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What is the prevalent topology among interaction networks? How do consumers balance between generalism and performance when exploiting different resources? These two long‐standing, still open questions have been unified under a common framework by the integrative hypothesis of specialization (IHS). According to the IHS, ecological specialization is structured by different processes at small and large...
Natural populations are not homogenous systems but sets of individuals that occupy subsets of the species’ niche. This phenomenon is known as individual specialization. Recently, several studies found evidence of individual specialization in animal diets. Diet is a critical dimension of a species’ niche that affects several other dimensions, including space use, which has been poorly studied under...
A central issue in ecology is the definition and identification of keystone species, i.e. species that are relatively more important than others for maintaining community structure and ecosystem functioning. Network theory has been pointed out as a robust theoretical framework to enhance the operationality of the keystone species concept. We used the concept of centrality as a proxy for a species’...
In networks of plant–animal mutualisms, different animal groups interact preferentially with different plants, thus forming distinct modules responsible for different parts of the service. However, what we currently know about seed dispersal networks is based only on birds. Therefore, we wished to fill this gap by studying bat–fruit networks and testing how they differ from bird–fruit networks. As...
In the present study, I described the organization of a Neotropical bat assemblage, and tested whether this organization was variable in time. In an Atlantic Forest reserve in southeastern Brazil bats were captured monthly with mist nets over 4years, and individuals were classified into guilds. I analyzed only leaf-nosed bats, and observed that guilds of fruit-eating bats dominated the assemblage...
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