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Ghisbain G, Thiery W, Massonnet F, Erazo D, Rasmont P, Michez D, Dellicour S. Projected decline in European bumblebee populations in the twenty-first century. Nature 2024; 628:337-341. [PMID: 37704726 DOI: 10.1038/s41586-023-06471-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 07/21/2023] [Indexed: 09/15/2023]
Abstract
Habitat degradation and climate change are globally acting as pivotal drivers of wildlife collapse, with mounting evidence that this erosion of biodiversity will accelerate in the following decades1-3. Here, we quantify the past, present and future ecological suitability of Europe for bumblebees, a threatened group of pollinators ranked among the highest contributors to crop production value in the northern hemisphere4-8. We demonstrate coherent declines of bumblebee populations since 1900 over most of Europe and identify future large-scale range contractions and species extirpations under all future climate and land use change scenarios. Around 38-76% of studied European bumblebee species currently classified as 'Least Concern' are projected to undergo losses of at least 30% of ecologically suitable territory by 2061-2080 compared to 2000-2014. All scenarios highlight that parts of Scandinavia will become potential refugia for European bumblebees; it is however uncertain whether these areas will remain clear of additional anthropogenic stressors not accounted for in present models. Our results underline the critical role of global change mitigation policies as effective levers to protect bumblebees from manmade transformation of the biosphere.
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Affiliation(s)
- Guillaume Ghisbain
- Spatial Epidemiology Lab (SpELL), Université Libre de Bruxelles, Brussels, Belgium.
- Laboratory of Zoology, Research Institute for Biosciences, Université de Mons, Mons, Belgium.
| | - Wim Thiery
- Department of Hydrology and Hydraulic Engineering, Vrije Universiteit Brussel, Brussels, Belgium
| | - François Massonnet
- Earth and Climate Research Center, Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Diana Erazo
- Spatial Epidemiology Lab (SpELL), Université Libre de Bruxelles, Brussels, Belgium
| | - Pierre Rasmont
- Laboratory of Zoology, Research Institute for Biosciences, Université de Mons, Mons, Belgium
| | - Denis Michez
- Laboratory of Zoology, Research Institute for Biosciences, Université de Mons, Mons, Belgium
| | - Simon Dellicour
- Spatial Epidemiology Lab (SpELL), Université Libre de Bruxelles, Brussels, Belgium.
- Laboratory of Clinical and Epidemiological Virology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium.
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2
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Liu Y, Olsson A, Larva T, Cantwell-Jones A, Gill RJ, Cederberg B, Webster MT. Genomic variation in montane bumblebees in Scandinavia: High levels of intraspecific diversity despite population vulnerability. Mol Ecol 2024; 33:e17251. [PMID: 38112228 DOI: 10.1111/mec.17251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/24/2023] [Accepted: 12/11/2023] [Indexed: 12/21/2023]
Abstract
Populations of many bumblebee species are declining, with distributions shifting northwards to track suitable climates. Climate change is considered a major contributing factor. Arctic species are particularly vulnerable as they cannot shift further north, making assessment of their population viability important. Analysis of levels of whole-genome variation is a powerful way to analyse population declines and fragmentation. Here, we use genome sequencing to analyse genetic variation in seven species of bumblebee from the Scandinavian mountains, including two classified as vulnerable. We sequenced 333 samples from across the ranges of these species in Sweden. Estimates of effective population size (NE ) vary from ~55,000 for species with restricted high alpine distributions to 220,000 for more widespread species. Population fragmentation is generally very low or undetectable over large distances in the mountains, suggesting an absence of barriers to gene flow. The relatively high NE and low population structure indicate that none of the species are at immediate risk of negative genetic effects caused by high levels of genetic drift. However, reconstruction of historical fluctuations in NE indicates that the arctic specialist species Bombus hyperboreus has experienced population declines since the last ice age and we detected one highly inbred diploid male of this species close to the southern limit of its range, potentially indicating elevated genetic load. Although the levels of genetic variation in montane bumblebee populations are currently relatively high, their ranges are predicted to shrink drastically due to the effects of climate change and monitoring is essential to detect future population declines.
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Affiliation(s)
- Yuanzhen Liu
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Anna Olsson
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Tuuli Larva
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Aoife Cantwell-Jones
- Department of Life Sciences, Georgina Mace Centre for The Living Planet, Imperial College London, Ascot, UK
| | - Richard J Gill
- Department of Life Sciences, Georgina Mace Centre for The Living Planet, Imperial College London, Ascot, UK
| | - Björn Cederberg
- Swedish University of Agricultural Sciences, Swedish Species Information Centre, Uppsala, Sweden
| | - Matthew T Webster
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
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3
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Johnson SA, Jackson HM, Noth H, M'Gonigle LK. Positive impact of postfire environment on bumble bees not explained by habitat variables in a remote forested ecosystem. Ecol Evol 2023; 13:e9743. [PMID: 36713490 PMCID: PMC9873587 DOI: 10.1002/ece3.9743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 12/20/2022] [Accepted: 12/29/2022] [Indexed: 01/26/2023] Open
Abstract
Bumble bees are important pollinators in temperate forested regions where fire is a driving force for habitat change, and thus understanding how these insects respond to fire is critical. Previous work has shown bees are often positively affected by the postfire environment, with burned sites supporting greater bee abundance and diversity, and increased floral resources. The extent to which fire impacts variation in bumblebee site occupancy is not well-understood, especially in higher latitude regions with dense, primarily coniferous forests. Occupancy models are powerful tools for biodiversity analyses, as they separately estimate occupancy probability (likelihood that a species is present at a particular location) and detection probability (likelihood of observing a species when it is present). Using these models, we tested whether bumblebee site occupancy is higher in burned locations as a result of the increase in canopy openness, floral species richness, and floral abundance. We quantified the impact of fire, and associated habitat changes, on bumblebee species' occupancy in an area with high wildfire frequency in British Columbia, Canada. The burn status of a site was the only significant predictor for determining bumblebee occurrence (with burned sites having higher occupancy); floral resource availability and canopy openness only impacted detection probability (roughly, sample bias). These findings highlight the importance of controlling for the influence of habitat on species detection in pollinator studies and suggest that fire in this system changes the habitat for bumble bees in positive ways that extend beyond our measurements of differences in floral resources and canopy cover.
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Affiliation(s)
- Sarah A. Johnson
- Department of Biological SciencesSimon Fraser UniversityBurnabyBritish ColumbiaCanada
| | - Hanna M. Jackson
- Department of Biological SciencesSimon Fraser UniversityBurnabyBritish ColumbiaCanada
| | | | - Leithen K. M'Gonigle
- Department of Biological SciencesSimon Fraser UniversityBurnabyBritish ColumbiaCanada
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4
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Williams PH, Françoso E, Martinet B, Orr MC, Ren Z, Júnior JS, Thanoosing C, Vandame R. When did bumblebees reach South America? Unexpectedly old montane species may be explained by Mexican stopover (Hymenoptera: Apidae). SYST BIODIVERS 2022. [DOI: 10.1080/14772000.2022.2092229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
| | - Elaine Françoso
- Department of Biological Sciences, Royal Holloway University of London, Egham TW20 0EX, UK
| | - Baptiste Martinet
- Avenue F.D, Université Libre de Bruxelles, Roosevelt 50, Brussels, B-1050, Belgium
| | - Michael C. Orr
- Institute of Zoology, Chinese Academy of Sciences, 1 Beichen West Road, Chaoyang, 100101, Beijing, China
| | - Zongxin Ren
- Kunming Institute of Botany, Chinese Academy of Sciences, 132 Lanhei Road, Kunming, 650201, Yunnan, China
| | - José Santos Júnior
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Rémy Vandame
- El Colegio de la Frontera Sur, San Cristóbal de Las Casas, Chiapas, 29290, México
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5
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Fitzgerald JL, Ogilvie JE, CaraDonna PJ. Ecological Drivers and Consequences of Bumble Bee Body Size Variation. ENVIRONMENTAL ENTOMOLOGY 2022; 51:1055-1068. [PMID: 36373400 DOI: 10.1093/ee/nvac093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Indexed: 06/16/2023]
Abstract
Body size is arguably one of the most important traits influencing the physiology and ecology of animals. Shifts in animal body size have been observed in response to climate change, including in bumble bees (Bombus spp. [Hymenoptera: Apidae]). Bumble bee size shifts have occurred concurrently with the precipitous population declines of several species, which appear to be related, in part, to their size. Body size variation is central to the ecology of bumble bees, from their social organization to the pollination services they provide to plants. If bumble bee size is shifted or constrained, there may be consequences for the pollination services they provide and for our ability to predict their responses to global change. Yet, there are still many aspects of the breadth and role of bumble bee body size variation that require more study. To this end, we review the current evidence of the ecological drivers of size variation in bumble bees and the consequences of that variation on bumble bee fitness, foraging, and species interactions. In total we review: (1) the proximate determinants and physiological consequences of size variation in bumble bees; (2) the environmental drivers and ecological consequences of size variation; and (3) synthesize our understanding of size variation in predicting how bumble bees will respond to future changes in climate and land use. As global change intensifies, a better understanding of the factors influencing the size distributions of bumble bees, and the consequences of those distributions, will allow us to better predict future responses of these pollinators.
