info:eu-repo/semantics/article
Distribution and Status of Podocnemis lewyana in the Magdalena River Drainage of Colombia
Registro en:
Restrepo, Adriana & Páez, Vivian & López, Catalina & Bock, Brian. (2009). Distribution and Status of Podocnemis lewyana in the Magdalena River Drainage of Colombia. Chelonian Conservation and Biology. 7. 45-51. 10.2744/CCB-0668.1.
1071-8443
10.2744/CCB-0668.1
1943-3956
Autor
Restrepo Isaza, Adriana
Páez Nieto, Vivian Patricia
Bok Garnier, Brian Carl
López, Catalina
Institución
Resumen
ABSTRACT: – We obtained evidence of the continued presence of Podocnemis lewyana in 18 different
sites within the Magdalena River drainage of northern Colombia. However, abundances at most
sites were low, even in areas where the species had previously been reported as common. Although
hunting of adults is no longer commercially viable, local people consume individuals that are
captured incidentally while fishing. Hunting of eggs during the incubation period each year
continues to be intensive. Turtle abundances were negatively related to human densities
throughout this area. In the Chicagua River, where turtle abundances were highest, we conducted
standardized shoreline censuses of basking adults and documented abundances of approximately
6 individuals/km2
. Turtles often basked on mud banks, beaches, or emergent logs in aggregations
made up of all size classes. Pilot trapping efforts also succeeded in capturing all size classes of
turtles, which suggests that more intensive monitoring programs would be feasible. Given the
evidence of declines in most areas of the range of this species, the current lack of regulation of its
exploitation, and the projections for continued human population growth in this area, we
recommend its International Union for Conservation of Nature (IUCN) status be changed from
Endangered to Critically Endangered (CR A2acd) COL0007373