Feeding habits influence species habitat associations at the landscape scale in a diverse clade of Neotropical fishes

作者：Karold V. Coronado-Franco, Pablo A. Tedesco, Matthew A. Kolmann, Samuel R. Borstein, Kristine O. Evans, Sandra Bibiana Correa · 发表于：Journal of Biogeography · 年份：2022 · DOI：10.1111/jbi.14490 · 被引用次数：7 · 研究领域：Fish biology, ecology, and behavior、Fish Ecology and Management Studies、Fish Biology and Ecology Studies

Abstract Aim A primary goal of community ecology is to understand the mechanisms that drive species' spatial distribution and habitat associations. Species' geographic distribution can be influenced by the distribution of their prey partly because consumers' behaviour is oriented to optimal energy use during foraging. We analysed how differences in dietary preferences influence the spatial distribution and habitat associations of species at the landscape scale. We hypothesized that differences in feeding guilds will lead to divergent habitat association patterns among species. Location Amazon River drainage basin. Taxon Characiform fishes in the family Serrasalmidae (piranhas and pacus). Methods We used diet data to classify species into feeding guilds (frugivores, herbivores, piscivores, fin and scale feeders and planktivores). We used three proxies of habitat association derived from satellite products: floodplain extent, landscape heterogeneity and flood duration, in three distance buffers. We implemented phylogenetic generalized least squares models to evaluate the relationship between habitat association and feeding guilds. Results Frugivores, piscivores and fin and scale feeders presented similar patterns of habitat associations, with frugivores occupying wider areas of floodplain and greater landscape heterogeneity. Herbivores and planktivores were associated with smaller floodplain extents and lower landscape heterogeneity. All feeding guilds were associated with simi...