1
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Alagador D. Effective conservation planning of Iberian amphibians based on a regionalization of climate-driven range shifts. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2023; 37:e14026. [PMID: 36317717 DOI: 10.1111/cobi.14026] [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: 06/01/2022] [Revised: 08/11/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Amphibians are severely affected by climate change, particularly in regions where droughts prevail and water availability is scarce. The extirpation of amphibians triggers cascading effects that disrupt the trophic structure of food webs and ecosystems. Dedicated assessments of the spatial adaptive potential of amphibian species under climate change are, therefore, essential to provide guidelines for their effective conservation. I used predictions about the location of suitable climates for 27 amphibian species in the Iberian Peninsula from a baseline period to 2080 to typify shifting species' ranges. The time at which these range types are expected to be functionally important for the adaptation of a species was used to identify full or partial refugia; areas most likely to be the home of populations moving into new climatically suitable grounds; areas most likely to receive populations after climate adaptive dispersal; and climatically unsuitable areas near suitable areas. I implemented an area prioritization protocol for each species to obtain a cohesive set of areas that would provide maximum adaptability and where management interventions should be prioritized. A connectivity assessment pinpointed where facilitative strategies would be most effective. Each of the 27 species had distinct spatial requirements but, common to all species, a bottleneck effect was predicted by 2050 because source areas for subsequent dispersal were small in extent. Three species emerged as difficult to maintain up to 2080. The Iberian northwest was predicted to capture adaptive range for most species. My study offers analytical guidelines for managers and decision makers to undertake systematic assessments on where and when to intervene to maximize the persistence of amphibian species and the functionality of the ecosystems that depend on them.
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Affiliation(s)
- Diogo Alagador
- The Biodiversity Chair, Institute for Advanced Studies and Research, Universidade de Évora, Évora, Portugal
- MED - Mediterranean Institute for Agriculture, Environment and Development, CHANGE - Global Change and Sustainability Institute, Universidade de Évora, Évora, Portugal
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2
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Tong Q, Dong WJ, Long XZ, Hu ZF, Luo ZW, Guo P, Cui LY. Effects of fine-scale habitat quality on activity, dormancy, habitat use, and survival after reproduction in Rana dybowskii (Chordata, Amphibia). BMC ZOOL 2023; 8:1. [PMID: 37170169 PMCID: PMC10127375 DOI: 10.1186/s40850-022-00163-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 12/20/2022] [Indexed: 01/19/2023] Open
Abstract
AbstractAmphibians are facing population declines and extinctions, and protecting and supplementing refuges can help species survive. However, the microhabitat requirements of most species are unknown, and artificial shelters or burrows have not been well tested for amphibians. Some amphibians exhibit complex behaviour during the transition from post-reproductive dormancy to activity. However, little is known about the ecology, post-reproductive dormancy, and terrestrial activity of amphibians. Here, habitat site selection in experimental enclosures and the effects of shelters (stones, soil) and shade (with and without shade netting) on the activity, exposed body percentage, burrow depth, body-soil contact percentage, and survival of Rana dybowskii were investigated during post-reproductive dormancy and post-dormant activity. The results showed that R. dybowskii live individually under leaves, soil, stones or tree roots. Furthermore, although the dormant sites of frogs are significantly different, the distribution of male and female frogs in these sites is similar. Shading and shelter significantly affected the exposed body percentage, burrow depth and body-soil contact percentage of frogs compared with soil. In the stone group, soil and stone form the frog's refuge/burrow, whereas in the soil group, the refuge/burrow is composed entirely of soil. Even though the soil group has a deeper burrow and a larger area of soil contact with the body, it still has a higher exposure rate than the stone group. Frog activity frequency was affected by shelter and shade; the interaction of shelter and time and the interaction of shading and time were significant. The soil group had a higher activity frequency than the stone group, and the no-shade group had a higher activity frequency than the shade group. Shelter and shading differences do not significantly affect frog survival; however, the death rate during post-reproductive dormancy is lower than that during the active period.
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3
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Mathwin R, Wassens S, Gibbs MS, Young J, Ye Q, Saltré F, Bradshaw CJA. Modeling the effects of water regulation on the population viability of a threatened amphibian. Ecosphere 2023. [DOI: 10.1002/ecs2.4379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Rupert Mathwin
- Global Ecology (Partuyarta Ngadluku Wardli Kuu), College of Science and Engineering Flinders University Adelaide South Australia Australia
| | - Skye Wassens
- School of Environmental Sciences Charles Sturt University Albury New South Wales Australia
| | - Matthew S. Gibbs
- School of Civil, Environmental and Mining Engineering The University of Adelaide Adelaide South Australia Australia
- Land and Water, Commonwealth Science and Industrial Research Organisation (CSIRO) Urrbrae South Australia Australia
| | - Jeanne Young
- College of Science and Engineering Flinders University Adelaide South Australia Australia
| | - Qifeng Ye
- College of Science and Engineering Flinders University Adelaide South Australia Australia
- South Australian Research and Development Institute West Beach South Australia Australia
| | - Frédérik Saltré
- Global Ecology (Partuyarta Ngadluku Wardli Kuu), College of Science and Engineering Flinders University Adelaide South Australia Australia
- ARC Centre of Excellence for Australian Biodiversity and Heritage (EpicAustralia.org.au) Wollongong New South Wales Australia
| | - Corey J. A. Bradshaw
- Global Ecology (Partuyarta Ngadluku Wardli Kuu), College of Science and Engineering Flinders University Adelaide South Australia Australia
- ARC Centre of Excellence for Australian Biodiversity and Heritage (EpicAustralia.org.au) Wollongong New South Wales Australia
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4
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Olson DH, Pilliod DS. Elevating human dimensions of amphibian and reptile conservation, a
USA
perspective. CONSERVATION SCIENCE AND PRACTICE 2022. [DOI: 10.1111/csp2.12685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Deanna H. Olson
- U.S.D.A. Forest Service, Pacific Northwest Research Station Corvallis Oregon USA
| | - David S. Pilliod
- U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center Boise Idaho USA
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Beranek CT, Sanders S, Clulow J, Mahony M. Factors influencing persistence of a threatened amphibian in restored wetlands despite severe population decline during climate change driven weather extremes. BIODIVERSITY AND CONSERVATION 2022; 31:1267-1287. [PMID: 35261489 PMCID: PMC8893051 DOI: 10.1007/s10531-022-02387-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 02/01/2022] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
UNLABELLED Biodiversity is in global decline during the Anthropocene. Declines have been caused by multiple factors, such as habitat removal, invasive species, and disease, which are often targets for conservation management. However, conservation interventions are under threat from climate change induced weather extremes. Weather extremes are becoming more frequent and devastating and an example of this was the 2019/2020 Australian drought and mega-fires. We provide a case study the impacts of these extreme weather events had on a population of the threatened frog Litoria aurea that occurs in a constructed habitat which was designed to reduce the impact of introduced fish and chytrid-induced disease. We aimed to determine what factors influenced persistence so that the design of wetlands can be further optimised to future-proof threatened amphibians. We achieved this with 4 years (2016-2020) of intensive capture-recapture surveys during austral spring and summer across nine wetlands (n = 94 repeat surveys). As hypothesized, drought caused a sharp reduction in population size, but persistence was achieved. The most parsimonious predictor of survival was an interaction between maximum air temperature and rainfall, indicating that weather extremes likely caused the decline. Survival was positively correlated with wetland vegetation coverage, positing this is an important feature to target to enhance resilience in wetland restoration programs. Additionally, the benefits obtained from measures to reduce chytrid prevalence were not compromised during drought, as there was a positive correlation between salinity and survival. We emphasize that many species may not be able to persist under worse extreme weather scenarios. Despite the potential for habitat augmentation to buffer effects of extreme weather, global action on climate change is needed to reduce extinction risk. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10531-022-02387-9.
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Affiliation(s)
- Chad T. Beranek
- Conservation Science Research Group, School of Environmental and life Sciences, Biology Building, University of Newcastle, University Drive, 2308 Callaghan, NSW Australia
- FAUNA Research Alliance, PO Box 5092, 2290 Kahibah, NSW Australia
| | - Samantha Sanders
- Conservation Science Research Group, School of Environmental and life Sciences, Biology Building, University of Newcastle, University Drive, 2308 Callaghan, NSW Australia
| | - John Clulow
- Conservation Science Research Group, School of Environmental and life Sciences, Biology Building, University of Newcastle, University Drive, 2308 Callaghan, NSW Australia
- FAUNA Research Alliance, PO Box 5092, 2290 Kahibah, NSW Australia
| | - Michael Mahony
- Conservation Science Research Group, School of Environmental and life Sciences, Biology Building, University of Newcastle, University Drive, 2308 Callaghan, NSW Australia
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6
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Moss WE, McDevitt-Galles T, Muths E, Bobzien S, Purificato J, Johnson PTJ. Resilience of native amphibian communities following catastrophic drought: Evidence from a decade of regional-scale monitoring. BIOLOGICAL CONSERVATION 2021; 263:109352. [PMID: 34737459 PMCID: PMC8562680 DOI: 10.1016/j.biocon.2021.109352] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The increasing frequency and severity of drought may exacerbate ongoing global amphibian declines. However, interactions between drought and coincident stressors, coupled with high interannual variability in amphibian abundances, can mask the extent and underlying mechanisms of drought impacts. We synthesized a decade (2009 - 2019) of regional-scale amphibian monitoring data (2273 surveys, 233 ponds, and seven species) from across California's Bay Area and used dynamic occupancy modeling to estimate trends and drivers of species occupancy. An extreme drought during the study period resulted in substantial habitat loss, with 51% of ponds drying in the worst year of drought, compared to <20% in pre-drought years. Nearly every species exhibited reduced breeding activity during the drought, with the occupancy of some species (American bullfrogs and California newts) declining by >25%. Invasive fishes and bullfrogs were also associated with reduced amphibian occupancy, and these taxa were locally extirpated from numerous sites during drought, without subsequent recovery-suggesting that drought may present an opportunity to remove invaders. Despite a historic, multi-year drought, native amphibians rebounded quickly to pre-drought occupancy levels, demonstrating evidence of resilience. Permanent waterbodies supported higher persistence of native species during drought years than did temporary waterbodies, and we therefore highlight the value of hydroperiod diversity in promoting amphibian stability.
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Affiliation(s)
- Wynne E. Moss
- University of Colorado, Department of Ecology & Evolutionary Biology, Boulder, CO
- Conservation Science Partners, Inc. Fort Collins, CO
| | | | - Erin Muths
- U.S. Geological Survey, Fort Collins Science Center, Fort Collins, CO
| | | | | | - Pieter T. J. Johnson
- University of Colorado, Department of Ecology & Evolutionary Biology, Boulder, CO
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7
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Hoffmann EP, Mitchell NJ. Breeding phenology of a terrestrial‐breeding frog is associated with soil water potential: Implications for conservation in a changing climate. AUSTRAL ECOL 2021. [DOI: 10.1111/aec.13122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Emily P. Hoffmann
- School of School of Biological Sciences The University of Western Australia Crawley Western Australia 6009 Australia
| | - Nicola J. Mitchell
- School of School of Biological Sciences The University of Western Australia Crawley Western Australia 6009 Australia
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8
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Scheele BC, Hollanders M, Hoffmann EP, Newell DA, Lindenmayer DB, McFadden M, Gilbert DJ, Grogan LF. Conservation translocations for amphibian species threatened by chytrid fungus: A review, conceptual framework, and recommendations. CONSERVATION SCIENCE AND PRACTICE 2021. [DOI: 10.1111/csp2.524] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Ben C. Scheele
- Fenner School of Environment and Society Australian National University Canberra Australian Capital Territory Australia
| | - Matthijs Hollanders
- Faculty of Science and Engineering Southern Cross University Lismore New South Wales Australia
| | - Emily P. Hoffmann
- Fenner School of Environment and Society Australian National University Canberra Australian Capital Territory Australia
- School of Biological Sciences The University of Western Australia Crawley Western Australia Australia
| | - David A. Newell
- Faculty of Science and Engineering Southern Cross University Lismore New South Wales Australia
| | - David B. Lindenmayer
- Fenner School of Environment and Society Australian National University Canberra Australian Capital Territory Australia
| | - Michael McFadden
- Taronga Conservation Society Australia Mosman New South Wales Australia
| | - Deon J. Gilbert
- Wildlife Conservation and Science Zoos Victoria Parkville Victoria Australia
| | - Laura F. Grogan
- Centre for Planetary Health and Food Security, School of Environment and Science Griffith University Southport Queensland Australia
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9
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Lee RH, Morgan B, Liu C, Fellowes JR, Guénard B. Secondary forest succession buffers extreme temperature impacts on subtropical Asian ants. ECOL MONOGR 2021. [DOI: 10.1002/ecm.1480] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Roger Ho Lee
- School of Biological Sciences The University of Hong Kong Pokfulam Hong Kong
| | - Brett Morgan
- School of Biological Sciences The University of Hong Kong Pokfulam Hong Kong
| | - Cong Liu
- Department of Organismic and Evolutional Biology, Museum of Comparative Zoology Harvard University 26 Oxford Street Cambridge Massachusetts 02138 USA
| | | | - Benoit Guénard
- School of Biological Sciences The University of Hong Kong Pokfulam Hong Kong
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10
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Baker DJ, Dickson CR, Bergstrom DM, Whinam J, Maclean IM, McGeoch MA. Evaluating models for predicting microclimates across sparsely vegetated and topographically diverse ecosystems. DIVERS DISTRIB 2021. [DOI: 10.1111/ddi.13398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- David J. Baker
- Environment and Sustainability Institute University of Exeter Penryn Cornwall UK
- School of Biological Sciences Monash University Clayton Vic. Australia
| | | | - Dana M. Bergstrom
- Australian Antarctic Division Department of Agriculture, Water and the Environment Kingston TAS Australia
| | - Jennie Whinam
- School of Geography and Spatial Science University of Tasmania Hobart TAS Australia
| | - Ilya M.D. Maclean
- Environment and Sustainability Institute University of Exeter Penryn Cornwall UK
| | - Melodie A. McGeoch
- School of Biological Sciences Monash University Clayton Vic. Australia
- Department of Ecology, Environment and Evolution La Trobe University Melbourne Vic. Australia
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11
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Pilliod DS, Hausner MB, Scherer RD. From satellites to frogs: Quantifying ecohydrological change, drought mitigation, and population demography in desert meadows. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 758:143632. [PMID: 33218818 DOI: 10.1016/j.scitotenv.2020.143632] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/02/2020] [Accepted: 11/07/2020] [Indexed: 06/11/2023]
Abstract
Increasing frequency and severity of droughts have motivated natural resource managers to mitigate harmful ecological and hydrological effects of drought, but drought mitigation is an emerging science and evaluating its effectiveness is difficult. We examined ecohydrological responses of drought mitigation actions aimed at conserving populations of the Columbia spotted frog (Rana luteiventris) in a semi-arid valley in Nevada, USA. Abundance of this rare frog had declined precipitously after multiple droughts. Mitigation included excavating ponds to increase available surface water and installing earthen dams to raise water tables. We assessed responses of riparian vegetation to mitigation using a 30-year time series of satellite-derived Normalized Difference Vegetation Index (NDVI) and gridded weather data. We then analyzed a 23-year mark-recapture dataset to evaluate the effects of drought mitigation and NDVI on the probability of frog survival and rates of recruitment. After accounting for interannual precipitation variability, we found that NDVI increased significantly from before to after drought mitigation, suggesting that mitigation influenced the hydrology and vegetation of the meadows. Frog survival increased with NDVI, but mitigation had a stronger effect than NDVI suggesting that excavated mitigation ponds were particularly important for frog survival during drought. In contrast, frog recruitment was associated with NDVI more than mitigation, but only in meadows where NDVI was dependent on precipitation. At meadows with available groundwater, recruitment was associated with mitigation ponds. These findings suggest that mitigation ponds are critical for juvenile frogs to recruit into the adult population, but recruitment can also be increased by raising water tables in meadows lacking groundwater sources. Lagged recruitment (i.e., effects on larvae and juveniles) was negatively associated with NDVI. This study illustrates the ecohydrological complexity of drought mitigation and demonstrates novel ways to assess the effectiveness of drought mitigation using time series of readily available satellite imagery and organismal data.
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Affiliation(s)
- David S Pilliod
- U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center, 970 Lusk Street, Boise, ID 83706, USA.
| | - Mark B Hausner
- Division of Hydrologic Sciences, Desert Research Institute, 2215 Raggio Pkwy, Reno, NV 89512, USA
| | - Rick D Scherer
- Conservation Science Partners, 5 Old Town Square, Suite 205, Fort Collins, CO 80524, USA
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12
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Mathwin R, Wassens S, Young J, Ye Q, Bradshaw CJA. Manipulating water for amphibian conservation. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2021; 35:24-34. [PMID: 32189374 DOI: 10.1111/cobi.13501] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 02/04/2020] [Accepted: 03/06/2020] [Indexed: 06/10/2023]
Abstract
Amphibian populations globally are in decline. One great threat is the abstraction of water resources that alter surface-water hydrology. Conservation actions aimed at restoring or manipulating surface water are employed as a management tool, but empirical evidence on the effectiveness of these approaches is scarce. In this systematic review, we summarized the global experience of manipulating water for amphibian conservation. We explored examples of manipulating water to conserve amphibian species and communities. Approaches varied in their frequency of implementation and in their success. Extending hydroperiod to match larval requirements showed encouraging results, as did off-season drying to control predators. Spraying water into the environment showed several potential applications, but successes were limited. Despite some promising interventions, we identified few (n = 17) empirically supported examples of successful water manipulation to benefit amphibians. It is unclear whether this stems from publication bias or if it is an artifact of language selection. However, manipulating water shows some potential in amphibian conservation, particularly at sites with a proximal water source and in regions where aridity is increasing due to climate change. Regardless of the scale of the intervention or its perceived probability of success, high-quality reporting of empirical results will further understanding of how water manipulations can benefit threatened amphibian populations.
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Affiliation(s)
- Rupert Mathwin
- Global Ecology, College of Science and Engineering, Flinders University, P.O. Box 2100, Adelaide, South Australia, 5001, Australia
| | - Skye Wassens
- School of Environmental Sciences, Charles Sturt University, P.O. Box 789, Albury, New South Wales, 2640, Australia
| | - Jeanne Young
- College of Science and Engineering, Flinders University, P.O. Box 2100, Adelaide, South Australia, 5001, Australia
| | - Qifeng Ye
- College of Science and Engineering, Flinders University, P.O. Box 2100, Adelaide, South Australia, 5001, Australia
- Inland Waters, South Australian Research and Development Institute, 2 Hamra Ave, West Beach, South Australia, 5024, Australia
| | - Corey J A Bradshaw
- Global Ecology, College of Science and Engineering, Flinders University, P.O. Box 2100, Adelaide, South Australia, 5001, Australia
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13
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Hinderer RK, Litt AR, McCaffery M. Habitat selection by a threatened desert amphibian. Ecol Evol 2021; 11:536-546. [PMID: 33437449 PMCID: PMC7790612 DOI: 10.1002/ece3.7074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 09/22/2020] [Accepted: 10/23/2020] [Indexed: 11/11/2022] Open
Abstract
Habitat degradation and fragmentation are major drivers of amphibian declines. The loss of environmental features that allow for movement between water sources may be particularly detrimental for amphibians in arid environments. Climate changes will increase the importance of microhabitats to amphibians. Enhancing areas to facilitate movement may be a necessary conservation strategy for many animal species that depend on wetlands, including federally threatened Chiricahua leopard frogs (Lithobates chiricahuensis). Habitat preferences of this frog species are not well understood. We sought to better understand fine-scale habitat selection, to inform conservation of Chiricahua leopard frogs. We conducted our study on the Ladder Ranch, a privately owned working bison ranch in New Mexico, USA that supports a large proportion of the remaining Chiricahua leopard frogs in the state. We attached radio transmitters to 44 frogs during summer 2014. We located each frog daily for up to 8 weeks (median = 30 days). We assessed fine-scale habitat selection by comparing characteristics at each frog location and a random location 5 m away using conditional logistic regression. Frogs preferred features that likely reduce desiccation, even after accounting for the presence of water. Frogs selected areas with more low-lying cover, especially aquatic vegetation and woody debris, a tree overstory, and a mud substrate. We recommend managing potential movement corridors for Chiricahua leopard frogs by ensuring the presence of muddy creek bottoms, woody debris, riparian overstory, low-lying ground cover, and pools. Microclimates created by these features seem especially valuable given warming temperatures and modified precipitation regimes, resulting in decreased surface water, soil moisture, and vegetation cover. Retaining or creating preferred habitat features and microclimates in areas between water sources may increase connectivity among isolated populations of Chiricahua leopard frogs and could improve persistence and recovery of other water-obligate species in arid landscapes.
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Affiliation(s)
| | - Andrea R. Litt
- Department of EcologyMontana State UniversityBozemanMTUSA
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14
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Burraco P, Orizaola G, Monaghan P, Metcalfe NB. Climate change and ageing in ectotherms. GLOBAL CHANGE BIOLOGY 2020; 26:5371-5381. [PMID: 32835446 DOI: 10.1111/gcb.15305] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/31/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
Human activity is changing climatic conditions at an unprecedented rate. The impact of these changes may be especially acute on ectotherms since they have limited capacities to use metabolic heat to maintain their body temperature. An increase in temperature is likely to increase the growth rate of ectothermic animals, and may also induce thermal stress via increased exposure to heat waves. Fast growth and thermal stress are metabolically demanding, and both factors can increase oxidative damage to essential biomolecules, accelerating the rate of ageing. Here, we explore the potential impact of global warming on ectotherm ageing through its effects on reactive oxygen species production, oxidative damage, and telomere shortening, at the individual and intergenerational levels. Most evidence derives primarily from vertebrates, although the concepts are broadly applicable to invertebrates. We also discuss candidate mechanisms that could buffer ectotherms from the potentially negative consequences of climate change on ageing. Finally, we suggest some potential applications of the study of ageing mechanisms for the implementation of conservation actions. We find a clear need for more ecological, biogeographical, and evolutionary studies on the impact of global climate change on patterns of ageing rates in wild populations of ectotherms facing warming conditions. Understanding the impact of warming on animal life histories, and on ageing in particular, needs to be incorporated into the design of measures to preserve biodiversity to improve their effectiveness.
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Affiliation(s)
- Pablo Burraco
- Institute of Biodiversity, Animal Health, and Comparative Medicine, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, UK
- Animal Ecology, Department of Ecology and Genetics, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
| | - Germán Orizaola
- IMIB-Biodiversity Research Institute (Univ. Oviedo-CSIC-Principado Asturias), Mieres-Asturias, Spain
- Zoology Unit, Department of Organisms and Systems Biology, University of Oviedo, Oviedo-Asturias, Spain
| | - Pat Monaghan
- Institute of Biodiversity, Animal Health, and Comparative Medicine, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, UK
| | - Neil B Metcalfe
- Institute of Biodiversity, Animal Health, and Comparative Medicine, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, UK
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15
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Brooks GC, Gorman TA, Jiao Y, Haas CA. Reconciling larval and adult sampling methods to model growth across life-stages. PLoS One 2020; 15:e0237737. [PMID: 32822355 PMCID: PMC7442236 DOI: 10.1371/journal.pone.0237737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 07/31/2020] [Indexed: 11/29/2022] Open
Abstract
Individual growth rates are intrinsically related to survival and lifetime reproductive success and hence, are key determinants of population growth. Efforts to quantify age-size relationships are hampered by difficulties in aging individuals in wild populations. In addition, species with complex life-histories often show distinct shifts in growth that cannot be readily accommodated by traditional modelling techniques. Amphibians are often characterized by rapid larval growth, cessation of growth prior to metamorphosis, and resumption of growth in the adult stage. Compounding issues of non-linear growth, amphibian monitoring programs typically sample larval and adult populations using dissimilar methods. Here we present the first multistage growth model that combines disparate data collected across life-history stages. We model the growth of the endangered Reticulated Flatwoods Salamander, Ambystoma bishopi, in a Bayesian framework, that accounts for unknown ages, individual heterogeneity, and reconciles dip-net and drift fence sampling designs. Flatwoods salamanders achieve 60% of growth in the first 3 months of life but can survive for up to 13 years as a terrestrial adult. We find evidence for marked variability in growth rate, the timing and age at metamorphosis, and maximum size, within populations. Average size of metamorphs in a given year appeared strongly dependent on hydroperiod, and differed by >10mm across years with successful recruitment. In contrast, variation in the sizes of emerging metamorphs appeared relatively constant across years. An understanding of growth will contribute to the development of population viability analyses for flatwoods salamanders, will guide management actions, and will ultimately aid the recovery of the species. Our model formulation has broad applicability to amphibians, and likely any stage-structured organism in which homogenous data cannot be collected across life-stages. The tendency to ignore stage-structure or omit non-conforming data in growth analyses can no longer be afforded given the high stakes of management decisions, particularly for endangered or at-risk populations.
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Affiliation(s)
- George C. Brooks
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, Virginia, United States of America
- * E-mail:
| | - Thomas A. Gorman
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Yan Jiao
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Carola A. Haas
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, Virginia, United States of America
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Préau C, Grandjean F, Sellier Y, Gailledrat M, Bertrand R, Isselin-Nondedeu F. Habitat patches for newts in the face of climate change: local scale assessment combining niche modelling and graph theory. Sci Rep 2020; 10:3570. [PMID: 32107433 PMCID: PMC7046615 DOI: 10.1038/s41598-020-60479-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 02/07/2020] [Indexed: 11/08/2022] Open
Abstract
Triturus cristatus and Triturus marmoratus are two protected and declining newts occurring in the administrative department of Vienne, in France. They have limited dispersal abilities and rely on the connectivity between habitats and their suitability. In a warming climate, the locations of suitable habitats are expected to change, as is the connectivity. Here, we wondered how climate change might affect shifts in habitat suitability and connectivity of habitat patches, as connectivity is a key element enabling species to realize a potential range shift. We used ecological niche modelling (ENM), combining large-scale climate suitability with local scale, high-resolution habitat features, to identify suitable areas for the two species, under low and high warming scenarios (RCP 2.6 and RCP 8.5). We associated it with connectivity assessment through graph theory. The variable 'small ponds' contributed most to land cover-only ENMs for both species. Projections with climate change scenarios revealed a potential impact of warming on suitable habitat patches for newts, especially for T. cristatus. We observed a decrease in connectivity following a decrease in patch suitability. Our results highlight the important areas for newt habitat connectivity within the study area, and define those potentially threatened by climate warming. We provide information for prioritizing sites for acquisition, protection or restoration, and to advise landscape policies. Our framework is a useful and easily reproducible way to combine global climate requirements of the species with detailed information on species habitats and occurrence when available.
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Affiliation(s)
- Clémentine Préau
- Réserve Naturelle Nationale du Pinail, GEREPI, Moulin de Chitré, 86210, Vouneuil-sur-Vienne, France.
- Laboratoire Ecologie et Biologie des Interactions - UMR CNRS 7267 Equipe Ecologie Evolution Symbiose, Bâtiment B8-B35, 6, rue Michel Brunet, TSA 51106, 86073, Poitiers, Cedex, France.
- Département Aménagement et Environnement Ecole Polytechnique de l'Université de Tours, CNRS; UMR CNRS 7324 CITERES, 33-35 Allée Ferdinand de Lesseps, 37200, Tours, France.
| | - Frédéric Grandjean
- Laboratoire Ecologie et Biologie des Interactions - UMR CNRS 7267 Equipe Ecologie Evolution Symbiose, Bâtiment B8-B35, 6, rue Michel Brunet, TSA 51106, 86073, Poitiers, Cedex, France
| | - Yann Sellier
- Réserve Naturelle Nationale du Pinail, GEREPI, Moulin de Chitré, 86210, Vouneuil-sur-Vienne, France
| | | | - Romain Bertrand
- Laboratoire Évolution & Diversité Biologique (EDB UMR 5174), IRD, CNRS, UPS, Université de Toulouse Midi-Pyrénées, Toulouse, France
| | - Francis Isselin-Nondedeu
- Département Aménagement et Environnement Ecole Polytechnique de l'Université de Tours, CNRS; UMR CNRS 7324 CITERES, 33-35 Allée Ferdinand de Lesseps, 37200, Tours, France
- Institut Méditerranéen de Biodiversité et Ecologie, UMR CNRS-IRD, Avignon Université, Aix-Marseille Université, IUT d'Avignon, 337 chemin des Mainajariés, Site Agroparc PB 61207, 84911, Avignon, cedex 09, France
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An artificial habitat increases the reproductive fitness of a range-shifting species within a newly colonized ecosystem. Sci Rep 2020; 10:554. [PMID: 31953478 PMCID: PMC6969167 DOI: 10.1038/s41598-019-56228-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 12/04/2019] [Indexed: 11/18/2022] Open
Abstract
When a range-shifting species colonizes an ecosystem it has not previously inhabited, it may experience suboptimal conditions that challenge its continued persistence and expansion. Some impacts may be partially mitigated by artificial habitat analogues: artificial habitats that more closely resemble a species’ historic ecosystem than the surrounding habitat. If conditions provided by such habitats increase reproductive success, they could be vital to the expansion and persistence of range-shifting species. We investigated the reproduction of the mangrove tree crab Aratus pisonii in its historic mangrove habitat, the suboptimal colonized salt marsh ecosystem, and on docks within the marsh, an artificial mangrove analogue. Crabs were assessed for offspring production and quality, as well as measures of maternal investment and egg quality. Aratus pisonii found on docks produced more eggs, more eggs per unit energy investment, and higher quality larvae than conspecifics in the surrounding salt marsh. Yet, crabs in the mangrove produced the highest quality larvae. Egg lipids suggest these different reproductive outcomes result from disparities in the quality of diet-driven maternal investments, particularly key fatty acids. This study suggests habitat analogues may increase the reproductive fitness of range-shifting species allowing more rapid expansion into, and better persistence in, colonized ecosystems.
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18
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Bradley PW, Brawner MD, Raffel TR, Rohr JR, Olson DH, Blaustein AR. Shifts in temperature influence how Batrachochytrium dendrobatidis infects amphibian larvae. PLoS One 2019; 14:e0222237. [PMID: 31536533 PMCID: PMC6752834 DOI: 10.1371/journal.pone.0222237] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 08/23/2019] [Indexed: 11/18/2022] Open
Abstract
Many climate change models predict increases in frequency and magnitude of temperature fluctuations that might impact how ectotherms are affected by disease. Shifts in temperature might especially affect amphibians, a group with populations that have been challenged by several pathogens. Because amphibian hosts invest more in immunity at warmer than cooler temperatures and parasites might acclimate to temperature shifts faster than hosts (creating lags in optimal host immunity), researchers have hypothesized that a temperature shift from cold-to-warm might result in increased amphibian sensitivity to pathogens, whereas a shift from warm-to-cold might result in decreased sensitivity. Support for components of this climate-variability based hypothesis have been provided by prior studies of the fungus Batrachochytrium dendrobatidis (Bd) that causes the disease chytridiomycosis in amphibians. We experimentally tested whether temperature shifts before exposure to Batrachochytrium dendrobatidis (Bd) alters susceptibility to the disease chytridiomycosis in the larval stage of two amphibian species–western toads (Anaxyrus boreas) and northern red legged frogs (Rana aurora). Both host species harbored elevated Bd infection intensities under constant cold (15° C) temperature in comparison to constant warm (20° C) temperature. Additionally, both species experienced an increase in Bd infection abundance after shifted from 15° C to 20° C, compared to a constant 20° C but they experienced a decrease in Bd after shifted from 20° C to 15° C, compared to a constant 15° C. These results are in contrast to prior studies of adult amphibians highlighting the potential for species and stage differences in the temperature-dependence of chytridiomycosis.
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Affiliation(s)
- Paul W. Bradley
- Environmental Sciences Graduate Program, Oregon State University, Corvallis, Oregon, United States of America
- * E-mail:
| | - Michael D. Brawner
- Department of Integrative Biology, Oregon State University, Corvallis, OR, United States of America
| | - Thomas R. Raffel
- Department of Biology, Oakland University, Rochester, MI, United States of America
| | - Jason R. Rohr
- Department of Integrative Biology, University of South Florida, Tampa, FL, United States of America
| | - Deanna H. Olson
- USDA Forest Service, Pacific Northwest Research Station, Corvallis, OR, United States of America
| | - Andrew R. Blaustein
- Department of Integrative Biology, Oregon State University, Corvallis, OR, United States of America
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Ledesma JLJ, Montori A, Altava‐Ortiz V, Barrera‐Escoda A, Cunillera J, Àvila A. Future hydrological constraints of the Montseny brook newt ( Calotriton arnoldi) under changing climate and vegetation cover. Ecol Evol 2019; 9:9736-9747. [PMID: 31534689 PMCID: PMC6745664 DOI: 10.1002/ece3.5506] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/03/2019] [Accepted: 07/09/2019] [Indexed: 11/30/2022] Open
Abstract
The Montseny brook newt (Calotriton arnoldi) is a critically endangered amphibian species which inhabits a small 20 km2 holm oak and beech forest area in NE Spain. Calotriton arnoldi strictly lives in running waters and might be highly vulnerable to hydrological perturbations expected to occur under climate and vegetation cover changes. Knowledge about the potential response of the species habitat to environmental changes can help assessing the actions needed for its conservation. Based on knowledge of the species and supported by observations, we proposed daily low and high streamflow event thresholds for the viability of C. arnoldi. We used the rainfall-runoff model PERSiST to simulate changes in the frequency and duration of these events, which were predicted under two climate and four vegetation cover scenarios for near-future (2031-2050) and far-future (2081-2100) periods in a reference catchment. All future scenarios projected a significant decrease in annual streamflow (from 21% to as much as 67%) with respect to the reference period. The frequency and length of low streamflow events will dramatically increase. In contrast, the risk of catastrophic drift linked to high streamflow events was predicted to decrease. The potential change in vegetation toward an expansion of holm oak forests will be more important than climate changes in determining threshold low flow conditions. We thus demonstrated that consideration of potential changes in vegetation and not only changes in climate variables is essential in simulating future streamflows. This study shows that future low streamflow conditions will pose a severe threat for the survival of C. arnoldi and may help taking management actions, including limiting the expansion of holm oak forest, for ameliorating the species habitat and help its conservation.
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Affiliation(s)
- José L. J. Ledesma
- Center for Advanced Studies of BlanesSpanish National Research CouncilBlanesSpain
- Department of Aquatic Sciences and AssessmentSwedish University of Agricultural SciencesUppsalaSweden
| | - Albert Montori
- GRENP (Grup de Recerca de l'Escola de la Natura de Parets del Vallès), Life‐Tritó del MontsenyDiputació de BarcelonaParets del VallèsSpain
| | - Vicent Altava‐Ortiz
- Department of Applied Research and ModellingMeteorological Service of CataloniaBarcelonaSpain
| | | | - Jordi Cunillera
- Department of ClimatologyMeteorological Service of CataloniaBarcelonaSpain
| | - Anna Àvila
- CREAFCampus de Bellaterra (UAB)Cerdanyola del VallèsSpain
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He X, Liang J, Zeng G, Yuan Y, Li X. The Effects of Interaction between Climate Change and Land-Use/Cover Change on Biodiversity-Related Ecosystem Services. GLOBAL CHALLENGES (HOBOKEN, NJ) 2019; 3:1800095. [PMID: 31565394 PMCID: PMC6733396 DOI: 10.1002/gch2.201800095] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/20/2019] [Indexed: 05/13/2023]
Abstract
Climate change and land-use/cover change (LUCC) are two major types of global environmental change. They are increasingly challenging the main objectives of ecosystem management, which are to provide ecosystem services sustainably to society and maintain biodiversity. However, a comprehensive understanding of how climate-land-use change affects these primary goals of ecosystem management is still lacking. Here, a global literature review on the impacts of climate change and LUCC on ecosystem services related to biodiversity is presented. In this review, possible ecological responses at species, community, and ecosystem levels, and the effects of interaction mechanisms between climate change and LUCC on biodiversity-related ecosystem services are identified. The results show possible effects on species facing climate change challenges through affecting distribution/range shifts, interspecific relations, richness, and abundance, and the impacts on biodiversity through increasing extinction rates, nutrient deposition, and habitat fragmentation under LUCC. Climate change may hinder the ability of species to deal with LUCC, and in turn LUCC could reduce resilience to climate change. Understanding of these interactions is necessary to address the increasing pressure on sustainable provisioning of ecosystem services under different climate and land-use scenarios in the future.
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Affiliation(s)
- Xinyue He
- College of Environmental Science and EngineeringHunan UniversityChangsha410082P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)Ministry of EducationChangsha410082P. R. China
| | - Jie Liang
- College of Environmental Science and EngineeringHunan UniversityChangsha410082P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)Ministry of EducationChangsha410082P. R. China
| | - Guangming Zeng
- College of Environmental Science and EngineeringHunan UniversityChangsha410082P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)Ministry of EducationChangsha410082P. R. China
| | - Yujie Yuan
- Key Laboratory of Ecological Impacts of Hydraulic‐Projects and Restoration of Aquatic Ecosystem of Ministry of Water ResourcesInstitute of HydroecologyMinistry of Water Resources and Chinese Academy of SciencesWuhan430079P. R. China
| | - Xiaodong Li
- College of Environmental Science and EngineeringHunan UniversityChangsha410082P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)Ministry of EducationChangsha410082P. R. China
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21
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Hettyey A, Ujszegi J, Herczeg D, Holly D, Vörös J, Schmidt BR, Bosch J. Mitigating Disease Impacts in Amphibian Populations: Capitalizing on the Thermal Optimum Mismatch Between a Pathogen and Its Host. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00254] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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22
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Walls SC, Barichivich WJ, Chandler J, Meade AM, Milinichik M, O'Donnell KM, Owens ME, Peacock T, Reinman J, Watling RC, Wetsch OE. Seeking shelter from the storm: Conservation and management of imperiled species in a changing climate. Ecol Evol 2019; 9:7122-7133. [PMID: 31380037 PMCID: PMC6662284 DOI: 10.1002/ece3.5277] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/26/2019] [Accepted: 05/04/2019] [Indexed: 11/11/2022] Open
Abstract
Climate change is anticipated to exacerbate the extinction risk of species whose persistence is already compromised by habitat loss, invasive species, disease, or other stressors. In coastal areas of the southeastern United States (USA), many imperiled vertebrates are vulnerable to hurricanes, which climate models predict to become more severe in the 21st century. Despite this escalating threat, explicit adaptation strategies that address hurricane threats, in particular, and climate change more generally, are largely underrepresented in recovery planning and implementation. We provide a basis for stronger emphasis on strategic planning for imperiled species facing the increasing threat of catastrophic hurricanes. Our reasoning comes from observations of short-term environmental and biological impacts of Hurricane Michael, which impacted the Gulf Coast of the southeastern USA in October 2018. During this storm, St. Marks National Wildlife Refuge, located along the northern Gulf of Mexico's coast in the panhandle region of Florida, received storm surge that was 3.0-3.6 m (NAVD88) above sea level. Storm surge pushed sea water into some ephemeral freshwater ponds used for breeding by the federally threatened frosted flatwoods salamander (Ambystoma cingulatum). After the storm, specific conductance across all ponds measured varied from 80 to 23,100 µS/cm, compared to 75 to 445 µS/cm in spring 2018. For 17 overwashed wetlands that were measured in both spring and fall 2018, posthurricane conductance observations were, on average, more than 90 times higher than in the previous spring, setting the stage for varying population responses across this coastal landscape. Importantly, we found live individual flatwoods salamanders at both overwashed and non-overwashed sites, although we cannot yet assess the demographic consequences of this storm. We outline actions that could be incorporated into climate adaptation strategies and recovery planning for imperiled species, like A. cingulatum, that are associated with freshwater coastal wetlands in hurricane-prone regions.
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Affiliation(s)
- Susan C Walls
- Wetland and Aquatic Research Center U.S. Geological Survey Gainesville Florida
| | | | - Jonathan Chandler
- St. Marks National Wildlife Refuge U.S. Fish and Wildlife Service St. Marks Florida
| | - Ashley M Meade
- St. Marks National Wildlife Refuge U.S. Fish and Wildlife Service St. Marks Florida
| | - Marysa Milinichik
- St. Marks National Wildlife Refuge U.S. Fish and Wildlife Service St. Marks Florida
| | | | - Megan E Owens
- Wetland and Aquatic Research Center U.S. Geological Survey Gainesville Florida
- Environmental Stewards Program Conservation Legacy Durango Colorado
| | - Terry Peacock
- St. Marks National Wildlife Refuge U.S. Fish and Wildlife Service St. Marks Florida
| | - Joseph Reinman
- St. Marks National Wildlife Refuge U.S. Fish and Wildlife Service St. Marks Florida
| | - Rebecca C Watling
- Wetland and Aquatic Research Center U.S. Geological Survey Gainesville Florida
- Environmental Stewards Program Conservation Legacy Durango Colorado
| | - Olivia E Wetsch
- St. Marks National Wildlife Refuge U.S. Fish and Wildlife Service St. Marks Florida
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23
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van der Hoek Y, Tuyisingize D, Eckardt W, Garriga N, Derhé MA. Spatial variation in anuran richness, diversity, and abundance across montane wetland habitat in Volcanoes National Park, Rwanda. Ecol Evol 2019; 9:4220-4230. [PMID: 31016000 PMCID: PMC6468056 DOI: 10.1002/ece3.5054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 12/14/2018] [Accepted: 02/22/2019] [Indexed: 11/11/2022] Open
Abstract
The spatial distribution of species has long sparked interest among ecologists and biogeographers, increasingly so in studies of species responses to climate change. However, field studies on spatial patterns of distribution, useful to inform conservation actions at local scales, are still lacking for many regions, especially the tropics. We studied elevational trends and species-area relationships among anurans in wetland habitats within Volcanoes National Park (VNP) in Rwanda, part of the biodiverse Albertine Rift region. In VNP, wetlands are key sites for anuran reproduction, and anurans are likely threatened by wetland desiccation which has occurred for the last few decades. Between 2012 and 2017, we sampled anuran communities in ten VNP wetlands located along an elevational gradient of c. 600 m (from 2,546 to 3,188 m a.s.l.) and found at least eight species, including at least two Albertine Rift Endemics. We show that species richness, diversity, and abundance likely decline with a decrease in wetland size and with an increase in elevation, though additional sampling (e.g., at night) might be needed to derive definite conclusions. Larger wetlands at lower elevations contained most species and individuals, which indicates the potential threat of wetland size reduction (through desiccation) for anuran conservation. However, we also found that wetlands differed in species composition and that some species (e.g., Sclerophrys kisoloensis) were likely restricted in distribution to only a few of the smaller wetlands-suggesting that the conservation of each individual wetland should be prioritized, regardless of size. We propose that all wetlands in VNP require additional conservation measures, which should be based on knowledge gathered through long-term monitoring of anuran communities and research on drivers of wetland decline. Only such extended research will allow us to understand the response of anurans in VNP to threats such as climate change and wetland desiccation.
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Affiliation(s)
| | | | | | - Nuria Garriga
- Department of Evolutive Biology, Ecology, and Environmental SciencesUniversity of BarcelonaBarcelonaSpain
| | - Mia A. Derhé
- The Dian Fossey Gorilla Fund InternationalMusanzeRwanda
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Cannizzo ZJ, Griffen BD. An artificial habitat facilitates a climate-mediated range expansion into a suboptimal novel ecosystem. PLoS One 2019; 14:e0211638. [PMID: 30785918 PMCID: PMC6382103 DOI: 10.1371/journal.pone.0211638] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 01/17/2019] [Indexed: 11/27/2022] Open
Abstract
As the geographic ranges of tropical species and ecosystems continue to shift poleward with climate change, it is critical to prediction and management to identify factors that facilitate these expansions. This is especially true for range shifts that involve the decoupling of a shifting species from its historic ecosystem and the colonization of an ecosystem that it has not previously inhabited (i.e. is novel to the shifting species). In cases where the colonized ecosystem is suboptimal for the shifting species, stepping stone refuges may play a critical role in facilitating further expansion. Here we document the facilitation of the northward range expansion of the mangrove tree crab (Aratus pisonii) into the previously uninhabited salt marsh ecosystem by artificial boat docks. While the cold tolerance of crabs did not differ between habitats, they were found on docks 36 km and 22 km further north than elsewhere in the salt marsh after the winters of 2016-‘17 and ‘17-’18, respectively. This extended range-edge appears to be a result of docks within the salt marsh acting as a stepping stone refuge by providing this historically tropical species with a relatively warm thermal refuge during the winter that mitigates seasonal population die-backs exhibited elsewhere at the range-edge. Further, population abundances were higher on docks at the range-edge than in the surrounding salt marsh. While artificial habitats often favor the expansion of non-indigenous species, our results demonstrate the facilitation of a native species’ range shift into a suboptimal ecosystem which it has not previously inhabited. The potential for analogous and refuge habitats, artificial or otherwise, to increase the rate and success of range shifts could be critical to the fate of many current and future range shifting species.
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Affiliation(s)
- Zachary J. Cannizzo
- Marine Science Program, School of the Earth, Ocean, and Environment, University of South Carolina, Columbia, SC
- * E-mail:
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25
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Prober SM, Doerr VAJ, Broadhurst LM, Williams KJ, Dickson F. Shifting the conservation paradigm: a synthesis of options for renovating nature under climate change. ECOL MONOGR 2019. [DOI: 10.1002/ecm.1333] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Suzanne M. Prober
- CSIRO Land and Water; Private Bag 5 Wembley Western Australia 6913 Australia
| | - Veronica A. J. Doerr
- CSIRO Land and Water; GPO Box 1700 Canberra Australian Capital Territory 2601 Australia
| | - Linda M. Broadhurst
- Centre for Australian National Biodiversity Research; CSIRO National Research Collections Australia; GPO Box 1700 Canberra Australian Capital Territory 2601 Australia
| | - Kristen J. Williams
- CSIRO Land and Water; GPO Box 1700 Canberra Australian Capital Territory 2601 Australia
| | - Fiona Dickson
- Department of the Environment and Energy; GPO Box 787 Australian Capital Territory 2601 Australia
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26
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Reconnecting Amphibian Habitat through Small Pond Construction and Enhancement, South Okanagan River Valley, British Columbia, Canada. DIVERSITY 2018. [DOI: 10.3390/d10040108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The arid south Okanagan River Valley, British Columbia is a highly-modified landscape; where wetland and riparian habitat loss exceeds 85%, and 88% of remaining wetlands experience at least one harmful anthropogenic stressor. This multi-stressor landscape for amphibian species at risk led to a collaborative stakeholder approach for habitat restoration and species recovery. The main project goal was to increase the quantity and quality of lowland wetland habitat by reconnecting known amphibian-breeding sites with constructed and/or enhanced small ponds. Long-term amphibian monitoring data were used to determine strategic locations for wetland construction and/or enhancement. Habitat enhancement outcomes (Ntotal = 21 sites) since 2006 include 10 newly constructed ponds, enhancement of eight re-contoured ponds after historic infilling, and invasive predatory species removal at three sites. Project ponds were monitored annually (2007 to 2014) for calling frogs, the presence of eggs, and metamorphic emergence. Early signs of colonization and metamorphic success for Great Basin Spadefoot (Spea intermontana) (N = 13 sites) and Pacific treefrog (Pseudacris regilla) (N = 7 sites) populations have been observed, however no records of Blotched tiger salamanders (Ambystoma mavortium) colonization has been detected. Wetland habitat construction and enhancement have doubled the number of available fishless ponds to support breeding within the study area and engaged landowners through voluntary stewardship. Whether constructed or enhanced ponds have aided species recovery is unclear, though the colonization and successful metamorphosis of some species provides early supporting evidence that it will.
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27
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Affiliation(s)
- Thomas R. Raffel
- Department of Biological Sciences Oakland University Rochester MI USA
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28
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Cannizzo ZJ, Dixon SR, Griffen BD. An anthropogenic habitat within a suboptimal colonized ecosystem provides improved conditions for a range-shifting species. Ecol Evol 2018; 8:1521-1533. [PMID: 29435229 PMCID: PMC5792588 DOI: 10.1002/ece3.3739] [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: 07/17/2017] [Revised: 11/09/2017] [Accepted: 11/20/2017] [Indexed: 01/18/2023] Open
Abstract
Many species are shifting their ranges in response to the changing climate. In cases where such shifts lead to the colonization of a new ecosystem, it is critical to establish how the shifting species itself is impacted by novel environmental and biological interactions. Anthropogenic habitats that are analogous to the historic habitat of a shifting species may play a crucial role in the ability of that species to expand or persist in suboptimal colonized ecosystems. We tested if the anthropogenic habitat of docks, a likely mangrove analog, provides improved conditions for the range-shifting mangrove tree crab Aratus pisonii within the colonized suboptimal salt marsh ecosystem. To test if docks provided an improved habitat, we compared the impact of the salt marsh and dock habitats on ecological and life history traits that influence the ability of this species to persist and expand into the salt marsh and compared these back to baselines in the historic mangrove ecosystem. Specifically, we examined behavior, physiology, foraging, and the thermal conditions of A. pisonii in each habitat. We found that docks provide a more favorable thermal and foraging habitat than the surrounding salt marsh, while their ability to provide conditions which improved behavior and physiology was mixed. Our study shows that anthropogenic habitats can act as analogs to historic ecosystems and enhance the habitat quality for range-shifting species in colonized suboptimal ecosystems. If the patterns that we document are general across systems, then anthropogenic habitats may play an important facilitative role in the range shifts of species with continued climate change.
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Affiliation(s)
- Zachary J. Cannizzo
- Marine Science ProgramSchool of the Earth, Ocean, and EnvironmentUniversity of South CarolinaColumbiaSCUSA
| | - Sara R. Dixon
- Marine Science ProgramSchool of the Earth, Ocean, and EnvironmentUniversity of South CarolinaColumbiaSCUSA
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29
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Tanner-McAllister SL, Rhodes J, Hockings M. Managing for climate change on protected areas: An adaptive management decision making framework. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 204:510-518. [PMID: 28934674 DOI: 10.1016/j.jenvman.2017.09.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 09/10/2017] [Accepted: 09/12/2017] [Indexed: 05/22/2023]
Abstract
Current protected area management is becoming more challenging with advancing climate change and current park management techniques may not be adequate to adapt for effective management into the future. The framework presented here provides an adaptive management decision making process to assist protected area managers with adapting on-park management to climate change. The framework sets out a 4 step process. One, a good understanding of the park's context within climate change. Secondly, a thorough understanding of the park management systems including governance, planning and management systems. Thirdly, a series of management options set out as an accept/prevent change style structure, including a systematic assessment of those options. The adaptive approaches are defined as acceptance of anthropogenic climate change impact and attempt to adapt to a new climatic environment or prevention of change and attempt to maintain current systems under new climatic variations. Last, implementation and monitoring of long term trends in response to ecological responses to management interventions and assessing management effectiveness. The framework addresses many issues currently with park management in dealing with climate change including the considerable amount of research focussing on 'off-reserve' strategies, and threats and stress focused in situ park management.
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Affiliation(s)
- Sherri L Tanner-McAllister
- University of Queensland, School of Earth & Environmental Sciences, Brisbane St Lucia, QLD 4072, Australia; Queensland Parks and Wildlife Service, Department of National Parks, Sport and Recreation, PO Box 15187, City East, QLD 4002, Australia.
| | - Jonathan Rhodes
- University of Queensland, School of Earth & Environmental Sciences, Brisbane St Lucia, QLD 4072, Australia
| | - Marc Hockings
- University of Queensland, School of Earth & Environmental Sciences, Brisbane St Lucia, QLD 4072, Australia
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Bonebrake TC, Brown CJ, Bell JD, Blanchard JL, Chauvenet A, Champion C, Chen IC, Clark TD, Colwell RK, Danielsen F, Dell AI, Donelson JM, Evengård B, Ferrier S, Frusher S, Garcia RA, Griffis RB, Hobday AJ, Jarzyna MA, Lee E, Lenoir J, Linnetved H, Martin VY, McCormack PC, McDonald J, McDonald-Madden E, Mitchell N, Mustonen T, Pandolfi JM, Pettorelli N, Possingham H, Pulsifer P, Reynolds M, Scheffers BR, Sorte CJB, Strugnell JM, Tuanmu MN, Twiname S, Vergés A, Villanueva C, Wapstra E, Wernberg T, Pecl GT. Managing consequences of climate-driven species redistribution requires integration of ecology, conservation and social science. Biol Rev Camb Philos Soc 2017; 93:284-305. [PMID: 28568902 DOI: 10.1111/brv.12344] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 05/03/2017] [Accepted: 05/05/2017] [Indexed: 12/23/2022]
Abstract
Climate change is driving a pervasive global redistribution of the planet's species. Species redistribution poses new questions for the study of ecosystems, conservation science and human societies that require a coordinated and integrated approach. Here we review recent progress, key gaps and strategic directions in this nascent research area, emphasising emerging themes in species redistribution biology, the importance of understanding underlying drivers and the need to anticipate novel outcomes of changes in species ranges. We highlight that species redistribution has manifest implications across multiple temporal and spatial scales and from genes to ecosystems. Understanding range shifts from ecological, physiological, genetic and biogeographical perspectives is essential for informing changing paradigms in conservation science and for designing conservation strategies that incorporate changing population connectivity and advance adaptation to climate change. Species redistributions present challenges for human well-being, environmental management and sustainable development. By synthesising recent approaches, theories and tools, our review establishes an interdisciplinary foundation for the development of future research on species redistribution. Specifically, we demonstrate how ecological, conservation and social research on species redistribution can best be achieved by working across disciplinary boundaries to develop and implement solutions to climate change challenges. Future studies should therefore integrate existing and complementary scientific frameworks while incorporating social science and human-centred approaches. Finally, we emphasise that the best science will not be useful unless more scientists engage with managers, policy makers and the public to develop responsible and socially acceptable options for the global challenges arising from species redistributions.
