Road mortality contributes to the evolution of an urban-rural cline in squirrel coat color DOI Creative Commons
Adam F. Parlin, Bradley J. Cosentino, Richard M. Lehtinen

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 11, 2025

Abstract Cities impose unique selection pressures on wildlife and generate clines in phenotypic traits along urban-rural gradients. Roads, as a ubiquitous feature of human dominated landscapes, are significant source direct mortality for wildlife, but their role selective force producing trait variation is not known. This study tested the hypothesis that roads influence natural coat color eastern gray squirrel (Sciurus carolinensis), species which vehicular collisions mortality. has two distinct colors: morph common all areas, melanic more prevalent urban areas than rural ones. We conducted standardized road cruise surveys to compare proportion each among road-killed living squirrels an urbanization gradient Syracuse, New York, USA. also examined prevalence off surfaces range-wide compilation > 100,000 photographs S. carolinensis. The melanism Syracuse was negatively related distance from city center, whereas there no cline squirrels. underrepresented by up 30% gradient. found image database. Our highlights important cause can contribute maintenance clines.

Language: Английский

Urban Environments Promote Adaptation to Multiple Stressors DOI Creative Commons
Elizabeta Briski,

Louisa Langrehr,

Syrmalenia G. Kotronaki

et al.

Ecology Letters, Journal Year: 2025, Volume and Issue: 28(2)

Published: Feb. 1, 2025

ABSTRACT Anthropogenic activities have drastically changed environmental conditions worldwide, negatively impacting biodiversity and ecosystem services. At the same time, majority of human population lives in urban areas that are greatly altered from natural habitats. Nevertheless, many species thrive these environments. To improve our knowledge evolution adaptation anthropogenically impacted habitats, we conducted widest series stress experiments to date with three marine taxa: one mussel two gammarid species. We compared intraspecific populations protected human‐altered habitats determine their tolerance salinity, temperature partial pressure CO 2 water (pCO ) regimes. Populations typically outperformed habitat populations, individuals most being robust. propose adapting life disturbed environments—this concurrently promotes more resilient rescue but potentially confers increased invasion risk non‐native

Language: Английский

Citations

2
Microbial Community Structure and Causal Analysis. in Sediments of Shallow Eutrophic Freshwater Lakes. Under Heavy Metal Compound Pollution DOI

Yang Chen,

Yaofei Xu,

Aidong Ruan

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137135 - 137135

Published: Jan. 7, 2025

Language: Английский

Citations

1
Road mortality contributes to the evolution of an urban-rural cline in squirrel coat color DOI Creative Commons
Adam F. Parlin, Bradley J. Cosentino, Richard M. Lehtinen

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 11, 2025

Abstract Cities impose unique selection pressures on wildlife and generate clines in phenotypic traits along urban-rural gradients. Roads, as a ubiquitous feature of human dominated landscapes, are significant source direct mortality for wildlife, but their role selective force producing trait variation is not known. This study tested the hypothesis that roads influence natural coat color eastern gray squirrel (Sciurus carolinensis), species which vehicular collisions mortality. has two distinct colors: morph common all areas, melanic more prevalent urban areas than rural ones. We conducted standardized road cruise surveys to compare proportion each among road-killed living squirrels an urbanization gradient Syracuse, New York, USA. also examined prevalence off surfaces range-wide compilation > 100,000 photographs S. carolinensis. The melanism Syracuse was negatively related distance from city center, whereas there no cline squirrels. underrepresented by up 30% gradient. found image database. Our highlights important cause can contribute maintenance clines.

Language: Английский

Citations

1