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Se encontraron 1254 resultados en recursos

Por: | 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

Temas:
Aves

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

Temas:
Aves

Por: | 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

Temas:
Aves

Por: Francisco Nieto Montaño | Fecha: 2016

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

Temas:
Aves

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

Temas:
Aves
Otros

Por: Sergio Chaparro-Herrera | 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

Temas:
Aves

Por: César H. Giraldo | Fecha: 2016

The dry enclave of Amaime River is one of the few places that remain as Tropical Dry Forest in the Valle del Cauca department, which is considered one of the most threatened ecosystems in the Neotropics. The site has been heavily transformed and threatened by anthropic means like continued burning for the suitability of land for agriculture and livestock, small short rotation crops among others. The aim of the study was to develop detailed inventories of avifauna, herpetofauna, mammalian fauna, and flora in relict sub-xerophytic forests of the enclave, therefore revealing the biodiversity of these remnants, their conservation status and potential threats in order to propose recommendations for conservation. Four sampling areas were selected with cover vegetation as thorny scrub vegetation, riparian forests and forest fragments. For registration and data collection mist nets, transects, direct observations and Sherman traps were used, additionally informal interviews with the community were performed. Despite the reduction of vegetation cover in the dry enclave of Amaime River, the forest fragments serve as shelter and feeding site for both transient species and typical dry and very dry forest wildlife.

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

Temas:
Vegetación
Otros
Zoología
Aves