DOI: 10.1111/ele.13563
论文题名: Geometry of the ideal free distribution: individual behavioural variation and annual reproductive success in aggregations of a social ungulate
作者: Bonar M. ; Lewis K.P. ; Webber Q.M.R. ; Dobbin M. ; Laforge M.P. ; Vander Wal E.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期: 9 起始页码: 1360
结束页码: 1369
语种: 英语
中文关键词: Aggregation
; calf survival
; caribou
; geometry of the selfish herd
; ideal free distribution
; nearest neighbour
; repeatability
; reproductive success
; social environment
英文关键词: Rangifer tarandus
; Ungulata
; animal
; ecosystem
; population dynamics
; predation
; reindeer
; reproduction
; Animals
; Ecosystem
; Population Dynamics
; Predatory Behavior
; Reindeer
; Reproduction
英文摘要: Variation in social environment can mitigate risks and rewards associated with occupying a particular patch. We aim to integrate Ideal Free Distribution (IFD) and Geometry of the Selfish Herd (GSH) to address an apparent conflict in their predictions of equal mean fitness between patches (IFD) and declining fitness benefits within a patch (GSH). We tested these hypotheses in a socio-spatial context using individual caribou that were aggregated or disaggregated during calving and varied in their annual reproductive success (ARS). We then tested individual consistency of these spatial tactics. We reveal that two socio-spatial tactics accorded similar mean ARS (IFD); however, ARS for aggregated individuals declined near the periphery (GSH). Individuals near the aggregation periphery exhibited flexibility, whereas others were consistent. The integration of classical theories through a contemporary lens of consistent individual differences provides evidence for an integrated GSH and IFD strategy that may represent an evolutionary stable state. © 2020 John Wiley & Sons Ltd/CNRS Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166597
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: Department of Biology, Memorial University of Newfoundland, St. John’s, NL, Canada; Department of Fisheries and Oceans, St. John’s, NL, Canada; Cognitive and Behavioural Ecology Interdisciplinary Program, Memorial University of Newfoundland, St. John’s, NL, Canada
Recommended Citation:
Bonar M.,Lewis K.P.,Webber Q.M.R.,et al. Geometry of the ideal free distribution: individual behavioural variation and annual reproductive success in aggregations of a social ungulate[J]. Ecology Letters,2020-01-01,23(9)