related to vegetation cover at local and landscape scales. At the backyard scale, both bee species richness and bee and hoverfly abundances were positively associated to flower abundance. Backyards with more vegetation cover had higher densities of non-eusocial bees. Our results thus support the idea that urban greening in densely populated areas at multiple spatial scales can benefit a range of insect pollinators.
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7
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Jung M. Predictability and transferability of local biodiversity environment relationships. PeerJ 2022; 10:e13872. [PMID: 36032939 PMCID: PMC9415358 DOI: 10.7717/peerj.13872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 07/19/2022] [Indexed: 01/18/2023] Open
Abstract
Background Biodiversity varies in space and time, and often in response to environmental heterogeneity. Indicators in the form of local biodiversity measures-such as species richness or abundance-are common tools to capture this variation. The rise of readily available remote sensing data has enabled the characterization of environmental heterogeneity in a globally robust and replicable manner. Based on the assumption that differences in biodiversity measures are generally related to differences in environmental heterogeneity, these data have enabled projections and extrapolations of biodiversity in space and time. However so far little work has been done on quantitatively evaluating if and how accurately local biodiversity measures can be predicted. Methods Here I combine estimates of biodiversity measures from terrestrial local biodiversity surveys with remotely-sensed data on environmental heterogeneity globally. I then determine through a cross-validation framework how accurately local biodiversity measures can be predicted within ("predictability") and across similar ("transferability") biodiversity surveys. Results I found that prediction errors can be substantial, with error magnitudes varying between different biodiversity measures, taxonomic groups, sampling techniques and types of environmental heterogeneity characterizations. And although errors associated with model predictability were in many cases relatively low, these results question-particular for transferability-our capability to accurately predict and project local biodiversity measures based on environmental heterogeneity. I make the case that future predictions should be evaluated based on their accuracy and inherent uncertainty, and ecological theories be tested against whether we are able to make accurate predictions from local biodiversity data.
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8
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Straub F, Kuppler J, Fellendorf M, Teuscher M, Vogt J, Ayasse M. Land-use stress alters cuticular chemical surface profile and morphology in the bumble bee Bombus lapidarius. PLoS One 2022; 17:e0268474. [PMID: 35560000 PMCID: PMC9106155 DOI: 10.1371/journal.pone.0268474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 04/29/2022] [Indexed: 11/20/2022] Open
Abstract
Pollinators and other insects are currently undergoing a massive decline. Several stressors are thought to be of importance in this decline, with those having close relationships to agricultural management and practice seemingly playing key roles. In the present study, we sampled Bombus lapidarius L. workers in grasslands differing in their management intensity and management regime across three different regions along a north-south gradient in Germany. We analyzed the bees with regard to (1) their cuticular hydrocarbon profile (because of its important role in communication in social insects) and amount of scent by using gas chromatography and (2) the size of each individual by using wing distances as a proxy for body size. Our analysis revealed changes related to land-use intensity and temperature in the cuticular scent profile of bumble bees. Decreasing body size and increasing total scent amount were explained by an interaction of land-use intensity and study region, but not by land-use intensity alone. Thus, land-use intensity and temperature influence intracolonial communication and size, both of which can have strong effects on foraging. Land management and climate are therefore probably detrimental for colony maintenance and the reproductive success of bumble bees.
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Affiliation(s)
- Florian Straub
- Institute of Evolutionary Ecology and Conservation Genomics, Ulm University, Ulm, Germany
| | - Jonas Kuppler
- Institute of Evolutionary Ecology and Conservation Genomics, Ulm University, Ulm, Germany
| | - Martin Fellendorf
- Institute of Evolutionary Ecology and Conservation Genomics, Ulm University, Ulm, Germany
| | - Miriam Teuscher
- Chair for Terrestrial Ecology, Technical University of Munich, Freising, Germany
| | - Juliane Vogt
- Chair for Terrestrial Ecology, Technical University of Munich, Freising, Germany
- Natura 2000-Station Unstrut-Hainich/Eichsfeld, Hörselberg-Hainich, Germany
| | - Manfred Ayasse
- Institute of Evolutionary Ecology and Conservation Genomics, Ulm University, Ulm, Germany
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9
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Gathof AK, Grossmann AJ, Herrmann J, Buchholz S. Who can pass the urban filter? A multi-taxon approach to disentangle pollinator trait-environmental relationships. Oecologia 2022; 199:165-179. [PMID: 35505250 PMCID: PMC9120122 DOI: 10.1007/s00442-022-05174-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 04/19/2022] [Indexed: 11/30/2022]
Abstract
Cities are considered important refuges for insect pollinators. This has been shown repeatedly for wild bees, but may also be true for other diverse taxa such as hoverflies. However, our understanding of how urban environmental filters shape pollinator species communities and their traits is still limited. Here, we used wild bee and hoverfly species, communities and their functional traits to illustrate how environmental filters on the landscape and local scale shape urban species pools. The multi-taxon approach revealed that environmental filtering predominantly occurred at the landscape scale as urbanisation and 3D connectivity significantly structured the taxonomic and functional composition of wild bee (sociality, nesting, diet, body size) and hoverfly (larval food type, migratory status) communities. We identified urban winners and losers attributed to taxon-specific responses to urban filters. Our results suggest that insect pollinator conservation needs to take place primarily at the landscape level while considering species traits, especially by increasing habitat connectivity.
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Affiliation(s)
| | | | | | - Sascha Buchholz
- Institute of Landscape Ecology, University of Münster, 48149, Münster, Germany.
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), 14195, Berlin, Germany.
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10
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Pardee GL, Griffin SR, Stemkovski M, Harrison T, Portman ZM, Kazenel MR, Lynn JS, Inouye DW, Irwin RE. Life-history traits predict responses of wild bees to climate variation. Proc Biol Sci 2022; 289:20212697. [PMID: 35440209 PMCID: PMC9019520 DOI: 10.1098/rspb.2021.2697] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Life-history traits, which are physical traits or behaviours that affect growth, survivorship and reproduction, could play an important role in how well organisms respond to environmental change. By looking for trait-based responses within groups, we can gain a mechanistic understanding of why environmental change might favour or penalize certain species over others. We monitored the abundance of at least 154 bee species for 8 consecutive years in a subalpine region of the Rocky Mountains to ask whether bees respond differently to changes in abiotic conditions based on their life-history traits. We found that comb-building cavity nesters and larger bodied bees declined in relative abundance with increasing temperatures, while smaller, soil-nesting bees increased. Further, bees with narrower diet breadths increased in relative abundance with decreased rainfall. Finally, reduced snowpack was associated with reduced relative abundance of bees that overwintered as prepupae whereas bees that overwintered as adults increased in relative abundance, suggesting that overwintering conditions might affect body size, lipid content and overwintering survival. Taken together, our results show how climate change may reshape bee pollinator communities, with bees with certain traits increasing in abundance and others declining, potentially leading to novel plant-pollinator interactions and changes in plant reproduction.
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Affiliation(s)
- Gabriella L Pardee
- Department of Applied Ecology, North Carolina State University, Raleigh, NC 27607, USA.,Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA.,Department of Integrative Biology, University of Texas at Austin, Austin, TX 78712, USA
| | - Sean R Griffin
- Department of Integrative Biology, University of Texas at Austin, Austin, TX 78712, USA
| | - Michael Stemkovski
- Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA.,Department of Biology and Ecology Center, Utah State University, Logan, UT 84322, USA
| | - Tina Harrison
- Department of Biology, University of Louisiana, Lafayette, LA 70501, USA
| | - Zachary M Portman
- Department of Entomology, University of Minnesota, Twin Cities, Saint Paul, MN, 55108
| | - Melanie R Kazenel
- Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Joshua S Lynn
- Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA.,Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA.,Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - David W Inouye
- Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA.,Department of Biology, University of Maryland, College Park, MD 20742, USA
| | - Rebecca E Irwin
- Department of Applied Ecology, North Carolina State University, Raleigh, NC 27607, USA.,Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA
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11
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Local plant richness predicts bee abundance and diversity in a study of urban residential yards. Basic Appl Ecol 2022. [DOI: 10.1016/j.baae.2021.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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12
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Fulgence TR, Martin DA, Randriamanantena R, Botra R, Befidimanana E, Osen K, Wurz A, Kreft H, Andrianarimisa A, Ratsoavina FM. Differential responses of amphibians and reptiles to land‐use change in the biodiversity hotspot of north‐eastern Madagascar. Anim Conserv 2021. [DOI: 10.1111/acv.12760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- T. R. Fulgence
- Natural and Environmental Sciences Regional University Centre of the SAVA Region (CURSA) Antalaha Madagascar
- Zoology and Animal Biodiversity Faculty of Sciences University of Antananarivo Antananarivo Madagascar
- Biodiversity, Macroecology and Biogeography University of Goettingen Goettingen Germany
| | - D. A. Martin
- Biodiversity, Macroecology and Biogeography University of Goettingen Goettingen Germany
- Wyss Academy for Nature University of Bern Bern Switzerland
| | - R. Randriamanantena
- Sciences of life and Environmental Department Faculty of Sciences University of Antsiranana Antsiranana Madagascar
| | - R. Botra
- Sciences of life and Environmental Department Faculty of Sciences University of Antsiranana Antsiranana Madagascar
| | - E. Befidimanana
- Natural and Environmental Sciences Regional University Centre of the SAVA Region (CURSA) Antalaha Madagascar
| | - K. Osen
- Tropical Silviculture and Forest Ecology University of Goettingen Goettingen Germany
| | - A. Wurz
- Agroecology University of Goettingen Goettingen Germany
| | - H. Kreft
- Biodiversity, Macroecology and Biogeography University of Goettingen Goettingen Germany
- Centre for Biodiversity and Sustainable Land Use (CBL) University of Goettingen Goettingen Germany
| | - A. Andrianarimisa
- Zoology and Animal Biodiversity Faculty of Sciences University of Antananarivo Antananarivo Madagascar
| | - F. M. Ratsoavina
- Zoology and Animal Biodiversity Faculty of Sciences University of Antananarivo Antananarivo Madagascar
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13
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Ghisbain G. Are Bumblebees Relevant Models for Understanding Wild Bee Decline? FRONTIERS IN CONSERVATION SCIENCE 2021. [DOI: 10.3389/fcosc.2021.752213] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The unsustainable use of ecosystems by human societies has put global biodiversity in peril. Bees are, in this context, a popular example of a highly diversified group of pollinators whose collapse is a major concern given the invaluable ecosystem services they provide. Amongst them, bumblebees (Bombus) have increasingly drawn the attention of scientists due to their dramatic population declines globally. This regression has converted them into popular conservation entities, making them the second most studied group of bees worldwide. However, in addition to have become relevant models in the fields of ecology, evolution and biogeography, bumblebees have also been used as models for studying wild bee decline and conservation worldwide. Integrating evidence from the comparative ecology and resilience of bumblebees and wild bees, I discuss the relevance of using Bombus as radars for wild bee decline worldwide. Responses of bumblebees to environmental changes are generally not comparable with those of wild bees because of their relatively long activity period, their inherent sensitivity to high temperatures, their relatively generalist diet breadth and many aspects arising from their eusocial behavior. Moreover, important differences in the available historical data between bumblebees and other bees make comparisons of conservation status even more arduous. Overall, these results reinforce the need for conservation actions that consider a higher level of understanding of ecological diversity in wild bees, highlight the need for an updated and more extensive sampling of these organisms, and emphasize that more caution is required when extrapolating trends from model species.
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14
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Watrobska CM, Ramos Rodrigues A, Arce AN, Clarke J, Gill RJ. Pollen Source Richness May Be a Poor Predictor of Bumblebee ( Bombus terrestris) Colony Growth. FRONTIERS IN INSECT SCIENCE 2021; 1:741349. [PMID: 38468876 PMCID: PMC10926443 DOI: 10.3389/finsc.2021.741349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 10/27/2021] [Indexed: 03/13/2024]
Abstract
Agricultural intensification has drastically altered foraging landscapes for bees, with large-scale crop monocultures associated with floral diversity loss. Research on bumblebees and honeybees has shown individuals feeding on pollen from a low richness of floral sources can experience negative impacts on health and longevity relative to higher pollen source richness of similar protein concentrations. Florally rich landscapes are thus generally assumed to better support social bees. Yet, little is known about whether the effects of reduced pollen source richness can be mitigated by feeding on pollen with higher crude protein concentration, and importantly how variation in diet affects whole colony growth, rearing decisions and sexual production. Studying queen-right bumblebee (Bombus terrestris) colonies, we monitored colony development under a polyfloral pollen diet or a monofloral pollen diet with 1.5-1.8 times higher crude protein concentration. Over 6 weeks, we found monofloral colonies performed better for all measures, with no apparent long-term effects on colony mass or worker production, and a higher number of pupae in monofloral colonies at the end of the experiment. Unexpectedly, polyfloral colonies showed higher mortality, and little evidence of any strategy to counteract the effects of reduced protein; with fewer and lower mass workers being reared, and males showing a similar trend. Our findings (i) provide well-needed daily growth dynamics of queenright colonies under varied diets, and (ii) support the view that pollen protein content in the foraging landscape rather than floral species richness per se is likely a key driver of colony health and success.
