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Se encontraron 1254 resultados en recursos

Por: Francisco Nieto Montaño | Fecha: 2016

Fuente: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt Formatos de contenido: Otros

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Por: Francisco Nieto Montaño | Fecha: 2016

Fuente: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt Formatos de contenido: Otros

Temas:
Aves

Por: Francisco Nieto Montaño | Fecha: 2016

Fuente: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt Formatos de contenido: Otros

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Aves

Por: Francisco Nieto Montaño | Fecha: 2016

Fuente: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt Formatos de contenido: Otros

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Por: Karen Pérez | Fecha: 2016

Aramides cajanea

Fuente: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt Formatos de contenido: Otros

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Por: Lorena Cruz-Bernate | Fecha: 2016

In a study conducted between the months of July and December of 2012, two patches of tropical dry forest from the geographic valley of the Cauca river (Colindres-Jamundi and Las Chatas-Buga) were followed. To collect the data, point counts and transects were used; additionally mist nets were used for the recognition of small and inconspicuous birds. 2364 birds, corresponding to 1462 records, divided into 76 species, 27 families and 16 orders were observed. The family with the greatest number of species was Tyrannidae (14), followed by Thraupidae (seven), then Ardeidae (five) and Picidae (five). In the Chatas Forest 51 species, grouped among 20 families were found, while in the Colindres Forest 59 species, grouped among 25 families were found. The data presented, contributes to the knowledge regarding the actual diversity of the bird population that still exists in two of the few patches of tropical dry forest remaining in the geographic valley of the Cauca river, and its relationship with the size and type of matrix surrounding these patches. These data could be taken into account for the design of management and conservation strategies of the dry forest, to mitigate the damage done by the monoculture of sugarcane and human intervention in general, responsible for its high vulnerability.

Fuente: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt Formatos de contenido: Artículos

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Por: Andrea Lopera-Salazar | Fecha: 2020

Hicimos caracterizaciones rápidas de avifauna en dos complejos de páramo (Frontino-Urrao y Sonsón) en el departamento de Antioquia, Colombia, en el límite superior de bosques nublados, zonas de transición y páramos. Registramos 197 especies de aves (40 familias), de las cuales 7 presentan alguna categoría de amenaza, 1 está casi amenazada, 5 son endémicas, 15 casi endémicas, 4 son migratorias boreales y 1 es migratoria austral. Señalamos 12 especies de importancia, ya sea por su grado de amenaza nacional o por presentar ampliación en su rango de distribución geográfica o altitudinal.

Fuente: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt

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Por: Diana Carolina Macana García | Fecha: 2017

Lake Tota is at 3015 m a.s.l in the eastern Andean cordillera of Colombia. It was declared an Important Bird area - IBA, because it is a strategic breeding area for endemic and threatened species and for its large concentration of resident and migratory waterfowl species. This publication provides a current list of birds, based on direct observations reported by authors from 2003 to 2016. These records were analyzed and compared with historical published data, we present an analysis of five conservation priority species and point out the need for citizen participation to create a civic movement calling attention to the importance of this aquatic ecosystem to the environmental government agencies negative ecological impacts that have been afflicting this aquatic ecosystem for more than 60 years ago, and to insist that it be designated as a RAMSAR site.

Fuente: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt Formatos de contenido: Artículos

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Por: Lorena Cruz-Bernate | Fecha: 2016

Given the increasing urban development and loss of forest areas which have an important ecological role in maintaining regional and continental bird populations there is a need to increase our knowledge about these population changes in order to understand their internal dynamics. From September 2011 to May 2012 birds occurring at the Universidad del Valle were monitored as part of the project “Use of the habitat by transcontinental migratory birds in Universidad del Valle’s Campus”. The information was obtained by observation transects, mist nets, and focal tracking of individuals. A total of 1995 records were obtained, represented in 12 orders, 29 families, and 76 species. The family with the highest number of species was Tyrannidae (14), followed by Thraupidae (eight) and Parulidae (eight). Fourteen species of Nearctic migratory birds were captured and banded. This information constitutes one of the few records of morphology obtained for resident and migratory birds in urban areas in Colombia.

Fuente: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt Formatos de contenido: Artículos

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Por: | Fecha: 2016

Bogotá, Colombia

Fuente: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt Formatos de contenido: Libros

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