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Affiliation(s)
- Jacquelyn L Fitzgerald
- Plant Biology and Conservation, Northwestern University, Evanston, IL 60201, USA
- Chicago Botanic Garden, Negaunee Institute for Plant Conservation Science & Action, Glencoe, IL 60022, USA
- Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA
| | - Jane E Ogilvie
- Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA
| | - Paul J CaraDonna
- Plant Biology and Conservation, Northwestern University, Evanston, IL 60201, USA
- Chicago Botanic Garden, Negaunee Institute for Plant Conservation Science & Action, Glencoe, IL 60022, USA
- Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA
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6
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Potapov GS, Kolosova YS, Kondakov AV, Tomilova AA, Filippov BY, Zubrii NA, Spitsyn VM, Spitsyna EA, Zheludkova AA, Gofarov MY, Bovykina GV, Bolotov IN. Phylogeography and ecology of bumble bees on Kolguev Island, a remote European Arctic landmass. Zookeys 2022; 1122:19-37. [PMID: 36761205 PMCID: PMC9848823 DOI: 10.3897/zookeys.1122.82993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 08/30/2022] [Indexed: 11/12/2022] Open
Abstract
The bumble bee fauna of the Russian Arctic is rather poorly known. Kolguev Island, a remote insular territory in the Barents Sea, is one of the deficiently studied areas. In this study, material on Kolguev's bumble bees is re-examined, phylogeographic data analysed, putative scenarios explaining the origin of the bumble bee fauna on the island discussed, and the biology and phenology of these insular populations described. Five bumble bee species, i.e., Bombusflavidus, B.lapponicus, B.jonellus, B.pyrrhopygus, and B.balteatus, were recorded on this island. All of these species are widespread throughout the Eurasian Arctic. Bumble bee populations on Kolguev Island are characterised by a low level of molecular divergence from mainland populations. Based on paleogeographic reconstructions and phylogeographic patterns, it is hypothesised that the bumble bees appeared on this island in the Early Holocene. The lack of rodents (lemmings and voles) sharply decreases the number of available nesting places for bumble bees on Kolguev Island.
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Affiliation(s)
- Grigory S. Potapov
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, Arkhangelsk, 163069, RussiaN. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
| | - Yulia S. Kolosova
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, Arkhangelsk, 163069, RussiaN. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
| | - Alexander V. Kondakov
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, Arkhangelsk, 163069, RussiaN. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
| | - Alena A. Tomilova
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, Arkhangelsk, 163069, RussiaN. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
| | - Boris Yu. Filippov
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, Arkhangelsk, 163069, RussiaN. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
| | - Natalia A. Zubrii
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, Arkhangelsk, 163069, RussiaN. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
| | - Vitaly M. Spitsyn
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, Arkhangelsk, 163069, RussiaN. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
| | - Elizaveta A. Spitsyna
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, Arkhangelsk, 163069, RussiaN. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
| | - Alisa A. Zheludkova
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, Arkhangelsk, 163069, RussiaN. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
| | - Mikhail Yu. Gofarov
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, Arkhangelsk, 163069, RussiaN. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
| | - Galina V. Bovykina
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, Arkhangelsk, 163069, RussiaN. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
| | - Ivan N. Bolotov
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Northern Dvina Emb. 23, Arkhangelsk, 163069, RussiaN. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of SciencesArkhangelskRussia
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7
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Fisher K, Watrous KM, Williams NM, Richardson LL, Woodard SH. A contemporary survey of bumble bee diversity across the state of California. Ecol Evol 2022; 12:e8505. [PMID: 35342613 PMCID: PMC8933253 DOI: 10.1002/ece3.8505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 10/02/2021] [Accepted: 12/14/2021] [Indexed: 11/09/2022] Open
Abstract
Bumble bees (genus Bombus) are important pollinators with more than 260 species found worldwide, many of which are in decline. Twenty-five species occur in California with the highest species abundance and diversity found in coastal, northern, and montane regions. No recent studies have examined California bumble bee diversity across large spatial scales nor explored contemporary community composition patterns across the state. To fill these gaps, we collected 1740 bumble bee individuals, representing 17 species from 17 sites (~100 bees per site) in California, using an assemblage monitoring framework. This framework is intended to provide an accurate estimate of relative abundance of more common species without negatively impacting populations through overcollection. Our sites were distributed across six ecoregions, with an emphasis on those that historically hosted high bumble bee diversity. We compared bumble bee composition among these sites to provide a snapshot of California bumble bee biodiversity in a single year. Overall, the assemblage monitoring framework that we employed successfully captured estimated relative abundance of species for most sites, but not all. This shortcoming suggests that bumble bee biodiversity monitoring in California might require multiple monitoring approaches, including greater depth of sampling in some regions, given the variable patterns in bumble bee abundance and richness throughout the state. Our study sheds light on the current status of bumble bee diversity in California, identifies some areas where greater sampling effort and conservation action should be focused in the future, and performs the first assessment of an assembly monitoring framework for bumble bee communities in the state.
