Strategies for conserving plant diversity in agroecosystems generally focus on either expanding land area in non-crop habitat or enhancing diversity within crop fields through changes in within-field management practices. In this study, we compare effects on landscape-scale species richness from such land-sharing or land-sparing strategies. We collected data in arable field, grassland, pasture,...

Due to that the vegetation has been influenced by human activity for a long period, such as logging, grazing and trampling, giant pandas’ habitat has been fragmented gradually, which has threatened the survival of the giant panda. Therefore, it would be an essential issue to inspect the spatial pattern of the giant panda’s habitat and analyze the factors which drive these habitat changes. The a...

Differential habitat selection is a central component in the evolution of species, but it has been quantified rarely for sympatric species in relation to the multiple impacts of resources at the spatial scales at which animals operate. Our main goal was to quantify the selection of terrestrial summer habitats in a natural floodplain in Italy by two sympatric amphibians (Bufo bufo spinosus and B...

The term critical habitat is used to describe the subset of habitat that is essential to the survival and recovery of species. Some countries legally require that critical habitat of listed threatened and endangered species be identified and protected. However, there is little evidence to suggest that the identification of critical habitat has had much impact on species recovery. We hypothesize...

Ideal free distribution (IFD) theory has frequently been used to investigate habitat selection when fitness payoffs are frequency-dependent. To date, however, researchers have not considered the possibility that individuals may simultaneously differ in their ability to compete for resources and their susceptibility to predation. Such differences might be expected to occur as a consequence of di...

The life history of many marine fishes is a 2-phase cycle: juveniles and adults make up a demersal phase, whereas larvae are planktonic. Determining ontogenetic patterns of habitat type use of the demersal phase has important management and habitat conservation implications for species that use coastal habitat types as juveniles. Juvenile permit, Trachinotus falcatus, are presumed to be limited...

A method is described that provides a rapid and accurate analysis of habitat used by radioequipped animals. The digitizer (basically an X-Y plotter in reverse) converts maps into digital form by describing each habitat unit as a polygon that closely approximates the actual shape of the unit. The coordinates of each polygon are then stored on magnetic tape. Habitat classification data and other ...

Sand shore ecosystems are extremely vulnerable to alien plant invasions. While most of the abiotic drivers success have been identified, less is known on role biological processes driving invasion. Studying interactions between and native communities across different habitats along ecological succession (i.e. community maturity) can elucidate dynamics invasions in dune systems. In this study, w...