Range expansion of an already widespread bee under climate change

Dew, Rebecca M.; Silva, Daniel P.; Rehan, Sandra M.

doi:10.1016/j.gecco.2019.e00584

Cited by 27 publications

(26 citation statements)

References 80 publications

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“…ranges in North America and Europe have contracted because they failed to move northward as southern sections of their range became too warm (Kerr et al, 2015; Sirois‐Delisle & Kerr, 2018). However, other taxa, such as Ceratina australensis , an arid‐adapted, Australian species, should expand their range under future climate conditions, in this case, due to increasing area of arid habitat (Dew et al, 2019). Physiological differences may be particularly important in determining the response of species to altered climate.…”

Section: Introductionmentioning

confidence: 99%

Wild bees as winners and losers: Relative impacts of landscape composition, quality, and climate

Kammerer

Goslee

Douglas

et al. 2021

Global Change Biology

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Wild bees, like many other taxa, are threatened by land‐use and climate change, which, in turn, jeopardizes pollination of crops and wild plants. Understanding how land‐use and climate factors interact is critical to predicting and managing pollinator populations and ensuring adequate pollination services, but most studies have evaluated either land‐use or climate effects, not both. Furthermore, bee species are incredibly variable, spanning an array of behavioral, physiological, and life‐history traits that can increase or decrease resilience to land‐use or climate change. Thus, there are likely bee species that benefit, while others suffer, from changing climate and land use, but few studies have documented taxon‐specific trends. To address these critical knowledge gaps, we analyzed a long‐term dataset of wild bee occurrences from Maryland, Delaware, and Washington DC, USA, examining how different bee genera and functional groups respond to landscape composition, quality, and climate factors. Despite a large body of literature documenting land‐use effects on wild bees, in this study, climate factors emerged as the main drivers of wild‐bee abundance and richness. For wild‐bee communities in spring and summer/fall, temperature and precipitation were more important predictors than landscape composition, landscape quality, or topography. However, relationships varied substantially between wild‐bee genera and functional groups. In the Northeast USA, past trends and future predictions show a changing climate with warmer winters, more intense precipitation in winter and spring, and longer growing seasons with higher maximum temperatures. In almost all of our analyses, these conditions were associated with lower abundance of wild bees. Wild‐bee richness results were more mixed, including neutral and positive relationships with predicted temperature and precipitation patterns. Thus, in this region and undoubtedly more broadly, changing climate poses a significant threat to wild‐bee communities.

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Section: Introductionmentioning

confidence: 99%

Wild bees as winners and losers: Relative impacts of landscape composition, quality, and climate

Kammerer

Goslee

Douglas

et al. 2021

Global Change Biology

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“…The results and approach of our study may be helpful for the prevention and early detection of invasive insects, namely bees, in determining suitable niches outside of their native range. The development of SDMs is a useful approach in determining how bees and other insects will expand outside of their native niche [ 1 , 45 , 59 ]. However, it is also clear that there are limitations to SDMs in predicting the invasive spread of bees, as evidenced by data collected during ground surveys of invasive A. manicatum in northeastern North America [ 60 ].…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, there are other potential issues such as environmental variables used in the analysis, modeling algorithm, GCMs, collinearity, model complexity, model evaluation method, and threshold values to produce binary maps that can influence model outcomes. In addition, future land use (e.g., road building) change scenarios can also alter future species distributions [ 1 , 17 ]. Improvements of models based on natural history and ecological information and increased availability of specimen data are crucial issues for enhancing the predictive accuracy of the models [ 60 ].…”

Section: Discussionmentioning

confidence: 99%

“…Biological invasions are one of the most severe threats to biodiversity and natural resources. Climate change is predicted to increase the risk of biological invasions by increasing climatically suitable regions for invasive species [ 1 ]. The intersection of climate change and invasive species is considered to be one of the main factors likely to impact bee diversity, together with land use change, exposure to pesticides, and pathogen spillover [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

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Ensemble Models Predict Invasive Bee Habitat Suitability Will Expand under Future Climate Scenarios in Hawai’i

Koch

2021

Insects

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Climate change is predicted to increase the risk of biological invasions by increasing the availability of climatically suitable regions for invasive species. Endemic species on oceanic islands are particularly sensitive to the impact of invasive species due to increased competition for shared resources and disease spread. In our study, we used an ensemble of species distribution models (SDM) to predict habitat suitability for invasive bees under current and future climate scenarios in Hawai’i. SDMs projected on the invasive range were better predicted by georeferenced records from the invasive range in comparison to invasive SDMs predicted by records from the native range. SDMs estimated that climatically suitable regions for the eight invasive bees explored in this study will expand by ~934.8% (±3.4% SE). Hotspots for the invasive bees are predicted to expand toward higher elevation regions, although suitable habitat is expected to only progress up to 500 m in elevation in 2070. Given our results, it is unlikely that invasive bees will interact directly with endemic bees found at >500 m in elevation in the future. Management and conservation plans for endemic bees may be improved by understanding how climate change may exacerbate negative interactions between invasive and endemic bee species.

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“…However, our results show that the composition of bee assemblages in forests with secondary growth (regenerating forests) can be affected by climatic variations of microenvironments, even in fragments close to forest remnants, and this fact can be evidenced by the important influence of the climatic conditions in the composition of the bee communities studied here. About this issue, we can highlight that in the regenerating forest, the climatic variations were more prominent than in the mature forest with higher air temperatures, wind speed and sunlight, and even despite the significant effects of microclimates on the composition of bee assemblages between forests, most species appear to forage in all micro-environments, as the same 17 species of bees were sampled from both forests (see Appendix 1, Fig 6), no restrictions on microclimate variation, and this may indicate that some wild bee taxa can better cope with local climatic changes and disturbances (Switanek et al, 2017;Hunt et al, 2018;Dew et al, 2019;Sobreiro et al, 2019). In addition, other species of bees have indicated restrictions to more conserved or altered sites, being that 18 species of bees were exclusively sampled in the mature forest, while 5 species were exclusive in the regenerating forest (see Appendix 1).…”

Section: Discussionmentioning

confidence: 99%

Recover and They’ll Come: Flower Visiting Bees Benefit from the Continuous of Micro-Environments Set by Regenerating Forest Fragments

et al. 2021

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Forest habitats are important sources of food and nesting resources for pollinators, primarily in urban areas and landscapes with intense agricultural activity. The forest fragmentation and environmental changes occurring in these green refuges are known to impose survival challenges to pollinating bees, leading to species loss. However, it is not well known how the species of bees that visit flowers are distributed in forest micro-environments. To fill this gap, we sampled flower visiting bees in a continuous forest matrix with micro-environments of two forest types (mature and regenerating forest). We examined how the local environmental changes and climatic conditions affect the composition and uniformity of bee communities in the different micro-environments. Our results indicated that both abundance and richness were similar between forest types studied here, however climatic conditions and plant flowering patterns affect the composition of bees. Thus, our results demonstrated that the continuous micro-environments can favor floral visits and the reintegration of bee communities, and still, that this strategy can be used to minimize the impacts of environmental changes at local scales.

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Range expansion of an already widespread bee under climate change

Cited by 27 publications

References 80 publications

Wild bees as winners and losers: Relative impacts of landscape composition, quality, and climate

Wild bees as winners and losers: Relative impacts of landscape composition, quality, and climate

Ensemble Models Predict Invasive Bee Habitat Suitability Will Expand under Future Climate Scenarios in Hawai’i

Recover and They’ll Come: Flower Visiting Bees Benefit from the Continuous of Micro-Environments Set by Regenerating Forest Fragments

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