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DOI	10.1111/ele.12541
	Temperature driven changes in the diet preference of omnivorous copepods: No more meat when it's hot?
	Boersma M.; Mathew K.A.; Niehoff B.; Schoo K.L.; Franco-Santos R.M.; Meunier C.L.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:1
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.
英文关键词	Global warming; Grazing; Homeostasis; Metabolism; Stoichiometry; Zooplankton
学科领域	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
语种	英语
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
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118606
作者单位	Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Biologische Anstalt Helgoland, Postfach 180, Helgoland, 27483, 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, 682016, India; Shannon Point Marine Center, Western Washington University, Anacortes, WA, United States
推荐引用方式 GB/T 7714	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],2016,19(1).
APA	Boersma M.,Mathew K.A.,Niehoff B.,Schoo K.L.,Franco-Santos R.M.,&Meunier C.L..(2016).Temperature driven changes in the diet preference of omnivorous copepods: No more meat when it's hot?.Ecology Letters,19(1).
MLA	Boersma M.,et al."Temperature driven changes in the diet preference of omnivorous copepods: No more meat when it's hot?".Ecology Letters 19.1(2016).