A null model to study community structure of microcrustacean assemblages in northern Chilean shallow lakes

De Los Ríos Escalante, Patricio

A null model to study community structure of microcrustacean assemblages in northern Chilean shallow lakes

dc.contributor.author	De Los Ríos Escalante, Patricio
dc.date	2011
dc.date.accessioned	2012-02-07T14:12:47Z
dc.date.available	2012-02-07T14:12:47Z
dc.date.issued	2012-02-07
dc.description.abstract	The inland water bodies of northern Chile (18-27°S) are characterized by high salinity levels and impoverished species richness. This study presents field observations of species associations sampled from shallow water bodies in the Antofagasta region of northern Chile (23°S). A species presenceabsence matrix was created for calculating the Jaccard Index of community similarity and for testing null models of species associations, with the aim of determining whether species associations, are random or not. The results of the Jaccard Index calculations indicated the existence of defined groups, including three sites with Artemia franciscana, two sites with Boeckella poopoensis, and a sixth site only containing the ostracod Sarscypridopsis aculeata. The results of the null model analysis denoted the presence of regulating factors only in fixed-fixed simulation, that is the most robust in comparison to the other two simulations that denoted absence of regulator factors in species associations. The Jaccard indices and significant null model analysis agree with previous ecological descriptions of salinity as a determinant of species associations, whereas the non-significant results of the other two simulations could be due to the low number of species reported. The ecology and biogeography of these communities are also discussed. © 2011 Koninklijke Brill NV, Leiden.	es
dc.format	PDF	es
dc.identifier.citation	Crustaceana, Vol.84, 5-6, 513-521, 2011	es
dc.identifier.doi	10.1163/001121611X579169	es
dc.identifier.uri	https://repositoriodigital.uct.cl/handle/10925/572
dc.language.iso	en	es
dc.source	Crustaceana	es
dc.subject	Ecosistemas acuáticos continentales	es
dc.subject	Limnología	es
dc.subject	Biogeografía	es
dc.subject	Fotobiología	es
dc.title	A null model to study community structure of microcrustacean assemblages in northern Chilean shallow lakes	es
dc.type	Artículo de Revista	es
uct.carrera	Ingeniería en Acuicultura	es
uct.carrera	Ingeniería en Recursos Naturales Renovables	es
uct.carrera	Medicina Veterinaria	es
uct.catalogador	aga	es
uct.comunidad	Recursos Naturales	es
uct.facultad	Facultad de Recursos Naturales	es
uct.indizacion	ISI	es