DOI: 10.1111/ele.12976
Scopus记录号: 2-s2.0-85046689095
论文题名: Predator size divergence depends on community context
作者: Okuzaki Y. ; Sota T.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2018
卷: 21, 期: 7 起始页码: 1097
结束页码: 1107
语种: 英语
英文关键词: Adaptive evolution
; beta diversity
; carabid beetle
; character release
; DNA barcoding
; DNA taxonomy
; earthworm
; reproductive interference
; UniFrac distance
Scopus关键词: Carabidae
; Carabus japonicus
; Coleoptera
英文摘要: Body size is a multi-functional trait related to various fitness components, but the relative importance of different selection pressures is seldom resolved. In Carabus japonicus beetles, of which the larvae exclusively prey on earthworms, adult body size is related to the presence/absence of a larger congener and habitat temperature. In sympatry, C. japonicus consistently exhibits smaller body size which is effective for avoiding interspecific mating, but in allopatry, it shows size variation unrelated to temperature. Here, we show that this predator–size variation is attributed to prey–size variation, associated with high phylogenetic diversity in earthworm communities. In allopatry, the predator size was larger where larger prey occurred. Larger adult size may have been selected because larger females produce larger larvae, which can subdue larger prey. Thus, in the absence of a larger congener, variation in prey body size had a pronounced effect on geographic body size divergence in C. japonicus. © 2018 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/107416
Appears in Collections: 气候减缓与适应
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作者单位: Field Science Center for Northern Biosphere, Hokkaido University, Takaoka, Tomakomai, Japan; Department of Zoology, Graduate School of Science, Kyoto University, Sakyo, Kyoto, Japan
Recommended Citation:
Okuzaki Y.,Sota T.. Predator size divergence depends on community context[J]. Ecology Letters,2018-01-01,21(7)