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Imagen de apoyo de Registros del ibis pico de hoz, Plegadis falcinellus (Linnaeus 1776) (Pelecaniformes: Threskiornithidae) en Colombia

Por: Juan S. León-Lleras | Fecha: 01/01/2016

In Colombia the Glossy Ibis (Plegadis falcinellus) has few records above 2000 m.a.s.l. We present a record of Glossy Ibis in the Fúquene Lagoon, Cundinamarca, Colombia, at 2600 m.a.s.l. which represents the first sighting of this bird in this wetland.

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

Temas:
Otros

Imagen de apoyo de Ampliación del área de distribución de Anthurium atramentarium Croat & Oberle (Araceae) en Colombia y comentarios sobre las especies de Anthurium de espata negra

Por: César A. Duque-Castrillón | Fecha: 01/01/2016

The distribution of Anthurium atramentarium in Colombia is expanded, this specie had been reported as endemic from Antioquia department. The necessity to develop strategies to protect species of Anthurium with black spathe that are distributed in Colombia is mentioned.

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

Temas:
Otros

Imagen de apoyo de Ranas del género Pipa (Anura: Pipidae) de la Orinoquia colombiana: nuevos registros y comentarios sobre su taxonomía, distribución e historia natural

Por: Carlos A. Lasso | Fecha: 01/01/2017

Two sympatric species of aquatic frogs (Pipa pipa and Pipa snethlageae) are reported for the first time for the Bita and Orinoco rivers in the moriche palm swamp streams of the floodplain, in the department of Vichada, Colombia. Updated maps are provided with the extension of the range of these two species, comments on their taxonomy and some aspects of their natural history are described.

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

Temas:
Otros

Imagen de apoyo de Gerromorpha y Nepomorpha (Heteroptera) del Pacífico de Colombia: lista de especies, distribución geográfica y altitudinal

Por: Dora N. Padilla Gil | Fecha: 01/01/2016

The bibliographical information about the species of aquatic Heteroptera, infraorders Gerromorpha and Nepomorpha, from the Colombian Pacific Plain was compiled. A total of 106 species are included, grouped in 14 families and 39 genera. Additionally, for each species the geographic distribution by region and department, and the altitudinal range are presented.

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

Temas:
Otros

Imagen de apoyo de Listado de especies de escarabajos coprófagos (Coleoptera: Scarabaeidae: Scarabaeinae) de bosque seco de Colombia

Por: Arturo González-Alvarado | Fecha: 01/01/2016

The species list of dung beetles of the dry forest of Colombia from the Entomological Collection of the Alexander von Humboldt Institute is presented. A total of 19.797 specimens of 68 species, the largest number of species registered for different localities in dry forest in Colombia, were reviewed. The taxonomic problems within the subfamily Scarabaeinae in Colombia are discussed; and a unique code for each morpho-species is proposed to further the the standardization of identification for records that cannot be identified to species. Only 35 species (51 %) could be identified to species, the others were codified.

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

Temas:
Otros

Imagen de apoyo de Nuevos registros del escarabajo indoafricano Digitonthophagus gazella (Fabricius 1787) (Coleoptera: Scarabaeinae) en Colombia

Por: Jibram León-González | Fecha: 01/01/2016

The Indo-african beetle Digitonthophagus gazella was introduced into the Americas as a bio-controller of parasites and flies in livestock systems. This dung scarab is characterized for its high dispersal ability, reproduction and efficient use of cattle manure. In Colombia, the most recent survey situated this beetle only in lowland areas. In the present study D. gazella was found in two new Colombian departments (Meta and Valle del Cauca) and its presence was confirmed in Antioquia. In this study, few individuals were collected and they were associated with vegetation systems with poor cover, such as livestock pastures and sugar cane monoculture, suggesting early stages of colonization and corroborating the preference of the species for open areas. Besides with the range extension with new records, this work also provides insights on D. gazella apparent colonization above 500 m of altitude. The distribution of this species across the Magdalena River valley appears to be associated with inter-department bovine transport. The importance of a continuous monitoring of the dispersion of D. gazella in Colombia, to establish its dispersal rate, habitat preference and pest status is also highlighted.

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

Temas:
Otros

Por: Ángela Rocío Amarillo-Suárez | Fecha: 01/01/2016

Urban domestic gardens contain an important diversity of plants, which provide habitat and food for the animals that live in cities. In order to recognize the diversity of plants in domestic gardens of Bogotá, D.C., seven localities that represent the city landscape diversity were selected. In each locality we inventoried the plant diversity of ten houses. 4110 individuals, 238 species (grasses, shrubs, trees, vines and epiphytes) and 85 families were recorded. A list and a photo catalogue with all species is provided for the first time.

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

Temas:
Otros

Imagen de apoyo de Nuevos registros de Heteroptera (Hemiptera) acuáticos y semiacuáticos de Colombia

Por: Dora Nancy Padilla-Gil | Fecha: 01/01/2017

New records of sixteen species of water bugs are reported, belonging to 10 genera and seven families. Expansions of the geographical distribution are presented for 12 species and three species are recorded for the first time from Colombia: Ovatametra fusca Kenaga, 1942; Ovatametra gualeguay Bachmann, 1966 and Pseudosaldula saxicola Schuh and Polhemus, 2009, a diagnose and illustrations are included for each one of these species. Maps show the geographical distribution of all species.

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

Temas:
Otros

Imagen de apoyo de Identificación de los servicios ecosistémicos que proveen las diferentes áreas protegidas en la Orinoquia colombiana

Por: Clara L. Matallana-Tobón | Fecha: 01/01/2017

This study was conducted with the support of the Young Researchers and Innovators Program 2012- 2013 of Colciencias. The aim of the study was to develop a qualitative analysis of the ecosystem services provided by the land covers within the different categories of protected areas in the Orinoco basin. To achieve this goal, a matrix was constructed according to the capacities of the different land covers to provide ecosystem services and their respective conservation categories were analyzed. A survey of experts working on protected areas was also performed. As results was obtained for each protected area management category the number of hectares and the type of land cover and ecosystem were identified. Of the total number of surveys sent to experts, 19 were completed and additional information on 3 private reserves was obtained from interviews with the owners. As conclusions, the region has a variety of land covers with different capacities to provide regulation, provision and cultural ecosystem services. However, a complete analysis would require field work in each area in order to verify the matrix of provision capacities of ecosystem services. The information hereby presented may contribute to the effective management of the protected areas.

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

Temas:
Otros

Imagen de apoyo de Peces migratorios al interior de una central hidroeléctrica: caso Miel I, cuenca del río Magdalena (Caldas-Antioquia), Colombia

Por: Luz Fernanda Jiménez-Segura | Fecha: 01/01/2016

One of the most obvious impacts of damming a river is the disruption of migratory routes, however, the characteristics of the dam, the river and its fish fauna make impossible the generalizations about the possible effects. Since the beginning of the operation of La Miel I hydropower plant, it was detected the entrance of fish into the hydropower plant (through the surge chamber) from La Miel river. To determine the composition of the fish and evaluate the potential effects on migration, for one year (April 2010-April 2011) adult individuals were tagged and released and ichthyoplankton collections were made, both in the surge chamber and in the discharge channel. Individuals of migratory and non-migratory species, mainly piscivorous and detritus-scrapers were found. Individuals who entered the surge chamber were able to find quickly the exit through the restriction orifice and returned to the main channel of La Miel River. The fish did not spawn in the central structures. We conclude that the surge chamber is not an absolute barrier to migration, but it is a staging habitat for migrant individuals.

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

Temas:
Otros