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Dispersal kernels regulate environmental, biotic, and stochastic effects on the maintenance of metacommunity diversityNARA Subscribed
Dispersal regulates patterns of diversity in metacommunities, but a primary focus on dispersal rates may mischaracterize effects that actually arise from dispersal kernels. Kernels describe probabilistic movements between donor and recipient patches, with steep kernels displaying a rapid decline in dispersal probability with distance, and shallow kernels decaying gradually over longer distances. We used simulations to measure...
Above‐ and below‐ground impacts of introduced predators in seabird‐dominated island ecosystemsNARA Subscribed
Predators often exert multi‐trophic cascading effects in terrestrial ecosystems. However, how such predation may indirectly impact interactions between above‐ and below‐ground biota is poorly understood, despite the functional importance of these interactions. Comparison of rat‐free and rat‐invaded offshore islands in New Zealand revealed that predation of seabirds by introduced rats reduced forest soil fertility by disrupting...
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