Indirect effects of habitat loss via habitat fragmentation: A cross-taxa analysis of forest-dependent species

Habitat fragmentation, species loss, and biological control.

Fragmentation of habitats in the agricultural landscape is a major threat to biological diversity, which is greatly determined by insects. Isolation of habitat fragments resulted in decreased numbers of species as well as reduced effects of natural enemies. Manually established islands of red clover were colonized by most available herbivore species but few parasitoid species. Thus, herbivores ...

Habitat Loss and Fragmentation

Glossary Cover type A term used by the geographers for a type of mapped feature (e.g., forest, freshwater, or grassland). The dominant natural cover type in a landscape is often used to approximate habitat. Fragmentation per se The breaking apart of habitat while keeping habitat amount constant. Habitat The place where an organism normally lives. Habitat fragmentation The breaking apart of habi...

Habitat Fragmentation and Species Barriers

Effects of Habitat Loss and Fragmentation on Population Dynamics

We used a spatially explicit population model that was generalized to produce nine ecological profiles of long-lived species with stable home ranges and natal dispersal to investigate the effects of habitat loss and fragmentation on population dynamics. We simulated population dynamics in landscapes composed of three habitat types (good-quality habitat ranging from 10–25%, poor-quality habitat ...

Habitat fragmentation and the species– area relationship: a focus on total species richness obscures the impact of habitat loss on habitat specialists

Conservation Biogeography and Macroecology Group, School of Geography and the Environment, University of Oxford, South Parks Road, Oxford, OX1 3QY, UK, Azorean Biodiversity Group (ABG CITA-A) and Portuguese Platform for Enhancing Ecological Research & Sustainability (PEERS), Departamento de Cîencias Agr arias, University of the Azores, Rua Capit~ao Jo~ao d0 Avila, Pico da Urze, 9700-042, Angra ...