Impacts of eradication of exotic species on matter flow in island ecosystems

通过野外调查和计算机模拟，评价了外来哺乳动物入侵对海洋岛屿生态系统功能的影响，并预测了外来哺乳动物灭绝后海洋岛屿生态系统的变化。该模型预测，当山羊和山羊同时灭绝时，植被和生物量将恢复得更快。我们的研究结果表明，考虑生物和非生物环境因子的空间异质性对于更可行的生态系统变化预测应该是重要的。

We evaluated effects of invasive exotic mammals on ecosystem function in oceanic islands and predicted changes in ecosystems after their eradication by field survey in the Ogasawara (Bonin) Islands and computer simulation. The model predicted that vegetation and biomass would be recovered more quickly when goats and rates were simultaneously eradicated. Our results suggested that considering spatial heterogeneity of biotic and abiotic environmental factor should be important for more feasible prediction of the ecosystem change.