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Affiliation(s)
| | | | | | | | - Richard J. Gill
- Department of Life Sciences, Imperial College London, Silwood Park Campus, London, United Kingdom
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15
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Roquer‐Beni L, Alins G, Arnan X, Boreux V, García D, Hambäck PA, Happe A, Klein A, Miñarro M, Mody K, Porcel M, Rodrigo A, Samnegård U, Tasin M, Bosch J. Management‐dependent effects of pollinator functional diversity on apple pollination services: A response–effect trait approach. J Appl Ecol 2021. [DOI: 10.1111/1365-2664.14022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Laura Roquer‐Beni
- CREAFUniversitat Autònoma de Barcelona Bellaterra Spain
- BETAUniversity of Vic–Central University of Catalonia Vic Spain
| | | | - Xavier Arnan
- CREAFUniversitat Autònoma de Barcelona Bellaterra Spain
- Department of Biological Sciences University of Pernambuco Garanhuns Brazil
| | - Virginie Boreux
- Chair of Nature Conservation and Landscape Ecology University of Freiburg Freiburg Germany
| | - Daniel García
- Instituto Mixto de Investigación en Biodiversidad (CSIC‐Uo‐PA) Oviedo Spain
| | - Peter A. Hambäck
- Department of Ecology Environment and Plant Sciences Stockholm University Stockholm Sweden
| | - Anne‐Kathrin Happe
- Department of Biology Technical University of Darmstadt Darmstadt Germany
| | - Alexandra‐Maria Klein
- Chair of Nature Conservation and Landscape Ecology University of Freiburg Freiburg Germany
| | - Marcos Miñarro
- Servicio Regional de Investigación y Desarrollo Agroalimentario Villaviciosa Spain
| | - Karsten Mody
- Department of Biology Technical University of Darmstadt Darmstadt Germany
- Department of Applied Ecology Hochschule Geisenheim University Geisenheim Germany
| | - Mario Porcel
- Department of Plant Protection Biology Integrated Plant Protection Unit Swedish University of Agricultural Sciences Alnarp Sweden
- Corporación Colombiana de Investigación Agropecuaria Meta Colombia
| | | | - Ulrika Samnegård
- Department of Ecology Environment and Plant Sciences Stockholm University Stockholm Sweden
- Department of Biology Lund University Lund Sweden
- School of Environmental & Rural Sciences University of New England Armidale Australia
| | - Marco Tasin
- Department of Plant Protection Biology Integrated Plant Protection Unit Swedish University of Agricultural Sciences Alnarp Sweden
- Department of Chemistry University of Padova Padova Italy
| | - Jordi Bosch
- CREAFUniversitat Autònoma de Barcelona Bellaterra Spain
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16
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Schmolke A, Galic N, Feken M, Thompson H, Sgolastra F, Pitts-Singer T, Elston C, Pamminger T, Hinarejos S. Assessment of the Vulnerability to Pesticide Exposures Across Bee Species. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:2640-2651. [PMID: 34197661 DOI: 10.1002/etc.5150] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/07/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
In many countries, the western honey bee is used as surrogate in pesticide risk assessments for bees. However, uncertainty remains in the estimation of pesticide risk to non-Apis bees because their potential routes of exposure to pesticides, life histories, and ecologies differ from those of honey bees. We applied the vulnerability concept in pesticide risk assessment to 10 bee species including the honey bee, 2 bumble bee species, and 7 solitary bee species with different nesting strategies. Trait-based vulnerability considers the evaluation of a species at the level of both the organism (exposure and effect) and the population (recovery), which goes beyond the sensitivity of individuals to a toxicant assessed in standard laboratory toxicity studies by including effects on populations in the field. Based on expert judgment, each trait was classified by its relationship to the vulnerability to pesticide exposure, effects (intrinsic sensitivity), and population recovery. The results suggested that the non-Apis bees included in our approach are potentially more vulnerable to pesticides than the honey bee due to traits governing exposure and population recovery potential. Our analysis highlights many uncertainties related to the interaction between bee ecology and the potential exposures and population-level effects of pesticides, emphasizing the need for more research to identify suitable surrogate species for higher tier bee risk assessments. Environ Toxicol Chem 2021;40:2640-2651. © 2021 SETAC.
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Affiliation(s)
| | - Nika Galic
- Syngenta Crop Protection, Greensboro, North Carolina, USA
| | - Max Feken
- Syngenta Crop Protection, Greensboro, North Carolina, USA
| | - Helen Thompson
- Jealott's Hill International Research Station, Syngenta, Bracknell, UK
| | - Fabio Sgolastra
- Dipartimento di Scienze e Tecnologie Agro-Alimentari, Università di Bologna, Bologna, Italy
| | - Theresa Pitts-Singer
- Agricultural Research Service Pollinating Insects Research Unit, US Department of Agriculture, Logan, Utah, USA
| | - Charlotte Elston
- Jealott's Hill International Research Station, Syngenta, Bracknell, UK
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17
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Using Matching Traits to Study the Impacts of Land-Use Intensification on Plant-Pollinator Interactions in European Grasslands: A Review. INSECTS 2021; 12:insects12080680. [PMID: 34442246 PMCID: PMC8396669 DOI: 10.3390/insects12080680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/17/2021] [Accepted: 07/23/2021] [Indexed: 11/29/2022]
Abstract
Simple Summary Permanent grasslands are main habitats for many plant species and pollinators. Their destruction as well as their intensification has a major impact on plant and pollinator biodiversity, which has a cascading effect on pollination. However, we lack an understanding of these effects, thereby limiting our ability to predict them. In this review, we synthesised the literature on the mechanisms behind this cascade to provide new insights into the relationship between land-use intensification and pollination. By matching functional traits that mediate the relationship between the two trophic levels, we identified major knowledge gaps about how land-use intensification affects plant–pollinator interactions and how it favours plants with generalised floral traits, which are likely harmful to pollination. Abstract Permanent grasslands are suitable habitats for many plant and animal species, among which are pollinating insects that provide a wide range of ecosystem services. A global crisis in pollination ecosystem service has been highlighted in recent decades, partly the result of land-use intensification. At the grassland scale, however, the underlying mechanisms of land-use intensification that affect plant–pollinator interactions and pollination remain understudied. In this review, we first synthesise the literature to provide new insights into the relationships between land-use intensification and pollination by using matching community and interaction traits. We then identify knowledge gaps and summarise how land-use intensification of grassland influences floral traits that may in turn be associated with modifications to pollinator matching traits. Last, we summarise how these modifications may affect pollination function on permanent grasslands. Overall, land-use intensification may lead to a shift in flower colour, a decrease in mean nectar tube depth and a decrease in reward production and pollen quality at the community level. This, in turn, may generate a decrease in pollinator mouthparts length and body size, that may favour pollinators that require a low amount of floral reward. We found no study citing the effect of land-use intensification on volatile organic compounds emitted by flowers despite the importance of these molecules in pollinator community composition. Overall, our review highlighted major knowledge gaps about the effects of land-use intensification on plant–pollinator interactions, and suggests that land-use intensification could favour plants with generalised floral traits that adversely affect pollination.
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18
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Agroecological Strategies to Safeguard Insect Pollinators in Biodiversity Hotspots: Chile as a Case Study. SUSTAINABILITY 2021. [DOI: 10.3390/su13126728] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Industrial agriculture (IA) has been recognized among the main drivers of biodiversity loss, climate change, and native pollinator decline. Here we summarize the known negative effects of IA on pollinator biodiversity and illustrate these problems by considering the case of Chile, a “world biodiversity hotspot” (WBH) where food exports account for a considerable share of the economy in this country. Most of Chile’s WBH area is currently being replaced by IA at a fast pace, threatening local biodiversity. We present an agroecological strategy for sustainable food production and pollinator conservation in food-producing WBHs. In this we recognize native pollinators as internal inputs that cannot be replaced by IA technological packages and support the development of agroecological and biodiversity restorative practices to protect biodiversity. We suggest four fundamental pillars for food production change based on: (1) sharing the land, restoring and protecting; (2) ecological intensification; (3) localized knowledge, research, and technological development; and (4) territorial planning and implementation of socio-agroecological policies. This approach does not need modification of native pollination services that sustain the world with food and basic subsistence goods, but a paradigm change where the interdependency of nature and human wellbeing must be recognized for ensuring the world’s food security and sovereignty.
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19
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Brito TDF, Pinto NS, Phifer CC, Knowlton JL, Contrera FAL, Maués MM, Silva DP. Orchid bees (Apidae, Euglossini) from Oil Palm Plantations in Eastern Amazon Have Larger but Not Asymmetrical Wings. NEOTROPICAL ENTOMOLOGY 2021; 50:388-397. [PMID: 33792857 DOI: 10.1007/s13744-021-00864-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
Phenotypic variation in both morphology and symmetry of individuals may appear due to environmental stress caused by land-use changes. Here, we evaluated fluctuating asymmetry (FA) and wing size variations of two orchid bee species, Euglossa ignita Smith, 1874 and Eulaema meriana (Olivier, 1789), comparing 11 wing traits. We sampled the individuals from legal reserves (LR), areas of permanent protection (APP), and oil palm plantations (PALM) in Eastern Amazonia. We calculated FA as the absolute difference between the wing measurements made in the right and left wings of specimens and both species' wing size. We corrected each FA measure for possible directional asymmetry bias by subtracting the mean value of the mean FA signed difference to each FA measure. We compared FA and the size of each wing trait of each species between land-use types using one-way ANOVAs. We found no effect of FA between land-use types, but we observed individuals of both species from PALM areas having larger wings than those from LR areas. Our results demonstrate that there seems to be a pressure exerted by land-use change associated with palm oil cultivation favoring individuals with larger wings, although both species had shown substantial permeability of oil palm.
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Affiliation(s)
- Thaline de Freitas Brito
- Programa de Pós-Graduação em Zoologia, Universidade Federal do Pará/Museu Paraense Emílio Goeldi, Belém, Pará, Brazil.
- Laboratório de Biologia e Ecologia de Abelhas, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brazil.
| | - Nelson S Pinto
- Centro Universitário UniAraguaia, Goiânia, Goiás, Brazil
| | - Colin C Phifer
- School of Forest Resources and Environmental Science, Michigan Technological University, Houghton, MI, USA
| | | | - Felipe A L Contrera
- Laboratório de Biologia e Ecologia de Abelhas, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Márcia M Maués
- Laboratório de Entomologia, Embrapa Amazônia Oriental, Belém, Pará, Brazil
| | - Daniel P Silva
- Departamento de Ciências Biológicas, Instituto Federal Goiano, Urutaí, Goiás, Brazil
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20
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Kelemen EP, Rehan SM. Conservation insights from wild bee genetic studies: Geographic differences, susceptibility to inbreeding, and signs of local adaptation. Evol Appl 2021; 14:1485-1496. [PMID: 34178099 PMCID: PMC8210791 DOI: 10.1111/eva.13221] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 02/19/2021] [Accepted: 03/07/2021] [Indexed: 12/12/2022] Open
Abstract
Conserving bees are critical both ecologically and economically. Genetic tools are valuable for monitoring these vital pollinators since tracking these small, fast-flying insects by traditional means is difficult. By surveying the current state of the literature, this review discusses how recent advances in landscape genetic and genomic research are elucidating how wild bees respond to anthropogenic threats. Current literature suggests that there may be geographic differences in the vulnerability of bee species to landscape changes. Populations of temperate bee species are becoming more isolated and more genetically depauperate as their landscape becomes more fragmented, but tropical bee species appear unaffected. These differences may be an artifact of historical differences in land-use, or it suggests that different management plans are needed for temperate and tropical bee species. Encouragingly, genetic studies on invasive bee species indicate that low levels of genetic diversity may not lead to rapid extinction in bees as once predicted. Additionally, next-generation sequencing has given researchers the power to identify potential genes under selection, which are likely critical to species' survival in their rapidly changing environment. While genetic studies provide insights into wild bee biology, more studies focusing on a greater phylogenetic and life-history breadth of species are needed. Therefore, caution should be taken when making broad conservation decisions based on the currently few species examined.
