Modeling trends from North American breeding bird survey data: a spatially explicit approach.

ABSTRACT: Population trends, defined as interval-specific proportional changes in population size, are often used to help identify species of conservation interest. Efficient modeling of such trends depends on the consideration of the correlation of population changes with key spatial and environmental covariates. This can provide insights into causal mechanisms and allow spatially explicit summaries at scales that are of interest to management agencies. We expand the hierarchical modeling framework used in the North American Breeding Bird Survey (BBS) by developing a spatially explicit model of temporal trend using a conditional autoregressive (CAR) model. By adopting a formal spatial model for abundance, we produce spatially explicit abundance and trend estimates. Analyses based on large-scale geo

SUBMITTER: Bled F 

PROVIDER: S-EPMC3862490 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature