The Effects of Spatial Subsidies and Food Web Structure on the Stability and Long-Term Dynamics of Island Ecosystems

该项目建议评估外部和原位因素如何影响加利福尼亚湾岛屿上的生态系统功能、群落动态和物种多样性。有五个主要目标。首先，了解多种因素如何影响种群的分布和丰度。其次，了解生产力的空间（景观）因子和时间变异如何影响群落动态和生态系统功能。第三，将海洋中的过程和生产力与陆地上的人口和食物网动态联系起来。第四，分析焦点物种的长期动态。第五，解决影响人口、社区和生态系统稳定的因素。将在4年的时间内进行实验和实地抽样的结合，以测试与每个目标相关的特定假设。

Huxel, Gary and Sanchez-Pinero, FranciscoDEB 0079426The PI's propose work evaluating how external and in situ factors affect ecosystem function, community dynamics, and species diversity on islands in the Gulf of California. There are five primary goals. First, to understand how multiple factors influence the distribution and abundance of populations. Second, to understand how spatial (landscape) factors and temporal variability in productivity affect community dynamics and ecosystem function. Third, to connect processes and productivity in the ocean to population and food web dynamics on land. Fourth, to analyze the long-term dynamics of focal species. Fifth, to address factors that affect the stability of populations, communities, and ecosystems. A combination of experiments and field sampling will be conducted over a 4 year period to test specific hypotheses related to each goal.