Stage-dependent niche segregation: insights from a multi-dimensional approach of two sympatric sibling seabirds.

ABSTRACT: Niche theory predicts that to reduce competition for the same resource, sympatric ecologically similar species should exploit divergent niches and segregate in one or more dimensions. Seasonal variations in environmental conditions and energy requirements can influence the mechanisms and the degree of niche segregation. However, studies have overlooked the multi-dimensional aspect of niche segregation over the whole annual cycle, and key facets of species co-existence still remain ambiguous. The present study provides insights into the niche use and partitioning of two morphologically and ecologically similar seabirds, the common (CDP, Pelecanoides urinatrix) and the South Georgian diving petrel (SGDP, Pelecanoides georgicus). Using phenology, at-sea distribution, diving behavior and isoto

SUBMITTER: Fromant A 

PROVIDER: S-EPMC9309125 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature