Influence of habitat suitability and sex-related detectability on density and population size estimates of habitat-specialist warblers.

ABSTRACT: Knowledge about the population size and trends of common bird species is crucial for setting conservation priorities and management actions. Multi-species large-scale monitoring schemes have often provided such estimates relying on extrapolation of relative abundances in particular habitats to large-scale areas. Here we show an alternative to inference-rich predictive models, proposing methods to deal with caveats of population size estimations in habitat-specialist species, reed warblers (Acrocephalus scirpaceus and Acrocephalus arundinaceus). Reed warblers were only found in pure reedbeds within riparian woodlands or in riparian vegetation scattered within or around reedbed patches, as expected according to their habitat specialization. The proportion of individuals located in reedbed as

SUBMITTER: Frias O 

PROVIDER: S-EPMC6066240 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature