DOI: 10.1111/ele.13743
论文题名: Rapid Anthropocene realignment of allometric scaling rules
作者: Santini L. ; Isaac N.J.B.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期: 7 起始页码: 1318
结束页码: 1327
语种: 英语
中文关键词: energy-equivalence rule
; global change
; mammals
; population density
; size-density relationship
英文关键词: Mammalia
; animal
; biodiversity
; body size
; mammal
; population density
; Animals
; Biodiversity
; Body Size
; Mammals
; Population Density
英文摘要: The negative relationship between body size and population density in mammals is often interpreted as resulting from energetic constraints. In a global change scenario, however, this relationship might be expected to change, given the size-dependent nature of anthropogenic pressures and vulnerability to extinction. Here we test whether the size-density relationship (SDR) in mammals has changed over the last 50 years. We show that the relationship has shifted down and became shallower, corresponding to a decline in population density of 31–73%, for the largest and smallest mammals, respectively. However, the SDRs became steeper in some groups (e.g. carnivores) and shallower in others (e.g. herbivores). The Anthropocene reorganisation of biotic systems is apparent in macroecological relationships, reinforcing the notion that biodiversity pattens are contingent upon conditions at the time of investigation. We call for an increased attention to the role of global change on macroecological inferences. © 2021 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166923
Appears in Collections: 气候变化与战略
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作者单位: Department of Biology and Biotechnologies "Charles Darwin", Sapienza Università di Roma, Rome, Italy; National Research Council, Institute of Research on Terrestrial Ecosystems (CNR-IRET), Monterotondo (Rome), Italy; UK Centre for Ecology & Hydrology, Wallingford, United Kingdom
Recommended Citation:
Santini L.,Isaac N.J.B.. Rapid Anthropocene realignment of allometric scaling rules[J]. Ecology Letters,2021-01-01,24(7)