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21
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O'Connor LMJ, Pollock LJ, Renaud J, Verhagen W, Verburg PH, Lavorel S, Maiorano L, Thuiller W. Balancing conservation priorities for nature and for people in Europe. Science 2021; 372:856-860. [PMID: 34016780 DOI: 10.1126/science.abc4896] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 04/14/2021] [Indexed: 11/02/2022]
Abstract
There is an urgent need to protect key areas for biodiversity and nature's contributions to people (NCP). However, different values of nature are rarely considered together in conservation planning. Here, we explore potential priority areas in Europe for biodiversity (all terrestrial vertebrates) and a set of cultural and regulating NCP while considering demand for these NCP. We quantify the spatial overlap between these priorities and their performance in representing different values of nature. We show that different priorities rarely coincide, except in certain irreplaceable ecosystems. Notably, priorities for biodiversity better represent NCP than the reverse. Theoretically, protecting an extra 5% of land has the potential to double conservation gains for biodiversity while also maintaining some essential NCP, leading to co-benefits for both nature and people.
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Affiliation(s)
- Louise M J O'Connor
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, Laboratoire d'Écologie Alpine, F-38000 Grenoble, France.
| | - Laura J Pollock
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, Laboratoire d'Écologie Alpine, F-38000 Grenoble, France.,Department of Biology, McGill University, Montreal, QC H3A 1B1, Canada
| | - Julien Renaud
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, Laboratoire d'Écologie Alpine, F-38000 Grenoble, France
| | - Willem Verhagen
- Environmental Geography Group, Institute for Environmental Studies, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081HV Amsterdam, Netherlands.,Frederick S. Pardee Center for International Futures, Josef Korbel School of International Studies, University of Denver, Denver, CO 80208, USA
| | - Peter H Verburg
- Environmental Geography Group, Institute for Environmental Studies, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081HV Amsterdam, Netherlands.,Swiss Federal Research Institute WSL, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland
| | - Sandra Lavorel
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, Laboratoire d'Écologie Alpine, F-38000 Grenoble, France
| | - Luigi Maiorano
- Department of Biology and Biotechnologies "Charles Darwin," University of Rome "La Sapienza," Rome, Italy
| | - Wilfried Thuiller
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, LECA, Laboratoire d'Écologie Alpine, F-38000 Grenoble, France
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22
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Pollination in Agroecosystems: A Review of the Conceptual Framework with a View to Sound Monitoring. LAND 2021. [DOI: 10.3390/land10050540] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The pollination ecology in agroecosystems tackles a landscape in which plants and pollinators need to adjust, or be adjusted, to human intervention. A valid, widely applied approach is to regard pollination as a link between specific plants and their pollinators. However, recent evidence has added landscape features for a wider ecological perspective. Are we going in the right direction? Are existing methods providing pollinator monitoring tools suitable for understanding agroecosystems? In Italy, we needed to address these questions to respond to government pressure to implement pollinator monitoring in agroecosystems. We therefore surveyed the literature, grouped methods and findings, and evaluated approaches. We selected studies that may contain directions and tools directly linked to pollinators and agroecosystems. Our analysis revealed four main paths that must come together at some point: (i) the research question perspective, (ii) the advances of landscape analysis, (iii) the role of vegetation, and (iv) the gaps in our knowledge of pollinators taxonomy and behavior. An important conclusion is that the pollinator scale is alarmingly disregarded. Debate continues about what features to include in pollinator monitoring and the appropriate level of detail: we suggest that the pollinator scale should be the main driver.
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23
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Millard J, Outhwaite CL, Kinnersley R, Freeman R, Gregory RD, Adedoja O, Gavini S, Kioko E, Kuhlmann M, Ollerton J, Ren ZX, Newbold T. Global effects of land-use intensity on local pollinator biodiversity. Nat Commun 2021; 12:2902. [PMID: 34006837 PMCID: PMC8131357 DOI: 10.1038/s41467-021-23228-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 04/13/2021] [Indexed: 02/03/2023] Open
Abstract
Pollinating species are in decline globally, with land use an important driver. However, most of the evidence on which these claims are made is patchy, based on studies with low taxonomic and geographic representativeness. Here, we model the effect of land-use type and intensity on global pollinator biodiversity, using a local-scale database covering 303 studies, 12,170 sites, and 4502 pollinating species. Relative to a primary vegetation baseline, we show that low levels of intensity can have beneficial effects on pollinator biodiversity. Within most anthropogenic land-use types however, increasing intensity is associated with significant reductions, particularly in urban (43% richness and 62% abundance reduction compared to the least intensive urban sites), and pasture (75% abundance reduction) areas. We further show that on cropland, the strongly negative response to intensity is restricted to tropical areas, and that the direction and magnitude of response differs among taxonomic groups. Our findings confirm widespread effects of land-use intensity on pollinators, most significantly in the tropics, where land use is predicted to change rapidly.
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Affiliation(s)
- Joseph Millard
- grid.83440.3b0000000121901201Department of Genetics, Evolution & Environment, University College London, London, United Kingdom ,grid.20419.3e0000 0001 2242 7273Institute of Zoology, Zoological Society of London, London, United Kingdom
| | - Charlotte L. Outhwaite
- grid.83440.3b0000000121901201Department of Genetics, Evolution & Environment, University College London, London, United Kingdom
| | - Robyn Kinnersley
- grid.83440.3b0000000121901201Department of Genetics, Evolution & Environment, University College London, London, United Kingdom
| | - Robin Freeman
- grid.20419.3e0000 0001 2242 7273Institute of Zoology, Zoological Society of London, London, United Kingdom
| | - Richard D. Gregory
- grid.83440.3b0000000121901201Department of Genetics, Evolution & Environment, University College London, London, United Kingdom ,grid.421630.20000 0001 2110 3189RSPB Centre for Conservation Science, RSPB, The Lodge, Sandy, United Kingdom
| | - Opeyemi Adedoja
- grid.411921.e0000 0001 0177 134XDepartment of Conservation and Marine Sciences, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Sabrina Gavini
- grid.412234.20000 0001 2112 473XINIBIOMA, CONICET-Universidad Nacional del Comahue, Rio Negro, Argentina
| | - Esther Kioko
- grid.425505.30000 0001 1457 1451Zoology Department, National Museums of Kenya (NMK), Nairobi, Kenya
| | - Michael Kuhlmann
- grid.9764.c0000 0001 2153 9986Zoological Museum, Kiel University, Kiel, Germany ,grid.35937.3b0000 0001 2270 9879Department of Life Sciences, Natural History Museum, London, United Kingdom
| | - Jeff Ollerton
- grid.44870.3fFaculty of Arts, Science and Technology, University of Northampton, Northampton, United Kingdom
| | - Zong-Xin Ren
- grid.9227.e0000000119573309Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, PR China
| | - Tim Newbold
- grid.83440.3b0000000121901201Department of Genetics, Evolution & Environment, University College London, London, United Kingdom
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24
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Prendergast KS, Hogendoorn K. FORUM: Methodological shortcomings and lack of taxonomic effort beleaguer Australian bee studies. AUSTRAL ECOL 2021. [DOI: 10.1111/aec.13041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kit S. Prendergast
- School of Molecular and Life Sciences Curtin University Perth, Bentley Western Australia6845Australia
| | - Katja Hogendoorn
- School of Agriculture, Food and Wine The University of Adelaide Adelaide South Australia5005Australia
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25
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Senapathi D, Fründ J, Albrecht M, Garratt MPD, Kleijn D, Pickles BJ, Potts SG, An J, Andersson GKS, Bänsch S, Basu P, Benjamin F, Bezerra ADM, Bhattacharya R, Biesmeijer JC, Blaauw B, Blitzer EJ, Brittain CA, Carvalheiro LG, Cariveau DP, Chakraborty P, Chatterjee A, Chatterjee S, Cusser S, Danforth BN, Degani E, Freitas BM, Garibaldi LA, Geslin B, de Groot GA, Harrison T, Howlett B, Isaacs R, Jha S, Klatt BK, Krewenka K, Leigh S, Lindström SAM, Mandelik Y, McKerchar M, Park M, Pisanty G, Rader R, Reemer M, Rundlöf M, Smith B, Smith HG, Silva PN, Steffan-Dewenter I, Tscharntke T, Webber S, Westbury DB, Westphal C, Wickens JB, Wickens VJ, Winfree R, Zhang H, Klein AM. Wild insect diversity increases inter-annual stability in global crop pollinator communities. Proc Biol Sci 2021; 288:20210212. [PMID: 33726596 PMCID: PMC8059553 DOI: 10.1098/rspb.2021.0212] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
While an increasing number of studies indicate that the range, diversity and abundance of many wild pollinators has declined, the global area of pollinator-dependent crops has significantly increased over the last few decades. Crop pollination studies to date have mainly focused on either identifying different guilds pollinating various crops, or on factors driving spatial changes and turnover observed in these communities. The mechanisms driving temporal stability for ecosystem functioning and services, however, remain poorly understood. Our study quantifies temporal variability observed in crop pollinators in 21 different crops across multiple years at a global scale. Using data from 43 studies from six continents, we show that (i) higher pollinator diversity confers greater inter-annual stability in pollinator communities, (ii) temporal variation observed in pollinator abundance is primarily driven by the three-most dominant species, and (iii) crops in tropical regions demonstrate higher inter-annual variability in pollinator species richness than crops in temperate regions. We highlight the importance of recognizing wild pollinator diversity in agricultural landscapes to stabilize pollinator persistence across years to protect both biodiversity and crop pollination services. Short-term agricultural management practices aimed at dominant species for stabilizing pollination services need to be considered alongside longer term conservation goals focussed on maintaining and facilitating biodiversity to confer ecological stability.
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Affiliation(s)
- Deepa Senapathi
- Centre for Agri-Environmental Research, School of Agriculture, Policy & Development, University of Reading, Reading, UK
| | - Jochen Fründ
- Biometry and Environmental System Analysis, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
| | - Matthias Albrecht
- Institute for Sustainability Sciences, Agroscope, Zurich, Switzerland
| | - Michael P D Garratt
- Centre for Agri-Environmental Research, School of Agriculture, Policy & Development, University of Reading, Reading, UK
| | - David Kleijn
- Plant Ecology and Nature Conservation Group, Wageningen University, Wageningen, The Netherlands
| | - Brian J Pickles
- School of Biological Sciences, University of Reading, Reading, UK
| | - Simon G Potts
- Centre for Agri-Environmental Research, School of Agriculture, Policy & Development, University of Reading, Reading, UK
| | - Jiandong An
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Georg K S Andersson
- Universidad Nacional de Río Negro, Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural, Río Negro, Argentina
| | - Svenja Bänsch
- Functional Agrobiodiversity, Department of Crop Sciences, University of Göttingen, Göttingen, Germany.,Agroecology, Department of Crop Sciences, University of Göttingen, Göttingen, Germany
| | - Parthiba Basu
- Centre for Pollination Studies, University of Calcutta, Kolkata, India
| | - Faye Benjamin
- Department of Ecology, Evolution and Natural Resources, Rutgers, The State University of New Jersey, New Brunswick, USA
| | - Antonio Diego M Bezerra
- Setor de Abelhas, Departamento de Zootecnia, Universidade Federal do Ceará, Fortaleza - CE, Brazil
| | | | | | - Brett Blaauw
- Department of Entomology, University of Georgia, Athens, Georgia, USA
| | | | - Claire A Brittain
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire RG42 6EY, UK
| | - Luísa G Carvalheiro
- Departamento de Ecologia, Universidade Federal de Goiás, Campus Samambaia, Goiânia, Brazil.,Centre for Ecology, Evolution and Environmental Changes (cE3c), University of Lisboa, Lisbon, Portugal
| | | | | | - Arnob Chatterjee
- Centre for Pollination Studies, University of Calcutta, Kolkata, India
| | - Soumik Chatterjee
- Centre for Pollination Studies, University of Calcutta, Kolkata, India
| | - Sarah Cusser
- W. K. Kellogg Biological Station, Michigan State University, MI, USA
| | | | - Erika Degani
- Centre for Agri-Environmental Research, School of Agriculture, Policy & Development, University of Reading, Reading, UK
| | - Breno M Freitas
- Setor de Abelhas, Departamento de Zootecnia, Universidade Federal do Ceará, Fortaleza - CE, Brazil
| | - Lucas A Garibaldi
- Universidad Nacional de Río Negro, Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural, Río Negro, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural, San Carlos de Bariloche, Río Negro, Argentina
| | - Benoit Geslin
- IMBE, Aix Marseille Univ, Avignon Université, CNRS, IRD, Marseille, France
| | - G Arjen de Groot
- Wageningen Environmental Research, Wageningen University and Research, Wageningen, The Netherlands
| | - Tina Harrison
- Department of Entomology and Nematology, University of California Davis, Davis, USA
| | - Brad Howlett
- The New Zealand Institute for Plant & Food Research Limited, New Zealand
| | - Rufus Isaacs
- Department of Entomology, Michigan State University, East Lansing, USA.,Ecology, Evolutionary Biology, and Behavior Program, East Lansing, USA
| | - Shalene Jha
- Department of Integrative Biology, The University of Texas at Austin, USA
| | - Björn Kristian Klatt
- Agroecology, Department of Crop Sciences, University of Göttingen, Göttingen, Germany.,Department of Biology, Biodiversity, Lund University, Lund, Sweden
| | - Kristin Krewenka
- Heidelberg Research Service, University of Heidelberg, Heidelberg, Germany
| | - Samuel Leigh
- Centre for Agri-Environmental Research, School of Agriculture, Policy & Development, University of Reading, Reading, UK
| | - Sandra A M Lindström
- Department of Biology, Biodiversity, Lund University, Lund, Sweden.,Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden.,Swedish Rural Economy and Agricultural Society, Kristianstad, Sweden
| | - Yael Mandelik
- Department of Entomology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Megan McKerchar
- School of Science and Environment, University of Worcester, Worcester, UK
| | - Mia Park
- Department of Entomology, Cornell University, Ithaca, NY, USA.,Field Engine Wildlife Research and Management, Moodus, CT 06469, USA
| | - Gideon Pisanty
- Agriculture and Agri-Food Canada, Canadian National Collection of Insects, Arachnids and Nematodes, Ontario, Canada
| | - Romina Rader
- School of Environment and Rural Science, University of New England, Armidale, Australia
| | - Menno Reemer
- Naturalis Biodiversity Centre, Leiden, The Netherlands
| | - Maj Rundlöf
- Department of Biology, Biodiversity, Lund University, Lund, Sweden
| | - Barbara Smith
- Centre for Pollination Studies, University of Calcutta, Kolkata, India.,Centre for Agroecology, Water and Resilience, Coventry University, UK
| | - Henrik G Smith
- Centre of Environmental and Climate Research & Department of Biology, Lund University, Sweden
| | - Patrícia Nunes Silva
- Programa de Pós-Graduação em Biologia, Universidade do Vale do Rio dos Sinos (UNISINOS), Av. Unisinos, 950, São Leopoldo, RS, Caixa Postal 93022-750, Brazil
| | - Ingolf Steffan-Dewenter
- Department of Animal Ecology and Tropical Biology, University of Würzburg, Würzburg, Germany
| | - Teja Tscharntke
- Agroecology, Department of Crop Sciences, University of Göttingen, Göttingen, Germany
| | - Sean Webber
- Centre for Agri-Environmental Research, School of Agriculture, Policy & Development, University of Reading, Reading, UK
| | - Duncan B Westbury
- School of Science and Environment, University of Worcester, Worcester, UK
| | - Catrin Westphal
- Functional Agrobiodiversity, Department of Crop Sciences, University of Göttingen, Göttingen, Germany.,Agroecology, Department of Crop Sciences, University of Göttingen, Göttingen, Germany
| | - Jennifer B Wickens
- Centre for Agri-Environmental Research, School of Agriculture, Policy & Development, University of Reading, Reading, UK
| | - Victoria J Wickens
- Centre for Agri-Environmental Research, School of Agriculture, Policy & Development, University of Reading, Reading, UK
| | - Rachael Winfree
- Department of Ecology, Evolution and Natural Resources, Rutgers, The State University of New Jersey, New Brunswick, USA
| | - Hong Zhang
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Alexandra-Maria Klein
- Nature Conservation and Landscape Ecology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
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Kammerer M, Goslee SC, Douglas MR, Tooker JF, Grozinger CM. Wild bees as winners and losers: Relative impacts of landscape composition, quality, and climate. GLOBAL CHANGE BIOLOGY 2021. [PMID: 33433964 DOI: 10.5061/dryad.kwh70rz2s] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Wild bees, like many other taxa, are threatened by land-use and climate change, which, in turn, jeopardizes pollination of crops and wild plants. Understanding how land-use and climate factors interact is critical to predicting and managing pollinator populations and ensuring adequate pollination services, but most studies have evaluated either land-use or climate effects, not both. Furthermore, bee species are incredibly variable, spanning an array of behavioral, physiological, and life-history traits that can increase or decrease resilience to land-use or climate change. Thus, there are likely bee species that benefit, while others suffer, from changing climate and land use, but few studies have documented taxon-specific trends. To address these critical knowledge gaps, we analyzed a long-term dataset of wild bee occurrences from Maryland, Delaware, and Washington DC, USA, examining how different bee genera and functional groups respond to landscape composition, quality, and climate factors. Despite a large body of literature documenting land-use effects on wild bees, in this study, climate factors emerged as the main drivers of wild-bee abundance and richness. For wild-bee communities in spring and summer/fall, temperature and precipitation were more important predictors than landscape composition, landscape quality, or topography. However, relationships varied substantially between wild-bee genera and functional groups. In the Northeast USA, past trends and future predictions show a changing climate with warmer winters, more intense precipitation in winter and spring, and longer growing seasons with higher maximum temperatures. In almost all of our analyses, these conditions were associated with lower abundance of wild bees. Wild-bee richness results were more mixed, including neutral and positive relationships with predicted temperature and precipitation patterns. Thus, in this region and undoubtedly more broadly, changing climate poses a significant threat to wild-bee communities.
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Affiliation(s)
- Melanie Kammerer
- Intercollege Graduate Degree Program in Ecology, Pennsylvania State University, University Park, PA, USA
- Department of Entomology, Center for Pollinator Research, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
| | - Sarah C Goslee
- USDA-ARS Pasture Systems and Watershed Management Research Unit, University Park, PA, USA
| | - Margaret R Douglas
- Department of Environmental Studies & Environmental Science, Dickinson College, Carlisle, PA, USA
| | - John F Tooker
- Intercollege Graduate Degree Program in Ecology, Pennsylvania State University, University Park, PA, USA
- Department of Entomology, Center for Pollinator Research, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
| | - Christina M Grozinger
- Intercollege Graduate Degree Program in Ecology, Pennsylvania State University, University Park, PA, USA
- Department of Entomology, Center for Pollinator Research, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
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27
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Kammerer M, Goslee SC, Douglas MR, Tooker JF, Grozinger CM. Wild bees as winners and losers: Relative impacts of landscape composition, quality, and climate. GLOBAL CHANGE BIOLOGY 2021; 27:1250-1265. [PMID: 33433964 PMCID: PMC7986353 DOI: 10.1111/gcb.15485] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 11/23/2020] [Indexed: 05/10/2023]
Abstract
Wild bees, like many other taxa, are threatened by land-use and climate change, which, in turn, jeopardizes pollination of crops and wild plants. Understanding how land-use and climate factors interact is critical to predicting and managing pollinator populations and ensuring adequate pollination services, but most studies have evaluated either land-use or climate effects, not both. Furthermore, bee species are incredibly variable, spanning an array of behavioral, physiological, and life-history traits that can increase or decrease resilience to land-use or climate change. Thus, there are likely bee species that benefit, while others suffer, from changing climate and land use, but few studies have documented taxon-specific trends. To address these critical knowledge gaps, we analyzed a long-term dataset of wild bee occurrences from Maryland, Delaware, and Washington DC, USA, examining how different bee genera and functional groups respond to landscape composition, quality, and climate factors. Despite a large body of literature documenting land-use effects on wild bees, in this study, climate factors emerged as the main drivers of wild-bee abundance and richness. For wild-bee communities in spring and summer/fall, temperature and precipitation were more important predictors than landscape composition, landscape quality, or topography. However, relationships varied substantially between wild-bee genera and functional groups. In the Northeast USA, past trends and future predictions show a changing climate with warmer winters, more intense precipitation in winter and spring, and longer growing seasons with higher maximum temperatures. In almost all of our analyses, these conditions were associated with lower abundance of wild bees. Wild-bee richness results were more mixed, including neutral and positive relationships with predicted temperature and precipitation patterns. Thus, in this region and undoubtedly more broadly, changing climate poses a significant threat to wild-bee communities.
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Affiliation(s)
- Melanie Kammerer
- Intercollege Graduate Degree Program in EcologyPennsylvania State UniversityUniversity ParkPAUSA
- Department of EntomologyCenter for Pollinator ResearchHuck Institutes of the Life SciencesPennsylvania State UniversityUniversity ParkPAUSA
- Present address:
USDA‐ARS Pasture Systems and Watershed Management Research UnitUniversity ParkPA16802USA
- Present address:
USDA‐ARS Jornada Experimental RangeLas CrucesNM88003USA
| | - Sarah C. Goslee
- USDA‐ARS Pasture Systems and Watershed Management Research UnitUniversity ParkPAUSA
| | - Margaret R. Douglas
- Department of Environmental Studies & Environmental ScienceDickinson CollegeCarlislePAUSA
| | - John F. Tooker
- Intercollege Graduate Degree Program in EcologyPennsylvania State UniversityUniversity ParkPAUSA
- Department of EntomologyCenter for Pollinator ResearchHuck Institutes of the Life SciencesPennsylvania State UniversityUniversity ParkPAUSA
| | - Christina M. Grozinger
- Intercollege Graduate Degree Program in EcologyPennsylvania State UniversityUniversity ParkPAUSA
- Department of EntomologyCenter for Pollinator ResearchHuck Institutes of the Life SciencesPennsylvania State UniversityUniversity ParkPAUSA
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28
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Prendergast KS, Hogendoorn K. FORUM: Methodological shortcomings and lack of taxonomic effort beleaguer Australian bee studies. AUSTRAL ECOL 2021. [DOI: 10.1111/aec.12998] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kit S. Prendergast
- School of Molecular and Life Sciences Curtin University Perth, Bentley Western Australia6845Australia
| | - Katja Hogendoorn
- School of Agriculture, Food and Wine The University of Adelaide Adelaide South Australia5005Australia
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29
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Montoya-Pfeiffer PM, Rodrigues RR, Alves Dos Santos I. Bee pollinator functional responses and functional effects in restored tropical forests. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2020; 30:e02054. [PMID: 31828842 DOI: 10.1002/eap.2054] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/13/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
Wild pollinators are necessary for ensuring plant reproduction, not only among crop fields but also remnant and restored ecosystems. Restoration activities should, therefore, lead to wild pollinator recovery, and thus be monitored to evaluate effects on pollinator diversity and functionality. We assessed bee pollinator functional responses in restoration plantings by creating functional groups (traits: body size, nesting location, sociality, and foraging strategy), comparing their abundance and diversity to that of other habitats (i.e., conserved and degraded primary forest fragments, anthropogenic wetlands, and sugarcane fields), and testing for an effect of source habitat (i.e., primary forest fragments) isolation. We analyzed functional effects on pollen transportation by identifying the pollen grains attached on the bodies of bees; creating plant functional groups with the identified species (traits: habit, successional class, geographic origin, and pollination mode); comparing their frequency, diversity, and interaction network structure among habitats; and searching for key interactions in network modules. In general, the abundance and diversity of bee communities and the frequency and diversity of the interacting plant species in restoration plantings were lower than those in primary forest fragments but higher than those in anthropogenic wetlands and sugarcane fields, suggesting that restoration plantings better enhance bee community recovery and functionality than other disturbed habitats. The interacting bees and plants were also negatively affected by habitat isolation, demonstrating the importance of primary forest fragments to supply bee populations to restored sites. The structure of interaction networks was little affected by habitat change and isolation, but the composition and diversity of functional groups varied significantly. There were more effects on larger bee species with more restricted nesting and floral requirements, and the woody species with which they interact most frequently. We identified key functional groups of bee pollinators that deserve priority for conservation because they play an important role in the pollen transportation of some the most relevant species in remnant forests and restoration plantings and also respond more negatively to habitat disturbances. Restoration efforts should include provisioning of nesting resources and management and conservation of primary forest remnant fragments that represent source habitats for them.
