Ecology

Decadal changes and delayed avian species losses due to deforestation in the northern Neotropics

Published on 2013-10-08 in PeerJ, vol 1. DOI: 10.7717/peerj.179
How avifauna respond to the long-term loss and fragmentation of tropical forests is a critical issue in biodiversity management. We use data from over 30 years to gain insights into such changes in the northernmost Neotropical rainforest in the Sierra de Los Tuxtlas of southern Veracruz, Mexico. This region has been extensively deforested over the past half-century. The Estación de Biología Tropical Los Tuxtlas, of the Universidad Nacional Autónoma de México (UNAM), protects a 640 ha… Read more

Why do leaf-tying caterpillars abandon their leaf ties?

Published on 2013-09-26 in PeerJ, vol 1. DOI: 10.7717/peerj.173
Leaf-tying caterpillars act as ecosystem engineers by building shelters between overlapping leaves, which are inhabited by other arthropods. Leaf-tiers have been observed to leave their ties and create new shelters (and thus additional microhabitats), but the ecological factors affecting shelter fidelity are poorly known. For this study, we explored the effects of resource limitation and occupant density on shelter fidelity and assessed the consequences of shelter abandonment. We first… Read more