Does probability of occurrence relate to population dynamics?

ABSTRACT: Hutchinson defined species' realized niche as the set of environmental conditions in which populations can persist in the presence of competitors. In terms of demography, the realized niche corresponds to the environments where the intrinsic growth rate (r) of populations is positive. Observed species occurrences should reflect the realized niche when additional processes like dispersal and local extinction lags do not have overwhelming effects. Despite the foundational nature of these ideas, quantitative assessments of the relationship between range-wide demographic performance and occurrence probability have not been made. This assessment is needed both to improve our conceptual understanding of species' niches and ranges and to develop reliable mechanistic models of species geogr

SUBMITTER: Thuiller W 

PROVIDER: S-EPMC4338510 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature