生态系统
海带森林
生态学
生物量(生态学)
环境科学
食物网
营养级联
生态系统工程师
中红细胞释放假说
碎石
海洋生态系统
海草
生态稳定性
资源(消歧)
生态系统服务
生物
顶级掠食者
计算机网络
计算机科学
作者
Jonathan A. Walter,Kyle A. Emery,Jenifer E. Dugan,David M. Hubbard,Tom W. Bell,Lawrence W. Sheppard,Vadim A. Karatayev,Kyle C. Cavanaugh,Daniel C. Reuman,Max C. N. Castorani
标识
DOI:10.1073/pnas.2310052120
摘要
Cross-ecosystem subsidies are critical to ecosystem structure and function, especially in recipient ecosystems where they are the primary source of organic matter to the food web. Subsidies are indicative of processes connecting ecosystems and can couple ecological dynamics across system boundaries. However, the degree to which such flows can induce cross-ecosystem cascades of spatial synchrony, the tendency for system fluctuations to be correlated across locations, is not well understood. Synchrony has destabilizing effects on ecosystems, adding to the importance of understanding spatiotemporal patterns of synchrony transmission. In order to understand whether and how spatial synchrony cascades across the marine-terrestrial boundary via resource subsidies, we studied the relationship between giant kelp forests on rocky nearshore reefs and sandy beach ecosystems that receive resource subsidies in the form of kelp wrack (detritus). We found that synchrony cascades from rocky reefs to sandy beaches, with spatiotemporal patterns mediated by fluctuations in live kelp biomass, wave action, and beach width. Moreover, wrack deposition synchronized local abundances of shorebirds that move among beaches seeking to forage on wrack-associated invertebrates, demonstrating that synchrony due to subsidies propagates across trophic levels in the recipient ecosystem. Synchronizing resource subsidies likely play an underappreciated role in the spatiotemporal structure, functioning, and stability of ecosystems.
科研通智能强力驱动
Strongly Powered by AbleSci AI