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Affiliation(s)
- Paula María Montoya-Pfeiffer
- Laboratório de Abelhas, Departamento de Ecologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Ricardo R Rodrigues
- Laboratório de Ecologia e Restauração Florestal (LERF), Universidade de São Paulo, São Paulo, Brazil
| | - Isabel Alves Dos Santos
- Laboratório de Abelhas, Departamento de Ecologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
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30
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Roquer‐Beni L, Rodrigo A, Arnan X, Klein A, Fornoff F, Boreux V, Bosch J. A novel method to measure hairiness in bees and other insect pollinators. Ecol Evol 2020; 10:2979-2990. [PMID: 32211170 PMCID: PMC7083657 DOI: 10.1002/ece3.6112] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 01/07/2020] [Accepted: 01/29/2020] [Indexed: 11/29/2022] Open
Abstract
Hairiness is a salient trait of insect pollinators that has been linked to thermoregulation, pollen uptake and transportation, and pollination success. Despite its potential importance in pollination ecology, hairiness is rarely included in pollinator trait analyses. This is likely due to the lack of standardized and efficient methods to measure hairiness. We describe a novel methodology that uses a stereomicroscope equipped with a live measurement module software to quantitatively measure two components of hairiness: hair density and hair length. We took measures of the two hairiness components in 109 insect pollinator species (including 52 bee species). We analyzed the relationship between hair density and length and between these two components and body size. We combined hair density and length measures to calculate a hairiness index and tested whether hairiness differed between major pollinator groups and bee genera. Body size was strongly and positively correlated to hair length and weakly and negatively correlated to hair density. The correlation between the two hairiness components was weak and negative. According to our hairiness index, butterflies and moths were the hairiest pollinator group, followed by bees, hoverflies, beetles, and other flies. Among bees, bumblebees (Bombus) and mason bees (Osmia) were the hairiest taxa, followed by digger bees (Anthophorinae), sand bees (Andrena), and sweat bees (Halictini). Our methodology provides an effective and standardized measure of the two components of hairiness (hair density and length), thus allowing for a meaningful interpretation of hairiness. We provide a detailed protocol of our methodology, which we hope will contribute to improve our understanding of pollination effectiveness, thermal biology, and responses to climate change in insects.
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Affiliation(s)
- Laura Roquer‐Beni
- CREAFUniversitat Autònoma de BarcelonaCerdanyola del VallèsCatalunyaSpain
| | - Anselm Rodrigo
- CREAFUniversitat Autònoma de BarcelonaCerdanyola del VallèsCatalunyaSpain
| | - Xavier Arnan
- CREAFUniversitat Autònoma de BarcelonaCerdanyola del VallèsCatalunyaSpain
| | | | - Felix Fornoff
- Nature Conservation and Landscape EcologyUniversity of FreiburgFreiburgGermany
| | - Virginie Boreux
- Nature Conservation and Landscape EcologyUniversity of FreiburgFreiburgGermany
| | - Jordi Bosch
- CREAFUniversitat Autònoma de BarcelonaCerdanyola del VallèsCatalunyaSpain
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31
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Begosh A, Smith LM, McMurry ST, Harris JP. Influence of the Conservation Reserve Program (CRP) and playa wetlands on pollinator communities in the Southern High Plains, USA. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 256:109910. [PMID: 31818736 DOI: 10.1016/j.jenvman.2019.109910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 11/19/2019] [Accepted: 11/19/2019] [Indexed: 06/10/2023]
Abstract
Numerous studies have documented that invertebrate pollinator services are critical to the world economy. Factors including habitat loss and agricultural practices, however, threaten pollinator populations. Many counties in the Southern High Plains were identified as at risk for a shortage of pollination service from wild bees. This region also has one of the highest concentrations of Conservation Reserve Program (CRP) contracts in the US. The CRP is the largest, voluntary, private lands conservation program in the US and was targeted as a program to improve pollinator habitat. Our objective was to determine how the predominant land uses in the SHP (native grassland, CRP, and cropland) affect pollinator abundance and species richness, and more specifically if the CRP can provide quality habitat for pollinators. We also examined how the keystone habitat, playa wetlands, embedded within these land uses contribute to pollinator habitat (land type: uplands vs. wetland). We used blue vane traps placed in playa basins and adjacent uplands to determine Hymenoptera abundance and richness from April to October in 2013 and 2014. The CRP had lower abundance than cropland and native grassland, and generally less richness. Uplands and playa wetlands had little difference in Hymenoptera abundance and richness. Patch size negatively influenced abundance but had a positive influence on richness. The interaction of vegetation height and percent bare ground positively influenced abundance in cropland and native grasslands, and positively influenced richness in all land uses. In the CRP, vegetation height negatively influenced Hymenoptera abundance and percent bare ground had a positive influence. The years sampled in this study were during a severe extended drought; therefore, these results may be reflective of poor floral resources. The CRP has potential to create valuable habitat for pollinators if land managers incorporate a diversity of native grasses and native forbs into plantings to enhance pollinator foraging and nesting habitat.
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Affiliation(s)
- Angela Begosh
- Department of Integrative Biology, Oklahoma State University, 501 Life Sciences West, Stillwater, OK, 74078, USA.
| | - Loren M Smith
- Department of Integrative Biology, Oklahoma State University, 501 Life Sciences West, Stillwater, OK, 74078, USA.
| | - Scott T McMurry
- Department of Integrative Biology, Oklahoma State University, 501 Life Sciences West, Stillwater, OK, 74078, USA.
| | - Jonathan P Harris
- Department of Integrative Biology, Oklahoma State University, 501 Life Sciences West, Stillwater, OK, 74078, USA.
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32
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Soroye P, Newbold T, Kerr J. Climate change contributes to widespread declines among bumble bees across continents. Science 2020; 367:685-688. [DOI: 10.1126/science.aax8591] [Citation(s) in RCA: 231] [Impact Index Per Article: 57.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 12/13/2019] [Indexed: 01/03/2023]
Abstract
Climate change could increase species’ extinction risk as temperatures and precipitation begin to exceed species’ historically observed tolerances. Using long-term data for 66 bumble bee species across North America and Europe, we tested whether this mechanism altered likelihoods of bumble bee species’ extinction or colonization. Increasing frequency of hotter temperatures predicts species’ local extinction risk, chances of colonizing a new area, and changing species richness. Effects are independent of changing land uses. The method developed in this study permits spatially explicit predictions of climate change–related population extinction-colonization dynamics within species that explains observed patterns of geographical range loss and expansion across continents. Increasing frequencies of temperatures that exceed historically observed tolerances help explain widespread bumble bee species decline. This mechanism may also contribute to biodiversity loss more generally.
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Affiliation(s)
- Peter Soroye
- Department of Biology, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Tim Newbold
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK
| | - Jeremy Kerr
- Department of Biology, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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33
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Newbold T, Bentley LF, Hill SLL, Edgar MJ, Horton M, Su G, Şekercioğlu ÇH, Collen B, Purvis A. Global effects of land use on biodiversity differ among functional groups. Funct Ecol 2020. [DOI: 10.1111/1365-2435.13500] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Tim Newbold
- Centre for Biodiversity & Environment Research Department of Genetics, Evolution and Environment University College London London UK
| | - Laura F. Bentley
- UN Environment World Conservation Monitoring Centre Cambridge UK
| | - Samantha L. L. Hill
- UN Environment World Conservation Monitoring Centre Cambridge UK
- Department of Life Sciences Natural History Museum London UK
| | | | - Matthew Horton
- Department of Life Sciences Imperial College London London UK
| | - Geoffrey Su
- Department of Life Sciences Imperial College London London UK
| | - Çağan H. Şekercioğlu
- Department of Biology University of Utah Salt Lake City UT USA
- College of Sciences Koç University Istanbul Turkey
| | - Ben Collen
- Centre for Biodiversity & Environment Research Department of Genetics, Evolution and Environment University College London London UK
| | - Andy Purvis
- Department of Life Sciences Natural History Museum London UK
- Department of Life Sciences Imperial College London London UK
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34
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Pecheur E, Piqueray J, Monty A, Dufrêne M, Mahy G. The influence of ecological infrastructures adjacent to crops on their carabid assemblages in intensive agroecosystems. PeerJ 2020; 8:e8094. [PMID: 31942249 PMCID: PMC6956773 DOI: 10.7717/peerj.8094] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 10/24/2019] [Indexed: 11/20/2022] Open
Abstract
Background Conserving biodiversity and enhancing ecosystem services of interest in intensive agroecosystems is a major challenge. Perennial ecological infrastructures (EIs), such as hedges and grassy strips, and annual EI under Agri-Environment Schemes appear to be good candidates to promote both. Our study focused on carabids, an indicator group responding both at the species and functional trait level to disturbances and supporting pest control and weed seed consumption services. Methods We compared carabid assemblages at the species and functional traits levels, sampled via pitfall trapping, in three types of EIs (hedges, grassy strips and annual flower strips) and crops. We also tested via GLMs the effect of (1) the type of EI at the crops' border and (2) the distance from the crops' border (two meters or 30 meters) on carabid assemblages of crops. Tested variables comprised: activity-density, species richness, functional dispersion metrics (FDis) and proportions of carabids by functional categories (Diet: generalist predators/specialist predators/seed-eaters; Size: small/medium/large/very large; Breeding period: spring/autumn). Results and Discussion Carabid assemblages on the Principal Coordinate Analysis split in two groups: crops and EIs. Assemblages from all sampled EIs were dominated by mobile generalist predator species from open-land, reproducing in spring. Assemblages of hedges were poor in activity-density and species richness, contrarily to grassy and annual flower strips. Differences in carabid assemblages in crops were mainly driven by the presence of hedges. The presence of hedges diminished the Community Weighted Mean size of carabids in crops, due to an increased proportion of small (<5 mm) individuals, while distance from crops' border favoured large (between 10-15 mm) carabids. Moreover, even if they were attracted by EIs, granivorous carabid species were rare in crops. Our results underlie the importance of local heterogeneity when adapting crops' borders to enhance carabid diversity and question the relevance of hedge implantation in intensive agrolandscapes, disconnected from any coherent ecological network. Moreover, this study emphasizes the difficulty to modify functional assemblages of crops for purposes of ecosystem services development, especially for weed seed consumption, as well as the role of distance from the crops' border in the shaping of crop carabid assemblages.
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Affiliation(s)
- Emilie Pecheur
- Gembloux Agro-Bio Tech, Biodiversity and Landscape, University of Liège, Gembloux, Belgium.,Gembloux Agro-Bio Tech, TERRA-AgricultureIsLife, University of Liège, Gembloux, Belgium
| | | | - Arnaud Monty
- Gembloux Agro-Bio Tech, Biodiversity and Landscape, University of Liège, Gembloux, Belgium.,Gembloux Agro-Bio Tech, TERRA-AgricultureIsLife, University of Liège, Gembloux, Belgium
| | - Marc Dufrêne
- Gembloux Agro-Bio Tech, Biodiversity and Landscape, University of Liège, Gembloux, Belgium.,Gembloux Agro-Bio Tech, TERRA-AgricultureIsLife, University of Liège, Gembloux, Belgium
| | - Grégory Mahy
- Gembloux Agro-Bio Tech, Biodiversity and Landscape, University of Liège, Gembloux, Belgium.,Gembloux Agro-Bio Tech, TERRA-AgricultureIsLife, University of Liège, Gembloux, Belgium
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35
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Land-use history impacts functional diversity across multiple trophic groups. Proc Natl Acad Sci U S A 2020; 117:1573-1579. [PMID: 31907310 DOI: 10.1073/pnas.1910023117] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Land-use change is a major driver of biodiversity loss worldwide. Although biodiversity often shows a delayed response to land-use change, previous studies have typically focused on a narrow range of current landscape factors and have largely ignored the role of land-use history in shaping plant and animal communities and their functional characteristics. Here, we used a unique database of 220,000 land-use records to investigate how 20-y of land-use changes have affected functional diversity across multiple trophic groups (primary producers, mutualists, herbivores, invertebrate predators, and vertebrate predators) in 75 grassland fields with a broad range of land-use histories. The effects of land-use history on multitrophic trait diversity were as strong as other drivers known to impact biodiversity, e.g., grassland management and current landscape composition. The diversity of animal mobility and resource-acquisition traits was lower in landscapes where much of the land had been historically converted from grassland to crop. In contrast, functional biodiversity was higher in landscapes containing old permanent grasslands, most likely because they offer a stable and high-quality habitat refuge for species with low mobility and specialized feeding niches. Our study shows that grassland-to-crop conversion has long-lasting impacts on the functional biodiversity of agricultural ecosystems. Accordingly, land-use legacy effects must be considered in conservation programs aiming to protect agricultural biodiversity. In particular, the retention of permanent grassland sanctuaries within intensive landscapes may offset ecological debts.
