A NULL MODEL FOR EXPLAIN CRUSTACEAN ZOOPLANKTON SPECIES ASSOCIATIONS IN CENTRAL AND SOUTHERN PATAGONIAN INLAND WATERS

The zooplankton assemblages in water bodies of central and southern Chilean Patagonia, is characterized by high endemism and a relative low species richness, the main regulator factor would be the conductivity and trophic status of their habitats. The aim of the present study was analyze published a...

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Autor principal:	De los Ríos,Patricio
Lenguaje:	English
Publicado:	Universidad de Magallanes 2008
Materias:	zooplankton Boeckella Branchinecta Daphnia lakes ponds null model
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-686X2008000100002
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id	oai:scielo:S0718-686X2008000100002
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spelling	oai:scielo:S0718-686X20080001000022018-09-05A NULL MODEL FOR EXPLAIN CRUSTACEAN ZOOPLANKTON SPECIES ASSOCIATIONS IN CENTRAL AND SOUTHERN PATAGONIAN INLAND WATERSDe los Ríos,Patricio zooplankton Boeckella Branchinecta Daphnia lakes ponds null model The zooplankton assemblages in water bodies of central and southern Chilean Patagonia, is characterized by high endemism and a relative low species richness, the main regulator factor would be the conductivity and trophic status of their habitats. The aim of the present study was analyze published and unpublished information about crustacean zooplankton in central and southern Chilean Patagonian lakes and ponds (44 - 53g S). To these data was applied the species / genera ratio, and also, a null mo-del analysis for species co-occurrence, based in a presence-absence species matrix, for determine the existence of random factors as regulator factors of species associations. Finally, it was applied a Jaccard index for determine potential similarities in species associations for site. The results revealed low species number in large and deep lakes, whereas in small shallow permanent and ephemeral ponds had high species number, and low value in the species genera / ratio. The results of null model revealed the absence of random factors as regulators of species associations for two of three simulations, and the results of Jaccard index denoted the existence of three main groups based in the species associations of sites. These results agree with ecological information for southern Patagonia. Ecological and biogeographical topics are discussed.info:eu-repo/semantics/openAccessUniversidad de MagallanesAnales del Instituto de la Patagonia v.36 n.1 20082008-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-686X2008000100002en10.4067/S0718-686X2008000100002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	zooplankton Boeckella Branchinecta Daphnia lakes ponds null model
spellingShingle	zooplankton Boeckella Branchinecta Daphnia lakes ponds null model De los Ríos,Patricio A NULL MODEL FOR EXPLAIN CRUSTACEAN ZOOPLANKTON SPECIES ASSOCIATIONS IN CENTRAL AND SOUTHERN PATAGONIAN INLAND WATERS
description	The zooplankton assemblages in water bodies of central and southern Chilean Patagonia, is characterized by high endemism and a relative low species richness, the main regulator factor would be the conductivity and trophic status of their habitats. The aim of the present study was analyze published and unpublished information about crustacean zooplankton in central and southern Chilean Patagonian lakes and ponds (44 - 53g S). To these data was applied the species / genera ratio, and also, a null mo-del analysis for species co-occurrence, based in a presence-absence species matrix, for determine the existence of random factors as regulator factors of species associations. Finally, it was applied a Jaccard index for determine potential similarities in species associations for site. The results revealed low species number in large and deep lakes, whereas in small shallow permanent and ephemeral ponds had high species number, and low value in the species genera / ratio. The results of null model revealed the absence of random factors as regulators of species associations for two of three simulations, and the results of Jaccard index denoted the existence of three main groups based in the species associations of sites. These results agree with ecological information for southern Patagonia. Ecological and biogeographical topics are discussed.
author	De los Ríos,Patricio
author_facet	De los Ríos,Patricio
author_sort	De los Ríos,Patricio
title	A NULL MODEL FOR EXPLAIN CRUSTACEAN ZOOPLANKTON SPECIES ASSOCIATIONS IN CENTRAL AND SOUTHERN PATAGONIAN INLAND WATERS
title_short	A NULL MODEL FOR EXPLAIN CRUSTACEAN ZOOPLANKTON SPECIES ASSOCIATIONS IN CENTRAL AND SOUTHERN PATAGONIAN INLAND WATERS
title_full	A NULL MODEL FOR EXPLAIN CRUSTACEAN ZOOPLANKTON SPECIES ASSOCIATIONS IN CENTRAL AND SOUTHERN PATAGONIAN INLAND WATERS
title_fullStr	A NULL MODEL FOR EXPLAIN CRUSTACEAN ZOOPLANKTON SPECIES ASSOCIATIONS IN CENTRAL AND SOUTHERN PATAGONIAN INLAND WATERS
title_full_unstemmed	A NULL MODEL FOR EXPLAIN CRUSTACEAN ZOOPLANKTON SPECIES ASSOCIATIONS IN CENTRAL AND SOUTHERN PATAGONIAN INLAND WATERS
title_sort	null model for explain crustacean zooplankton species associations in central and southern patagonian inland waters
publisher	Universidad de Magallanes
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-686X2008000100002
work_keys_str_mv	AT delosriospatricio anullmodelforexplaincrustaceanzooplanktonspeciesassociationsincentralandsouthernpatagonianinlandwaters AT delosriospatricio nullmodelforexplaincrustaceanzooplanktonspeciesassociationsincentralandsouthernpatagonianinlandwaters
_version_	1714205666839625728

A NULL MODEL FOR EXPLAIN CRUSTACEAN ZOOPLANKTON SPECIES ASSOCIATIONS IN CENTRAL AND SOUTHERN PATAGONIAN INLAND WATERS

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