globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.14098
Scopus ID: 2-s2.0-85044187029
Predatory strategies and behaviours in cephalopods are altered by elevated CO2
Author: Spady B.L.; Munday P.L.; Watson S.-A.
Source Publication: Global Change Biology
ISSN: 13541013
Publishing Year: 2018
Volume: 24, Issue:6
pages begin: 2585
pages end: 2596
Language: 英语
Keyword: activity ; cephalopod ; ocean acidification ; predatory behaviour ; predator–prey interaction ; squid
Scopus Keyword: avoidance reaction ; carbon dioxide ; cephalopod ; food web ; marine ecosystem ; ocean acidification ; predation ; predator-prey interaction ; Cephalopoda ; Idiosepius pygmaeus ; Invertebrata ; Sepioteuthis lessoniana
English Abstract: There is increasing evidence that projected near-future carbon dioxide (CO2) levels can alter predator avoidance behaviour in marine invertebrates, yet little is known about the possible effects on predatory behaviours. Here we tested the effects of elevated CO2 on the predatory behaviours of two ecologically distinct cephalopod species, the pygmy squid, Idiosepius pygmaeus, and the bigfin reef squid, Sepioteuthis lessoniana. Both species exhibited an increased latency to attack and altered body pattern choice during the attack sequence at elevated CO2. I. pygmaeus also exhibited a 20% decrease in predation rate, an increased striking distance, and reduced preference for attacking the posterior end of prey at elevated CO2. Elevated CO2 increased activity levels of S. lessoniana comparable to those previously shown in I. pygmaeus, which could adversely affect their energy budget and increase their potential to be preyed upon. The effects of elevated CO2 on predatory behaviours, predation strategies and activity levels of cephalopods reported here could have far-reaching consequences in marine ecosystems due to the ecological importance of cephalopods in the marine food web. © 2018 John Wiley & Sons Ltd
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Document Type: 期刊论文
Appears in Collections:影响、适应和脆弱性

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Affiliation: ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia; College of Science and Engineering, James Cook University, Townsville, QLD, Australia

Recommended Citation:
Spady B.L.,Munday P.L.,Watson S.-A.. Predatory strategies and behaviours in cephalopods are altered by elevated CO2[J]. Global Change Biology,2018-01-01,24(6)
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