Improving stable isotope assessments of inter- and intra-species variation in coral reef fish trophic strategies

Autor:	Jonathan D. Cybulski, Christina Skinner, Zhongyue Wan, Carmen K. M. Wong, Robert J. Toonen, Michelle R. Gaither, Keryea Soong, Alex S. J. Wyatt, David M. Baker
Rok vydání:	2022
Předmět:	Ecology Ecology Evolution Behavior and Systematics Nature and Landscape Conservation
Zdroj:	Ecology and evolution. 12(9)
ISSN:	2045-7758
Popis:	Fish have one of the highest occurrences of individual specialization in trophic strategies among Eukaryotes. Yet, few studies characterize this variation during trophic niche analysis, limiting our understanding of aquatic food web dynamics. Stable isotope analysis (SIA) with advanced Bayesian statistics is one way to incorporate this individual trophic variation when quantifying niche size. However, studies using SIA to investigate trophodynamics have mostly focused on species- or guild-level (i.e., assumed similar trophic strategy) analyses in settings where source isotopes are well-resolved. These parameters are uncommon in an ecological context. Here, we use Stable Isotope Bayesian Ellipses in R (SIBER) to investigate cross-guild trophodynamics of 11 reef fish species within an oceanic atoll. We compared two- (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff03400dc1b3b2cfb2b73aa8e398663d https://pubmed.ncbi.nlm.nih.gov/36172294 Zobrazit plný text záznamu Plný text