Temporal variation in translocated Isle Royale wolf diet

Ecology and Evolution, Journal Year: 2023, Volume and Issue: 13(3)

Published: March 1, 2023

Abstract Wolves ( Canis lupus ) can exert top‐down pressure and shape ecological communities through the predation of ungulates beavers (Castor spp.). Therefore, understanding wolf foraging is critical to estimating their ecosystem‐level effects. Specifically, if wolves are consumers that optimize tradeoffs between cost benefits prey acquisition, changes in these factors may lead prey‐switching or negative‐density dependent selection with potential consequences for community stability. For wolves, affecting include vulnerability, risk, reward, availability, which vary temporally. We described diet by frequency occurrence percent biomass characterized using remains found scats on Isle Royale National Park, Michigan, USA, during May–October 2019 2020. used logistic regression estimate consumption over time. predicted temporal variation (availability and/or vulnerability) such as adult moose Alces alces ), calf moose, beaver Castor canadensis diets. analyzed 206 identified 62% beaver, 26% 12% other species (birds, smaller mammals, wolves). Adult were more likely occur May when poor condition following winter. The calves peaked June–mid‐July birth but before vulnerability declined they matured. By contrast, scat did not change time, reflecting importance low‐handling items recently introduced lone paired wolves. Our results demonstrate responsive costs. Temporal fluctuation influence wolves' role respond increased risk altering breeding behavior.

Language: Английский

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Habitatgeschiktheid voor de wolf in Nederland : een modelanalyse

Published: Jan. 1, 2024

Multiple packs of wolfs have settled recently in the Netherlands. Question is how large potential distribution area can be near future and what corresponding population number is. This report answers these questions based on a data driven model which assess habitat suitability.

Language: Английский

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Wolf and wild boar in the Alps: trophic, temporal and spatial interactions in an Alpine protected area

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: 55, P. e03253 - e03253

Published: Oct. 11, 2024

Language: Английский

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Recreational trail use alters mammal diel and space use during and after COVID-19 restrictions in a U.S. national park.

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: unknown, P. e03363 - e03363

Published: Dec. 1, 2024

Language: Английский

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