Increase in predator-prey size ratios throughout the Phanerozoic history of marine ecosystems
Increase in predator-prey size ratios throughout the Phanerozoic history of marine ecosystems
复制标题
在整个显生宙海洋生态系统历史中,捕食者与猎物的体型比不断增加
DOI:
10.1126/science.aam7468
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发表时间:
2017
期刊:
影响因子:
56.9
通讯作者:
Finnegan, Seth
中科院分区:
文献类型:
--
作者:
Klompmaker, Adiël A.;Kowalewski, Michał;Huntley, John Warren;Finnegan, Seth
The escalation hypothesis posits that predation by increasingly powerful and metabolically active carnivores has been a major driver of metazoan evolution. We test a key tenet of this hypothesis by analyzing predatory drill holes in fossil marine shells, which provide a ~500-million-year record of individual predator-prey interactions. We show that drill-hole size is a robust predictor of body size among modern drilling predators and that drill-hole size (and thus inferred predator size and power) rose substantially from the Ordovician to the Quaternary period, whereas the size of drilled prey remained stable. Together, these trends indicate a directional increase in predator-prey size ratios. We hypothesize that increasing predator-prey size ratios reflect increases in prey abundance, prey nutrient content, and predation among predators.
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影响因子:
56.9
作者:
FURSICH, FT;JABLONSKI, D
通讯作者:
JABLONSKI, D
影响因子:
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DOI:
10.1016/s0031-0182(03)00627-8
发表时间:
2003
期刊:
Palaeogeography, Palaeoclimatology, Palaeoecology
影响因子:
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