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| BROITMAN,BERNARDO R; VÉLIZ,FREDY; MANZUR,TATIANA; WIETERS,EVIE A; RANDALL FINKE,G; FORNES,PAULINA A; VALDIVIA,NELSON; NAVARRETE,SERGIO A. |
| Along the coast of central Chile, geographic trends of diversity have been inferred from literature compilations and museum collections based on species range limits for some taxonomic groups. However, spatially-intensive field-based assessments of macrobenthic species richness are largely missing. Over the course of a multiyear study (1998-2005), we characterized latitudinal patterns of rocky intertidal diversity at 18 sites along the coast of central Chile (29-36° S). At each site, the number of sessile and mobile macrobenthic species was quantified in 0.25 m² quadrats. Two estimators of local (alpha) diversity were used: observed local species richness, calculated from the asymptote of a species-rarefaction curve, and the Chao2 index, which takes into... |
| Tipo: Journal article |
Palavras-chave: Biological diversity; Intertidal ecology; Latitudinal diversity gradient; Species richness. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2011000100011 |
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| HINOJOSA,IVÁN; BOLTAÑA,SEBASTIÁN; LANCELLOTTI,DOMINGO; MACAYA,ERASMO; UGALDE,PABLA; VALDIVIA,NELSON; VÁSQUEZ,NELSON; NEWMAN,WILLIAM A; THIEL,MARTIN. |
| The majority of zoogeographic studies along the Chilean Pacific coast have focused on benthic organisms and oceanographic conditions are considered the main factors influencing their distributions. Herein we examined the geographic distribution of pelagic barnacles of the family Lepadidae collected from floating macroalgae at seven sampling areas between 23 and 50° S. Four species were encountered and they are briefly described herein. The most abundant northern species was Lepas anatifera, and it diminished in abundance towards the south (33° S). Moreover, this species was not found in waters with a sea surface temperature (SST) of less than ~18 °C. Lepas australis, primarily a circumpolar West Wind Drift species, diminished in abundance towards the north... |
| Tipo: Journal article |
Palavras-chave: Zoogeography; Lepas; Oceanography; Pelagic; Cirripedia. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000100002 |
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