globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12541
Scopus记录号: 2-s2.0-84955344199
论文题名:
Temperature driven changes in the diet preference of omnivorous copepods: No more meat when it's hot?
作者: Boersma M.; Mathew K.A.; Niehoff B.; Schoo K.L.; Franco-Santos R.M.; Meunier C.L.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期:1
起始页码: 45
结束页码: 53
语种: 英语
英文关键词: Global warming ; Grazing ; Homeostasis ; Metabolism ; Stoichiometry ; Zooplankton
Scopus关键词: Copepoda ; Cryptophyta ; Dinophyceae ; Oxyrrhis marina ; Rhodomonas salina ; Temora longicornis ; animal ; chemistry ; copepod ; Cryptophyta ; dinoflagellate ; food chain ; food preference ; heat ; physiology ; Animals ; Copepoda ; Cryptophyta ; Dinoflagellida ; Food Chain ; Food Preferences ; Hot Temperature
英文摘要: Herbivory is more prevalent in the tropics than at higher latitudes. If differences in ambient temperature are the direct cause for this phenomenon, then the same pattern should be visible in a seasonal gradient, as well as in experiments manipulating temperature. Using 15N stable isotope analyses of natural populations of the copepod Temora longicornis we indeed observed seasonal differences in the trophic level of the copepod and a decrease in trophic level with increasing temperature. In a grazing experiment, with a mixed diet of the cryptophyte Rhodomonas salina and the heterotrophic dinoflagellate Oxyrrhis marina, T. longicornis preferred the cryptophyte at higher temperatures, whereas at lower temperatures it preferred the non-autotrophic prey. We explain these results by the higher relative carbon content of primary producers compared to consumers, in combination with the higher demand for metabolic carbon at higher temperatures. Thus, currently increasing temperatures may cause changes in dietary preferences of many consumers. Copyright © 2016 John Wiley & Sons Ltd/CNRS.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107826
Appears in Collections:气候减缓与适应

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作者单位: Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Biologische Anstalt Helgoland, Postfach 180, Helgoland, Germany; University of Bremen, Bremen, Germany; Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany; Department of Marine Biology, Microbiology and Biochemistry, Cochin University of Science and Technology, Cochin, India; Shannon Point Marine Center, Western Washington University, Anacortes, WA, United States

Recommended Citation:
Boersma M.,Mathew K.A.,Niehoff B.,et al. Temperature driven changes in the diet preference of omnivorous copepods: No more meat when it's hot?[J]. Ecology Letters,2016-01-01,19(1)
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