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Consistent patterns of spatial variability between NE Atlantic and Mediterranean rocky shores

Abstract: Examining how variability in population abundance and distribution is allotted among different spatial scales can inform of processes that are likely to generate that variability. Results of studies dealing with scale issues in marine benthic communities suggest that variability is concentrated at small spatial scales (from tens of centimetres to few metres) and that spatial patterns of variation are consistent across ecosystems characterized by contrasting physical and biotic conditions, but this has not been formally tested. Here we quantified the variability in the distribution of intertidal rocky shore communities at a range of spatial scales, from tens of centimetres to thousands of kilometres, both in the NE Atlantic and the Mediterranean, and tested whether the observed patterns differed between the two basins. We focused on canopy-forming macroalgae and associated understorey assemblages in the low intertidal, and on the distribution of Patella limpets at mid intertidal levels. Our results highlight that patterns of spatial variation, at each scale investigated, were consistent between the Atlantic and the Mediterranean, suggesting that similar ecological processes operate in these regions. In contrast with former studies, variability in canopy cover, species richness and limpet abundance was equally distributed among spatial scales, possibly reflecting the fingerprint of multiple processes. Variability in community structure of low intertidal assemblages, instead, peaked at the largest scale, suggesting that oceanographic processes and climatic gradients may be important. We conclude that formal comparisons of variability across scales nested in contrasting systems are needed, before any generalization on patterns and processes can be made.

 Congreso: European Marine Biology Symposium (50th : 2015 : Helgoland)

Editorial: Journal of the Marine Biological Association of the United Kingdom

 Fecha de publicación: 01/05/2017

Nº de páginas: 9

Tipo de publicación: Comunicación a Congreso

DOI: 10.1017/S0025315416001491

ISSN: 0025-3154,1469-7769

Url de la publicación: https://www.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/consistent-patterns-of-spatial-variability-between-ne-atlantic-and-mediterranean-rocky-shores/77D18C4C86B0227CE921FEDEC9D0A675

Autores/as

DAL BELLO, MARTINA

LECLERC, JEAN-CHARLES

BENEDETTI-CECCHI, LISANDRO

ARVANITIDIS, CHRISTOS

VAN AVESAATH, PIM

BACHELET, GUY

BOJANIC, NATALIA

COMO, SERENA

COPPA, STEFANIA

COUGHLAN, JENNIFER

CROWE, TASMAN

DEGRAER, STEVEN

ESPINOSA, FREE

FAULWETTER, SARAH

FROST, MATT

XABIER GUINDA SALSAMENDI

JANKOWSKA, EMILIA

JOURDE, JÉRÔME

KERCKHOF, FRANCIS

KOTTA, JONNE

LAVESQUE, NICOLAS

ANDREA DE LUCIA, GIUSEPPE

MAGNI, PAOLO

ORAV-KOTTA, HELEN

PAVLOUDI, CHRISTINA

PEDROTTI, MARIA LUIZA

RIGAUT-JALABERT, FABIENNE

RILOV, GIL

ROUSOU, MARIA

RUBAL, MARCOS

RUGINIS, TOMAS

PÉREZ-RUZAFA, ANGEL

SILVA, TERESA

SIMON, NATHALIE

SOUSA-PINTO, ISABEL

TRONCOSO, JESÚS

WARZOCHA, JAN

WESLAWSKI, JAN MARCIN

HUMMEL, HERMAN