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Affiliation(s)
- Kaleigh Fisher
- Department of EntomologyUniversity of California, RiversideRiversideCaliforniaUSA
| | - Kristal M. Watrous
- Department of EntomologyUniversity of California, RiversideRiversideCaliforniaUSA
| | - Neal M. Williams
- Department of Entomology and NematologyUniversity of California, DavisDavisCaliforniaUSA
| | | | - Sarah Hollis Woodard
- Department of EntomologyUniversity of California, RiversideRiversideCaliforniaUSA
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8
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OUP accepted manuscript. Zool J Linn Soc 2022. [DOI: 10.1093/zoolinnean/zlab123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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9
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Christmas MJ, Jones JC, Olsson A, Wallerman O, Bunikis I, Kierczak M, Whitley KM, Sullivan I, Geib JC, Miller-Struttmann NE, Webster MT. A genomic and morphometric analysis of alpine bumblebees: Ongoing reductions in tongue length but no clear genetic component. Mol Ecol 2021; 31:1111-1127. [PMID: 34837435 DOI: 10.1111/mec.16291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 11/16/2021] [Accepted: 11/22/2021] [Indexed: 11/29/2022]
Abstract
Over the last six decades, populations of the bumblebees Bombus sylvicola and Bombus balteatus in Colorado have experienced decreases in tongue length, a trait important for plant-pollinator mutualisms. It has been hypothesized that this observation reflects selection resulting from shifts in floral composition under climate change. Here we used morphometrics and population genomics to determine whether morphological change is ongoing, investigate the genetic basis of morphological variation, and analyse population structure in these populations. We generated a genome assembly of B. balteatus. We then analysed whole-genome sequencing data and morphometric measurements of 580 samples of both species from seven high-altitude localities. Out of 281 samples originally identified as B. sylvicola, 67 formed a separate genetic cluster comprising a newly-discovered cryptic species ("incognitus"). However, an absence of genetic structure within species suggests that gene flow is common between mountains. We found a significant decrease in tongue length between bees collected between 2012-2014 and in 2017, indicating that morphological shifts are ongoing. We did not discover any genetic associations with tongue length, but a SNP related to production of a proteolytic digestive enzyme was implicated in body size variation. We identified evidence of covariance between kinship and both tongue length and body size, which is suggestive of a genetic component of these traits, although it is possible that shared environmental effects between colonies are responsible. Our results provide evidence for ongoing modification of a morphological trait important for pollination and indicate that this trait probably has a complex genetic and environmental basis.
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Affiliation(s)
- Matthew J Christmas
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Julia C Jones
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.,School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
| | - Anna Olsson
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Ola Wallerman
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Ignas Bunikis
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Marcin Kierczak
- Department of Cell and Molecular Biology, National Bioinformatics Infrastructure Sweden, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Kaitlyn M Whitley
- Department of Biology, Appalachian State University, Boone, North Carolina, USA.,U.S. Department of Agriculture, Agriculture Research Service, Charleston, South Carolina, USA
| | - Isabel Sullivan
- Department of Biology, Appalachian State University, Boone, North Carolina, USA.,Marine Estuarine Environmental Sciences, University of Maryland, College Park, Maryland, USA
| | - Jennifer C Geib
- Department of Biology, Appalachian State University, Boone, North Carolina, USA
| | | | - Matthew T Webster
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
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10
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Molecular characteristics of Bombus (Alpinobombus) polaris from North Greenland with comments on its general biology and phylogeography. Polar Biol 2021. [DOI: 10.1007/s00300-021-02952-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AbstractThe bumble bee Bombus polaris (Curtis 1835) is known from the northernmost region of Greenland. But how it can survive there, where in terms of geographic origin it came from, and which species in addition to B. pyrrhopygus (Friese 1902) genetically it is most closely related to are insufficiently answered questions that have motivated us to carry out this study. On the basis of a molecular analysis of the cytochrome oxidase I gene of a B. (Alpinobombus) polaris from North Greenland (82° 48′ N; 42° 14′ W), we conclude that the female specimen we analysed was most closely related to the Canadian populations of B. polaris. Geographic proximity, occurrence of B. polaris on Ellesmere Island and wind direction are likely factors that have aided B. polaris to establish itself in northern and eastern Greenland. The presence of five haplotypes in the studied sequences from Greenland indicates a moderately high level of genetic diversity of B. polaris in Greenland, reflecting the successful adaptation of B. polaris populations. In the broader context of entomological life in the high Arctic, our results on B. polaris allow us to conclude that the survival of pollinating species in the high Arctic under the changing climate scenario depends not only on the weather but also on an individual’s opportunity to continue to locate suitable food sources, i.e. pollen and nectar in the case of B. polaris. This aspect, briefly touched upon in this study, is of relevance not just to B. polaris, but the Arctic entomofauna generally.
