Interspecific differences in the phenotypic plasticity of intertidal barnacles in response to habitat changes

JOURNAL OF CRUSTACEAN BIOLOGY;
J. Crustac. Biol.

dc.creatorLópez-Stefoni, Daniel
dc.creatorLópez-Arriagada, Boris
dc.creatorGuaitro, Sandra
dc.creatorRamírez, Roxana
dc.date2017-04-27T18:53:27Z
dc.date2022-07-07T02:26:26Z
dc.date2017-04-27T18:53:27Z
dc.date2022-07-07T02:26:26Z
dc.date2010
dc.date.accessioned2023-08-22T23:34:47Z
dc.date.available2023-08-22T23:34:47Z
dc.identifier0
dc.identifierD03I1116
dc.identifierD03I1116
dc.identifierWOS:000278969000002
dc.identifier0278-0372
dc.identifierhttps://hdl.handle.net/10533/197894
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8351706
dc.descriptionWe evaluate the morphological variation of cirri of two intertidal bamacles in response to different wave-exposure regimes and population densities during growth. Length, diameter and number of segments of the third and sixth cirri were determined in Jell has clown's and Notochthamalus scabrosus, two dominant sympatric species in the rocky intertidal zone of Chile. Aggregated and isolated individuals of both species were collected in two coastal localities. Reciprocal transplant experiments were undertaken between wave-protected and wave-exposed zones, in addition to experimental modification of density during growth. For both species, individuals inhabiting wave-protected zones had cirri that were longer, thinner, with a greater number of segments, than in those inhabiting wave-exposed zones. The sixth cirri of J. eirratus were longer, thicker and had more segments in specimens growing at high densities, than in individuals growing in isolation. In N. scabrosus, no density dependent effects were observed in cirral structure. Thus, phenotypic responses differed between species, depending on the morphometric or meristic variable of the cirral pair evaluated. Forty-five days after J. eirratus density conditions and wave-exposure regime were modified in the transplant experiments, changes were observed in cirral length, diameter, and number of cirral segments. No modification was observed in the cirral characteristics over time in specimens whose density was artificially reduced during growth. Results indicate that morphological structures associated with filtration and respiration, vary according to density and degree of wave-exposure. We suggest that cirral phenotypic variability can serve as an adaptive mechanism associated with the changing availability and access to food and contributes to explaining the success of these organisms in environments with high spatial-temporal fluctuations in biotic and abiotic factors.
dc.descriptionThis study was financed by project N 00205F and N 0109, Research Department of the Universidad de Los Lagos and FONDEF Project D0311116. The collaboration of Claudio Sepelveda, Alexis Santibariez, Sergio Arriagada, Veronica Diaz, Daniela Perez and Jose Uribe, in field activities is gratefully acknowledged, as is the assistance of Susan Angus in the translation of the manuscript. Finally, our thanks to the two anonymous referees, whose comments contributed to improving the manuscript.
dc.description5
dc.descriptionFONDEF
dc.descriptionborislop@ulagos.cl; rramirez@ulagos.cl; sguaitro@ulagos.cl; dlopez@ulagos.cl
dc.descriptionResearch Department of the Universidad de Los Lagos [N 00205F, N 0109]; FONDEF [D0311116]
dc.description3
dc.descriptionFONDEF
dc.description30
dc.languageENG
dc.publisherCRUSTACEAN SOC
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.relationinfo:eu-repo/grantAgreement/Fondef/D03I1116
dc.relationinfo:eu-repo/semantics/dataset/hdl.handle.net/10533/93477
dc.relationhttps://doi.org/10.1651/09-3211.1
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleInterspecific differences in the phenotypic plasticity of intertidal barnacles in response to habitat changes
dc.titleJOURNAL OF CRUSTACEAN BIOLOGY
dc.titleJ. Crustac. Biol.
dc.typeArticulo
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.coverageSAN ANTONIO


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