Climatic niche and range shifts of grey squirrels (Sciurus carolinensis Gmelin) in Europe: An invasive pest displacing native squirrels.

Autor: Yang R; College of Agriculture and Biological Science, Dali University, Dali, China.; Research Center for Agroecology in Erhai Lake Watershed of Dali University, Dali, China.; Cangshan Forest Ecosystem Observation and Research Station of Yunnan Province, Dali University, Dali, China., Yu X; College of Agriculture and Biological Science, Dali University, Dali, China.; Research Center for Agroecology in Erhai Lake Watershed of Dali University, Dali, China.; Cangshan Forest Ecosystem Observation and Research Station of Yunnan Province, Dali University, Dali, China., Nie P; College of Agriculture and Biological Science, Dali University, Dali, China.; Research Center for Agroecology in Erhai Lake Watershed of Dali University, Dali, China.; Cangshan Forest Ecosystem Observation and Research Station of Yunnan Province, Dali University, Dali, China., Cao R; College of Agriculture and Biological Science, Dali University, Dali, China.; Research Center for Agroecology in Erhai Lake Watershed of Dali University, Dali, China.; Cangshan Forest Ecosystem Observation and Research Station of Yunnan Province, Dali University, Dali, China., Feng J; College of Agriculture and Biological Science, Dali University, Dali, China.; Research Center for Agroecology in Erhai Lake Watershed of Dali University, Dali, China.; Cangshan Forest Ecosystem Observation and Research Station of Yunnan Province, Dali University, Dali, China., Hu X; College of Agriculture and Biological Science, Dali University, Dali, China.; Research Center for Agroecology in Erhai Lake Watershed of Dali University, Dali, China.; Cangshan Forest Ecosystem Observation and Research Station of Yunnan Province, Dali University, Dali, China.
Jazyk: angličtina
Zdroj: Pest management science [Pest Manag Sci] 2023 Oct; Vol. 79 (10), pp. 3731-3739. Date of Electronic Publication: 2023 May 30.
DOI: 10.1002/ps.7554
Abstrakt: Background: As an invasive pest from North America, grey squirrels (GSs; Sciurus carolinensis Gmelin) are displacing native squirrels in Europe. However, the climatic niche and range dynamics of GSs in Europe remain largely unknown. Through niche and range dynamic models, we investigated climatic niche and range shifts between introduced GSs in Europe and native GSs in North America.
Results: GSs in North America can survive in more variable climatic conditions and have much wider climatic niche breadth than do GSs in Europe. Based on climate, the potential range of GSs in Europe included primarily Britain, Ireland, and Italy, whereas the potential range of GSs in North America included vast regions of western and southern Europe. If GSs in Europe could occupy the same climatic niche space and potential range as GSs in North America, they would occupy an area ca. 2.45 times the size of their current range. The unfilling ranges of GSs in Europe relative to those of GSs in North America were primarily in France, Italy, Spain, Croatia, and Portugal.
Conclusion: Our observations implied that GSs in Europe have significant invasion potential, and that range projections based on their occurrence records in Europe may underestimate their invasion risk. Given that small niche shifts between GSs in Europe and in North America could lead to large range shifts, niche shifts could be a sensitive indicator in invasion risk assessment. The identified unfilling ranges of the GS in Europe should be prioritized in combating GS invasions in the future. © 2023 Society of Chemical Industry.
(© 2023 Society of Chemical Industry.)
Databáze: MEDLINE
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