DOI: 10.1111/ele.13844
论文题名: Reef communities show predictable undulations in linear abundance size spectra from copepods to sharks
作者: Heather F.J. ; Stuart-Smith R.D. ; Blanchard J.L. ; Fraser K.M. ; Edgar G.J.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
语种: 英语
中文关键词: body size
; epifauna
; power law
; secondary structure
; sine curve
; sinusoidal
; size spectrum
; size-based
; UVC sampling bias
英文摘要: Among the more widely accepted general hypotheses in ecology is that community relationships between abundance and body size follow a log-linear size spectrum, from the smallest consumers to the largest predators (i.e. ‘bacteria to whales’). Nevertheless, most studies only investigate small subsets of this spectrum, and note that extreme size classes in survey data deviate from linear expectations. In this study, we fit size spectra to field data from 45 rocky and coral reef sites along a 28° latitudinal gradient, comprising individuals from 0.125 mm to 2 m in body size. We found that 96% of the variation in abundance along this ‘extended’ size gradient was described by a single linear function across all sites. However, consistent ‘wobbles’ were also observed, with subtle peaks and troughs in abundance along the spectrum, which varied with sea temperature, as predicted by theory relating to trophic cascades. © 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/166845
Appears in Collections: 气候变化与战略
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作者单位: Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia
Recommended Citation:
Heather F.J.,Stuart-Smith R.D.,Blanchard J.L.,et al. Reef communities show predictable undulations in linear abundance size spectra from copepods to sharks[J]. Ecology Letters,2021-01-01