DOI: 10.1111/ele.12752
Scopus记录号: 2-s2.0-85014886405
论文题名: Maternally induced intraclutch cannibalism: an adaptive response to predation risk?
作者: Tigreros N. ; Norris R.H. ; Wang E.H. ; Thaler J.S.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2017
卷: 20, 期: 4 起始页码: 487
结束页码: 494
语种: 英语
英文关键词: Colorado potato beetle
; maternal effects
; predator avoidance
; predator–prey interaction
; siblicide
Scopus关键词: Coleoptera
; Hexapoda
; Leptinotarsa decemlineata
; animal
; beetle
; cannibalism
; female
; food chain
; growth, development and aging
; Heteroptera
; larva
; male
; nymph
; physiology
; Animals
; Beetles
; Cannibalism
; Female
; Food Chain
; Heteroptera
; Larva
; Male
; Nymph
英文摘要: Theory on condition-dependent risk-taking indicates that when prey are in poor condition, their anti-predator responses should be weak. However, variation in responses resulting from differences in condition is generally considered an incidental by-product of organisms living in a heterogeneous environment. Using Leptinotarsa decemlineata beetles and stinkbug (Podisus maculiventris) predators, we hypothesised that in response to predation risk, parents improve larval nutritional condition and expression of anti-predator responses by promoting intraclutch cannibalism. We showed that mothers experiencing predation risk increase production of unviable trophic eggs, which assures provisioning of an egg meal to the newly hatched offspring. Next, we experimentally demonstrated that egg cannibalism reduces L. decemlineata vulnerability to predation by improving larval nutritional condition and expression of anti-predator responses. Intraclutch cannibalism in herbivorous insects might be a ubiquitous strategy, aimed to overcome the dual challenge of feeding on protein-limited diets while living under constant predation threat. © 2017 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/107647
Appears in Collections: 气候减缓与适应
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作者单位: Department of Entomology, Cornell University, Ithaca, NY, United States; Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, United States
Recommended Citation:
Tigreros N.,Norris R.H.,Wang E.H.,et al. Maternally induced intraclutch cannibalism: an adaptive response to predation risk?[J]. Ecology Letters,2017-01-01,20(4)