Large-Scale Spatio-Temporal Patterns of Mediterranean Cephalopod Diversity
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AuthorsKeller, S. (Stefanie); Bartolino, V. (Valerio); Hidalgo, M. (Manuel); Bitetto, I. (Isabella); Casciaro, L. (Loredana); Cuccu, D. (Danila); Esteban-Acón, A. (Antonio); García-Ruiz, C. (Cristina); Garofalo, G. (Germana); Josephides, M. (Marios); Jadaud, A. (Angeline); Lefkaditou, E. (Evgenia); Maiorano, P. (Porzia); Manfredi, C. (Chiara); Marceta, B. (Bojan); Massutí, E. (Enric); Micallef, R. (Reno); Peristeraki, P. (Panagiota); Relini, G. (Giulio); Sartor, P. (Paolo); Spedicato, M.T. (Maria Teresa); Tserpes, G. (George); Quetglas, A. (Antoni)
generalized additive models
bottom trawl surveys
Species diversity is widely recognized as an important trait of ecosystems’ functioning and resilience. Understanding the causes of diversity patterns and their interaction with the environmental conditions is essential in order to effectively assess and preserve existing diversity. While diversity patterns of most recurrent groups such as fish are commonly studied, other important taxa such as cephalopods have received less attention. In this work we present spatio-temporal trends of cephalopod diversity across the entire Mediterranean Sea during the last 19 years, analysing data from the annual bottom trawl survey MEDITS conducted by 5 different Mediterranean countries using standardized gears and sampling protocols. The influence of local and regional environmental variability in different Mediterranean regions is analysed applying generalized additive models, using species richness and the Shannon Wiener index as diversity descriptors. While the western basin showed a high diversity, ...
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