Riparian buffers provide refugia during secondary forest succession

Aim Secondary forests regenerating from human disturbance are increasingly becoming a predominant forest type in many regions, and they play a significant role in forest community dynamics. Understanding the factors that underlie the variation in species responses during secondary succession is important for understanding community assembly and biodiversity monitoring and management. Because species vary in ecology and behavior, responses to ecosystem change should vary among species. Here, we show that habitat type (riparian, upland), phylogeny, and species traits mediate anuran and lizard probability of occurrence and species richness in pasture and secondary forest. Location Sarapiquí and Osa Peninsula, Costa Rica. Methods We used phylogenetic occupancy models to estimate assemblage-level and species-specific responses to forest succession in 30 chronosequence sites that include pasture, secondary forest regenerating from pasture, and mature forest sites. Results For the majority of species, we found increasing probability of occurrence in upland habitats as forest regenerated from pasture to secondary forest and similar probability of occurrence in riparian habitats across pasture, secondary forest, and mature forest sites. Species' responses to forest stage were phylogenetically correlated, and the trend was especially strong for anuran response to pasture sites. Anurans with lotic larval habitat had a positive occupancy response to pasture upland habitat and anurans with lentic larval habitat had a variable response to different forest stages compared to mature forest.Funding provided by: FULBRIGHTCrossref Funder Registry ID: http://dx.doi.org/10.13039/100010629Award Number: Funding provided by: Florida International UniversityCrossref Funder Registry ID: http://dx.doi.org/10.13039/100007681Award Number: Funding provided by: Organization for Tropical Studies*Crossref Funder Registry ID: Award Number