Inferring food web structure from predator-prey body size relationships
Inferring food web structure from predator-prey body size relationships
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DOI：
10.1111/2041-210x.12103
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发表时间：
2013-11-01
影响因子：
6.6
通讯作者：
Mouillot, David
中科院分区：
文献类型：
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作者：
Gravel, Dominique;Poisot, Timothee;Mouillot, David
1.当前的全球变化使得能够预测新兴生态系统中将发生哪些相互作用变得非常重要。目前大多数推断两个物种之间存在相互作用的方法都需要很好地了解它们的行为或直接观察相互作用。在本文中，我们克服了这些局限性，开发了一种方法，启发从食物网结构的生态位模型，利用捕食者和猎物的身体大小之间的统计关系来推断一个池的物种之间的潜在相互作用矩阵.我们的方法的新奇是推断，对于任何一个给定的物种池，三个物种的特定参数的生态位模型。该方法适用于本地和元网络规模。它允许人们评估进入群落的新物种的摄食相互作用。我们发现这种方法对食物网的结构给出了稳健的预测，并且当捕食者和被捕食者之间的体型关系的强度增加时，这种方法的效率也会增加.最后，我们说明了潜在的方法来推断不同的全球变化情景下的地中海中上层鱼类的元网结构。
1. Current global changes make it important to be able to predict which interactions will occur in the emerging ecosystems. Most of the current methods to infer the existence of interactions between two species require a good knowledge of their behaviour or a direct observation of interactions. In this paper, we overcome these limitations by developing a method, inspired from the niche model of food web structure, using the statistical relationship between predator and prey body size to infer the matrix of potential interactions among a pool of species.2. The novelty of our approach is to infer, for any species of a given species pool, the three species-specific parameters of the niche model. The method applies to both local and metaweb scales. It allows one to evaluate the feeding interactions of a new species entering the community.3. We find that this method gives robust predictions of the structure of food webs and that its efficiency is increased when the strength of the body-size relationship between predators and preys increases.4. We finally illustrate the potential of the method to infer the metaweb structure of pelagic fishes of the Mediterranean sea under different global change scenarios.