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11
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Distant but related: genetic structure in the circum-boreal bumblebee Bombus jonellus (Kirby, 1802). Polar Biol 2021. [DOI: 10.1007/s00300-021-02937-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Potapov GS, Berezin MV, Kolosova YS, Kondakov AV, Tomilova AA, Spitsyn VM, Zheludkova AA, Zubrii NA, Filippov BY, Bolotov IN. The last refugia for a polar relict pollinator: isolates of Bombus glacialis on Novaya Zemlya and Wrangel Island indicate its broader former range in the Pleistocene. Polar Biol 2021. [DOI: 10.1007/s00300-021-02912-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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13
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Sun C, Huang J, Wang Y, Zhao X, Su L, Thomas GWC, Zhao M, Zhang X, Jungreis I, Kellis M, Vicario S, Sharakhov IV, Bondarenko SM, Hasselmann M, Kim CN, Paten B, Penso-Dolfin L, Wang L, Chang Y, Gao Q, Ma L, Ma L, Zhang Z, Zhang H, Zhang H, Ruzzante L, Robertson HM, Zhu Y, Liu Y, Yang H, Ding L, Wang Q, Ma D, Xu W, Liang C, Itgen MW, Mee L, Cao G, Zhang Z, Sadd BM, Hahn MW, Schaack S, Barribeau SM, Williams PH, Waterhouse RM, Mueller RL. Genus-Wide Characterization of Bumblebee Genomes Provides Insights into Their Evolution and Variation in Ecological and Behavioral Traits. Mol Biol Evol 2021; 38:486-501. [PMID: 32946576 PMCID: PMC7826183 DOI: 10.1093/molbev/msaa240] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Bumblebees are a diverse group of globally important pollinators in natural ecosystems and for agricultural food production. With both eusocial and solitary life-cycle phases, and some social parasite species, they are especially interesting models to understand social evolution, behavior, and ecology. Reports of many species in decline point to pathogen transmission, habitat loss, pesticide usage, and global climate change, as interconnected causes. These threats to bumblebee diversity make our reliance on a handful of well-studied species for agricultural pollination particularly precarious. To broadly sample bumblebee genomic and phenotypic diversity, we de novo sequenced and assembled the genomes of 17 species, representing all 15 subgenera, producing the first genus-wide quantification of genetic and genomic variation potentially underlying key ecological and behavioral traits. The species phylogeny resolves subgenera relationships, whereas incomplete lineage sorting likely drives high levels of gene tree discordance. Five chromosome-level assemblies show a stable 18-chromosome karyotype, with major rearrangements creating 25 chromosomes in social parasites. Differential transposable element activity drives changes in genome sizes, with putative domestications of repetitive sequences influencing gene coding and regulatory potential. Dynamically evolving gene families and signatures of positive selection point to genus-wide variation in processes linked to foraging, diet and metabolism, immunity and detoxification, as well as adaptations for life at high altitudes. Our study reveals how bumblebee genes and genomes have evolved across the Bombus phylogeny and identifies variations potentially linked to key ecological and behavioral traits of these important pollinators.
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Affiliation(s)
- Cheng Sun
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jiaxing Huang
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yun Wang
- School of Life Sciences, Chongqing University, Chongqing, China
| | - Xiaomeng Zhao
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Long Su
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Gregg W C Thomas
- Division of Biological Sciences, University of Montana, Missoula, MT
| | - Mengya Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Xingtan Zhang
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Irwin Jungreis
- MIT Computer Science and Artificial Intelligence Laboratory, Cambridge, MA.,Broad Institute of MIT and Harvard, Cambridge, MA
| | - Manolis Kellis
- MIT Computer Science and Artificial Intelligence Laboratory, Cambridge, MA.,Broad Institute of MIT and Harvard, Cambridge, MA
| | - Saverio Vicario
- Institute of Atmospheric Pollution Research-Italian National Research Council C/O Department of Physics, University of Bari, Bari, Italy
| | - Igor V Sharakhov
- Department of Entomology, Virginia Polytechnic and State University, Blacksburg, VA.,Department of Cytology and Genetics, Tomsk State University, Tomsk, Russian Federation
| | - Semen M Bondarenko
- Department of Entomology, Virginia Polytechnic and State University, Blacksburg, VA
| | - Martin Hasselmann
- Department of Livestock Population Genomics, Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
| | - Chang N Kim
- UC Santa Cruz Genomics Institute, University of California Santa Cruz, Santa Cruz, CA
| | - Benedict Paten
- UC Santa Cruz Genomics Institute, University of California Santa Cruz, Santa Cruz, CA
| | | | - Li Wang
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Yuxiao Chang
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Qiang Gao
- BGI Genomics, BGI-Shenzhen, Shenzhen, China
| | - Ling Ma
- BGI Genomics, BGI-Shenzhen, Shenzhen, China
| | - Lina Ma
- China National Center for Bioinformation & Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
| | - Zhang Zhang
- China National Center for Bioinformation & Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
| | - Hongbo Zhang
- School of Life Sciences, Chongqing University, Chongqing, China
| | - Huahao Zhang
- College of Pharmacy and Life Science, Jiujiang University, Jiujiang, China
| | - Livio Ruzzante
- Department of Ecology and Evolution, University of Lausanne, and Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Hugh M Robertson
- Department of Entomology, University of Illinois at Urbana-Champaign, Champaign, IL
| | - Yihui Zhu
- Department of Medical Microbiology and Immunology, Genome Center, and MIND Institute, University of California Davis, Davis, CA
| | - Yanjie Liu
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Huipeng Yang
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lele Ding
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Quangui Wang
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dongna Ma
