Recent low levels of differentiation in the native Bombus ephippiatus (Hymenoptera: Apidae) along two Neotropical mountain-ranges in Guatemala

Landaverde-González, Patricia; Baltz, Lucie M.; Escobedo-Kenefic, Natalia; Mérida, Jorge; Paxton, Robert J.; Husemann, Martin

doi:10.1007/s10531-018-1612-0

Cited by 13 publications

(6 citation statements)

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“…Factors other than climate change will also contribute to area loss in FPD outside protected natural areas, such as land‐use change (i.e., urban and agricultural expansion) which is typically exacerbated by pesticide misuse, landscape fragmentation, and loss of forest habitat near protected areas (DeFries et al, 2005; Rafferty, 2017; Wagner et al, 2021). Even if some bees are resilient to fragmentation in the Neotropics (Jaffé et al, 2016; Zimmermann et al, 2011), and species like B. ephippiatus can sustain gene flow and disperse in fragmentated landscapes (Landaverde‐González et al, 2018), this resilience could diminish in the future. This decline in resilience could, in part, be associated with climate change given that our analysis identifies it to be a factor that could potentially reduce the environmental suitability for bumble bees and reduce their climatic limits.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Climate change will not be the only challenge for bumble bee persistence. Other threats to Mesoamerican bumble bee persistence include habitat fragmentation, pathogen pressure, and pesticide pressure, which will be an added stressor in their climatic limits, thereby exacerbating decline (Gallot-Lavallée et al, 2016;Landaverde-González et al, 2018;Williams & Osborne, 2009). The aim of this study is to characterize the current (CPD) and future potential distribution (FPD) of 18 Mesoamerican bumble bee species using ecological niche modeling (ENM).…”

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confidence: 99%

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Reduction in the potential distribution of bumble bees (Apidae:Bombus) in Mesoamerica under different climate change scenarios: Conservation implications

Martínez-López

Koch

Martínez-Morales³

et al. 2021

Global Change Biology

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Bumble bees are an ecologically and economically important group of pollinating insects worldwide. Global climate change is predicted to affect bumble bee ecology including habitat suitability and geographic distribution. Our study aims to estimate the impact of projected climate change on 18 Mesoamerican bumble bee species. We used ecological niche modeling (ENM) using current and future climate emissions scenarios (representative concentration pathway 4.5, 6.0, and 8.5) and models (CCSM4, HadGEM2‐AO, and MIROC‐ESM‐CHEM). Regardless of the scenario and model applied, our results suggest that all bumble bee species are predicted to undergo a reduction in their potential distribution and habitat suitability due to projected climate change. ENMs based on low emission scenarios predict a distribution loss ranging from 7% to 67% depending on the species for the year 2050. Furthermore, we discovered that the reduction of bumble bee geographic range shape will be more evident at the margins of their distribution. The reduction of suitable habitat is predicted to be accompanied by a 100–500 m upslope change in altitude and 1–581 km shift away from the current geographic centroid of a species' distribution. On average, protected natural areas in Mesoamerica cover ~14% of each species' current potential distribution, and this proportion is predicted to increase to ~23% in the high emission climate change scenarios. Our models predict that climate change will reduce Mesoamerican bumble bee habitat suitability, especially for rare species, by reducing their potential distribution ranges and suitability. The small proportion of current and future potential distribution falling in protected natural areas suggests that such areas will likely have marginal contribution to bumble bee habitat conservation. Our results have the capacity to inform stakeholders in designing effective landscape management for bumble bees, which may include developing restoration plans for montane pine oak forests habitats and native flowering plants.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Reduction in the potential distribution of bumble bees (Apidae:Bombus) in Mesoamerica under different climate change scenarios: Conservation implications

Martínez-López

Koch

Martínez-Morales³

et al. 2021

Global Change Biology

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“…In South America, the genetic diversity of the bumble bee B. pauloensis has decreased since the 1950 s (Maebe et al, 2018). Also, while B. ephippiatus shows no genetic patterns of isolation‐by‐distance, some differentiation is starting to occur due to recent deforestation (Landaverde‐González et al, 2018). B. huntii shows genetic structuring in southern Mexico related to its distribution across different high‐elevation montane habitats, structure not observed at larger spatial scales in North America (Koch et al, 2018).…”

Section: Potential Geographic Differences In Genetic Responsementioning

confidence: 99%

Conservation insights from wild bee genetic studies: Geographic differences, susceptibility to inbreeding, and signs of local adaptation

Kelemen

Rehan

2021

Evolutionary Applications

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Conserving bees are critical both ecologically and economically. Genetic tools are valuable for monitoring these vital pollinators since tracking these small, fast‐flying insects by traditional means is difficult. By surveying the current state of the literature, this review discusses how recent advances in landscape genetic and genomic research are elucidating how wild bees respond to anthropogenic threats. Current literature suggests that there may be geographic differences in the vulnerability of bee species to landscape changes. Populations of temperate bee species are becoming more isolated and more genetically depauperate as their landscape becomes more fragmented, but tropical bee species appear unaffected. These differences may be an artifact of historical differences in land‐use, or it suggests that different management plans are needed for temperate and tropical bee species. Encouragingly, genetic studies on invasive bee species indicate that low levels of genetic diversity may not lead to rapid extinction in bees as once predicted. Additionally, next‐generation sequencing has given researchers the power to identify potential genes under selection, which are likely critical to species’ survival in their rapidly changing environment. While genetic studies provide insights into wild bee biology, more studies focusing on a greater phylogenetic and life‐history breadth of species are needed. Therefore, caution should be taken when making broad conservation decisions based on the currently few species examined.

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“…have reported POWSIM results for microsatellite power (e.g Shohami and Nathan 2014;Landaverde-González et al 2018)…”

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confidence: 99%

Genetic diversity and connectivity in fragmented populations of Rhinanthus minor in two regions with contrasting land-use

et al. 2019

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Knowledge of genetic diversity and connectivity within and between populations of specialist meadow plants is crucial to developing effective conservation strategies at the landscape-scale. This study investigated levels of genetic diversity within, and gene flow between populations of a key annual species, Rhinanthus minor in protected meadows and landscape matrix sites in two contrasting regions. Possible barriers to gene flow were also analysed. Leaf material from 714 individuals in an extensively managed upland region and an intensively managed lowland region of the UK was genotyped using microsatellite markers. Genetic diversity was similar in the two regions (H e = 0.48 and 0.44). F ST values indicated population differentiation in both regions but the estimate was higher in the lowland (F ST = 0.28) than in the upland region (F ST = 0.19); evidence of global structure was revealed in a spatial principal components analysis but a maximum likelihood population effects model did not identify significant predictors of population differentiation after testing the effects of Euclidean geographic distance, land cover and elevation. Conservation strategies should aim to maintain large populations in meadows to enhance genetic diversity. At the same time the focus should be on existing and additional species-rich grassland fragments, particularly in areas of intensive land-use, if genetic connectivity is to be retained.

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Recent low levels of differentiation in the native Bombus ephippiatus (Hymenoptera: Apidae) along two Neotropical mountain-ranges in Guatemala

Cited by 13 publications

References 68 publications

Reduction in the potential distribution of bumble bees (Apidae:Bombus) in Mesoamerica under different climate change scenarios: Conservation implications

Reduction in the potential distribution of bumble bees (Apidae:Bombus) in Mesoamerica under different climate change scenarios: Conservation implications

Conservation insights from wild bee genetic studies: Geographic differences, susceptibility to inbreeding, and signs of local adaptation

Genetic diversity and connectivity in fragmented populations of Rhinanthus minor in two regions with contrasting land-use

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