Fortuna Miguel A, Gómez-Rodríguez Carola, Bascompte Jordi
Integrative Ecology Group, Estación Biológica de Doñana, CSIC, Apdo. 1056, 41080 Seville, Spain.
Proc Biol Sci. 2006 Jun 7;273(1592):1429-34. doi: 10.1098/rspb.2005.3448.
In the past few years, the framework of complex networks has provided new insight into the organization and function of biological systems. However, in spite of its potential, spatial ecology has not yet fully incorporated tools and concepts from network theory. In the present study, we identify a large spatial network of temporary ponds, which are used as breeding sites by several amphibian species. We investigate how the structural properties of the spatial network change as a function of the amphibian dispersal distance and the hydric conditions. Our measures of network topology suggest that the observed spatial structure of ponds is robust to drought (compared with similar random structures), allowing the movement of amphibians to and between flooded ponds, and hence, increasing the probability of reproduction even in dry seasons.
在过去几年中，复杂网络框架为生物系统的组织和功能提供了新的见解。然而，尽管具有潜力，但空间生态学尚未充分纳入网络理论的工具和概念。在本研究中，我们识别出一个由临时池塘组成的大型空间网络，这些池塘被几种两栖动物用作繁殖场所。我们研究了空间网络的结构特性如何随两栖动物扩散距离和水文条件而变化。我们的网络拓扑测量表明，观察到的池塘空间结构对干旱具有鲁棒性（与类似的随机结构相比），允许两栖动物在被水淹没的池塘之间移动，从而即使在旱季也增加了繁殖的概率。
