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Geographic distance, water circulation and environmental conditions shape the biodiversity of Mediterranean rocky coasts

Rattray, Alex, Andrello, Marco, Asnaghi, Valentina, Bevilacqua, Stanislao, Bulleri, Fabio, Cebrian, Emma, Chiantore, Mariachiara, Claudet, Joachim, Deudero, Salud, Evans, Julian, Fraschetti, Simonetta, Guarnieri, Giuseppe, Mangialajo, Luisa, Schembri, Patrick J., Terlizzi, Antonio and Benedetti-Cecchi, Lisandro 2016, Geographic distance, water circulation and environmental conditions shape the biodiversity of Mediterranean rocky coasts, Marine ecology progress series, vol. 553, pp. 1-11, doi: 10.3354/meps11783.

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Title Geographic distance, water circulation and environmental conditions shape the biodiversity of Mediterranean rocky coasts
Author(s) Rattray, AlexORCID iD for Rattray, Alex orcid.org/0000-0002-8591-6688
Andrello, Marco
Asnaghi, Valentina
Bevilacqua, Stanislao
Bulleri, Fabio
Cebrian, Emma
Chiantore, Mariachiara
Claudet, Joachim
Deudero, Salud
Evans, Julian
Fraschetti, Simonetta
Guarnieri, Giuseppe
Mangialajo, Luisa
Schembri, Patrick J.
Terlizzi, Antonio
Benedetti-Cecchi, Lisandro
Journal name Marine ecology progress series
Volume number 553
Start page 1
End page 11
Total pages 11
Publisher Inter-Research
Place of publication Luhe, Germany
Publication date 2016-07-14
ISSN 0171-8630
1616-1599
Keyword(s) beta diversity
reefs
spatial variation
MPA
Lagrangian modelling
connectivity
Summary Ecological connectivity is important for effective marine planning and biodiversity conservation. Our aim was to identify factors important in influencing variation in benthic community structure on shallow rocky reefs in 2 regions of the Mediterranean Sea with contrasting oceanographic regimes. We assessed beta (β) diversity at 146 sites in the littoral and shallow sublittoral from the Adriatic/Ionian Seas (eastern region) and Ligurian/Tyrrhenian Seas (western region) using a null modelling approach to account for variation in species richness. The distance decay relationship between species turnover within each region and geographic distance by sea was determined using generalised linear models. Mantel tests were used to examine correlations between β?diversity and connectivity by ocean currents, estimated from Lagrangian dispersal simulations. Variation in β diversity between sites was partitioned according to environmental and spatial components using a distance-based redundancy approach. Species turnover along a gradient of geographic distance was greater by a factor of 3 to 5 in the western region than the eastern region, suggesting lower connectivity between sites. β diversity was correlated with connectivity by ocean currents at both depths in the eastern region but not in the western region. The influ-OPEN ACCESS ence of spatial and environmental predictors of β diversity varied considerably between regions, but was similar between depths. Our results highlight the interaction of oceanographic, spatial and environmental processes influencing benthic marine β diversity. Persistent currents in the eastern region may be responsible for lower observed β diversity compared to the western region, where patterns of water circulation are more variable.
Language eng
DOI 10.3354/meps11783
Field of Research 060205 Marine and Estuarine Ecology (incl Marine Ichthyology)
050202 Conservation and Biodiversity
0602 Ecology
0608 Zoology
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084964

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.