Population-density Monitoring of the Silvery-brown Tamarin (Oedipomidas leucopus) in Eastern Caldas, Colombia: Third Sampling.

Autor: Roncancio-D., Néstor, Ospona-H., Oscar, Suarez-R., Laura, Chica-F., Laura, Elizalde-G., Angela M., Tirado, Alejandra, Guzmán, Lina M., Colorado, Juan, Meneses-G., Stephany, Vela-P., Oscar, Patiño-E., Paula C.
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Zdroj: Primate Conservation; 2023, Issue 37, p45-56, 12p
Abstrakt: Understanding population trends is key to planning and adapting conservation measures for threatened species. A number of conservation and management actions have been implemented to control deforestation and the illegal pet trade in the Caldas department of Colombia in the range of the white-footed tamarin Oedipomidas leucopus1 (Vulnerable A4cd), and we have have monitored their population densities to evaluate the effectiveness of these interventions. Localities in different vegetation composition and management regimes were selected for population monitoring, using the estimated population of the silvery-brown tamarin as an indicator. In 2021, new population density estimates were obtained and compared with previous estimates from 2006–2008 and 2015. In this recent re-surveying, population densities found in the eastern Caldas region were between 18 and 129 individuals/km². No changes were found in four localities when compared to the previous surveys. In one locality there was an increase in population density from 76 to 129 ind/km². We were unable to survey one previously surveyed, so a new location was included. Our data suggest that measures to control the pet trade of this primate have been successful in this zone. We also evaluated population density differences in the distinct ecosystems: humid lowland forest; humid sub-Andean Forest, and humid lowland secondary vegetation. The population densities differed between the three ecosystems—the population density was higher in the sub-Andean humid forest. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index