Ecological contributions to the biogeography of the Mendoza province

All the available up to date Information about the herpetofauna and the avifauna of the Province of Mendoza was analyzed in the present paper.Data about the 56 species of amphibians and reptiles, and the 274 species of birds of Mendoza were used to construct three contour maps showing respectively t...

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Autores principales: Roig, Virgilio Germán, Contreras, Julio Rafael
Formato: Artículo revista
Lenguaje:Español
Publicado: Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) 2025
Acceso en línea:https://revistas.unne.edu.ar/index.php/eco/article/view/8244
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Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
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spelling I48-R154-article-82442025-05-21T15:17:09Z Ecological contributions to the biogeography of the Mendoza province Aportes ecológicos para la biogeografía de la provincia de Mendoza Roig, Virgilio Germán Contreras, Julio Rafael All the available up to date Information about the herpetofauna and the avifauna of the Province of Mendoza was analyzed in the present paper.Data about the 56 species of amphibians and reptiles, and the 274 species of birds of Mendoza were used to construct three contour maps showing respectively the isogramic pattern of the herpetofauna, and the faunas of non-passerine and passerine birds. The species density contours were traced superposing a rectangular grid with quadrates of 100 kilometers each side to a map of the Province of Mendoza. The total number of species of the three considered taxa were expresed in each quadrate, and then the isograms were traced connecting the interpolated points with the same density valué at a defined interval. The basic patterns of the three isogramic maps are almost the same.The maps also show the gradual decline in the number of species westward from the great diversity of the east región (the Monte), and the presence of fronts of exceptionally rapid changes in species density at the foot of the Precordilleran mountains and on the east side of the plateau of Payunia, revealing the existence of geographical and ecological barriers separating the recognized previously Andean and Central faunistic areas.The derived pattern of biotic composition shows remarkable resemblance to the faunal subdivisions proposed by earlier workers who used non quantitative methods for the classification.In spite of having incomplete data, and the lack of more precise knowledge of systematics, ecology and geographical range of many considered species, this is the first quantitative approach to the biogeography of Mendoza Province. Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) 2025-05-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://revistas.unne.edu.ar/index.php/eco/article/view/8244 Ecosur; 1975: vol. 2, no. 4; 185-217 0325-108X spa https://revistas.unne.edu.ar/index.php/eco/article/view/8244/7829 https://creativecommons.org/licenses/by-nc/4.0
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Español
format Artículo revista
author Roig, Virgilio Germán
Contreras, Julio Rafael
spellingShingle Roig, Virgilio Germán
Contreras, Julio Rafael
Ecological contributions to the biogeography of the Mendoza province
author_facet Roig, Virgilio Germán
Contreras, Julio Rafael
author_sort Roig, Virgilio Germán
title Ecological contributions to the biogeography of the Mendoza province
title_short Ecological contributions to the biogeography of the Mendoza province
title_full Ecological contributions to the biogeography of the Mendoza province
title_fullStr Ecological contributions to the biogeography of the Mendoza province
title_full_unstemmed Ecological contributions to the biogeography of the Mendoza province
title_sort ecological contributions to the biogeography of the mendoza province
description All the available up to date Information about the herpetofauna and the avifauna of the Province of Mendoza was analyzed in the present paper.Data about the 56 species of amphibians and reptiles, and the 274 species of birds of Mendoza were used to construct three contour maps showing respectively the isogramic pattern of the herpetofauna, and the faunas of non-passerine and passerine birds. The species density contours were traced superposing a rectangular grid with quadrates of 100 kilometers each side to a map of the Province of Mendoza. The total number of species of the three considered taxa were expresed in each quadrate, and then the isograms were traced connecting the interpolated points with the same density valué at a defined interval. The basic patterns of the three isogramic maps are almost the same.The maps also show the gradual decline in the number of species westward from the great diversity of the east región (the Monte), and the presence of fronts of exceptionally rapid changes in species density at the foot of the Precordilleran mountains and on the east side of the plateau of Payunia, revealing the existence of geographical and ecological barriers separating the recognized previously Andean and Central faunistic areas.The derived pattern of biotic composition shows remarkable resemblance to the faunal subdivisions proposed by earlier workers who used non quantitative methods for the classification.In spite of having incomplete data, and the lack of more precise knowledge of systematics, ecology and geographical range of many considered species, this is the first quantitative approach to the biogeography of Mendoza Province.
publisher Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste)
publishDate 2025
url https://revistas.unne.edu.ar/index.php/eco/article/view/8244
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first_indexed 2025-06-17T05:00:36Z
last_indexed 2025-06-17T05:00:36Z
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