Relationships between biodiversity and the stability of marine ecosystems: Comparisons at a European scale using meta-analysis

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

Mathieu Cusson (Autor) Outra; Tasman P Crowe (Autor) Outra; Rita Araujo (Autor) Outra; Francisco Arenas (Autor) Outra; Rebbecca Aspden (Autor) Outra; Fabio Bulleri (Autor) Outra; Dominique Davoult (Autor) Outra; Kirstie Dyson (Autor) Outra; Simonetta Fraschetti (Autor) Outra; Kristjan Herkuel (Autor) Outra; Cedric Hubas (Autor) Outra; Stuart Jenkins (Autor) Outra; Jonne Kotta (Autor) Outra; Patrik Kraufvelin (Autor) Outra; Aline Migne (Autor) Outra; Markus Molis (Autor) Outra; Olwyen Mulholland (Autor) Outra; Laure L J Noel (Autor) Outra; David M Paterson (Autor) Outra; James Saunders (Autor) Outra; Paul J Somerfield (Autor) Outra; Isabel Sousa Pinto (Autor) FCUP; Nicolas Spilmont (Autor) Outra; Antonio Terlizzi (Autor) Outra; Lisandro Benedetti Cecchi (Autor) Outra

Revista

Título: Journal of Sea Research

Vol. 98

Páginas: 5-14

ISSN: 1385-1101

Editora: Elsevier

Indexação

ISI Web of Knowledge - 13 Citações

Scopus - 13 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da terra e ciências do ambiente

Outras Informações

ID Authenticus: P-00G-2J6

DOI: 10.1016/j.seares.2014.08.004

Abstract (EN): The relationship between biodiversity and stability of marine benthic assemblages was investigated through meta-analyses using existing data sets (n = 28) covering various spatial (m-km) and temporal (1973-2006; ranging from 5 to >250 months) scales in different benthic habitats (emergent rock, rock pools and sedimentary habitats) over different European marine systems (North Atlantic and western Mediterranean). Stability was measured by a lower variability in time, and variability was estimated as temporal variance of species richness, total abundance (density or % cover) and community structure (using Bray-Curtis dissimilarities on species composition and abundance). Stability generally decreased with species richness. Temporal variability in species richness increased with the number of species at both quadrat (<1 m(2)) and site (similar to 100 m(2)) scales, while no relationship was observed by multivariate analyses. Positive relationships were also observed at the scale of site between temporal variability in species richness and variability in community structure with evenness estimates. This implies that the relationship between species richness or evenness and species richness variability is slightly positive and depends on the scale of observation. Thus, species richness does not stabilize temporal fluctuations in species number, rather species rich assemblages are those most likely to undergo the largest fluctuations in species numbers and abundance from time to time. Changes within community assemblages in terms of structure are, however, generally independent of biodiversity. Except for sedimentary and rock pool habitats, no relationship was observed between temporal variation of total abundances and diversity at either scale. Overall, our results emphasize that the relation between species richness and species-level measures of temporal variability depends on scale of measurements, type of habitats and the marine system (North Atlantic and Mediterranean) considered. (C) 2014 Elsevier B.V. All rights reseived.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10