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36
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Uhl P, Brühl CA. The Impact of Pesticides on Flower-Visiting Insects: A Review with Regard to European Risk Assessment. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:2355-2370. [PMID: 31408220 DOI: 10.1002/etc.4572] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/22/2019] [Accepted: 08/08/2019] [Indexed: 05/28/2023]
Abstract
Flower-visiting insects (FVIs) are an ecologically diverse group of mobile, flying species that should be protected from pesticide effects according to European policy. However, there is an ongoing decline of FVI species, partly caused by agricultural pesticide applications. Therefore, the risk assessment framework needs to be improved. We synthesized the peer-reviewed literature on FVI groups and their ecology, habitat, exposure to pesticides, and subsequent effects. The results show that FVIs are far more diverse than previously thought. Their habitat, the entire agricultural landscape, is potentially contaminated with pesticides through multiple pathways. Pesticide exposure of FVIs at environmentally realistic levels can cause population-relevant adverse effects. This knowledge was used to critically evaluate the European regulatory framework of exposure and effect assessment. The current risk assessment should be amended to incorporate specific ecological properties of FVIs, that is, traits. We present data-driven tools to improve future risk assessments by making use of trait information. There are major knowledge gaps concerning the general investigation of groups other than bees, the collection of comprehensive data on FVI groups and their ecology, linking habitat to FVI exposure, and study of previously neglected complex population effects. This is necessary to improve our understanding of FVIs and facilitate the development of a more protective FVI risk assessment. Environ Toxicol Chem 2019;38:2355-2370. © 2019 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals, Inc. on behalf of SETAC.
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Affiliation(s)
- Philipp Uhl
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
| | - Carsten A Brühl
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
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37
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Martínez‐Núñez C, Manzaneda AJ, Isla J, Tarifa R, Calvo G, Molina JL, Salido T, Ruiz C, Gutiérrez JE, Rey PJ. Low‐intensity management benefits solitary bees in olive groves. J Appl Ecol 2019. [DOI: 10.1111/1365-2664.13511] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Carlos Martínez‐Núñez
- Department of Biología Animal Biología Vegetal y Ecología Universidad de Jaén Jaén Spain
| | - Antonio J. Manzaneda
- Department of Biología Animal Biología Vegetal y Ecología Universidad de Jaén Jaén Spain
| | - Jorge Isla
- Department of Biología Animal Biología Vegetal y Ecología Universidad de Jaén Jaén Spain
| | - Rubén Tarifa
- Estación Experimental de Zonas Áridas Almería Spain
| | - Gemma Calvo
- Department of Biología Animal Biología Vegetal y Ecología Universidad de Jaén Jaén Spain
| | - José L. Molina
- Department of Biología Animal Biología Vegetal y Ecología Universidad de Jaén Jaén Spain
| | - Teresa Salido
- Department of Biología Animal Biología Vegetal y Ecología Universidad de Jaén Jaén Spain
| | | | | | - Pedro J. Rey
- Department of Biología Animal Biología Vegetal y Ecología Universidad de Jaén Jaén Spain
- Instituto Interuniversitario del Sistema Tierra de Andalucía Universidad de Jaén Jaén Spain
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Adhikari S, Burkle LA, O'Neill KM, Weaver DK, Delphia CM, Menalled FD. Dryland Organic Farming Partially Offsets Negative Effects of Highly Simplified Agricultural Landscapes on Forbs, Bees, and Bee-Flower Networks. ENVIRONMENTAL ENTOMOLOGY 2019; 48:826-835. [PMID: 31144714 DOI: 10.1093/ee/nvz056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Indexed: 06/09/2023]
Abstract
Industrialized farming practices result in simplified agricultural landscapes, reduced biodiversity, and degraded species-interaction networks. Thus far, most research assessing the combined effects of farming systems and landscape complexity on beneficial insects has been conducted in relatively diversified and mesic systems and may not represent the large-scale, monoculture-based dryland agriculture that dominates many regions worldwide. Specifically, the effects of farming systems on forbs, bees, and their interactions are poorly understood in highly simplified dryland landscapes such as those in the Northern Great Plains, United States, an area globally important for conventional and organic small grain, pulse, forage, and oilseed production. During a 3-yr (2013-2015) study, we assessed 1) the effects of dryland no-till conventional and tilled organic farming on forbs, bees, and bee-flower networks and 2) the relationship between natural habitat and bee abundance. Flower density and richness were greater in tilled organic fields than in no-till conventional fields, and forb community composition differed between farming systems. We observed high bee diversity (109 taxa) in this highly simplified landscape, and bee abundance, richness, and community composition were similar between systems. Compared with tilled organic fields, bee-flower interactions in no-till conventional fields were poorly connected, suggesting these systems maintain relatively impoverished plant-pollinator networks. Natural habitat (11% of the landscape) did not affect small-bodied bee abundance in either farming system but positively affected large-bodied bees within 2,000 m of crop-field centers. In highly simplified agricultural landscapes, dryland organic farming and no-till conventional farming together support relatively high bee diversity, presumably because dryland organic farming enhances floral resources and bee-flower networks, and no-till management in conventional farming provides undisturbed ground-nesting habitats for wild bees (Hymenoptera: Apoidea).
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Affiliation(s)
- Subodh Adhikari
- Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT
| | - Laura A Burkle
- Department of Ecology, Montana State University, Bozeman, MT
| | - Kevin M O'Neill
- Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT
| | - David K Weaver
- Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT
| | - Casey M Delphia
- Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT
- Department of Ecology, Montana State University, Bozeman, MT
| | - Fabian D Menalled
- Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT
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39
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Male and female bees show large differences in floral preference. PLoS One 2019; 14:e0214909. [PMID: 31017928 PMCID: PMC6481915 DOI: 10.1371/journal.pone.0214909] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/24/2019] [Indexed: 11/19/2022] Open
Abstract
Background Intraspecific variation in foraging niche can drive food web dynamics and ecosystem processes. In particular, male and female animals can exhibit different, often cascading, impacts on their interaction partners. Despite this, studies of plant-pollinator interaction networks have focused on the partitioning of the floral community between pollinator species, with little attention paid to intraspecific variation in plant preference between male and female bees. We designed a field study to evaluate the strength and prevalence of sexually dimorphic foraging, and particularly resource preferences, in bees. Study design We observed bees visiting flowers in semi-natural meadows in New Jersey, USA. To detect differences in flower use against a shared background of resource (flower) availability, we maximized the number of interactions observed within narrow spatio-temporal windows. To distinguish observed differences in bee use of flower species, which can reflect abundance patterns and sampling effects, from underlying differences in bee preferences, we analyzed our data with both a permutation-based null model and random effects models. Findings We found that the diets of male and female bees of the same species were often dissimilar as the diets of different species of bees. Furthermore, we demonstrate differences in preference between male and female bees. We show that intraspecific differences in preference can be robustly identified among hundreds of unique species-species interactions, without precisely quantifying resource availability, and despite high phenological turnover of both bees and plant bloom. Given the large differences in both flower use and preferences between male and female bees, ecological sex differences should be integrated into studies of bee demography, plant pollination, and coevolutionary relationships between flowers and insects.
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40
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Martin EA, Dainese M, Clough Y, Báldi A, Bommarco R, Gagic V, Garratt MPD, Holzschuh A, Kleijn D, Kovács-Hostyánszki A, Marini L, Potts SG, Smith HG, Al Hassan D, Albrecht M, Andersson GKS, Asís JD, Aviron S, Balzan MV, Baños-Picón L, Bartomeus I, Batáry P, Burel F, Caballero-López B, Concepción ED, Coudrain V, Dänhardt J, Diaz M, Diekötter T, Dormann CF, Duflot R, Entling MH, Farwig N, Fischer C, Frank T, Garibaldi LA, Hermann J, Herzog F, Inclán D, Jacot K, Jauker F, Jeanneret P, Kaiser M, Krauss J, Le Féon V, Marshall J, Moonen AC, Moreno G, Riedinger V, Rundlöf M, Rusch A, Scheper J, Schneider G, Schüepp C, Stutz S, Sutter L, Tamburini G, Thies C, Tormos J, Tscharntke T, Tschumi M, Uzman D, Wagner C, Zubair-Anjum M, Steffan-Dewenter I. The interplay of landscape composition and configuration: new pathways to manage functional biodiversity and agroecosystem services across Europe. Ecol Lett 2019; 22:1083-1094. [PMID: 30957401 DOI: 10.1111/ele.13265] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 09/24/2018] [Accepted: 03/08/2019] [Indexed: 01/26/2023]
Abstract
Managing agricultural landscapes to support biodiversity and ecosystem services is a key aim of a sustainable agriculture. However, how the spatial arrangement of crop fields and other habitats in landscapes impacts arthropods and their functions is poorly known. Synthesising data from 49 studies (1515 landscapes) across Europe, we examined effects of landscape composition (% habitats) and configuration (edge density) on arthropods in fields and their margins, pest control, pollination and yields. Configuration effects interacted with the proportions of crop and non-crop habitats, and species' dietary, dispersal and overwintering traits led to contrasting responses to landscape variables. Overall, however, in landscapes with high edge density, 70% of pollinator and 44% of natural enemy species reached highest abundances and pollination and pest control improved 1.7- and 1.4-fold respectively. Arable-dominated landscapes with high edge densities achieved high yields. This suggests that enhancing edge density in European agroecosystems can promote functional biodiversity and yield-enhancing ecosystem services.
