Times and partners are a-changin': relationships between declining food abundance, breeding success, and divorce in a monogamous seabird species.

ABSTRACT: Seabirds exhibit considerable adjustment capacity to cope with environmental changes during the breeding season and to maximize lifetime reproductive output. For example, divorce has been proposed to be an adaptive behavioral strategy in social monogamous species, as a response to poor conditions and low breeding success. Here, we studied divorce at the population and individual levels in northern gannets (Morus bassanus, hereafter gannets) nesting on Bonaventure island (Quebec, Canada). At the population level, we used Granger's method for detecting and quantifying temporal causality between time series (from 2009 to 2019) of divorce rate and breeding success of gannets (n = 809) and we evaluated the relationship between breeding success and biomass of their two principal pr

SUBMITTER: Pelletier D 

PROVIDER: S-EPMC8997194 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature