Metacommunity in dynamic landscapes
Metacommunity in dynamic landscapes
Abstract Predictions from theory, field data, and experiments have shown that high landscape connectivity promotes higher species richness than low connectivity. However, examples demonstrating high diversity in low connected landscapes also exist. Here we describe the many factors that drive landscape connectivity at different spatiotemporal scales by varying the amplitude and frequency of changes in the dispersal radius of spatial networks. We found that the fluctuations of landscape connectivity support metacommunities with higher species richness than static landscapes. Our results also show a dispersal radius threshold below which species richness drops dramatically in static landscapes. Such a threshold is not observed in dynamic landscapes for a broad range of amplitude and frequency values determining landscape connectivity. We conclude that merging amplitude and frequency as drivers of landscape connectivity together with patch dynamics into metacommunity theory can provide new testable predictions about species diversity in rapidly changing landscapes.
Klecka Jan、de Santana Charles Novaes、Meli¨￠n Carlos J.、Palamara Gian M.
Center for Ecology, Evolution and Biogeochemistry, EAWAG, Swiss Federal Institute of Aquatic Science and Technology||Laboratory of Theoretical Ecology, Institute of Entomology, Biology Centre of the Czech Academy of SciencesCenter for Ecology, Evolution and Biogeochemistry, EAWAG, Swiss Federal Institute of Aquatic Science and Technology||Programa de P¨?s-Gradua??o em Ci¨oncias da Terra e do Ambiente, Universidade Estadual de Feira de Santana||Institute of Evolutionary Biology and Environmental StudiesCenter for Ecology, Evolution and Biogeochemistry, EAWAG, Swiss Federal Institute of Aquatic Science and TechnologyInstitute of Evolutionary Biology and Environmental Studies
环境科学理论环境生物学生物科学理论、生物科学方法
patch dynamicsconnectivity dynamicsseasonalitypopulation dynamicsindividual based modelrandom geometric networksregional species richnessstatic landscapesdynamic landscapesfast-changing landscapes
Klecka Jan,de Santana Charles Novaes,Meli¨￠n Carlos J.,Palamara Gian M..Metacommunity in dynamic landscapes[EB/OL].(2025-03-28)[2025-06-19].https://www.biorxiv.org/content/10.1101/021220.点此复制
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