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Affiliation(s)
- Emily A Martin
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Matteo Dainese
- Institute for Alpine Environment, Eurac Research, Viale Druso 1, 39100, Bozen/Bolzano, Italy
| | - Yann Clough
- Centre for Environmental and Climate Research, Lund University, 22362, Lund, Sweden
| | - András Báldi
- MTA Centre for Ecological Research, Institute for Ecology and Botany, Lendület Ecosystem Services Research Group, Alkotmány u. 2-4, 2163, Vácrátót, Hungary
| | - Riccardo Bommarco
- Department of Ecology, Swedish University of Agricultural Sciences, SE-750 07, Uppsala, Sweden
| | - Vesna Gagic
- Commonwealth Scientific and Industrial Research Organisation, Dutton Park, Queensland, Australia
| | - Michael P D Garratt
- Centre for Agri-Environmental Research, School of Agriculture, Policy and Development, Reading University, RG6 6AR, UK
| | - Andrea Holzschuh
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - David Kleijn
- Plant Ecology and Nature Conservation Group, Wageningen University, Droevendaalsesteeg 3, 6708PB, Wageningen, The Netherlands
| | - Anikó Kovács-Hostyánszki
- MTA Centre for Ecological Research, Institute for Ecology and Botany, Lendület Ecosystem Services Research Group, Alkotmány u. 2-4, 2163, Vácrátót, Hungary
| | - Lorenzo Marini
- DAFNAE, University of Padova, Viale dell'Università 16, 35020, Legnaro (Padova), Italy
| | - Simon G Potts
- Centre for Agri-Environmental Research, School of Agriculture, Policy and Development, Reading University, RG6 6AR, UK
| | - Henrik G Smith
- Centre for Environmental and Climate Research, Lund University, 22362, Lund, Sweden.,Department of Biology, Lund University, 223 62, Lund, Sweden
| | - Diab Al Hassan
- UMR 6553 Ecobio, CNRS, Université de Rennes 1, Campus de Beaulieu, 35042, Rennes Cedex, France
| | - Matthias Albrecht
- Agroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046, Zurich, Switzerland
| | - Georg K S Andersson
- Centre for Environmental and Climate Research, Lund University, 22362, Lund, Sweden
| | - Josep D Asís
- Departamento de Biología Animal (Área de Zoología), Facultad de Biología, Universidad de Salamanca, Campus Miguel de Unamuno s/n, 37007, Salamanca, Spain
| | | | - Mario V Balzan
- Institute of Applied Sciences, Malta, College of Arts, Science and Technology (MCAST), Paola, Malta.,Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, I-56127, Pisa, Italy
| | - Laura Baños-Picón
- Departamento de Biología Animal (Área de Zoología), Facultad de Biología, Universidad de Salamanca, Campus Miguel de Unamuno s/n, 37007, Salamanca, Spain
| | - Ignasi Bartomeus
- Estación Biológica de Doñana (EBD-CSIC), E-41092, Sevilla, Spain
| | - Péter Batáry
- MTA ÖK Lendület Landscape and Conservation Ecology Research Group, Alkotmány u. 2-4, 2163, Vácrátót, Hungary
| | - Francoise Burel
- UMR 6553 Ecobio, CNRS, Université de Rennes 1, Campus de Beaulieu, 35042, Rennes Cedex, France
| | - Berta Caballero-López
- Department of Arthropods, Natural Sciences Museum of Barcelona, Castell dels Tres Dragons, Picasso Av, 08003, Barcelona, Spain
| | - Elena D Concepción
- Department of Biogeography and Global Change, National Museum of Natural Sciences, Spanish National Research Council (BGC-MNCN-CSIC), C/Serrano 115 bis, E-28006, Madrid, Spain
| | - Valérie Coudrain
- Mediterranean Institute of Marine and Terrestrial Biodiversity and Ecology (IMBE), Aix-Marseille University, CNRS, IRD, Univ. Avignon, 13545, Aix-en-Provence, France
| | - Juliana Dänhardt
- Centre for Environmental and Climate Research, Lund University, 22362, Lund, Sweden
| | - Mario Diaz
- Department of Biogeography and Global Change, National Museum of Natural Sciences, Spanish National Research Council (BGC-MNCN-CSIC), C/Serrano 115 bis, E-28006, Madrid, Spain
| | - Tim Diekötter
- Department of Landscape Ecology, Kiel University, Olshausenstrasse 75, 24118, Kiel, Germany
| | - Carsten F Dormann
- Biometry& Environmental System Analysis, University of Freiburg, Freiburg, Germany
| | - Rémi Duflot
- Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Martin H Entling
- Institute for Environmental Sciences, University of Koblenz-Landau, Fortstr. 7, 76829, Landau, Germany
| | - Nina Farwig
- Department of Conservation Ecology, Faculty of Biology, Philipps-University Marburg, Karl-von-Frisch Str. 8, 35043, Marburg, Germany
| | - Christina Fischer
- Restoration Ecology, Department of Ecology and Ecosystem Management, Technische Universität München, 85354, Freising, Germany
| | - Thomas Frank
- University of Natural Resources and Life Sciences, Department of Integrative Biology and Biodiversity Research, Institute of Zoology, Gregor Mendel Straße 33, A-1180, Vienna, Austria
| | - Lucas A Garibaldi
- Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural (IRNAD), Sede Andina, Universidad, Nacional de Río Negro (UNRN) and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mitre 630, CP 8400, San Carlos de Bariloche, Río Negro, Argentina
| | - John Hermann
- Department of Landscape Ecology, Kiel University, Olshausenstrasse 75, 24118, Kiel, Germany
| | - Felix Herzog
- Agroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046, Zurich, Switzerland
| | - Diego Inclán
- Instituto Nacional de Biodiversidad, INABIO - Facultad de Ciencias Agícolas, Universidad Central del Ecuador, Quito, 170129, Ecuador
| | - Katja Jacot
- Agroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046, Zurich, Switzerland
| | - Frank Jauker
- Department of Animal Ecology, Justus Liebig University, Heinrich-Buff-Ring 26-32, D-35392, Giessen, Germany
| | - Philippe Jeanneret
- Agroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046, Zurich, Switzerland
| | - Marina Kaiser
- Faculty of Biology, Institute of Zoology, University of Belgrade, Studentski trg 16, Belgrade, 11 000, Serbia
| | - Jochen Krauss
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Violette Le Féon
- INRA, UR 406 Abeilles et Environnement, Site Agroparc, 84914, Avignon, France
| | | | - Anna-Camilla Moonen
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, I-56127, Pisa, Italy
| | - Gerardo Moreno
- INDEHESA, Forestry School, Universidad de Extremadura, Plasencia, 10600, Spain
| | - Verena Riedinger
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Maj Rundlöf
- Department of Biology, Lund University, 223 62, Lund, Sweden
| | - Adrien Rusch
- INRA, UMR 1065 SAVE, ISVV, Université de Bordeaux, Bordeaux Sciences Agro, F-33883, Villenave d'Ornon, France
| | - Jeroen Scheper
- Animal Ecology Team, Wageningen Environmental Research, Droevendaalsesteeg 3, 6708 PB, Wageningen, The Netherlands
| | - Gudrun Schneider
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Christof Schüepp
- Institute of Ecology and Evolution, University of Bern, CH-3012, Bern, Switzerland
| | - Sonja Stutz
- CABI, Rue des Grillons 1, 2800, Delémont, Switzerland
| | - Louis Sutter
- Agroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046, Zurich, Switzerland
| | - Giovanni Tamburini
- Department of Ecology, Swedish University of Agricultural Sciences, SE-750 07, Uppsala, Sweden
| | - Carsten Thies
- Natural Resources Research Laboratory, Bremer Str. 15, 29308, Winsen, Germany
| | - José Tormos
- Departamento de Biología Animal (Área de Zoología), Facultad de Biología, Universidad de Salamanca, Campus Miguel de Unamuno s/n, 37007, Salamanca, Spain
| | - Teja Tscharntke
- Agroecology, University of Göttingen, Grisebachstrasse 6, 37077, Göttingen, Germany
| | - Matthias Tschumi
- Agroecology and Environment, Agroscope, Reckenholzstrasse 191, 8046, Zurich, Switzerland
| | - Deniz Uzman
- Department of Crop Protection, Geisenheim University, Von-Lade-Str. 1, 65366, Geisenheim, Germany
| | - Christian Wagner
- LfL, Bayerische Landesanstalt für Landwirtschaft, Institut für Ökologischen Landbau, Bodenkultur und Ressourcenschutz, Lange Point 12, 85354, Freising, Germany
| | - Muhammad Zubair-Anjum
- Department of Zoology & Biology, Faculty of Sciences, Pir Mehr Ali Shah Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Ingolf Steffan-Dewenter
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
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Powney GD, Carvell C, Edwards M, Morris RKA, Roy HE, Woodcock BA, Isaac NJB. Widespread losses of pollinating insects in Britain. Nat Commun 2019; 10:1018. [PMID: 30914632 PMCID: PMC6435717 DOI: 10.1038/s41467-019-08974-9] [Citation(s) in RCA: 228] [Impact Index Per Article: 45.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 02/04/2019] [Indexed: 11/14/2022] Open
Abstract
Pollination is a critical ecosystem service underpinning the productivity of agricultural systems across the world. Wild insect populations provide a substantial contribution to the productivity of many crops and seed set of wild flowers. However, large-scale evidence on species-specific trends among wild pollinators are lacking. Here we show substantial inter-specific variation in pollinator trends, based on occupancy models for 353 wild bee and hoverfly species in Great Britain between 1980 and 2013. Furthermore, we estimate a net loss of over 2.7 million occupied 1 km2 grid cells across all species. Declines in pollinator evenness suggest that losses were concentrated in rare species. In addition, losses linked to specific habitats were identified, with a 55% decline among species associated with uplands. This contrasts with dominant crop pollinators, which increased by 12%, potentially in response agri-environment measures. The general declines highlight a fundamental deterioration in both wider biodiversity and non-crop pollination services. Pollinator loss is a concern but data on their status is lacking. Here Powney et al. use occupancy modelling to estimate the degree of loss in wild bee and hoverfly species across Great Britain, and report a 55% decline in upland species and a 12% increase in dominant crop pollinators.
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Affiliation(s)
- Gary D Powney
- Biodiversity Science Area, Centre for Ecology and Hydrology, Wallingford, OX10 8BB, UK.
| | - Claire Carvell
- Biodiversity Science Area, Centre for Ecology and Hydrology, Wallingford, OX10 8BB, UK
| | - Mike Edwards
- BWARS (Bees, Wasps and Ants Recording Society), Leaside, Carron Lane, West Sussex, GU29 9LB, UK
| | - Roger K A Morris
- UK Hoverfly Recording Scheme, Vine Street, Stamford, Lincolnshire, PE9 1QE, UK
| | - Helen E Roy
- Biodiversity Science Area, Centre for Ecology and Hydrology, Wallingford, OX10 8BB, UK
| | - Ben A Woodcock
- Biodiversity Science Area, Centre for Ecology and Hydrology, Wallingford, OX10 8BB, UK
| | - Nick J B Isaac
- Biodiversity Science Area, Centre for Ecology and Hydrology, Wallingford, OX10 8BB, UK
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42
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Hofmann MM, Zohner CM, Renner SS. Narrow habitat breadth and late-summer emergence increases extinction vulnerability in Central European bees. Proc Biol Sci 2019; 286:20190316. [PMID: 30836868 DOI: 10.1098/rspb.2019.0316] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Evaluating intrinsic and extrinsic traits that predispose species to local extinction is important for targeting conservation efforts. Among the species of special concern in Europe are bees, which, along with butterflies, are the best monitored insects. Bees are most species-rich in Mediterranean-type climates with short winters, warm springs, and dry summers. In Central Europe, climate warming per se is, therefore, expected to benefit most bee species, while pesticides and the loss of habitats and plant diversity should constitute threats. Here, we use the bee fauna of Germany, which has been monitored for Red Lists for over 40 years, to analyse the effects of habitat breadth, pollen specialization, body size, nesting sites, sociality, duration of flight activity, and time of emergence during the season. We tested each factor's predictive power against changes in commonness and Red List status, using phylogenetically informed hierarchical Bayesian (HB) models. Extinction vulnerability is strongly increased in bees flying in late summer, with a statistical model that included flight time, habitat preference, and duration of activity correctly predicting the vulnerability status of 85% of the species. Conversely, spring emergence and occurrence in urban areas each reduce vulnerability, pointing to intensive land use especially harming summer-active bees, with the combination of these factors currently shifting Germany's bee diversity towards warm-adapted, spring-flying, city-dwelling species.
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Affiliation(s)
- Michaela M Hofmann
- 1 Systematic Botany and Mycology, Department of Biology, University of Munich (LMU) , Menzinger Straße 67, Munich 80638 , Germany
| | - Constantin M Zohner
- 2 Institute of Integrative Biology, ETH Zurich (Swiss Federal Institute of Technology) , Universitätsstrasse 16, 8092 Zurich , Switzerland
| | - Susanne S Renner
- 1 Systematic Botany and Mycology, Department of Biology, University of Munich (LMU) , Menzinger Straße 67, Munich 80638 , Germany
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43
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Buhk C, Oppermann R, Schanowski A, Bleil R, Lüdemann J, Maus C. Flower strip networks offer promising long term effects on pollinator species richness in intensively cultivated agricultural areas. BMC Ecol 2018; 18:55. [PMID: 30514253 PMCID: PMC6280486 DOI: 10.1186/s12898-018-0210-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 11/23/2018] [Indexed: 12/28/2022] Open
Abstract
Background Intensively cultivated agricultural landscapes often suffer from substantial pollinator losses, which may be leading to decreasing pollination services for crops and wild flowering plants. Conservation measures that are easy to implement and accepted by farmers are needed to halt a further loss of pollinators in large areas under intensive agricultural management. Here we report the results of a replicated long-term study involving networks of mostly perennial flower strips covering 10% of a conventionally managed agricultural landscape in southwestern Germany. Results We demonstrate the considerable success of these measures for wild bee and butterfly species richness over an observation period of 5 years. Overall species richness of bees and butterflies but also the numbers of specialist bee species clearly increased in the ecological enhancement areas as compared to the control areas without ecological enhancement measures. A three to five-fold increase in species richness was found after more than 2 years of enhancement of the areas with flower strips. Oligolectic bee species increased significantly only after the third year. Conclusions In our long-term field experiment we used a large variety of seed mixtures and temporal variation in seeding time, ensured continuity of the flower-strips by using perennial seed mixtures and distributed the measures over c. 10% of the landscape. This led to an increase in pollinator abundance, suggesting that these measures may be instrumental for the successful support of pollinators. These measures may ensure the availability of a network of diverse habitats and foraging resources for pollinators throughout the year, as well as nesting sites for many species. The measures are applied in-field and are suitable for application in areas under intensive agriculture. We propose that flower strip networks should be implemented much more in the upcoming CAP (common agricultural policy) reform in the European Union and promoted more by advisory services for farmers. Electronic supplementary material The online version of this article (10.1186/s12898-018-0210-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Constanze Buhk
- Institute of Agroecology and Biodiversity (IFAB), Böcklinstr. 27, 68163, Mannheim, Germany. .,Institute for Environmental Sciences, University Koblenz-Landau, 76829, Landau, Germany.
