Plantas acuáticas de las planicies inundables de la Orinoquia colombiana
The vast floodplains of the Orinoco Basin have the conditions for the proliferation of aquatic vegetation. Despite
its ecological importance in the “Llanos Orientales” of Colombia, the aquatic flora in this region has been
understudied. Consequently, the knowledge and dissemination of information about the richness and distribution
patterns of aquatic plants and aquatic communities is scarce. In addition, the Orinoco Basin of Colombia is
among the most over-exploited regions in the country. In order to provide a first insight into the species richness
of macrophytes present in the region, plants associated with aquatic habitats were collected, identified, and
photographed. For almost two years, 101 localities were visited. These localities were located in six departments
(Arauca, Casanare, Guainía, Guaviare, Meta and Vichada) and 19 municipalities. In each locality, dried plant
material and silica-dried material were collected. Sampling effort was concentrated towards hydrophytes and helophytes inhabiting lentic and lotic environments. 1167 collected specimens were deposited in the ANDES herbarium (Universidad de los Andes, Bogotá). Among these, 95 families, 221 genera, and 341 species of vascular plants were associated with aquatic habitats. Of the species collected, only 151 had been reported in the study area with 1374 historic occurrences in the “Herbario Nacional Colombiano” (COL) database. The present study aims to contribute to the knowledge and dissemination of information about the richness and distribution patterns of macrophytes in the Orinoco Basin of Colombia. We consider that this information is important in order
to propose localities that should be a priority for conservation purposes, and to protect these important
and threatened fresh-water ecosystems.
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Plantas acuáticas de las planicies inundables de la Orinoquia colombiana
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Diversidad, bioformas y abundancia de plantas acuáticas en humedales de las llanuras inundables del Orinoco en Venezuela
Richness (alpha and beta diversity), abundance and dominance of bioforms of aquatic vegetation in a wetland
of the Orinoco floodplains in Venezuela, studied over an annual cycle are described. In a lowland extension of
65,000 hectares including a whole range of aquatic habitats (shallows, marshes, ponds and streams), 197 species belonging to 122 genera and 56 families were recorded. Beta diversity was higher in lentic than in lotic wetlands, the emergent rooted bioform being the most abundant in all habitats and throughout the year. Considering the most persistent species (spatially and temporally), Eichhornia crassipes (Mart) Solms., Hymenachne amplexicaulis (Rudge) Nees and Luziola subintegra Swallen obtained the highest relative importance values. The most abundant species in all environments and throughout the year was Salvinia auriculata Aubl. Brief comments on the limited use of these aquatic plants are given.
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Diversidad, bioformas y abundancia de plantas acuáticas en humedales de las llanuras inundables del Orinoco en Venezuela
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Biodiversidad y evolución en Hymenoptera
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Biodiversidad y evolución en Hymenoptera
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Mamíferos del departamento de Caldas - Colombia
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Mamíferos del departamento de Caldas - Colombia
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Riqueza genérica y distribución de Elmidae (Insecta: Coleoptera, Byrrhoidea) en el departamento del Valle del Cauca, Colombia
Elmidae is a family of aquatic beetles common in clean water streams and widely used in studies of environmental bioindication. This work was proposed in order to recognize the richness of the Elmidae genera in the department of Valle del Cauca and recopile information about its distribution since biological colection data. A total of 3305 specimens (larvae and adults) were examined, mainly stored in the Museum of Entomology at the University of Valle and associated with field work completed between 1991 and 2014. The samples were collected from 116 locations within 19 municipalities, and are representative of 63 streams, mainly belonging to the Anchicayá, Cauca, Dagua and San Juan rivers basin and the Andean and Pacific natural regions. A total of 16 genera were documented: eleven Elminae (Austrolimnius, Cylloepus, Heterelmis, Huleechius, Macrelmis, Microcylloepus, Neoelmis, Notelmis, Onychelmis, Xenelmis and Stenhelmoides, the last not found in local collection) and five Larainae (Disersus, Hexanchorus, Phanocerus, Pharceonus and Pseudodisersus). These genera were distributed from 110 to 2440 m a.s.l., with greater taxonomic representation between 1000 and 2000 m a.s.l. The two genera most widely distributed were Macrelmis and Heterelmis, while the river with the highest taxonomic representation was Guabas. The distribution area for Austrolimnius, Huleechius, Notelmis and Xenelmis was expanded to the Valle del Cauca region.
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Riqueza genérica y distribución de Elmidae (Insecta: Coleoptera, Byrrhoidea) en el departamento del Valle del Cauca, Colombia
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Tardígrados (Animalia: Tardigrada) de la Reserva El Diviso – Santander, Colombia
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Tardígrados (Animalia: Tardigrada) de la Reserva El Diviso – Santander, Colombia
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Aves del departamento del Cauca - Colombia
El Cauca con su diversidad biogeográfica es uno de los departamentos más diversos en especies de aves en Colombia. En busca de cuantificar la riqueza reportada hasta ahora y observar su distribución geográfica, realizamos una compilación de información existente sobre registros de especies de aves en el departamento del Cauca mediante la revisión de publicaciones y colecciones ornitológicas en diferentes museos del mundo. Se obtuvo un listado de 1,102 especies, que incluye 18 spp. endémicas, 96 spp. migratorias boreales y 41 spp. consideradas en peligro de extinción a nivel nacional. Este listado constituye una herramienta adecuada para el estudio de las aves en el Cauca y es un referente para entender diferentes aspectos de la avifauna en el suroccidente colombiano.
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Aves del departamento del Cauca - Colombia
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Mamíferos en áreas de conservación de la Corporación Autónoma Regional del Quindío, Colombia
Se presenta el listado de los mamíferos medianos y grandes registrados en 11 áreas de conservación del departamento del Quindío, Colombia. La fase de campo se desarrolló en cinco municipios, entre julio y diciembre del 2016, y el muestreo incluyó recorridos por transectos e instalación de cámaras trampa. Se confirma la presencia de 21 especies de mamíferos en las áreas estudiadas. Las áreas con mayor número de especies hacen parte de la Reserva Forestal Central o están cerca a otras áreas de conservación, situación que podría estar permitiendo la interconexión entre reservas por corredores biológicos. Cuatro de las especies registradas se encuentran bajo categoría de amenaza: Tapirus pinchaque (En Peligro), Aotus lemurinus, Leopardus tigrinus y Mazama rufina (Vulnerable). Se resalta la presencia de Leopardus pardalis como nuevo registro para el departamento.
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Mamíferos en áreas de conservación de la Corporación Autónoma Regional del Quindío, Colombia
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Fundamentos y consideraciones generales sobre restauración ecológica para Colombia
Colombia has been is undergoing a process of rapid ecosystem deterioration that has affected, at different
scales, the provision of strategic ecosystem services to rural and urban populations. This situation has led to
the need for academics, policy makers, and our local communities to consider various integrated strategies
of ecosystem conservation such as the reinforcement of novel and existing protected areas, changing land
use and certainly, the restoration of ecosystems that provide strategic services. However, the conceptual
and methodological framework of ecological restoration in the country today is significantly dispersed at
every level, even within the SINA (Sistema Nacional Ambiental). The purpose of this working paper is to introduce the most important concepts related to ecological restoration in order to have a standardized institutional vision that may generate a space for the discussion and application of this issue in the institutional programs, lines of work and emphasis of researchers.
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Fundamentos y consideraciones generales sobre restauración ecológica para Colombia
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Número completo
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