Characteristics and influencing factors of taxonomic and functional diversity of butterflies in urban green spaces

Urban forestry & urban greening, Год журнала: 2025, Номер unknown, С. 128662 - 128662

Опубликована: Янв. 1, 2025

Язык: Английский

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Annual variation across functional traits: The effects of precipitation and land use on four wild bee species

Ecological Entomology, Год журнала: 2025, Номер unknown

Опубликована: Май 2, 2025

Abstract Understanding the impacts of urbanization and climate change on organisms has become increasingly critical in ecology conservation as these anthropogenic stressors negatively impact wildlife biodiversity, especially pollinators such bees. We analysed demographic (abundance sex ratio) morphological (body size wing wear) responses to inter‐annual variation four common wild bee species across an urban gradient Toronto, Canada. observed more significant shifts demography with precipitation than urbanization, diverse patterns depending species. The drier active season saw a decrease abundance for Agapostemon virescens Ceratina calcarata , whereas Bombus impatiens Xenoglossa pruinosa increased when compared previous year. Wetter seasons resulted smaller body sizes greater wear all examined. For larger bees ( A. B. X. ), increasing significantly females only foraging effort reduced intensity increased. small, cavity‐nesting bee, C. exhibited urbanization. Moderate better supported most assemblages morphology, suggesting that moderate land use provides green spaces adequate resources

Язык: Английский

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Crop-specialized pollinator drives bee and floral community response to urbanization on small squash farms

Urban Ecosystems, Год журнала: 2025, Номер 28(3)

Опубликована: Май 6, 2025

Язык: Английский

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New genomic resources inform transcriptomic responses to heavy metal toxins in the common Eastern bumble bee Bombus impatiens

BMC Genomics, Год журнала: 2024, Номер 25(1)

Опубликована: Ноя. 19, 2024

Abstract Background The common Eastern bumble bee Bombus impatiens is native to North America and the main commercially reared pollinator in Americas. There has been extensive research on this species related its social biology, applied pollination, genetics. genome of was previously sequenced using short-read technology, but recent technological advances provide an opportunity for substantial improvements. This agricultural urban environments, heavy metal contaminants produced by industrial processes can negatively impact it. To begin identify possible mechanisms underlying responses these toxins, we used RNA-sequencing examine how exposure a cocktail four metals at field-realistic levels from areas affected B. worker gene expression. Results PacBio long-read sequencing resulted 544x coverage genome, HiC technology map chromatin contacts. Using Juicer manual curation, scaffolded into 18 pseudomolecules, representing high quality, chromosome-level assembly. size 266.6 Mb BRAKER3 annotation 13,938 annotated genes. show completeness, with ≥ 96% conserved Eukaryota Hymenoptera genes present both assembly RNA exposed workers revealed 603 brain 34 fat body differentially expressed In brain, had biological functions chaperone activity protein folding. Conclusions Our data represent large improvement genomic resources important model species—with 10% more than available, high-quality chromosomes, expected karyotype species. new added 777 Altered expression response suggests mechanism toxins are impacting health, specifically altering folding brain. Overall, useful as general quality resource species, insight tissue-specific toxicological bees metals.

Язык: Английский

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Adapting to change: Bee pollinator signatures in anthropized environments

Current Opinion in Insect Science, Год журнала: 2024, Номер unknown, С. 101297 - 101297

Опубликована: Ноя. 1, 2024

Язык: Английский

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