Feeding ecology of three species of Astropecten (Asteroidea) coexisting on shallow sandy bottoms of the northwestern Mediterranean Sea
15 pages, 4 figures, 4 tables
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2013-11
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| Online Access: | http://hdl.handle.net/10261/89085 |
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dig-icm-es-10261-890852020-12-09T16:51:39Z Feeding ecology of three species of Astropecten (Asteroidea) coexisting on shallow sandy bottoms of the northwestern Mediterranean Sea Baeta, Marc Ramón, Montserrat 15 pages, 4 figures, 4 tables Predation and competition are important biotic interactions influencing populations and communities in marine soft sediments. Sea stars are ubiquitous predators with diverse diets that play functionally important roles in the benthos. In this study, we examined the diet and the ecological roles of three sympatric species of the genus Astropecten (A. aranciacus, A. irregularis pentacanthus and A. platyacanthus). The study was performed between March 2010 and February 2011 on the Maresme coast (northwestern Mediterranean Sea). Results showed that their main diet consisted on gastropods and bivalves, such as Glycymeris glycymeris, Callista chione, Gibbula guttadauri and Cyclope neritea. Food competition between species was avoided by partition of prey resources. Intraspecific differences in the dietary compositions between seasons were found, but not between size classes. Ontogenetic patterns of prey size consumption were recognized in the three species. A large diet overlap was detected between A. aranciacus and A. platyacanthus in winter, due to changes in prey availability. Nevertheless, the analysis of the infaunal community composition and stomach contents indicated that food selection was not associated with prey availability. © 2013 Springer-Verlag Berlin Heidelberg Peer Reviewed 2014-01-03T13:26:08Z 2014-01-03T13:26:08Z 2013-11 2014-01-03T13:26:08Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1007/s00227-013-2270-0 issn: 0025-3162 e-issn: 1432-1793 Marine Biology 160(11): 2781-2795 (2013) http://hdl.handle.net/10261/89085 10.1007/s00227-013-2270-0 en https://doi.org/10.1007/s00227-013-2270-0 none Springer |
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| language |
English |
| description |
15 pages, 4 figures, 4 tables |
| format |
artículo |
| author |
Baeta, Marc Ramón, Montserrat |
| spellingShingle |
Baeta, Marc Ramón, Montserrat Feeding ecology of three species of Astropecten (Asteroidea) coexisting on shallow sandy bottoms of the northwestern Mediterranean Sea |
| author_facet |
Baeta, Marc Ramón, Montserrat |
| author_sort |
Baeta, Marc |
| title |
Feeding ecology of three species of Astropecten (Asteroidea) coexisting on shallow sandy bottoms of the northwestern Mediterranean Sea |
| title_short |
Feeding ecology of three species of Astropecten (Asteroidea) coexisting on shallow sandy bottoms of the northwestern Mediterranean Sea |
| title_full |
Feeding ecology of three species of Astropecten (Asteroidea) coexisting on shallow sandy bottoms of the northwestern Mediterranean Sea |
| title_fullStr |
Feeding ecology of three species of Astropecten (Asteroidea) coexisting on shallow sandy bottoms of the northwestern Mediterranean Sea |
| title_full_unstemmed |
Feeding ecology of three species of Astropecten (Asteroidea) coexisting on shallow sandy bottoms of the northwestern Mediterranean Sea |
| title_sort |
feeding ecology of three species of astropecten (asteroidea) coexisting on shallow sandy bottoms of the northwestern mediterranean sea |
| publisher |
Springer |
| publishDate |
2013-11 |
| url |
http://hdl.handle.net/10261/89085 |
| work_keys_str_mv |
AT baetamarc feedingecologyofthreespeciesofastropectenasteroideacoexistingonshallowsandybottomsofthenorthwesternmediterraneansea AT ramonmontserrat feedingecologyofthreespeciesofastropectenasteroideacoexistingonshallowsandybottomsofthenorthwesternmediterraneansea |
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1777666016133775360 |