Habitat loss and the structure of plant-animal mutualistic networks
Habitat loss and the structure of plant-animal mutualistic networks
复制标题
DOI：
10.1111/j.1461-0248.2005.00868.x
复制
发表时间：
2006-03-01
期刊：
影响因子：
8.8
通讯作者：
Bascompte, J
中科院分区：
文献类型：
--
作者：
Fortuna, MA;Bascompte, J
最近的论文描述了植物-动物互惠网络的结构。然而，还没有研究探讨网络结构的持续性，这样的互惠社区的动态影响。在这里，我们开发了一个斑块模型的整个植物-动物群落，并探讨其持久性。为了评估网络结构的作用，我们建立了三个版本的模型。在第一个版本中，我们使用两个真实的互惠社区的确切交互网络。在其他版本中，我们使用两个不同的空模型随机化观察到的相互作用网络。我们发现，社区对栖息地丧失的反应受到网络结构的影响。真实的社区比随机社区更快地开始衰退，但持续更高的破坏水平。有一个破坏阈值，在那里社区崩溃。我们的模型是第一次尝试来描述整个互惠元性的动态相互作用的现实方式。
Recent papers have described the structure of plant-animal mutualistic networks. However, no study has yet explored the dynamical implications of network structure for the persistence of such mutualistic communities. Here, we develop a patch-model of a whole plant-animal community and explore its persistence. To assess the role of network structure, we build three versions of the model. In the first version, we use the exact network of interactions of two real mutualistic communities. In the other versions, we randomize the observed network of interactions using two different null models. We show that the community response to habitat loss is affected by network structure. Real communities start to decay sooner than random communities, but persist for higher destruction levels. There is a destruction threshold at which the community collapses. Our model is the first attempt to describe the dynamics of whole mutualistic metacommunities interacting in realistic ways.