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dc.contributor.author
Irigoyen, Alejo Joaquin
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Trobbiani, Gastón Andres
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Sgarlatta, Maria P.
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Raffo, María Paula
dc.date.available
2019-05-20T15:23:19Z
dc.date.issued
2011-07
dc.identifier.citation
Irigoyen, Alejo Joaquin; Trobbiani, Gastón Andres; Sgarlatta, Maria P.; Raffo, María Paula; Effects of the alien algae Undaria pinnatifida (Phaeophyceae, Laminariales) on the diversity and abundance of benthic macrofauna in Golfo Nuevo (Patagonia, Argentina): Potential implications for local food webs; Springer; Biological Invasions; 13; 7; 7-2011; 1521-1532
dc.identifier.issn
1387-3547
dc.identifier.uri
http://hdl.handle.net/11336/76709
dc.description.abstract
Changes in macroalgal community structure caused by invasive seaweeds have strong impacts on the associated macrofauna due to the role of macroalgae as autogenic ecosystem engineers. This study investigates the effect of Undaria pinnatifida on the abundance and diversity of benthic macrofauna in Golfo Nuevo, northern Patagonia, using a manipulative experiment involving the systematic removal of Undaria microthalli from strips of hard bottom during its eighth-month growing period. Species richness and diversity were higher in plots covered by Undaria than when Undaria was removed. Also, the abundance of two species of crustaceans, one species of sea urchin, one species of nemertina and several species of polychaetes was higher. We attribute these effects to the provision of new habitat structure by Undaria, a larger and structurally more complex species than the local native seaweeds. These results support the hypothesis that complex habitats enhance abundance and species richness, by offering different shelter and foraging opportunities compared to morphologically simpler habitats. Based on a review of diet studies in the region, we speculate that Undaria could potentially produce a bottom-up effect on local food chains by increasing abundance of prey for a wide variety of predators, from invertebrates to marine mammals. While our study has a narrow temporal and spatial scale, we expect similar effects of Undaria on the macrofauna in other sites of the Argentine coast, especially those dominated by small native macroalgae.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Benthic Macrofauna
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Diversity
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Food Webs
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Invasive Seaweed
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Undaria Pinnatifida
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Effects of the alien algae Undaria pinnatifida (Phaeophyceae, Laminariales) on the diversity and abundance of benthic macrofauna in Golfo Nuevo (Patagonia, Argentina): Potential implications for local food webs
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-14T13:36:18Z
dc.identifier.eissn
1573-1464
dc.journal.volume
13
dc.journal.number
7
dc.journal.pagination
1521-1532
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Irigoyen, Alejo Joaquin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
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Fil: Trobbiani, Gastón Andres. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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Fil: Sgarlatta, Maria P.. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina
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Fil: Raffo, María Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
dc.journal.title
Biological Invasions
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/journal/10530/13/7
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10530-010-9910-9
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