Influence of local and landscape factors on distributional dynamics: a species-centred, fitness-based approach.

ABSTRACT: In spatially structured populations, distributional dynamics are driven by the quantity, connectivity and quality of habitat. Because these drivers are rarely measured directly and simultaneously at relevant scales, information on their relative importance remains unclear. I assessed the influence of both direct and indirect measures of local habitat quality, and of landscape habitat amount and connectivity on long-term territory occupancy dynamics of non-migratory pygmy owls. Direct measures of local habitat quality based on territory-specific reproductive output had greater effects on distribution than landscape factors, but only when spatio-temporal fluxes in performance linked to environmental stochasticity and intraspecific competition were considered. When habitat quality was measure

SUBMITTER: Flesch AD 

PROVIDER: S-EPMC5524508 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature