A contemporary survey of bumble bee diversity across the state of California

Fisher, Kenneth C.; Watrous, Kristal M.; Williams, Neal M.; Richardson, Leif L.; Woodard, S. Hollis

doi:10.1002/ece3.8505

Cited by 3 publications

(2 citation statements)

References 51 publications

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“…As one of the most common bees in the western U.S.A., B. vosnesenskii is an important pollinator in natural ecosystems as well as agricultural systems in California and Oregon (Fisher, Watrous, Williams, Richardson, & Woodard, 2022; Greenleaf & Kremen, 2006). Thus, ensuring the health of B. vosnesenskii populations in a changing environment is of great interest.…”

Section: Discussionmentioning

confidence: 99%

Whole genome analyses reveal weak signatures of population structure and environmentally associated local adaptation in an important North American pollinator, the bumble beeBombus vosnesenskii

Heraghty

Lozier

Jackson

2023

Preprint

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Studies of species that experience environmental heterogeneity across their distributions have become an important tool for understanding mechanisms of adaptation and predicting responses to climate change. We examine population structure, demographic history, and environmentally associated genomic variation in Bombus vosnesenskii, a common bumble bee in the western U.S.A., using whole genome resequencing of populations distributed across a broad range of latitudes and elevations. We find that B. vosnesenskii exhibits minimal population structure and weak isolation by distance, confirming results from previous studies using other molecular marker types. Similarly, demographic analyses with Sequentially Markovian Coalescent (SMC) models suggest that minimal population structure may have persisted since the last interglacial period, with genomes from different parts of the species range showing similar historical effective population size (Ne) trajectories and relatively small fluctuations through time. Redundancy analysis revealed a small amount of genomic variation explained by bioclimatic variables, and environmental association analysis with latent factor mixed modeling (LFMM2) identified few outlier loci that were sparsely distributed throughout the genome. Some outlier loci were in genes with known regulatory relationships, suggesting the possibility of weak selection, although compared to other species examined with similar approaches, evidence for extensive local adaptation signatures in the genome was relatively weak. Overall, results indicate Bombus vosnesenskii is an example of a generalist with a high degree of flexibility in its environmental requirements that may ultimately benefit the species under periods of climate change.

show abstract

Section: Discussionmentioning

confidence: 99%

Whole genome analyses reveal weak signatures of population structure and environmentally associated local adaptation in an important North American pollinator, the bumble beeBombus vosnesenskii

Heraghty

Lozier

Jackson

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…As one of the most common bees in the western USA, B. vosnesenskii is an important pollinator in natural ecosystems as well as agricultural systems in California and Oregon (Fisher et al, 2022; Greenleaf & Kremen, 2006). Thus, ensuring the health of B. vosnesenskii populations in a changing environment is of great interest.…”

Section: Discussionmentioning

confidence: 99%

Whole genome analyses reveal weak signatures of population structure and environmentally associated local adaptation in an important North American pollinator, the bumble bee Bombus vosnesenskii

Heraghty,

Jackson,

Lozier

2023

Molecular Ecology

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Studies of species that experience environmental heterogeneity across their distributions have become an important tool for understanding mechanisms of adaptation and predicting responses to climate change. We examine population structure, demographic history and environmentally associated genomic variation in Bombus vosnesenskii, a common bumble bee in the western USA, using whole genome resequencing of populations distributed across a broad range of latitudes and elevations. We find that B. vosnesenskii exhibits minimal population structure and weak isolation by distance, confirming results from previous studies using other molecular marker types. Similarly, demographic analyses with Sequentially Markovian Coalescent models suggest that minimal population structure may have persisted since the last interglacial period, with genomes from different parts of the species range showing similar historical effective population size trajectories and relatively small fluctuations through time. Redundancy analysis revealed a small amount of genomic variation explained by bioclimatic variables. Environmental association analysis with latent factor mixed modelling (LFMM2) identified few outlier loci that were sparsely distributed throughout the genome and although a few putative signatures of selective sweeps were identified, none encompassed particularly large numbers of loci. Some outlier loci were in genes with known regulatory relationships, suggesting the possibility of weak selection, although compared with other species examined with similar approaches, evidence for extensive local adaptation signatures in the genome was relatively weak. Overall, results indicate B. vosnesenskii is an example of a generalist with a high degree of flexibility in its environmental requirements that may ultimately benefit the species under periods of climate change.

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Comparing species richness and abundance of bumble bees between urban and natural areas using a photographic survey approach

MacLeod,

Silva-Opps,

Sanchez

2024

Front. Ecol. Evol.

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Bumble bees are essential pollinators that provide critical ecosystem services yet, studies are documenting global species declines while recognizing those declines may be understated due to insufficient baseline data. This study investigates bumble bee species richness and abundance across urban and natural sites in Prince Edward Island, Canada, focusing on Charlottetown (urban) and Prince Edward Island National Park (natural). We conducted fieldwork in August and September 2019 using a non-invasive photographic survey technique. We used published keys and sought feedback from citizen science platforms like iNaturalist and Bumble Bee Watch to verify species identification. Our results revealed nine bumble bee species, with Bombus impatiens being the most abundant and Bombus perplexus the rarest. Species richness was higher in natural sites, while urban sites demonstrated moderate levels of bumble bee diversity. Additionally, our findings suggest that sites containing a mix of natural and human-cultivated plant types, predominantly found in our urban study sites, may support higher diversity and evenness levels than those of homogenized plant types (natural or human-cultivated). This research illustrates the practicality of photographic surveys to document the species richness and diversity of bumble bees while avoiding disturbance to populations in urban and natural habitats of Prince Edward Island.

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A contemporary survey of bumble bee diversity across the state of California

Cited by 3 publications

References 51 publications

Whole genome analyses reveal weak signatures of population structure and environmentally associated local adaptation in an important North American pollinator, the bumble beeBombus vosnesenskii

Whole genome analyses reveal weak signatures of population structure and environmentally associated local adaptation in an important North American pollinator, the bumble beeBombus vosnesenskii

Whole genome analyses reveal weak signatures of population structure and environmentally associated local adaptation in an important North American pollinator, the bumble bee Bombus vosnesenskii

Comparing species richness and abundance of bumble bees between urban and natural areas using a photographic survey approach

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