Proyecto de Conservacion de Aguas y Tierras

Bogotá, Colombia

Proyecto de Conservacion de Aguas y Tierras

Bogotá, Colombia
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Jimenez-Alvarado J.S.,Proyecto de Conservacion de Aguas y Tierras | Arias-Ocampo A.,Proyecto de Conservacion de Aguas y Tierras | Arias-Ocampo A.,University of Magdalena | Pineda-Guerrero A.,Proyecto de Conservacion de Aguas y Tierras | And 6 more authors.
Therya | Year: 2016

The Grison (Galictis vittata) is a mustelid carnivore with a wide distribution in the American continent, including Colombia. However, is one of the less studied carnivore species in Colombia, with scarce information regarding distribution, ecology and conservation status. We compiled all records and observations available for the species in the Caribbean region of Colombia. Additionally, through field work held throughout the region, we present new confirmed records for the species. We obtained a total of 78 records, distributed in seven of the eight departments of the Caribbean Region of Colombia; of these, 54 records are new for the region and are located in five departments. The new records expand the known distribution of the species in 162 km to the South and 36,500 km2 in extent from its previously estimated distribution, also confirming its presence in three departments for the first time. Our results extend the knowledge of the species for the Caribbean region of Colombia by providing new records and data on distribution and extending its known range. These results also highlight the need for further study of the species regarding most aspects of its natural history. © 2016 Asociación Mexicana de Mastozoología.


Escobar-Lasso S.,National University of Costa Rica | Gil-Fernandez M.,National University of Costa Rica | Saenz J.,National University of Costa Rica | Carrillo-Jimenez E.,National University of Costa Rica | And 3 more authors.
Neotropical Biology and Conservation | Year: 2017

A poorly described aspect of the trophic relation between sea turtles and jaguars is the distribution and hotspots of the feeding areas of jaguars on the nesting beaches. It is very important to identify the areas where sea turtles are predated because we could concentrate conservation and management efforts in these areas. Therefore, the aim of this work is to describe the spatial distribution and hotspots of the feeding areas of jaguars at Nancite beach, Santa Rosa National Park, Costa Rica. We recorded a total of 76 predated carapaces of sea turtles, of these, 54 (71%) were of Lepidochelys olivacea and 22 (29%) of Chelonia mydas. Two major feeding hotspots areas were identified within the Nancite beach. Both hotspots are located at the extremes of the beach, one is at the southern edge and the other is at the northern extreme. Human activity and the distribution of nesting turtles influence synergistically to determine the sites where the sea turtles are predated at Nancite beach. Based on the information of predation hotspots, the environmental authorities should regulate the monitoring activities within those areas to avoid interfering with the trophic relation between sea turtles and jaguars. © 2017, Universidade do Vale do Rio dos Sinos. All rights reserved.


Caceres-Martinez C.H.,University of Pamplona | Rincon A.A.A.,University of Pamplona | Gonzalez-Maya J.F.,Proyecto de Conservacion de Aguas y Tierras | Gonzalez-Maya J.F.,National Autonomous University of Mexico
Therya | Year: 2016

The eastern mountain range of Andes in Colombia is one of the least studied areas for mammals in the country, yet, potentially one of the most diverse. Here we present the first survey of medium and large-sized mammals for Tama National Natural Park (NNP) and La Carpa and La Rochela buffer areas, as basic information for the conservation and management of the NNP, including the potential inclusion of these buffer zones as part of the NNP. We used different complementary survey techniques (i. e., camera-traps, transects and interviews) to assess the diversity of these mammals in a 216 km2 area of the park; our effort included 72 linear transects of 1.8 Km, opportunistic sampling sessions, 16,714 camera trap-days, 39 structured interviews and indirect records and direct observation of animals. We recorded 21 species of mammals classified in 8 orders and 16 families distributed in four conservation categories. Complementary methods significantly improved the results. We found a dominant nocturnal activity pattern for the assemblage and low activity overlapping among most species. This is the first assessment of medium and large-sized mammal's diversity for Tama NNP and for most North-eastern Andes in the country. Our results highlight the presence of large threatened species such as Tremarctos ornatus, Puma concolor and Mazama rufina. Our results could serve as basis for the conservation planning and management of the protected area and its buffer zones, and the potential expansion of the park. © 2016 Asociacion Mexicana de Mastozoologia.


Gonzalez-Maya J.F.,Proyecto de Conservacion de Aguas y Tierras | Gonzalez-Maya J.F.,National Autonomous University of Mexico | Cardenal-Porras J.,Proyecto de Conservacion de Aguas y Tierras
Hystrix | Year: 2011

Ocelot Leopardus pardalis is one of the most widespread species in America. Nevertheless, its ecology, distribution and population status are not well known in several countries, including Costa Rica. Here we present the first published population density estimations in Costa Rica and the first effort for the Caribbean slope of the country. Using camera-trapping, we estimated ocelot density through capture-recapture analysis within the Talamanca-Caribbean Biological Corridor. An abundance of 8 and 5 individuals were estimated by Mo and Mh models, respectively. Based on previous home-range studies, three Effective Sampling Areas (ESA) were used to estimate absolute density. Density was calculated in 8.95, 10.33 and 11.61individuals (Mo model) and 5.59, 6.45 and 7.25 (Mh model) individuals × 100 km-2 for the maximum, mean and minimum ESA estimates, respectively. Gross extrapolations of the expected population size indicate a low abundance and codependence between the corridor and surrounding areas for the long term maintenance of the species in the region.


Gonzalez-Maya J.F.,National Autonomous University of Mexico | Cardenal-Porras J.,Proyecto de Conservacion de Aguas y Tierras | Wyatt S.A.,Proyecto de Conservacion de Aguas y Tierras | Mata-Lorenzen J.,Proyecto de Conservacion de Aguas y Tierras
Revista Mexicana de Biodiversidad | Year: 2011

Distribution records are the basis for conservation planning and species conservation assessments. New locality and elevation records are reported for 2 dipsadid snakes (Oxyrhopus petolarius and Urotheca fulviceps) and 1 colubrid (Spilotes pullatus) from the Talamanca mountain range of Costa Rica as established by direct sightings. These new records represent important additions to the knowledge of the species and more generally for the Talamanca ecoregion.

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