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Título : Factors determining the distribution and betadiversity of mesozooplankton species in shelf and coastal waters of the Bay of Biscay
Autor : Irigoien, Xabier; Chust, Guillem; Fernandes, Jose A.; Zarauz, Lucia; Albaina, Aitor
Citación : JOURNAL OF PLANKTON RESEARCH, 2011, 33, 1182-1192
Resumen : In this study, we analysed the factors explaining the distribution and betadiversity of mesozooplankton species in shelf and coastal areas in the Bay of Biscay. Nonparametric multiplicative regression models showed that for 35\% of the 26 species analysed, the geographical position was the main factor explaining distribution. The variation partitioning results of the betadiversity analysis indicate that niche adaptation (12-25\%) and dispersal limitation (14-15\%) influence the distribution of mesozooplankton species equally. Therefore, most of the variance (57-66\%) remains unexplained suggesting there are other explaining factors not controlled or that a part of the variability is purely stochastic. A log-normal distribution fitted the species rank-abundance better than Hubbell's neutral model, which also indicates that the mesozooplankton distribution is not the result of pure neutral communities colonizing randomly from a large species pool. Overall, the combination of results suggests that mesozooplankton species have distribution centres that are often associated with geographical features, and from which they disperse randomly.
Palabras clave : mesozooplankton; habitat models; betadiversity; Bay of Biscay; VERTICAL MIGRATION BEHAVIOR; NEUTRAL THEORY; COMMUNITY STRUCTURE; NORTH-ATLANTIC; ZOOPLANKTON; BIODIVERSITY; PLANKTON; ECOLOGY; SEA; OCEANOGRAPHY
Fecha de publicación : 2011
Editorial : OXFORD UNIV PRESS
Tipo de documento: Article
Idioma: Inglés
DOI: 10.1093/plankt/fbr026
URI : http://dspace.azti.es/handle/24689/662
ISSN : 0142-7873
E-ISSN: 1464-3774
Patrocinador: FEP-Basque Country Government
Malaspina (Consolider-Ingenio) [CSD2008-00077]
Aparece en las tipos de publicación: Artículos científicos



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