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Weilin Xu
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Cheng Liang
- Institute of Sericultural and Apiculture, Yunnan Academy of Agricultural Sciences, Mengzi, China
| | - Michael W Itgen
- Department of Biology, Colorado State University, Fort Collins, CO
| | - Lauren Mee
- Department of Ecology, Evolution and Behaviour, Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Gang Cao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Ze Zhang
- School of Life Sciences, Chongqing University, Chongqing, China
| | - Ben M Sadd
- School of Biological Sciences, Illinois State University, Normal, IL
| | - Matthew W Hahn
- Department of Biology, Indiana University, Bloomington, IN.,Department of Computer Science, Indiana University, Bloomington, IN
| | | | - Seth M Barribeau
- Department of Ecology, Evolution and Behaviour, Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Paul H Williams
- Department of Life Sciences, Natural History Museum, London, United Kingdom
| | - Robert M Waterhouse
- Department of Ecology and Evolution, University of Lausanne, and Swiss Institute of Bioinformatics, Lausanne, Switzerland
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14
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Williams PH. Not just cryptic, but a barcode bush: PTP re-analysis of global data for the bumblebee subgenus Bombus s. str. supports additional species (Apidae, genus Bombus). J NAT HIST 2021. [DOI: 10.1080/00222933.2021.1900444] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Brasero N, Ghisbain G, Lecocq T, Michez D, Valterová I, Biella P, Monfared A, Williams PH, Rasmont P, Martinet B. Resolving the species status of overlooked West‐Palaearctic bumblebees. ZOOL SCR 2021. [DOI: 10.1111/zsc.12486] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Nicolas Brasero
- Laboratory of Zoology Research institute for Biosciences, University of Mons MonsBelgium
| | - Guillaume Ghisbain
- Laboratory of Zoology Research institute for Biosciences, University of Mons MonsBelgium
| | - Thomas Lecocq
- Laboratory of Zoology Research institute for Biosciences, University of Mons MonsBelgium
- Université de Lorraine, INRAE, URAFPA Nancy France
| | - Denis Michez
- Laboratory of Zoology Research institute for Biosciences, University of Mons MonsBelgium
| | - Irena Valterová
- Academy of Sciences of the Czech Republic Institute of Organic Chemistry and Biochemistry Prague Czech Republic
- Faculty of Tropical AgriSciences Czech University of Life Sciences Prague Czech Republic
| | - Paolo Biella
- Department of Biotechnology and Biosciences University of Milano‐Bicocca Milano Italy
| | - Alireza Monfared
- Department of Plant Protection, Faculty of Agriculture Yasouj University Yasouj Iran
| | | | - Pierre Rasmont
- Laboratory of Zoology Research institute for Biosciences, University of Mons MonsBelgium
| | - Baptiste Martinet
- Laboratory of Zoology Research institute for Biosciences, University of Mons MonsBelgium
- Evolutionary Biology & Ecology Université Libre de Bruxelles Bruxelles Belgium
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16
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Sheffield CS, Oram R, Heron JM. Bombus (Pyrobombus) johanseni Sladen, 1919, a valid North American bumble bee species, with a new synonymy and comparisons to other "red-banded" bumble bee species in North America (Hymenoptera, Apidae, Bombini). Zookeys 2020; 984:59-81. [PMID: 33223869 PMCID: PMC7658183 DOI: 10.3897/zookeys.984.55816] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 09/29/2020] [Indexed: 11/12/2022] Open
Abstract
The bumble bee (Hymenoptera, Apidae, Bombini, Bombus Latreille) fauna of the Nearctic and Palearctic regions are considered well known, with a few species occurring in both regions (i.e., with a Holarctic distribution), but much of the Arctic, especially in North America, remains undersampled or unsurveyed. Several bumble bee taxa have been described from northern North America, these considered either valid species or placed into synonymy with other taxa. However, some of these synonymies were made under the assumption of variable hair colour only, without detailed examination of other morphological characters (e.g., male genitalia, hidden sterna), and without the aid of molecular data. Recently, Bombusinteracti Martinet, Brasero & Rasmont, 2019 was described from Alaska where it is considered endemic; based on both morphological and molecular data, it was considered a taxon distinct from B.lapponicus (Fabricius, 1793). Bombusinteracti was also considered distinct from B.gelidus Cresson, 1878, a taxon from Alaska surmised to be a melanistic form of B.lapponicussylvicola Kirby, 1837, the North American subspecies (Martinet et al. 2019). Unfortunately, Martinet et al. (2019) did not have DNA barcode sequences (COI) for females of B.interacti, but molecular data for a melanistic female specimen matching the DNA barcode sequence of the holotype of B.interacti have been available in the Barcodes of Life Data System (BOLD) since 2011. Since then, additional specimens have been obtained from across northern North America. Also unfortunate was that B.sylvicolavar.johanseni Sladen, 1919, another melanistic taxon described from far northern Canada, was not considered. Bombusjohanseni is here recognized as a distinct taxon from B.lapponicussylvicola Kirby, 1837 (sensuMartinet et al. 2019) in the Nearctic region, showing the closest affinity to B.glacialis Friese, 1902 of the Old World. As the holotype male of B.interacti is genetically identical to material identified here as B.johanseni, it is placed into synonymy. Thus, we consider B.johanseni a widespread species occurring across arctic and subarctic North America in which most females are dark, with rarer pale forms (i.e., “interacti”) occurring in and seemingly restricted to Alaska. In addition to B.johanseni showing molecular affinities to B.glacialis of the Old World, both taxa also inhabit similar habitats in the arctic areas of both Nearctic and Palearctic, respectively. It is also likely that many of the specimens identified as B.lapponicussylvicola from far northern Canada and Alaska might actually be B.johanseni, so that should be considered for future studies of taxonomy, distribution, and conservation assessment of North American bumble bees.
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Affiliation(s)
- Cory S Sheffield
- Royal Saskatchewan Museum, 2340 Albert Street, Regina, Saskatchewan, Canada S4P 2V7 Royal Saskatchewan Museum Regina Canada
| | - Ryan Oram
- Royal Saskatchewan Museum, 2340 Albert Street, Regina, Saskatchewan, Canada S4P 2V7 Royal Saskatchewan Museum Regina Canada
| | - Jennifer M Heron
- British Columbia Ministry of Environment and Climate Change Strategy, Vancouver, British Columbia, Canada V6T 1Z1 British Columbia Ministry of Environment and Climate Change Strategy Vancouver Canada
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17
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Ghisbain G, Williams PH, Michez D, Branstetter MG, Rasmont P. Contribution to the knowledge of the bumblebee fauna of Afghanistan (Hymenoptera, Apidae, Bombus Latreille). Zookeys 2020; 973:69-87. [PMID: 33110373 PMCID: PMC7550395 DOI: 10.3897/zookeys.973.54796] [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: 05/27/2020] [Accepted: 06/29/2020] [Indexed: 11/23/2022] Open
Abstract
Bumblebees (Hymenoptera: Apidae: genus Bombus Latreille, 1802) constitute an important group of pollinators for many wild plants and crops in north temperate regions and South America. Although knowledge of these insects has been increasing over the last decades, some geographic areas remain poorly studied and additions to the knowledge of their faunas are infrequent. Afghanistan is one example of a country that is currently underrepresented in the scientific literature despite its high species diversity. For this study, more than 420 new occurrence records were gathered for 17 bumblebee species belonging to all eight subgenera recorded in the country, including the first record of a species closely related to the Blongipennis group. Additionally, the first standardized database for Afghan bees is launched, which we hope will be enriched in the future to allow further assessments of population trends for the bumblebees of Afghanistan. Finally, the previously published species records for the country are discussed considering the most recent taxonomic revisions of the genus and key perspectives are highlighted for further work in this understudied country and neighboring regions.
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Affiliation(s)
- Guillaume Ghisbain
- Laboratory of Zoology, Research Institute of Biosciences, University of Mons (UMONS), Mons, Belgium University of Mons Mons Belgium
| | - Paul H Williams
- Department of Life Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK Natural History Museum London United Kingdom
| | - Denis Michez
- Laboratory of Zoology, Research Institute of Biosciences, University of Mons (UMONS), Mons, Belgium University of Mons Mons Belgium
| | - Michael G Branstetter
- U.S. Department of Agriculture, Agricultural Research Service, Pollinating Insects Research Unit, Utah State University, Logan, Utah 84322, USA Utah State University Logan United States of America
| | - Pierre Rasmont
- Laboratory of Zoology, Research Institute of Biosciences, University of Mons (UMONS), Mons, Belgium University of Mons Mons Belgium
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18
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Graves TA, Janousek WM, Gaulke SM, Nicholas AC, Keinath DA, Bell CM, Cannings S, Hatfield RG, Heron JM, Koch JB, Loffland HL, Richardson LL, Rohde AT, Rykken J, Strange JP, Tronstad LM, Sheffield CS. Western bumble bee: declines in the continental United States and range‐wide information gaps. Ecosphere 2020. [DOI: 10.1002/ecs2.3141] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Tabitha A. Graves
- U.S. Geological Survey Northern Rocky Mountain Science Center Glacier Field Station, 38 Mather Drive West Glacier Montana 59936 USA
| | - William M. Janousek
- U.S. Geological Survey Northern Rocky Mountain Science Center Glacier Field Station, 38 Mather Drive West Glacier Montana 59936 USA
| | - Sarah M. Gaulke
- U.S. Geological Survey Northern Rocky Mountain Science Center Glacier Field Station, 38 Mather Drive West Glacier Montana 59936 USA
| | - Amy C. Nicholas
- U.S. Fish and Wildlife Service 334 Parsley Blvd Cheyenne Wyoming 82007 USA
| | - Douglas A. Keinath
- U.S. Fish and Wildlife Service 334 Parsley Blvd Cheyenne Wyoming 82007 USA
| | - Christine M. Bell
- Wyoming Natural Diversity Database University of Wyoming Laramie Wyoming 82071 USA
| | - Syd Cannings
- Environment and Climate Change Canada Canadian Wildlife Service Whitehorse Y1A 5B7 Canada
| | | | - Jennifer M. Heron
- Conservation Science Section British Columbia Ministry of Environment and Climate Change Strategy Suite 200, 10428, 153rd Street Surrey British Columbia V3R 1E1 Canada
| | - Jonathan B. Koch
- Tropical Conservation Biology and Environmental Science Graduate Program University of Hawai‘i, Hilo 200 W. Kāwili Street Hilo Hawaii 96720 USA
- Pollinating Insects ‐ Biology, Management, and Systematics Research Unit U.S. Department of Agriculture ‐ Agricultural Research Service 1410 N 800 E Logan Utah 84341 USA
| | - Helen L. Loffland
- The Institute for Bird Populations PO Box 1346 Point Reyes Station California 94956 USA
| | - Leif L. Richardson
- Gund Institute for Environment Rubenstein School of Environment and Natural Resources University of Vermont Burlington Vermont 05405 USA
| | - Ashley T. Rohde
- Department of Wildland Resources Utah State University 5200 Old Main Hill Logan Utah84322 USA
| | - Jessica Rykken
- Denali National Park and Preserve PO Box 9 Denali Park Alaska 99755 USA
| | - James P. Strange
- Entomology Department The Ohio State University 216 Kottman Hall Columbus Ohio 43210 USA
| | - Lusha M. Tronstad
- Wyoming Natural Diversity Database University of Wyoming Laramie Wyoming 82071 USA
| | - Cory S. Sheffield
- Royal Saskatchewan Museum 2340 Albert Street Regina Saskatchewan S4P 2V7 Canada
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19
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Paukkunen J, Kozlov MV. Stinging Wasps, Ants and Bees (Hymenoptera: Aculeata) of the Nenets Autonomous Okrug, Northern Russia. ANN ZOOL FENN 2020. [DOI: 10.5735/086.057.0112] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Juho Paukkunen
- Finnish Museum of Natural History, Zoology unit, P.O. Box 17, FI-00014 University of Helsinki, Finland
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20
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Dehon M, Engel MS, Gérard M, Aytekin AM, Ghisbain G, Williams PH, Rasmont P, Michez D. Morphometric analysis of fossil bumble bees (Hymenoptera, Apidae, Bombini) reveals their taxonomic affinities. Zookeys 2019; 891:71-118. [PMID: 31802973 PMCID: PMC6882928 DOI: 10.3897/zookeys.891.36027] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 09/28/2019] [Indexed: 11/25/2022] Open
Abstract
Bumble bees (Bombus spp.) are a widespread corbiculate lineage (Apinae: Corbiculata: Bombini), mostly found among temperate and alpine ecosystems. Approximately 260 species have been recognized and grouped recently into a simplified system of 15 subgenera. Most of the species are nest-building and primitively eusocial. Species of Bombus have been more intensely studied than any other lineages of bees with the exception of the honey bees. However, most bumble bee fossils are poorly described and documented, making their placement relative to other Bombus uncertain. A large portion of the known and presumed bumble bee fossils were re-examined in an attempt to better understand their affinities with extant Bombini. The taxonomic affinities of fossil specimens were re-assessed based on morphological features and previous descriptions, and for 13 specimens based on geometric morphometrics of forewing shape. None of the specimens coming from Eocene and Oligocene deposits were assigned within the contemporary shape space of any subgenus of Bombus. It is shown that Calyptapis florissantensis Cockerell, 1906 (Eocene-Oligocene boundary, Florissant shale, Colorado, USA) and Oligobombus cuspidatus Antropov, 2014 (Late Eocene, Bembridge Marls) likely belong to stem-group Bombini. Bombus anacolus Zhang, 1994, B. dilectus Zhang, 1994, B. luianus Zhang, 1990 (Middle Miocene, Shanwang Formation), as well as B. vetustus Rasnitsyn & Michener, 1991 (Miocene, Botchi Formation) are considered as species inquirenda. In the Miocene, affinities of fossils with derived subgenera of Bombus s. l. increased, and some are included in the shape space of contemporary subgenera: Cullumanobombus (i.e., B. pristinus Unger, 1867, B. randeckensis Wappler & Engel, 2012, and B. trophonius Prokop, Dehon, Michez & Engel, 2017), Melanobombus (i.e., B. cerdanyensis Dehon, De Meulemeester & Engel, 2014), and Mendacibombus (i.e., B. beskonakensis (Nel & Petrulevičius, 2003), new combination), agreeing with previous estimates of diversification.
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Affiliation(s)
- Manuel Dehon
- Laboratory of Zoology, Research Institute of Biosciences, University of Mons, Place du parc 20, 7000 Mons, Belgium
| | - Michael S. Engel
- Division of Invertebrate Zoology, American Museum of Natural History, Central Park West at 79th, New York, NY 10024-5192, USA
- Division of Entomology, Natural History Museum, and Department of Ecology and Evolutionary Biology, University of Kansas, 1501 Crestline Drive – Suite 140, Lawrence, KS 66045, USA
| | - Maxence Gérard
- Laboratory of Zoology, Research Institute of Biosciences, University of Mons, Place du parc 20, 7000 Mons, Belgium
| | - A. Murat Aytekin
- Laboratory of Zoology, Research Institute of Biosciences, University of Mons, Place du parc 20, 7000 Mons, Belgium
- Pamukkale Sitesi, B Blok, Çayyolu, Ankara, Turkey
| | - Guillaume Ghisbain
- Laboratory of Zoology, Research Institute of Biosciences, University of Mons, Place du parc 20, 7000 Mons, Belgium
| | - Paul H. Williams
- Department of Life Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK
| | - Pierre Rasmont
- Laboratory of Zoology, Research Institute of Biosciences, University of Mons, Place du parc 20, 7000 Mons, Belgium
| | - Denis Michez
- Laboratory of Zoology, Research Institute of Biosciences, University of Mons, Place du parc 20, 7000 Mons, Belgium
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