Brazil’s fragmented forests

Insects in fragmented forests: a functional approach.

Insects are highly susceptible to the adverse effects of forest fragmentation. It is now beyond any doubt that fragmentation-induced changes in abundance and species richness occur in many insect groups. However, the study of insects in fragmented forests is still in its infancy and lacks real direction. Simple empirical studies are not answering the questions we most want to answer about fragm...

Theory meets reality in fragmented forests

For those of us who study fragmented ecosystems, island biogeographic theory (MacArthur & Wilson, 1967) is still in many ways the conceptual Mecca towards which we face when thinking about imperiled biodiversity. The theory posits that species richness results from a dynamic equilibrium between the opposing forces of colonization and extinction, which are governed respectively by island isolati...

Fates of feathered fruit-eaters in fragmented forests

High inbreeding and low connectivity among Ambystoma texanum populations in fragmented Ohio forests

Habitat loss and fragmentation negatively impact the size and diversity of many natural populations. Woodland amphibians require connected aquatic and terrestrial habitats to complete their life cycle, and often rely on metapopulation structure for long-term persistence. Wetland loss and deforestation fragment amphibian populations, which may result in population isolation and its negative effe...

A New Brevicipitid Species (Brevicipitidae: Callulina) from the Fragmented Forests of the Taita Hills, Kenya

A new species Callulina dawida is described from the Taita Hills, Kenya. It is distinguished from other members of the genus on the basis of the degree of digital expansion. The species further differs from other members of the genus based on molecular sequence comparisons and on its call. The morphological variation in the new species is described, including a comparison of internal and extern...