| | - Rainer Oppermann
- Institute of Agroecology and Biodiversity (IFAB), Böcklinstr. 27, 68163, Mannheim, Germany
| | - Arno Schanowski
- Institut für Landschaftsökologie und Naturschutz (ILN), Sandbachstr. 2, 77815, Bühl, Germany
| | - Richard Bleil
- Institute of Agroecology and Biodiversity (IFAB), Böcklinstr. 27, 68163, Mannheim, Germany
| | - Julian Lüdemann
- Institute of Agroecology and Biodiversity (IFAB), Böcklinstr. 27, 68163, Mannheim, Germany
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Carril OM, Griswold T, Haefner J, Wilson JS. Wild bees of Grand Staircase-Escalante National Monument: richness, abundance, and spatio-temporal beta-diversity. PeerJ 2018; 6:e5867. [PMID: 30425889 PMCID: PMC6230437 DOI: 10.7717/peerj.5867] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 10/03/2018] [Indexed: 11/25/2022] Open
Abstract
Interest in bees has grown dramatically in recent years in light of several studies that have reported widespread declines in bees and other pollinators. Investigating declines in wild bees can be difficult, however, due to the lack of faunal surveys that provide baseline data of bee richness and diversity. Protected lands such as national monuments and national parks can provide unique opportunities to learn about and monitor bee populations dynamics in a natural setting because the opportunity for large-scale changes to the landscape are reduced compared to unprotected lands. Here we report on a 4-year study of bees in Grand Staircase-Escalante National Monument (GSENM), found in southern Utah, USA. Using opportunistic collecting and a series of standardized plots, we collected bees throughout the six-month flowering season for four consecutive years. In total, 660 bee species are now known from the area, across 55 genera, and including 49 new species. Two genera not previously known to occur in the state of Utah were discovered, as well as 16 new species records for the state. Bees include ground-nesters, cavity- and twig-nesters, cleptoparasites, narrow specialists, generalists, solitary, and social species. The bee fauna reached peak diversity each spring, but also experienced a second peak in diversity in late summer, following monsoonal rains. The majority of GSENM’s bees are highly localized, occurring in only a few locations throughout the monument, and often in low abundance, but consistently across the four years. Only a few species are widespread and super-abundant. Certain flowering plants appear to be inordinately attractive to the bees in GSENM, including several invasive species. GSENM protects one of the richest bee faunas in the west; the large elevational gradient, incredible number of flowering plants, and the mosaic of habitats are all likely contributors to this rich assemblage of bees.
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Affiliation(s)
| | - Terry Griswold
- USDA-ARS Pollinating Insects Research Unit, Logan, UT, United States of America
| | - James Haefner
- Biology Department, Emeritus Professor, Utah State University, Logan, UT, United States of America
| | - Joseph S Wilson
- Department of Biology, Utah State University - Tooele, Tooele, UT, United States of America
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Desaegher J, Nadot S, Fontaine C, Colas B. Floral morphology as the main driver of flower-feeding insect occurrences in the Paris region. Urban Ecosyst 2018. [DOI: 10.1007/s11252-018-0759-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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46
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Harrison T, Gibbs J, Winfree R. Forest bees are replaced in agricultural and urban landscapes by native species with different phenologies and life-history traits. GLOBAL CHANGE BIOLOGY 2018; 24:287-296. [PMID: 28976620 DOI: 10.1111/gcb.13921] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 07/31/2017] [Accepted: 09/12/2017] [Indexed: 05/08/2023]
Abstract
Anthropogenic landscapes are associated with biodiversity loss and large shifts in species composition and traits. These changes predict the identities of winners and losers of future global change, and also reveal which environmental variables drive a taxon's response to land use change. We explored how the biodiversity of native bee species changes across forested, agricultural, and urban landscapes. We collected bee community data from 36 sites across a 75,000 km2 region, and analyzed bee abundance, species richness, composition, and life-history traits. Season-long bee abundance and richness were not detectably different between natural and anthropogenic landscapes, but community phenologies differed strongly, with an early spring peak followed by decline in forests, and a more extended summer season in agricultural and urban habitats. Bee community composition differed significantly between all three land use types, as did phylogenetic composition. Anthropogenic land use had negative effects on the persistence of several life-history strategies, including early spring flight season and brood parasitism, which may indicate adaptation to conditions in forest habitat. Overall, anthropogenic communities are not diminished subsets of contemporary natural communities. Rather, forest species do not persist in anthropogenic habitats, but are replaced by different native species and phylogenetic lineages preadapted to open habitats. Characterizing compositional and functional differences is crucial for understanding land use as a global change driver across large regional scales.
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Affiliation(s)
- Tina Harrison
- Department of Ecology, Evolution & Natural Resources, Rutgers University, New Brunswick, NJ, USA
| | - Jason Gibbs
- Department of Entomology, University of Manitoba, Winnipeg, Canada
| | - Rachael Winfree
- Department of Ecology, Evolution & Natural Resources, Rutgers University, New Brunswick, NJ, USA
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Purvis A, Newbold T, De Palma A, Contu S, Hill SL, Sanchez-Ortiz K, Phillips HR, Hudson LN, Lysenko I, Börger L, Scharlemann JP. Modelling and Projecting the Response of Local Terrestrial Biodiversity Worldwide to Land Use and Related Pressures: The PREDICTS Project. ADV ECOL RES 2018. [DOI: 10.1016/bs.aecr.2017.12.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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Phillips HRP, Knapp S, Purvis A. Estimating the potential biodiversity impact of redeveloping small urban spaces: the Natural History Museum's grounds. PeerJ 2017; 5:e3914. [PMID: 29104821 PMCID: PMC5667537 DOI: 10.7717/peerj.3914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 09/21/2017] [Indexed: 12/04/2022] Open
Abstract
Background With the increase in human population, and the growing realisation of the importance of urban biodiversity for human wellbeing, the ability to predict biodiversity loss or gain as a result of land use change within urban settings is important. Most models that link biodiversity and land use are at too coarse a scale for informing decisions, especially those related to planning applications. Using the grounds of the Natural History Museum, London, we show how methods used in global models can be applied to smaller spatial scales to inform urban planning. Methods Data were extracted from relevant primary literature where species richness had been recorded in more than one habitat type within an urban setting. As within-sample species richness will increase with habitat area, species richness estimates were also converted to species density using theory based on the species–area relationship. Mixed-effects models were used to model the impact on species richness and species density of different habitat types, and to estimate these metrics in the current grounds and under proposed plans for redevelopment. We compared effects of three assumptions on how within-sample diversity scales with habitat area as a sensitivity analysis. A pre-existing database recording plants within the grounds was also used to estimate changes in species composition across different habitats. Results Analysis estimated that the proposed plans would result in an increase of average biodiversity of between 11.2% (when species density was modelled) and 14.1% (when within-sample species richness was modelled). Plant community composition was relatively similar between the habitats currently within the grounds. Discussion The proposed plans for change in the NHM grounds are estimated to result in a net gain in average biodiversity, through increased number and extent of high-diversity habitats. In future, our method could be improved by incorporating purposefully collected ecological survey data (if resources permit) and by expanding the data sufficiently to allow modelling of the temporal dynamics of biodiversity change after habitat disturbance and creation. Even in its current form, the method produces transparent quantitative estimates, grounded in ecological data and theory, which can be used to inform relatively small scale planning decisions.
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Affiliation(s)
- Helen R P Phillips
- Department of Life Sciences, Imperial College London, London, United Kingdom.,Department of Life Sciences, Natural History Museum, London, London, United Kingdom.,German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.,Leipzig Universität, Leipzig, Germany
| | - Sandra Knapp
- Department of Life Sciences, Natural History Museum, London, London, United Kingdom
| | - Andy Purvis
- Department of Life Sciences, Imperial College London, London, United Kingdom.,Department of Life Sciences, Natural History Museum, London, London, United Kingdom
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49
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Bartomeus I, Cariveau DP, Harrison T, Winfree R. On the inconsistency of pollinator species traits for predicting either response to land-use change or functional contribution. OIKOS 2017. [DOI: 10.1111/oik.04507] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
| | - Daniel P. Cariveau
- Dept of Ecology; Evolution and Natural Resources, Rutgers Univ., The State Univ. of New Jersey; New Brunswick NJ 08901 USA
- Dept of Entomology; Univ. of Minnesota; Saint Paul MN USA
| | - Tina Harrison
- Dept of Ecology; Evolution and Natural Resources, Rutgers Univ., The State Univ. of New Jersey; New Brunswick NJ 08901 USA
| | - Rachael Winfree
- Dept of Ecology; Evolution and Natural Resources, Rutgers Univ., The State Univ. of New Jersey; New Brunswick NJ 08901 USA
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De Palma A, Kuhlmann M, Bugter R, Ferrier S, Hoskins AJ, Potts SG, Roberts SPM, Schweiger O, Purvis A. Dimensions of biodiversity loss: Spatial mismatch in land-use impacts on species, functional and phylogenetic diversity of European bees. DIVERS DISTRIB 2017; 23:1435-1446. [PMID: 29200933 PMCID: PMC5699437 DOI: 10.1111/ddi.12638] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Aim Agricultural intensification and urbanization are important drivers of biodiversity change in Europe. Different aspects of bee community diversity vary in their sensitivity to these pressures, as well as independently influencing ecosystem service provision (pollination). To obtain a more comprehensive understanding of human impacts on bee diversity across Europe, we assess multiple, complementary indices of diversity. Location One Thousand four hundred and forty six sites across Europe. Methods We collated data on bee occurrence and abundance from the published literature and supplemented them with the PREDICTS database. Using Rao's Quadratic Entropy, we assessed how species, functional and phylogenetic diversity of 1,446 bee communities respond to land‐use characteristics including land‐use class, cropland intensity, human population density and distance to roads. We combined these models with statistically downscaled estimates of land use in 2005 to estimate and map—at a scale of approximately 1 km2—the losses in diversity relative to semi‐natural/natural baseline (the predicted diversity of an uninhabited grid square, consisting only of semi‐natural/natural vegetation). Results We show that—relative to the predicted local diversity in uninhabited semi‐natural/natural habitat—half of all EU27 countries have lost over 10% of their average local species diversity and two‐thirds of countries have lost over 5% of their average local functional and phylogenetic diversity. All diversity measures were generally lower in pasture and higher‐intensity cropland than in semi‐natural/natural vegetation, but facets of diversity showed less consistent responses to human population density. These differences have led to marked spatial mismatches in losses: losses in phylogenetic diversity were in some areas almost 20 percentage points (pp.) more severe than losses in species diversity, but in other areas losses were almost 40 pp. less severe. Main conclusions These results highlight the importance of exploring multiple measures of diversity when prioritizing and evaluating conservation actions, as species‐diverse assemblages may be phylogenetically and functionally impoverished, potentially threatening pollination service provision.
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Affiliation(s)
- Adriana De Palma
- Department of Life Sciences Natural History Museum London SW7 5BD UK.,Department of Life Sciences Imperial College London Ascot SL5 7PY UK
| | - Michael Kuhlmann
- Department of Life Sciences Natural History Museum London SW7 5BD UK.,Zoological Museum University of Kiel Kiel Germany
| | - Rob Bugter
- Wageningen Environmental Research (Alterra) Wageningen P.O. Box 47, 6700 AA The Netherlands
| | | | | | - Simon G Potts
- Centre for Agri-Environmental Research School of Agriculture, Policy and Development The University of Reading Reading RG6 6AR UK
| | - Stuart P M Roberts
- Centre for Agri-Environmental Research School of Agriculture, Policy and Development The University of Reading Reading RG6 6AR UK
| | - Oliver Schweiger
- Helmholtz Centre for Environmental Research-UFZ Department of Community Ecology 06120 Halle Germany
| | - Andy Purvis
- Department of Life Sciences Natural History Museum London SW7 5BD UK.,Department of Life Sciences Imperial College London Ascot SL5 7PY UK
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