As institutionalized in the U. S. Endangered Species Act of 1973, critical habitat is considered the area necessary to the survival of a species, and, in the case of endangered and threatened species, essential to their recovery. An animal's...

The habitat of a living organism, plant, animal, or microbe, is a place, or a set of environmental conditions, where the organism lives. Net loss of habitat obviously has serious implications for the survival and well-being of dependent organisms,...

Habitat fragmentation is frequently caused by humans when native vegetation is cleared for human activities such as agriculture, rural development or urbanization. Habitats which were once continuous become divided into separate fragments. After...

Abstract. Based on presence/absence of species, we proposed previously that large fragments of the Florida sand pine scrub habitat do not possess greater conservation value for vertebrates than do archipelagos of small and medium-sized fragments. We reexamined the values of fragments of different...

We tested the ecological consequences of habitat fragmentation by comparing the density, population growth rate, survivorship, and recruitment of Microtus pennsylvanicus populations within a 20-ha fragmented landscape with those of populations in a 20-ha unfragmented landscape. We also tested for fragment-size effects by comparing...