期刊
ECOLOGY LETTERS
卷 15, 期 2, 页码 142-150出版社
WILEY
DOI: 10.1111/j.1461-0248.2011.01719.x
关键词
Cholesterol; Daphnia magna; eicosapentaenoic acid; essential resources; food quality; herbivore; multi-nutrient limitation; nutritional ecology; von Liebig
类别
资金
- German Research Foundation (DFG) [WA 2445 /3-1, WA 2445/4-1]
There is growing consensus that the growth of herbivorous consumers is frequently limited by more than one nutrient simultaneously. This understanding, however, is based primarily on theoretical considerations and the applicability of existing concepts of co-limitation has rarely been tested experimentally. Here, we assessed the suitability of two contrasting concepts of resource limitation, i.e. Liebigs minimum rule and the multiple limitation hypothesis, to describe nutrient-dependent growth responses of a freshwater herbivore (Daphnia magna) in a system with two potentially limiting nutrients (cholesterol and eicosapentaenoic acid). The results indicated that these essential nutrients interact, and do not strictly follow Liebigs minimum rule, which consistently overestimates growth at co-limiting conditions and thus is not applicable to describe multiple nutrient limitation of herbivorous consumers. We infer that the outcome of resource-based modelling approaches assessing herbivore population dynamics strongly depends on the applied concept of co-limitation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据