DOI: 10.1098/rspb.2019.2497
论文题名: Continent-wide effects of urbanization on bird and mammal genetic diversity
作者: Schmidt C. ; Domaratzki M. ; Kinnunen R.P. ; Bowman J. ; Garroway C.J.
刊名: Proceedings of the Royal Society B: Biological Sciences
ISSN: 9628452
出版年: 2020
卷: 287, 期: 1920 语种: 英语
英文关键词: Anthropocene
; Data synthesis
; Genetic biodiversity
; Habitat fragmentation
; Human disturbance
; Urban evolution
Scopus关键词: Anthropocene
; anthropogenic effect
; data set
; effective population size
; genetic variation
; habitat fragmentation
; inbreeding
; mammal
; population density
; rural-urban comparison
; urbanization
; Animalia
; Aves
; Mammalia
; Vertebrata
; adult
; article
; biodiversity
; bird
; clinical article
; data synthesis
; effective population size
; environmental change
; female
; filtration
; genetic variability
; habitat fragmentation
; human
; human experiment
; inbreeding
; male
; mammal
; nonhuman
; urbanization
英文摘要: Urbanization and associated environmental changes are causing global declines in vertebrate populations. In general, population declines of the magnitudes now detected should lead to reduced effective population sizes for animals living in proximity to humans and disturbed lands. This is a cause for concern because effective population sizes set the rate of genetic diversity loss due to genetic drift, the rate of increase in inbreeding and the efficiency with which selection can act on beneficial alleles. We predicted that the effects of urbanization should decrease effective population size and genetic diversity, and increase population-level genetic differentiation. To test for such patterns, we repurposed and reanalysed publicly archived genetic datasets for North American birds and mammals. After filtering, we had usable raw genotype data from 85 studies and 41 023 individuals, sampled from 1008 locations spanning 41 mammal and 25 bird species. We used census-based urban-rural designations, human population density and the Human Footprint Index as measures of urbanization and habitat disturbance. As predicted, mammals sampled in more disturbed environments had lower effective population sizes and genetic diversity, and were more genetically differentiated from those in more natural environments. There were no consistent relationships detectable for birds. This suggests that, in general, mammal populations living near humans may have less capacity to respond adaptively to further environmental changes, and be more likely to suffer from effects of inbreeding. © 2020 The Author(s) Published by the Royal Society. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159303
Appears in Collections: 气候变化与战略
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作者单位: Department Biological Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada; Department of Computer Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada; Environmental and Life Sciences Graduate Program, Trent University, Peterborough, ON K9 L 0G2, Canada; Wildlife Research and Monitoring Section, Ontario Ministry of Natural Resources and Forestry, Peterborough, ON K9 J 8M5, Canada
Recommended Citation:
Schmidt C.,Domaratzki M.,Kinnunen R.P.,et al. Continent-wide effects of urbanization on bird and mammal genetic diversity[J]. Proceedings of the Royal Society B: Biological Sciences,2020-01-01,287(1920)