Filters

1988 - 198912000 - 20061
Reset filters

Settings

Subject: ANIMALES DAÑINOS ×

Search Results

Now showing 1 - 2 of 2
  • Artículo de revista
    Abundance and distribution of American beaver, Castor canadensis (Kuhl 1820), in Tierra del Fuego and Navarino islands, Chile
    Castor canadensis specimens were imported from Canada and released in the wilderness on the Argentinean part of Tierra del Fuego (TDF) in the year 1946. First studies on the development of the beaver population and subsequent environmental changes were conducted four decades later and indicated a strong expansion of these animals, with negative effects on the forest, especially the dominant Nothofagus sp. Between 1999 and 2001, we investigated the density of the beaver population in the Chilean part of TDF and the southern adjacent island Navarino (NAV). Data were mapped into a geographical information system. The mean colony density was 1.03 (range: 0.15–1.91) and 1.1 per km watercourse for 75% of the area of TDF (mainly south and central region) and the total NAV island, respectively. The average number of individuals estimated per colony was five. Based on these findings, the number of beavers in the Chilean part of TDF and on NAV was estimated at 61,300 individuals. The population is increasing and expanding in the Northern region, with a linear rate of 2.6–6.3 km/year.
    Skewes, Oscar-Gonzalez, Fernando-Olave, Rodrigo-Avila Campos, Alberto-Vargas Rojas, Víctor-Paulsen, Peter-Erich König, Horst
    Región de Magallanes y de la Antártica Chilena
    2006
  • Artículo de revista
    Alternativas de control de lagomorfos en plantaciones forestales
    Desde el año 1972, para controlar el daño de conejos en plantaciones de Pino Radiata en el país se ha utilizado el Monofluoracetato de Sodio 1080, veneno agudo que posee un amplio especto de acción y que no tiene antídoto. Este producto incluso representa un serio peligro para la fauna doméstica y para la fauna silvestre útil, incluso, para el hombre, ya que se utiliza en cebos muy atractivos como son mermeladas y jaleas. Por aquella razón el Ministerio de Salud prohibió el uso de "1080" , haciéndose necesario en la actualidad, estudiar alternativas de control del daño, que anualmente conejo y liebres en las distintas planciones de país.
    Rodríguez Muñoz, Jaime A.
    1988