Nuevos datos sobre la presencia de caimán llanero (<em>Crocodylus intermedius<em>) y notas sobre su comportamiento en el río Vichada, Orinoquia (Colombia)

During 2010 and 2011 diurnal and nocturnal surveys were conducted in the drainages of the Meta and Vichada rivers (Colombian Orinoco Basin) to update the information about the conservation status of the Orinoco crocodileâs populations in the wild. Between November 2010 and March 2011 stretches of si...

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Main Authors: Antonio Castro, Manuel Merchán, Fernando Gómez, Mario Fernando Garcés, Miguel Andrés Cárdenas
Format: Article
Language:English
Published: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt 2011-06-01
Series:Biota Colombiana
Subjects:
Online Access:http://revistas.humboldt.org.co/index.php/biota/article/view/244
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author Antonio Castro
Manuel Merchán
Fernando Gómez
Mario Fernando Garcés
Miguel Andrés Cárdenas
author_facet Antonio Castro
Manuel Merchán
Fernando Gómez
Mario Fernando Garcés
Miguel Andrés Cárdenas
author_sort Antonio Castro
collection DOAJ
description During 2010 and 2011 diurnal and nocturnal surveys were conducted in the drainages of the Meta and Vichada rivers (Colombian Orinoco Basin) to update the information about the conservation status of the Orinoco crocodileâs populations in the wild. Between November 2010 and March 2011 stretches of six watercourses of the Meta river Basin and a stretch of the Vichada river were sampled, covering 2460.3 km, and 199.2 km of nocturnal censuses were traveled. Six observations were made in the Vichada river, corresponding to two individuals (one seen twice, the other seen four times) and crocodile tracks were found on two beaches. Additionally, territorial behavior of one of the individuals observed was registered. No crocodiles were seen in the stretches of the Meta River, or any of its tributaries surveyed. Apparently, the populations in the areas studied have not recovered since 1994-1997, the last time data were obtained, probably due to the annual plundering of nests, the destruction of habitat and the accidental or deliberate death of individuals.
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spelling doaj.art-37896ca0cd92429da2fe85f87fe55a882022-12-21T18:55:39ZengInstituto de Investigación de Recursos Biológicos Alexander von HumboldtBiota Colombiana0124-53762539-200X2011-06-0112110.21068/bc.v12i1.244244Nuevos datos sobre la presencia de caimán llanero (<em>Crocodylus intermedius<em>) y notas sobre su comportamiento en el río Vichada, Orinoquia (Colombia)Antonio CastroManuel MerchánFernando GómezMario Fernando GarcésMiguel Andrés CárdenasDuring 2010 and 2011 diurnal and nocturnal surveys were conducted in the drainages of the Meta and Vichada rivers (Colombian Orinoco Basin) to update the information about the conservation status of the Orinoco crocodileâs populations in the wild. Between November 2010 and March 2011 stretches of six watercourses of the Meta river Basin and a stretch of the Vichada river were sampled, covering 2460.3 km, and 199.2 km of nocturnal censuses were traveled. Six observations were made in the Vichada river, corresponding to two individuals (one seen twice, the other seen four times) and crocodile tracks were found on two beaches. Additionally, territorial behavior of one of the individuals observed was registered. No crocodiles were seen in the stretches of the Meta River, or any of its tributaries surveyed. Apparently, the populations in the areas studied have not recovered since 1994-1997, the last time data were obtained, probably due to the annual plundering of nests, the destruction of habitat and the accidental or deliberate death of individuals.http://revistas.humboldt.org.co/index.php/biota/article/view/244CrocodylidaeNuevos registrosRío VichadaComportamiento territorialOrinoquiaColombia
spellingShingle Antonio Castro
Manuel Merchán
Fernando Gómez
Mario Fernando Garcés
Miguel Andrés Cárdenas
Nuevos datos sobre la presencia de caimán llanero (<em>Crocodylus intermedius<em>) y notas sobre su comportamiento en el río Vichada, Orinoquia (Colombia)
Biota Colombiana
Crocodylidae
Nuevos registros
Río Vichada
Comportamiento territorial
Orinoquia
Colombia
title Nuevos datos sobre la presencia de caimán llanero (<em>Crocodylus intermedius<em>) y notas sobre su comportamiento en el río Vichada, Orinoquia (Colombia)
title_full Nuevos datos sobre la presencia de caimán llanero (<em>Crocodylus intermedius<em>) y notas sobre su comportamiento en el río Vichada, Orinoquia (Colombia)
title_fullStr Nuevos datos sobre la presencia de caimán llanero (<em>Crocodylus intermedius<em>) y notas sobre su comportamiento en el río Vichada, Orinoquia (Colombia)
title_full_unstemmed Nuevos datos sobre la presencia de caimán llanero (<em>Crocodylus intermedius<em>) y notas sobre su comportamiento en el río Vichada, Orinoquia (Colombia)
title_short Nuevos datos sobre la presencia de caimán llanero (<em>Crocodylus intermedius<em>) y notas sobre su comportamiento en el río Vichada, Orinoquia (Colombia)
title_sort nuevos datos sobre la presencia de caiman llanero em crocodylus intermedius em y notas sobre su comportamiento en el rio vichada orinoquia colombia
topic Crocodylidae
Nuevos registros
Río Vichada
Comportamiento territorial
Orinoquia
Colombia
url http://revistas.humboldt.org.co/index.php/biota/article/view/244
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