A global synthesis of seasonal temperature-size responses in copepods

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• 作者：Curtis R. Horne ; Andrew G. Hirst ; David Atkinson ; Aitana Neves and Thomas Kiø ; rboe
• 刊名：Global Ecology and Biogeography
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：25
• 期：8
• 页码：988-999
• 全文大小：514K
• ISSN：1466-8238

文摘

Body size is a master trait with significant ecological importance. Seasonal changes in body size within diverse ectothermic species can result from different environmental conditions experienced during ontogeny in subsequent generations. Whilst intraspecific changes in adult size have been well studied under controlled experimental conditions and across geographical ranges, comprehensive analyses of temporal changes are lacking, and there remains considerable unexplained variation in body size responses within aquatic taxa. Using planktonic copepods as an exemplar taxon, we quantify variation in adult body mass within seasonally varying marine and freshwater environments. We describe how size variation relates to temperature, food concentration (chlorophyll-a) and life-history characteristics, including feeding strategy.