SIZE-SPECIFIC REPRODUCTIVE PARAMETERS IN RED ALGAE - A COMPARATIVE-ANALYSIS FOR 2 SYMPATRIC SPECIES FROM CENTRAL CHILE

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dc.contributor.authorCAMUS, PA
dc.date.accessioned2025-01-23T19:22:00Z
dc.date.available2025-01-23T19:22:00Z
dc.date.issued1992
dc.description.abstractAhnfeltia durvillaei and Gymnogongrus furcellatus, two intertidal red algae from central Chile, often grow sympatrically and their gametophytic phases are dominant in the field, but recruitment is low. A short-term comparative analysis of the reproductive behavior of their gametophytes was carried out to determine quantitative levels of reproduction and their degree of functional similarity. Size, rather than age, was evaluated as predictor of fecundity. Both species showed the same qualitative patterns, although maintaining quantitative differences. Reproductive plants were recorded throughout the size range, and fecundity increased continuously and directly with size. A size-independent threshold in reproductive effort was found for each species, and the variance of effort values decreased inversely with size. Vertical, size-specific life tables revealed low dependence of survivorship with size, and reproductive values exhibited a maximum at the same size class for both species. This last pattern, and a negative relationship found between fecundity and survivorship, suggest the existence of costs or trade-offs operating at the phenotypic level, but they would not be supported in a selective context.
dc.fuente.origenWOS
dc.identifier.eissn1432-1939
dc.identifier.issn0029-8549
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/98931
dc.identifier.wosidWOS:A1992KC35700018
dc.issue.numero3
dc.language.isoen
dc.pagina.final456
dc.pagina.inicio450
dc.revistaOecologia
dc.rightsacceso restringido
dc.subjectALGAL LIFE HISTORY
dc.subjectSIZE
dc.subjectFECUNDITY
dc.subjectMAXIMIZATION
dc.subjectTRADE-OFF
dc.subject.ods13 Climate Action
dc.subject.ods15 Life on Land
dc.subject.ods14 Life Below Water
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa14 Vida submarina
dc.titleSIZE-SPECIFIC REPRODUCTIVE PARAMETERS IN RED ALGAE - A COMPARATIVE-ANALYSIS FOR 2 SYMPATRIC SPECIES FROM CENTRAL CHILE
dc.typeartículo
dc.volumen92
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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