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Variation in flower morphology associated with higher bee diversity in urban green spaces

Author(s): Sinno S; MacInnis G; Lessard JP; Ziter CD;

Urbanization is a leading threat to biodiversity, but scientifically informed management of urban ecosystems can mitigate negative impacts. For wild bees, which are declining worldwide, careful consideration of flower choice in public and private green spaces could help preserve their diversity. While floral density and species richness are both linked to ...

Article GUID: 39609370


Global assessment of effective population sizes: Consistent taxonomic differences in meeting the 50/500 rule

Author(s): Clarke SH; Lawrence ER; Matte JM; Gallagher BK; Salisbury SJ; Michaelides SN; Koumrouyan R; Ruzzante DE; Grant JWA; Fraser DJ;

Effective population size (Ne) is a particularly useful metric for conservation as it affects genetic drift, inbreeding and adaptive potential within populations. Current guidelines recommend a minimum Ne of 50 and 500 to avoid short-term inbreeding and to preserve long-term adaptive potential re ...

Article GUID: 38613250


Reciprocal inhibition and competitive hierarchy cause negative biodiversity-ecosystem function relationships

Author(s): D' Andrea R; Khattar G; Koffel T; Frans VF; Bittleston LS; Cuellar-Gempeler C;

The relationship between biodiversity and ecosystem function (BEF) captivates ecologists, but the factors responsible for the direction of this relationship remain unclear. While higher ecosystem functioning at higher biodiversity levels ('positive BEF') is not universal in nature, negative BEF relationships seem puzzlingly rare. Here, we develop ...

Article GUID: 38193391


Microgeographic variation in demography and thermal regimes stabilize regional abundance of a widespread freshwater fish

Author(s): Gallagher BK; Fraser DJ;

Predicting the persistence of species under climate change is an increasingly important objective in ecological research and management. However, biotic and abiotic heterogeneity can drive asynchrony in population responses at small spatial scales, complicating species-level assessments. For widely distributed species consisting of many fragmented populat ...

Article GUID: 38071739


Variation in a Darwin Wasp (Hymenoptera: Ichneumonidae) Community along an Elevation Gradient in a Tropical Biodiversity Hotspot: Implications for Ecology and Conservation

Author(s): Flinte V; Pádua DG; Durand EM; Hodgin C; Khattar G; da Silveira LFL; Fernandes DRR; Sääksjärvi IE; Monteiro RF; Macedo MV; Mayhew PJ;

Understanding how biodiversity varies from place to place is a fundamental goal of ecology and an important tool for halting biodiversity loss. Parasitic wasps (Hymenoptera) are a diverse and functionally important animal group, but spatial variation in their diversity is poorly understood. We su ...

Article GUID: 37999060


Call to action: equity, diversity, and inclusion in emergency medicine resident physician selection

Author(s): Primavesi R; Patocka C; Burcheri A; Coutin A; Elhalwi AM; Ali A; Pandya A; Gagné A; Johnston B; Thoma B; LeBlanc C; Fovet F; Gallinger J; Mohadeb J; Ragheb M; Dong S; Smith S; Oyedokun T; Newmarch T; Knight V; McColl T;

Objectives: This call to action seeks to improve emergency care in Canada for equity-deserving communities, enabled by equitable representation among emergency physicians nationally. Specifically, this work describes current resident selection processes and makes recommendations to enhance the eq ...

Article GUID: 37368231


Macrogenetics reveals multifaceted influences of environmental variation on vertebrate population genetic diversity across the Americas

Author(s): Lawrence ER; Pedersen EJ; Fraser DJ;

The broad scale distribution of population-specific genetic diversity (GDP ) across taxa remains understudied relative to species diversity gradients, despite its relevance for systematic conservation planning. We used nuclear DNA data collected from 3678 vertebrate populations across the Americas to assess the role of environmental and spatial variables ...

Article GUID: 37365672


Exploring a case for education about sexual and gender minorities in postgraduate emergency medicine training: forming recommendations for change

Author(s): Burcheri A; Coutin A; Bigham BL; Kruse MI; Lien K; Lim R; MacCormick H; Morris J; Ng V; Primiani N; Odorizzi S; Poirier V; Upadhye S; Primavesi R;

Social medicine and health advocacy curricula are known to be uncommon in postgraduate medical education. As justice movements work to unveil the systemic barriers experienced by sexual and gender minority (SGM) populations, it is imperative that the emergency medicine (EM) community progress in ...

Article GUID: 37310186


Decoupled responses of biodiversity facets driven from anuran vulnerability to climate and land-use changes

Author(s): Ceron K; Sales LP; Santana DJ; Pires MM;

Biodiversity loss not only implies the loss of species but also entails losses in other dimensions of biodiversity, such as functional, phylogenetic and interaction diversity. Yet, each of those facets of biodiversity may respond differently to extinctions. Here, we examine how extinction, driven by climate and land-use changes may affect those different ...

Article GUID: 36967645


Identifying climate change refugia for South American biodiversity

Author(s): Sales LP; Pires MM;

Refugia-based conservation strategies offer long-term effectiveness and minimize uncertainty on strategies for climate change adaptation. Here, we use distribution modelling to identify climate change refugia for 617 terrestrial mammals and quantify the role of protected areas in safeguarding these zones across South America. Moist tropical forests locate ...

Article GUID: 36919472


Decline in wild bee species richness associated with honey bee (Apis mellifera L.) abundance in an urban ecosystem

Author(s): MacInnis G; Normandin E; Ziter CD;

The spatial heterogeneity of urban landscapes, relatively low agrochemical use, and species-rich floral communities often support a surprising diversity of wild pollinators in cities. However, the management of Western honey bees (Apis mellifera L.) in urban areas may represent a new threat to wild bee communities. Urban beekeeping is commonly perceived a ...

Article GUID: 36755869


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