Ecology of the avifauna of the región of Puerto Lobos, Provinces of Rio Negro and Chubut, Argentina

Ecologic and faunistic studies were carried out in the southwestem región of the Department of San Antonio (Province of Rio Negro) and in the northwest of the Department Biedma (Province of Chubut) during the months of January 1973 and 1974. Puerto Lobos, a small village in the Atlantic coast, at 42...

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Autor principal: 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/8246
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Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
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spelling I48-R154-article-82462025-05-22T12:41:05Z Ecology of the avifauna of the región of Puerto Lobos, Provinces of Rio Negro and Chubut, Argentina Ecología de la avifauna de la región de Puerto Lobos, provincias de Río Negro y del Chubut Contreras, Julio Rafael Ecologic and faunistic studies were carried out in the southwestem región of the Department of San Antonio (Province of Rio Negro) and in the northwest of the Department Biedma (Province of Chubut) during the months of January 1973 and 1974. Puerto Lobos, a small village in the Atlantic coast, at 42° S and 65° 05’ W, is the main locality in that región.The studied area is included in the Floristic Province of the Monte, and in the Zoogeographic Dominion of Patagonia, and is characterized by its aridity, with a permanent déficit of atmospheric saturation (50 to 55 o/o of mean relative humidity) and a mean annual rainfall of about 200 mm. The relief is characterized in the west side of the area by fíat plains of about 150 m high, decreasing eastward by gentle slopes or by steep slopes dissected by a disorganized and variable network of drainage gorges and dry streams, most of which are endorreic, ending in depresions or small basins of interior drainage with a salínized soil in the surface. Near the Atlantic coast the sea influence is shown by the penetration of tidal or occasionally flooded areas in the continental landscape.On the basis of the ecological distribution of the avifauna, nine difierent units were described, each one corresponding to a phisiographic characteristic type. Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) 2025-05-22 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/8246 Ecosur; 1978: vol. 5, no. 10; 169-181 0325-108X spa https://revistas.unne.edu.ar/index.php/eco/article/view/8246/7831 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 Contreras, Julio Rafael
spellingShingle Contreras, Julio Rafael
Ecology of the avifauna of the región of Puerto Lobos, Provinces of Rio Negro and Chubut, Argentina
author_facet Contreras, Julio Rafael
author_sort Contreras, Julio Rafael
title Ecology of the avifauna of the región of Puerto Lobos, Provinces of Rio Negro and Chubut, Argentina
title_short Ecology of the avifauna of the región of Puerto Lobos, Provinces of Rio Negro and Chubut, Argentina
title_full Ecology of the avifauna of the región of Puerto Lobos, Provinces of Rio Negro and Chubut, Argentina
title_fullStr Ecology of the avifauna of the región of Puerto Lobos, Provinces of Rio Negro and Chubut, Argentina
title_full_unstemmed Ecology of the avifauna of the región of Puerto Lobos, Provinces of Rio Negro and Chubut, Argentina
title_sort ecology of the avifauna of the región of puerto lobos, provinces of rio negro and chubut, argentina
description Ecologic and faunistic studies were carried out in the southwestem región of the Department of San Antonio (Province of Rio Negro) and in the northwest of the Department Biedma (Province of Chubut) during the months of January 1973 and 1974. Puerto Lobos, a small village in the Atlantic coast, at 42° S and 65° 05’ W, is the main locality in that región.The studied area is included in the Floristic Province of the Monte, and in the Zoogeographic Dominion of Patagonia, and is characterized by its aridity, with a permanent déficit of atmospheric saturation (50 to 55 o/o of mean relative humidity) and a mean annual rainfall of about 200 mm. The relief is characterized in the west side of the area by fíat plains of about 150 m high, decreasing eastward by gentle slopes or by steep slopes dissected by a disorganized and variable network of drainage gorges and dry streams, most of which are endorreic, ending in depresions or small basins of interior drainage with a salínized soil in the surface. Near the Atlantic coast the sea influence is shown by the penetration of tidal or occasionally flooded areas in the continental landscape.On the basis of the ecological distribution of the avifauna, nine difierent units were described, each one corresponding to a phisiographic characteristic type.
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/8246
work_keys_str_mv AT contrerasjuliorafael ecologyoftheavifaunaoftheregionofpuertolobosprovincesofrionegroandchubutargentina
AT contrerasjuliorafael ecologiadelaavifaunadelaregiondepuertolobosprovinciasderionegroydelchubut
first_indexed 2025-06-17T05:00:37Z
last_indexed 2025-06-17T05:00:37Z
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