SciELO - Scientific Electronic Library Online

vol.58 issue4Growth and mortality patterns in a thinning canopy of post-hurricane regenerating rain forest in eastern Nicaragua (1990-2005)Bats (Mammalia: Chiroptera) in native and reforested areas in Rancho Alegre, Paraná, Brazil author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista de Biología Tropical

On-line version ISSN 0034-7744Print version ISSN 0034-7744


GAMBOA, Maribet. Estado poblacional del orden Plecoptera (Insecta) en el Parque Nacional Sierra Nevada en Venezuela y sus implicaciones para planes de conservación. Rev. biol. trop [online]. 2010, vol.58, n.4, pp.1299-1310. ISSN 0034-7744.

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

Keywords : Andean rivers; Anacroneuria; longitudinal gradient; environmental relationships; human activities.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License