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Estado poblacional del orden Plecoptera (Insecta) en el Parque Nacional Sierra Nevada en Venezuela y sus implicaciones para planes de conservación
Gamboa, Maribet.
Affiliation
  • Gamboa, Maribet; Leibniz-Institut of Freshwater Ecology and Inland Fisheries. Deparment of Shallow Lakes and Lowland Rivers. Berlin. DE
Rev. biol. trop ; 58(4): 1299-1310, dic. 2010. ilus, mapas, tab
Article in Spanish | LILACS | ID: lil-638002
Responsible library: CR1.1
ABSTRACT
Population status of insects of Plecoptera order in Sierra Nevada National Park in Venezuela and its implications for conservation planning. Longitudinal distribution of Plecoptera species were examined along the Sierra Nevada National Park in the Andean region of Merida State, Venezuela. PNSN is one of the largest protected areas and consists of two major sub-basins. Quantitative samples were collected in 7 river tributaries along the PNSN from February to May of 2009, and a total of 135 individuals and 4 species of the genus Anacroneuria were collected. Only three rivers (Nuestra Señora, La Picón y Corcovada) found the presence of stoneflies, the principal component analysis show that the characterization of habitat, current velocity, dissolved oxygen and the absence of human disturbance sources of influence in a suitable habitat for populations. Stoneflies are endangered or have become extinct throughout much of its range due to human activities. Conservation plans must be implemented urgently, in order to avoid recreational areas and/or economic in vicinity thereof. Rev. Biol. Trop. 58 (4) 1299-1310. Epub 2010 December 01.
RESUMEN
La distribución longitudinal de las especies de plecópteros fue examinada a lo largo del Parque Nacional Sierra Nevada en la región Andina del estado Mérida, Venezuela. El PNSN es uno de las más grandes regiones protegidas y abarca dos subcuencas hidrográficas importantes. Muestras cuantitativas fueron recolectadas en 7 ríos tributarios de estas cuencas a lo largo del PNSN desde febrero a mayo del 2009, con un total de 135 individuos de 4 especies del género Anacroneuria. Sólo en tres ríos (Nuestra Señora, La Picón y Corcovada) se encontró la presencia de plecópteros, los análisis de componentes principales muestran que la caracterización del hábitat, la velocidad de la corriente, el oxígeno disuelto y la ausencia de fuentes de perturbación antrópica influyen en un hábitat idóneo para las poblaciones. Los plecópteros se hallan en peligro de desaparición o incluso se han llegado a extinguir en gran parte de su área de distribución como consecuencia de actividades humanas. Planes de conservación deben ser implementados con urgencia, como evitar zonas recreacionales y/o económicas en las cercanías de los mismos.
Subject(s)

Full text: Available Collection: International databases Health context: SDG3 - Health and Well-Being Health problem: Target 3.9: Reduce the amount of deaths produced by dangerous chemicals and the pollution of the air, water and soil Database: LILACS Main subject: Ecosystem / Conservation of Natural Resources / Rivers / Insecta Limits: Animals / Humans Country/Region as subject: South America / Venezuela Language: Spanish Journal: Rev. biol. trop Journal subject: Biology / Tropical Medicine Year: 2010 Document type: Article Affiliation country: Germany Institution/Affiliation country: Leibniz-Institut of Freshwater Ecology and Inland Fisheries/DE
Full text: Available Collection: International databases Health context: SDG3 - Health and Well-Being Health problem: Target 3.9: Reduce the amount of deaths produced by dangerous chemicals and the pollution of the air, water and soil Database: LILACS Main subject: Ecosystem / Conservation of Natural Resources / Rivers / Insecta Limits: Animals / Humans Country/Region as subject: South America / Venezuela Language: Spanish Journal: Rev. biol. trop Journal subject: Biology / Tropical Medicine Year: 2010 Document type: Article Affiliation country: Germany Institution/Affiliation country: Leibniz-Institut of Freshwater Ecology and Inland Fisheries/DE
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