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Affiliation(s)
- Timothy C Bonebrake
- School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, 999077, China
| | | | - Johann D Bell
- Australian National Centre for Ocean Resources and Security, University of Wollongong, Wollongong, NSW 2522, Australia.,Conservation International, Arlington, VA, 22202, U.S.A
| | - Julia L Blanchard
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia.,Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Alienor Chauvenet
- Centre for Biodiversity and Conservation Science, University of Queensland, St Lucia, 4072, Australia.,ARC Centre of Excellence for Environmental Decisions, School of Biological Sciences, The University of Queensland, Brisbane, 4072, Australia
| | - Curtis Champion
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia
| | - I-Ching Chen
- Department of Life Sciences, National Cheng Kung University, Tainan, 701, Republic of China
| | - Timothy D Clark
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia.,CSIRO Agriculture and Food, Hobart, 7000, Australia
| | - Robert K Colwell
- Center for Macroecology, Evolution and Climate, University of Copenhagen, Natural History Museum of Denmark, 2100, Copenhagen, Denmark.,Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, 06269, U.S.A.,University of Colorado Museum of Natural History, Boulder, CO, 80309, U.S.A.,Departmento de Ecologia, Universidade Federal de Goiás, CP 131, 74.001-970, Goiânia, Brazil
| | - Finn Danielsen
- Nordic Foundation for Development and Ecology (NORDECO), Copenhagen, DK-1159, Denmark
| | - Anthony I Dell
- National Great Rivers Research and Education Center (NGRREC), East Alton, IL, 62024, U.S.A.,Department of Biology, Washington University in St. Louis, St. Louis, MO, 631303, USA
| | - Jennifer M Donelson
- School of Life Sciences, University of Technology, Sydney, 2007, Australia.,ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, 4811, Australia
| | - Birgitta Evengård
- Division of Infectious Diseases, Department of Clinical Microbiology, Umea University, 90187, Umea, Sweden
| | | | - Stewart Frusher
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia.,Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Raquel A Garcia
- Department of Statistical Sciences, Centre for Statistics in Ecology, the Environment and Conservation, University of Cape Town, Rondebosch, 7701, South Africa.,Faculty of Science, Department of Botany and Zoology, Centre for Invasion Biology, Stellenbosch University, Matieland, 7602, South Africa
| | - Roger B Griffis
- NOAA National Marine Fisheries Service, Office of Science and Technology, Silver Spring, MD, 20910, U.S.A
| | - Alistair J Hobday
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7001, Australia.,CSIRO, Oceans and Atmosphere, Hobart, 7000, Australia
| | - Marta A Jarzyna
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06511, U.S.A
| | - Emma Lee
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Jonathan Lenoir
- UR « Ecologie et dynamique des systèmes anthropisés » (EDYSAN, FRE 3498 CNRS-UPJV), Université de Picardie Jules Verne, FR-80037, Amiens Cedex 1, France
| | - Hlif Linnetved
- Faculty of Science, Institute of Food and Resource Economics, University of Copenhagen, DK-1958, Frederiksberg C, Denmark
| | - Victoria Y Martin
- Cornell Lab of Ornithology, Cornell University, Ithaca, NY, 14850, U.S.A
| | | | - Jan McDonald
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7001, Australia.,Faculty of Law, University of Tasmania, Hobart, 7001, Australia
| | - Eve McDonald-Madden
- ARC Centre of Excellence for Environmental Decisions, School of Biological Sciences, The University of Queensland, Brisbane, 4072, Australia.,School of Geography, Planning and Environmental Management, The University of Queensland, Brisbane, 4072, Australia
| | - Nicola Mitchell
- School of Biological Sciences, University of Western Australia, Crawley, 6009, Australia
| | - Tero Mustonen
- Snowchange Cooperative, University of Eastern Finland, 80130, Joensuu, Finland
| | - John M Pandolfi
- School of Biological Sciences, ARC Centre of Excellence for Coral Reef Studies, The University of Queensland, Brisbane, 4072, Australia
| | | | - Hugh Possingham
- ARC Centre of Excellence for Environmental Decisions, School of Biological Sciences, The University of Queensland, Brisbane, 4072, Australia.,Grand Challenges in Ecosystems and the Environment, Silwood Park, Imperial College, London, SW7 2AZ, UK
| | - Peter Pulsifer
- National Snow and Ice Data Center, University of Colorado Boulder, Boulder, CO, 80309, U.S.A
| | - Mark Reynolds
- The Nature Conservancy, San Francisco, CA, 94105, U.S.A
| | - Brett R Scheffers
- Department of Wildlife Ecology and Conservation, University of Florida/IFAS, Gainesville, FL, 32611, U.S.A
| | - Cascade J B Sorte
- Department of Ecology and Evolutionary Biology, University of California, Irvine, CA, 92697, U.S.A
| | - Jan M Strugnell
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, 4811, Australia
| | - Mao-Ning Tuanmu
- Biodiversity Research Center, Academia Sinica, Taipei, 115, Republic of China
| | - Samantha Twiname
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia
| | - Adriana Vergés
- Centre for Marine Bio-Innovation and Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, 2052, Australia
| | - Cecilia Villanueva
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia
| | - Erik Wapstra
- School of Biological Sciences, University of Tasmania, Tasmania, 7001, Australia
| | - Thomas Wernberg
- School of Biological Sciences, University of Western Australia, Crawley, 6009, Australia.,UWA Oceans Institute, University of Western Australia, Perth, 6009, Australia
| | - Gretta T Pecl
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia.,Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7001, Australia
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Projecting the Global Distribution of the Emerging Amphibian Fungal Pathogen, Batrachochytrium dendrobatidis, Based on IPCC Climate Futures. PLoS One 2016; 11:e0160746. [PMID: 27513565 PMCID: PMC4981458 DOI: 10.1371/journal.pone.0160746] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 07/25/2016] [Indexed: 11/19/2022] Open
Abstract
Projected changes in climate conditions are emerging as significant risk factors to numerous species, affecting habitat conditions and community interactions. Projections suggest species range shifts in response to climate change modifying environmental suitability and is supported by observational evidence. Both pathogens and their hosts can shift ranges with climate change. We consider how climate change may influence the distribution of the emerging infectious amphibian chytrid fungus, Batrachochytrium dendrobatidis (Bd), a pathogen associated with worldwide amphibian population losses. Using an expanded global Bd database and a novel modeling approach, we examined a broad set of climate metrics to model the Bd-climate niche globally and regionally, then project how climate change may influence Bd distributions. Previous research showed that Bd distribution is dependent on climatic variables, in particular temperature. We trained a machine-learning model (random forest) with the most comprehensive global compilation of Bd sampling records (~5,000 site-level records, mid-2014 summary), including 13 climatic variables. We projected future Bd environmental suitability under IPCC scenarios. The learning model was trained with combined worldwide data (non-region specific) and also separately per region (region-specific). One goal of our study was to estimate of how Bd spatial risks may change under climate change based on the best available data. Our models supported differences in Bd-climate relationships among geographic regions. We projected that Bd ranges will shift into higher latitudes and altitudes due to increased environmental suitability in those regions under predicted climate change. Specifically, our model showed a broad expansion of areas environmentally suitable for establishment of Bd on amphibian hosts in the temperate zones of the Northern Hemisphere. Our projections are useful for the development of monitoring designs in these areas, especially for sensitive species and those vulnerable to multiple threats.
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Hamer AJ, Heard GW, Urlus J, Ricciardello J, Schmidt B, Quin D, Steele WK. Manipulating wetland hydroperiod to improve occupancy rates by an endangered amphibian: modelling management scenarios. J Appl Ecol 2016. [DOI: 10.1111/1365-2664.12729] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrew J. Hamer
- Australian Research Centre for Urban Ecology; Royal Botanic Gardens Victoria c/o School of BioSciences; University of Melbourne; Parkville Vic. 3010 Australia
| | - Geoffrey W. Heard
- Quantitative and Applied Ecology Group; School of BioSciences; University of Melbourne; Parkville Vic. 3010 Australia
| | - Jake Urlus
- Ecology Australia Pty. Ltd.; 88 B Station Street Fairfield Vic. 3078 Australia
| | | | - Bernadette Schmidt
- Ecology Australia Pty. Ltd.; 88 B Station Street Fairfield Vic. 3078 Australia
| | - Darren Quin
- Ecology Australia Pty. Ltd.; 88 B Station Street Fairfield Vic. 3078 Australia
| | - William K. Steele
- Integrated Planning Group; Melbourne Water; PO Box 4342 Melbourne Vic. 3001 Australia
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33
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Shuker JD, Simpkins CA, Hero J. Determining environmental limits of threatened species: the example of the wallum sedgefrog
Litoria olongburensis. Ecosphere 2016. [DOI: 10.1002/ecs2.1384] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Jon D. Shuker
- Environmental Futures Research InstituteSchool of EnvironmentGriffith University Southport Queensland 4222 Australia
| | - Clay A. Simpkins
- Environmental Futures Research InstituteSchool of EnvironmentGriffith University Southport Queensland 4222 Australia
| | - Jean‐Marc Hero
- Environmental Futures Research InstituteSchool of EnvironmentGriffith University Southport Queensland 4222 Australia
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34
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Lowe K, Castley JG, Hero JM. Calling phenology and detectability of a threatened amphibian (Litoria olongburensis) in ephemeral wetlands varies along a latitudinal cline: Implications for management. AUSTRAL ECOL 2016. [DOI: 10.1111/aec.12386] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Katrin Lowe
- Environmental Futures Research Institute, Griffith School of Environment; Griffith University; Queensland Australia
| | - J. Guy Castley
- Environmental Futures Research Institute, Griffith School of Environment; Griffith University; Queensland Australia
| | - Jean-Marc Hero
- Environmental Futures Research Institute, Griffith School of Environment; Griffith University; Queensland Australia
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35
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Barata IM, Uhlig VM, Silva GH, Ferreira GB. Downscaling the Gap: Protected Areas, Scientific Knowledge and the Conservation of Amphibian Species in Minas Gerais, Southeastern Brazil. SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2016. [DOI: 10.2994/sajh-d-16-00006.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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36
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Farallo VR, Miles DB. The Importance of Microhabitat: A Comparison of Two Microendemic Species ofPlethodonto the WidespreadP. cinereus. COPEIA 2016. [DOI: 10.1643/ce-14-219] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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37
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Cayuela H, Arsovski D, Bonnaire E, Duguet R, Joly P, Besnard A. The impact of severe drought on survival, fecundity, and population persistence in an endangered amphibian. Ecosphere 2016. [DOI: 10.1002/ecs2.1246] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- H. Cayuela
- UMR 5023 LEHNA; Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés, CNRS Université Lyon 1; 69100 Villeurbanne France
- CEFE UMR 5175; CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE; Laboratoire Biogéographie et Ecologie des Vertébrés 1919 Route de Mende; 34293 Montpellier Cedex 5 France
| | - D. Arsovski
- CEFE UMR 5175; CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE; Laboratoire Biogéographie et Ecologie des Vertébrés 1919 Route de Mende; 34293 Montpellier Cedex 5 France
| | - E. Bonnaire
- Office National des Forêts; Agence de Verdun; 55100 Verdun France
| | - R. Duguet
- Alcedo Faune Flore; Quartier Le Fez; 07110 Sanilhac France
| | - P. Joly
- UMR 5023 LEHNA; Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés, CNRS Université Lyon 1; 69100 Villeurbanne France
| | - A. Besnard
- CEFE UMR 5175; CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE; Laboratoire Biogéographie et Ecologie des Vertébrés 1919 Route de Mende; 34293 Montpellier Cedex 5 France
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38
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Tuberville TD, Andrews KM, Sperry JH, Grosse AM. Use of the NatureServe Climate Change Vulnerability Index as an Assessment Tool for Reptiles and Amphibians: Lessons Learned. ENVIRONMENTAL MANAGEMENT 2015; 56:822-834. [PMID: 25971738 DOI: 10.1007/s00267-015-0537-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 05/04/2015] [Indexed: 06/04/2023]
Abstract
Climate change threatens biodiversity globally, yet it can be challenging to predict which species may be most vulnerable. Given the scope of the problem, it is imperative to rapidly assess vulnerability and identify actions to decrease risk. Although a variety of tools have been developed to assess climate change vulnerability, few have been evaluated with regard to their suitability for certain taxonomic groups. Due to their ectothermic physiology, low vagility, and strong association with temporary wetlands, reptiles and amphibians may be particularly vulnerable relative to other groups. Here, we evaluate use of the NatureServe Climate Change Vulnerability Index (CCVI) to assess a large suite of herpetofauna from the Sand Hills Ecoregion of the southeastern United States. Although data were frequently lacking for certain variables (e.g., phenological response to climate change, genetic variation), sufficient data were available to evaluate all 117 species. Sensitivity analyses indicated that results were highly dependent on size of assessment area and climate scenario selection. In addition, several ecological traits common in, but relatively unique to, herpetofauna are likely to contribute to their vulnerability and need special consideration during the scoring process. Despite some limitations, the NatureServe CCVI was a useful tool for screening large numbers of reptile and amphibian species. We provide general recommendations as to how the CCVI tool's application to herpetofauna can be improved through more specific guidance to the user regarding how to incorporate unique physiological and behavioral traits into scoring existing sensitivity factors and through modification to the assessment tool itself.
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39
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Lee JR, Maggini R, Taylor MFJ, Fuller RA. Mapping the Drivers of Climate Change Vulnerability for Australia's Threatened Species. PLoS One 2015; 10:e0124766. [PMID: 26017785 PMCID: PMC4446039 DOI: 10.1371/journal.pone.0124766] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 03/12/2015] [Indexed: 11/17/2022] Open
Abstract
Effective conservation management for climate adaptation rests on understanding the factors driving species' vulnerability in a spatially explicit manner so as to direct on-ground action. However, there have been only few attempts to map the spatial distribution of the factors driving vulnerability to climate change. Here we conduct a species-level assessment of climate change vulnerability for a sample of Australia's threatened species and map the distribution of species affected by each factor driving climate change vulnerability across the continent. Almost half of the threatened species assessed were considered vulnerable to the impacts of climate change: amphibians being the most vulnerable group, followed by plants, reptiles, mammals and birds. Species with more restricted distributions were more likely to show high climate change vulnerability than widespread species. The main factors driving climate change vulnerability were low genetic variation, dependence on a particular disturbance regime and reliance on a particular moisture regime or habitat. The geographic distribution of the species impacted by each driver varies markedly across the continent, for example species impacted by low genetic variation are prevalent across the human-dominated south-east of the country, while reliance on particular moisture regimes is prevalent across northern Australia. Our results show that actions to address climate adaptation will need to be spatially appropriate, and that in some regions a complex suite of factors driving climate change vulnerability will need to be addressed. Taxonomic and geographic variation in the factors driving climate change vulnerability highlights an urgent need for a spatial prioritisation of climate adaptation actions for threatened species.
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Affiliation(s)
- Jasmine R Lee
- School of Biological Sciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Ramona Maggini
- School of Biological Sciences, The University of Queensland, Brisbane, Queensland, Australia; Australian Research Council Centre of Excellence for Environmental Decisions (CEED), The University of Queensland, Brisbane, Queensland, Australia
| | | | - Richard A Fuller
- School of Biological Sciences, The University of Queensland, Brisbane, Queensland, Australia
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40
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Pilliod DS, Scherer RD. Managing habitat to slow or reverse population declines of the Columbia spotted frog in the Northern Great Basin. J Wildl Manage 2015. [DOI: 10.1002/jwmg.868] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- David S. Pilliod
- U.S. Geological Survey; Forest and Rangeland Ecosystem Science Center; 970 Lusk Street Boise ID 83706 USA
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41
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Ringler M, Hödl W, Ringler E. Populations, pools, and peccaries: simulating the impact of ecosystem engineers on rainforest frogs. Behav Ecol 2015; 26:340-349. [PMID: 25825586 PMCID: PMC4374131 DOI: 10.1093/beheco/aru243] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 12/15/2014] [Accepted: 12/18/2014] [Indexed: 11/28/2022] Open
Abstract
Peccary wallows and footprints are important breeding pools for rainforest frogs. We performed a resource supplementation experiment with artificial pools, simulating peccary actions, in a population of the poison frog Allobates femoralis. The population almost doubled resulting from increased local reproduction, but not from immigration. These findings demonstrate the importance of “ecosystem engineers,” such as peccaries, for other species, the frogs. Our results also indicate that human engineering may help to protect amphibian populations. “Ecosystem engineering” describes habitat alteration by an organism that affects another organism; such nontrophic interactions between organisms are a current focus in ecological research. Our study quantifies the actual impact an ecosystem engineer can have on another species by using a previously identified model system—peccaries and rainforest frogs. In a 4-year experiment, we simulated the impact of peccaries on a population of Allobates femoralis (Dendrobatidae) by installing an array of artificial pools to mimic a forest patch modified by peccaries. The data were analyzed using a gradual before-after control-impact (gBACI) model. Following the supplementation, population size almost doubled as a result of increased autochthonous recruitment driven by a higher per-capita reproduction of males and a higher proportion of reproducing females. The effect was evenly distributed across the population. The differential response of males and females reflects the reproductive behavior of A. femoralis, as only the males use the aquatic sites for tadpole deposition. Our study shows that management and conservation must consider nontrophic relationships and that human “ecosystem engineering” can play a vital role in efforts against the “global amphibian decline.”
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Affiliation(s)
- Max Ringler
- Department of Integrative Zoology , University of Vienna , Althanstrasse 14 , A-1090 Vienna , Austria and
| | - Walter Hödl
- Department of Cognitive Biology , University of Vienna , Althanstrasse 14, A-1090 Vienna , Austria
| | - Eva Ringler
- Department of Integrative Zoology , University of Vienna , Althanstrasse 14 , A-1090 Vienna , Austria and ; Department of Cognitive Biology , University of Vienna , Althanstrasse 14, A-1090 Vienna , Austria
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42
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Quilodrán CS, Montoya-Burgos JI, Currat M. Modelling interspecific hybridization with genome exclusion to identify conservation actions: the case of native and invasive Pelophylax waterfrogs. Evol Appl 2015; 8:199-210. [PMID: 25685194 PMCID: PMC4319866 DOI: 10.1111/eva.12245] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 12/09/2015] [Indexed: 11/27/2022] Open
Abstract
Interspecific hybridization occurs in nature but can also be caused by human actions. It often leads to infertile or fertile hybrids that exclude one parental genome during gametogenesis, escaping genetic recombination and introgression. The threat that genome-exclusion hybridization might represent on parental species is poorly understood, especially when invasive species are involved. Here, we show how to assess the effects of genome-exclusion hybridization and how to elaborate conservation actions by simulating scenarios using a model of nonintrogressive hybridization. We examine the case of the frog Pelophylax ridibundus, introduced in Western Europe, which can hybridize with the native Pelophylax lessonae and the pre-existing hybrid Pelophylax esculentus, maintained by hybridogenesis. If translocated from Southern Europe, P. ridibundus produces new sterile hybrids and we show that it mainly threatens P. esculentus. Translocation from Central Europe leads to new fertile hybrids, threatening all native waterfrogs. Local extinction is demographically mediated via wasted reproductive potential or via demographic flow through generations towards P. ridibundus. We reveal that enlarging the habitat size of the native P. lessonae relative to that of the invader is a promising conservation strategy, avoiding the difficulties of fighting the invader. We finally stress that nonintrogressive hybridization is to be considered in conservation programmes.
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Affiliation(s)
- Claudio S Quilodrán
- Laboratory of vertebrate evolution, Department of Genetics and Evolution, University of Geneva Geneva, Switzerland ; Laboratory of anthropology, genetics and peopling history, Anthropology Unit, Department of Genetics and Evolution, University of Geneva Geneva, Switzerland
| | - Juan I Montoya-Burgos
- Laboratory of vertebrate evolution, Department of Genetics and Evolution, University of Geneva Geneva, Switzerland
| | - Mathias Currat
- Laboratory of anthropology, genetics and peopling history, Anthropology Unit, Department of Genetics and Evolution, University of Geneva Geneva, Switzerland
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43
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Predicted Changes in Climatic Niche and Climate Refugia of Conservation Priority Salamander Species in the Northeastern United States. FORESTS 2014. [DOI: 10.3390/f6010001] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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44
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Scheele BC, Hunter DA, Grogan LF, Berger L, Kolby JE, McFadden MS, Marantelli G, Skerratt LF, Driscoll DA. Interventions for reducing extinction risk in chytridiomycosis-threatened amphibians. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2014; 28:1195-1205. [PMID: 24975971 DOI: 10.1111/cobi.12322] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 02/21/2014] [Indexed: 06/03/2023]
Abstract
Wildlife diseases pose an increasing threat to biodiversity and are a major management challenge. A striking example of this threat is the emergence of chytridiomycosis. Despite diagnosis of chytridiomycosis as an important driver of global amphibian declines 15 years ago, researchers have yet to devise effective large-scale management responses other than biosecurity measures to mitigate disease spread and the establishment of disease-free captive assurance colonies prior to or during disease outbreaks. We examined the development of management actions that can be implemented after an epidemic in surviving populations. We developed a conceptual framework with clear interventions to guide experimental management and applied research so that further extinctions of amphibian species threatened by chytridiomycosis might be prevented. Within our framework, there are 2 management approaches: reducing Batrachochytrium dendrobatidis (the fungus that causes chytridiomycosis) in the environment or on amphibians and increasing the capacity of populations to persist despite increased mortality from disease. The latter approach emphasizes that mitigation does not necessarily need to focus on reducing disease-associated mortality. We propose promising management actions that can be implemented and tested based on current knowledge and that include habitat manipulation, antifungal treatments, animal translocation, bioaugmentation, head starting, and selection for resistance. Case studies where these strategies are being implemented will demonstrate their potential to save critically endangered species.
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Affiliation(s)
- Ben C Scheele
- ARC Centre of Excellence for Environmental Decisions, National Environmental Research Program Environmental Decisions Hub, Fenner School of Environment and Society, Forestry Building [48], Australian National University, Canberra, ACT 0200, Australia; NSW Office of Environment and Heritage, Queanbeyan, NSW 2620, Australia.
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Minteer BA, Collins JP. Ecological ethics in captivity: balancing values and responsibilities in zoo and aquarium research under rapid global change. ILAR J 2014; 54:41-51. [PMID: 23904531 DOI: 10.1093/ilar/ilt009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Ethical obligations to animals in conservation research and management are manifold and often conflicting. Animal welfare concerns often clash with the ethical imperative to understand and conserve a population or ecosystem through research and management intervention. The accelerating pace and impact of global environmental change, especially climate change, complicates our understanding of these obligations. One example is the blurring of the distinction between ex situ (zoo- and aquarium-based) conservation and in situ (field-based) approaches as zoos and aquariums become more active in field conservation work and as researchers and managers consider more intensive interventions in wild populations and ecosystems to meet key conservation goals. These shifts, in turn, have consequences for our traditional understanding of the ethics of wildlife research and management, including our relative weighting of animal welfare and conservation commitments across rapidly evolving ex situ and in situ contexts. Although this changing landscape in many ways supports the increased use of captive wildlife in conservation-relevant research, it raises significant ethical concerns about human intervention in populations and ecosystems, including the proper role of zoos and aquariums as centers for animal research and conservation in the coming decades. Working through these concerns requires a pragmatic approach to ethical analysis, one that is able to make trade-offs among the many goods at stake (e.g., animal welfare, species viability, and ecological integrity) as we strive to protect species from further decline and extinction in this century.
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Garcia RA, Cabeza M, Rahbek C, Araújo MB. Multiple dimensions of climate change and their implications for biodiversity. Science 2014; 344:1247579. [PMID: 24786084 DOI: 10.1126/science.1247579] [Citation(s) in RCA: 252] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The 21st century is projected to witness unprecedented climatic changes, with greater warming often reported for high latitudes. Yet, climate change can be measured in a variety of ways, reflecting distinct dimensions of change with unequal spatial patterns across the world. Polar climates are projected to not only warm, but also to shrink in area. By contrast, today's hot and arid climates are expected to expand worldwide and to reach climate states with no current analog. Although rarely appreciated in combination, these multiple dimensions of change convey complementary information. We review existing climate change metrics and discuss how they relate to threats and opportunities for biodiversity. Interpreting climate change metrics is particularly useful for unknown or poorly described species, which represent most of Earth's biodiversity.
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Affiliation(s)
- Raquel A Garcia
- Department of Biogeography and Global Change, National Museum of Natural Sciences, Consejo Superior de Investigaciones Científicas, Calle José Gutierrez Abascal 2, 28006 Madrid, Spain
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Zank C, Becker FG, Abadie M, Baldo D, Maneyro R, Borges-Martins M. Climate change and the distribution of neotropical red-bellied toads (Melanophryniscus, Anura, Amphibia): how to prioritize species and populations? PLoS One 2014; 9:e94625. [PMID: 24755937 PMCID: PMC3995645 DOI: 10.1371/journal.pone.0094625] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Accepted: 03/19/2014] [Indexed: 11/18/2022] Open
Abstract
We used species distribution modeling to investigate the potential effects of climate change on 24 species of Neotropical anurans of the genus Melanophryniscus. These toads are small, have limited mobility, and a high percentage are endangered or present restricted geographical distributions. We looked at the changes in the size of suitable climatic regions and in the numbers of known occurrence sites within the distribution limits of all species. We used the MaxEnt algorithm to project current and future suitable climatic areas (a consensus of IPCC scenarios A2a and B2a for 2020 and 2080) for each species. 40% of the species may lose over 50% of their potential distribution area by 2080, whereas 28% of species may lose less than 10%. Four species had over 40% of the currently known occurrence sites outside the predicted 2080 areas. The effect of climate change (decrease in climatic suitable areas) did not differ according to the present distribution area, major habitat type or phylogenetic group of the studied species. We used the estimated decrease in specific suitable climatic range to set a conservation priority rank for Melanophryniscus species. Four species were set to high conservation priority: M. montevidensis, (100% of its original suitable range and all known occurrence points potentially lost by 2080), M. sp.2, M. cambaraensis, and M. tumifrons. Three species (M. spectabilis, M. stelzneri, and M. sp.3) were set between high to intermediate priority (more than 60% decrease in area predicted by 2080); nine species were ranked as intermediate priority, while eight species were ranked as low conservation priority. We suggest that monitoring and conservation actions should be focused primarily on those species and populations that are likely to lose the largest area of suitable climate and the largest number of known populations in the short-term.
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Affiliation(s)
- Caroline Zank
- Programa de Pós-graduação em Biologia Animal, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- * E-mail:
| | - Fernando Gertum Becker
- Departamento de Ecologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Michelle Abadie
- Programa de Pós-graduação em Biologia Animal, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Diego Baldo
- Instituto de Biología Subtropical (CONICET-UNaM), Laboratorio de Genética Evolutiva, Facultad de Ciencias Exactas, Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Misiones, Argentina
| | - Raúl Maneyro
- Laboratorio de Sistemática e Historia Natural de Vertebrados, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Márcio Borges-Martins
- Programa de Pós-graduação em Biologia Animal, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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Hossack BR, Adams MJ, Pearl CA, Wilson KW, Bull EL, Lohr K, Patla D, Pilliod DS, Jones JM, Wheeler KK, McKay SP, Corn PS. Roles of patch characteristics, drought frequency, and restoration in long-term trends of a widespread amphibian. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2013; 27:1410-1420. [PMID: 24033460 DOI: 10.1111/cobi.12119] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Accepted: 04/06/2013] [Indexed: 06/02/2023]
Abstract
Despite the high profile of amphibian declines and the increasing threat of drought and fragmentation to aquatic ecosystems, few studies have examined long-term rates of change for a single species across a large geographic area. We analyzed growth in annual egg-mass counts of the Columbia spotted frog (Rana luteiventris) across the northwestern United States, an area encompassing 3 genetic clades. On the basis of data collected by multiple partners from 98 water bodies between 1991 and 2011, we used state-space and linear-regression models to measure effects of patch characteristics, frequency of summer drought, and wetland restoration on population growth. Abundance increased in the 2 clades with greatest decline history, but declined where populations are considered most secure. Population growth was negatively associated with temporary hydroperiods and landscape modification (measured by the human footprint index), but was similar in modified and natural water bodies. The effect of drought was mediated by the size of the water body: populations in large water bodies maintained positive growth despite drought, whereas drought magnified declines in small water bodies. Rapid growth in restored wetlands in areas of historical population declines provided strong evidence of successful management. Our results highlight the importance of maintaining large areas of habitat and underscore the greater vulnerability of small areas of habitat to environmental stochasticity. Similar long-term growth rates in modified and natural water bodies and rapid, positive responses to restoration suggest pond construction and other forms of management can effectively increase population growth. These tools are likely to become increasingly important to mitigate effects of increased drought expected from global climate change. Papeles de las Características del Fragmento, Frecuencia de Sequía y Restauración en las Tendencias a Largo Plazo de un Anfibio Ampliamente Distribuido.
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Affiliation(s)
- Blake R Hossack
- U.S. Geological Survey, Aldo Leopold Wilderness Institute, 790 East Beckwith Avenue, Missoula, MT, 59801, U.S.A..
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Shulse CD, Semlitsch RD, Trauth KM. Mosquitofish dominate amphibian and invertebrate community development in experimental wetlands. J Appl Ecol 2013. [DOI: 10.1111/1365-2664.12126] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Kathleen M. Trauth
- Department of Civil and Environmental Engineering University of Missouri Columbia MO 65211 USA
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Green AW, Hooten MB, Grant EHC, Bailey LL. Evaluating breeding and metamorph occupancy and vernal pool management effects for wood frogs using a hierarchical model. J Appl Ecol 2013. [DOI: 10.1111/1365-2664.12121] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adam W. Green
- Department of Fish Wildlife and Conservation Biology Colorado State University 1484 Campus Delivery Fort Collins CO 80523 USA
| | - Mevin B. Hooten
- Department of Fish Wildlife and Conservation Biology Colorado State University 1484 Campus Delivery Fort Collins CO 80523 USA
- US Geological Survey Colorado Cooperative Fish and Wildlife Research Unit 1484 Campus Delivery, Colorado State University Fort Collins CO 80523 USA
- Department of Statistics Colorado State University 1484 Campus Delivery Fort Collins CO 80523 USA
| | - Evan H. Campbell Grant
- US Geological Survey Patuxent Wildlife Research Center S.O. Conte Anadromous Fish Laboratory 1 Migratory Way Turners Falls MA 01376 USA
| | - Larissa L. Bailey
- Department of Fish Wildlife and Conservation Biology Colorado State University 1484 Campus Delivery Fort Collins CO 80523 USA
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