IADIZA   20886
INSTITUTO ARGENTINO DE INVESTIGACIONES DE LAS ZONAS ARIDAS
Unidad Ejecutora - UE
artículos
Título:
Space use by a male Andean bear (Tremarctos ornatus) tracked with GPS telemetry in the Macizo Chingaza, Cordillera Oriental of the Colombian Andes
Autor/es:
TARQUINO-CARBONEL, ANDREA DEL PILAR; RODRÍGUEZ, DANIEL; RESTREPO, HÉCTOR; REYES, ADRIANA; REYES, NICOLÁS
Revista:
Notas sobre Mamíferos Sudamericanos
Editorial:
SAREM
Referencias:
Lugar: Buenos Aires; Año: 2021 vol. 3 p. 1 - 8
Resumen:
For decades, telemetry has provided large amounts of ecological information for several bear species; however, for the Andean bear (Tremarctos ornatus), only three studies have available information. The use of space for this species was measured for the first time in Colombia with a male specimen tracked with GPS telemetry. Bear locations (n= 348) were obtained between October and December 2013, during the dry season. Our dry-season male home range estimates with nearest-neighbor convex-hull (K-NNCH, 24.62 km2) and kernel density estimate (KDE, 42.15 km2) slightly exceed those reported for the species in Ecuador, and our minimum convex polygon (MCP, 238.86 km2) quintupled estimates from Ecuador. This finding supports the hypothesis that more fragmented landscapes demand greater movements to obtain sufficient resources. K-NNCH and KDE were the most accurate methods, as they excluded degraded terrain not used by the tracked bear. Total daily traveled routes oscillated between 0.51-12.07 km. The forest-páramo ecotone, full of dry-season-fruiting Ericaceae shrubs, was the main habitat used.