Biodiversity and ecology of hirudinea (<i>Annelida</i>) from the natural reserve of isla Martín García, Río de la Plata, Argentina

The Island of Martin Garcia lies at the confluence of the Uruguay and Paraná Rivers (upper Río de la Plata). This island is an outcrop of the crystalline basement. Due to basalt exploitation the island exhibits several ponds covered by carpets of free-floating macrophytes. Seven major environmental...

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Detalles Bibliográficos
Autores principales:	César, Inés Irma, Martin, Stella Maris, Gullo, Bettina Sandra, Liberto, Romina
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2009
Materias:	Ciencias Naturales environmental protection biodiversity CCA physiology cosmopolitan conservation of natural resources ecology Annelida Helobdella endemics leeches biodiversidade cosmopolitas ecologia endêmicos sanguessuga
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/38167 http://www.scielo.br/pdf/bjb/v69n4/v69n4a14.pdf
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-38167
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Naturales environmental protection biodiversity CCA physiology cosmopolitan conservation of natural resources ecology Annelida Helobdella endemics leeches biodiversidade cosmopolitas ecologia endêmicos sanguessuga
spellingShingle	Ciencias Naturales environmental protection biodiversity CCA physiology cosmopolitan conservation of natural resources ecology Annelida Helobdella endemics leeches biodiversidade cosmopolitas ecologia endêmicos sanguessuga César, Inés Irma Martin, Stella Maris Gullo, Bettina Sandra Liberto, Romina Biodiversity and ecology of hirudinea (<i>Annelida</i>) from the natural reserve of isla Martín García, Río de la Plata, Argentina
topic_facet	Ciencias Naturales environmental protection biodiversity CCA physiology cosmopolitan conservation of natural resources ecology Annelida Helobdella endemics leeches biodiversidade cosmopolitas ecologia endêmicos sanguessuga
description	The Island of Martin Garcia lies at the confluence of the Uruguay and Paraná Rivers (upper Río de la Plata). This island is an outcrop of the crystalline basement. Due to basalt exploitation the island exhibits several ponds covered by carpets of free-floating macrophytes. Seven major environmental variables were measured: water and air temperature, percentage of oxygen saturation, dissolved oxygen, electrical conductivity, total dissolved solids and pH. Eleven leech species were found, <i>Helobdella striata</i>, <i>H. diploides</i>, <i>H. adiastola</i> and <i>H. hyalina</i> were new records. UPGMA clustering of species based on their occurrence in different ecological conditions revealed three main species groups. Canonical Correspondence Analysis (CCA) explained 97.2% of the correlation between species and environmental variables. <i>H. triserialis</i> shows the widest range of tolerance, <i>H. hyalina</i> shows positive relationships to conductivity; <i>H. diploides</i> shows a high correlation with dissolved oxygen, <i>H. striata</i>, <i>H. lineata</i>, and <i>S. similis</i> are negatively correlated with water temperature, and <i>H. simplex</i> is positively correlated with pH. Relationships between the species richness (S) and the sampling sites were negatively correlated with water temperature and positively correlated with dissolved oxygen. Leech biodiversity from the water bodies of Martín García Island, shows a great diversity of species and a wide plasticity regarding the characteristics of the environmental factors considered.
format	Articulo Articulo
author	César, Inés Irma Martin, Stella Maris Gullo, Bettina Sandra Liberto, Romina
author_facet	César, Inés Irma Martin, Stella Maris Gullo, Bettina Sandra Liberto, Romina
author_sort	César, Inés Irma
title	Biodiversity and ecology of hirudinea (<i>Annelida</i>) from the natural reserve of isla Martín García, Río de la Plata, Argentina
title_short	Biodiversity and ecology of hirudinea (<i>Annelida</i>) from the natural reserve of isla Martín García, Río de la Plata, Argentina
title_full	Biodiversity and ecology of hirudinea (<i>Annelida</i>) from the natural reserve of isla Martín García, Río de la Plata, Argentina
title_fullStr	Biodiversity and ecology of hirudinea (<i>Annelida</i>) from the natural reserve of isla Martín García, Río de la Plata, Argentina
title_full_unstemmed	Biodiversity and ecology of hirudinea (<i>Annelida</i>) from the natural reserve of isla Martín García, Río de la Plata, Argentina
title_sort	biodiversity and ecology of hirudinea (<i>annelida</i>) from the natural reserve of isla martín garcía, río de la plata, argentina
publishDate	2009
url	http://sedici.unlp.edu.ar/handle/10915/38167 http://www.scielo.br/pdf/bjb/v69n4/v69n4a14.pdf
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Biodiversity and ecology of hirudinea (<i>Annelida</i>) from the natural reserve of isla Martín García, Río de la Plata, Argentina

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