DOI: 10.1016/j.scitotenv.2019.135799
论文题名: Population dynamics of small endotherms under global change: Greater white-toothed shrews Crocidura russula in Mediterranean habitats
作者: Torre I. ; Bastardas-Llabot J. ; Arrizabalaga A. ; Díaz M.
刊名: Science of the Total Environment
ISSN: 489697
出版年: 2020
卷: 705 语种: 英语
英文关键词: Climate change
; Density-dependence
; Habitat
; Long- vs. short-term effects
; Predation
Scopus关键词: Dynamics
; Ecosystems
; Land use
; Population dynamics
; Population statistics
; Reforestation
; Density dependence
; Habitat
; Increasing temperatures
; Mediterranean region
; Predation
; Relative air humidities
; Short-term effects
; Short-term variations
; Climate change
; rain
; abundance
; age structure
; climate change
; global change
; growth rate
; habitat structure
; Mediterranean environment
; population density
; population dynamics
; predation
; small mammal
; adult
; age distribution
; Article
; autumn
; climate change
; climate resilience
; Crocidura russula
; environmental factor
; environmental protection
; environmental temperature
; global change
; growth rate
; habitat quality
; habitat selection
; humidity
; juvenile animal
; land use
; nonhuman
; population abundance
; population growth
; predation risk
; priority journal
; reproductive behavior
; seasonal population dynamics
; seasonal variation
; shrew
; Southern Europe
; species habitat
; spring
; summer
; Mediterranean Region
; Crocidura
; Crocidura russula
英文摘要: Small endotherms would be especially exposed to main global change drivers (habitat and climate changes) but would also be able to withstand them by adjusting population dynamics locally to changing climate- and habitat-driven food and predation conditions. We analyse the relative importance of changes in climate (mean and variability, including relevant time-lags) and habitat conditions on the abundance, age structure and growth rate of Mediterranean populations of a small endotherm, the greater white-toothed shrew Crocidura russula, along a 10-year period (2008–2017). Habitat type and season were the key factors shaping shrew population dynamics, which showed consistent peak numbers in open habitats in autumn, after the spring-summer reproductive period. Significant increases in aridity (increasing temperature and decreasing rainfall) along the study period did not explain variation in shrew numbers, although short-term variations in abundance were negatively related to relative air humidity and temperature over three last months prior to the surveys. Overall, ongoing climate change have not yet affected shrew population dynamics in its core areas of the Mediterranean region, in spite of expectations based on climate change rate in this region and small endotherm sensitivity to these changes. Reliance on open habitats with lower predation pressure would explain the resilience of shrew populations to climate change. However, current trends of land use change (land abandonment and afforestation) threaten Mediterranean open habitats, so that resilience would not last for long if these trends are not counteracted. © 2019 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159199
Appears in Collections: 气候变化与战略
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作者单位: Museu de Ciències Naturals de Granollers, Francesc Macià 51, Granollers, 08402, Spain; Biogeography and Global Change Department, National Museum of Natural Sciences, Spanish National Research Council, BGC-MNCN-CSIC, C/Serrano 115 Bis, Madrid, E-28006, Spain
Recommended Citation:
Torre I.,Bastardas-Llabot J.,Arrizabalaga A.,et al. Population dynamics of small endotherms under global change: Greater white-toothed shrews Crocidura russula in Mediterranean habitats[J]. Science of the Total Environment,2020-01-01,705