Evaluación del estado actual de zarigüeyas (Didelphismarsupialis) en tres zonas del Valle de Aburrá
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Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Abstract
Objective. Opossum populations
(Didelphismarsupialis) were characterized in an
ecotourism area in Santa Elena, district of the
city of Medellín and in the periurban and urban
areas of the city of Caldas, Antioquia; using
phototraps. Materials and methods. 7 Moultrie
Game Spy® cameras were placed to determine
relative abundance index (RAI) and rotated every
three weeks. Baits were used to make observation
easier. Results. For the Santa Elena district the
sampling effort was 360 days / trap, in which
22 photographs of the species were obtained.
Didelphismarsupialis had a total RAI of 0.18;
of which 0.06 represented its abundance in the
native forest and the remaining value was part of
the area with pine trees. For the peri urban zone
of the city of Caldas the sampling effort was 679
days / trap. The species Didelphismarsupialis
had a total RAI of 0.4; which represents an
approximate number of 26 individuals at the
Santa Inés practice center. In the urban area of
the city of Caldas it was not possible to establish
this pattern. Conclusion. The study indicates that
despite the transformation of the peri urban area
in the Aburrá Valley it is possible to find elements
representative of its peri urban mammals, even
in small private reserves. The Didelphidae family
has adapted to highly modified ecosystems,
even in areas with invasive species such as
exotic monocultures of exotic species, livestock
pastures and anthropic transformation given
by the fragmentation of forests, however these
marsupials are forced to migrate locally to
changes in the microclimate of forest fragments.
Description
Keywords
Corporación Universitaria Lasallista, Facultad de Ciencias Administrativas y Agropecuarias, Fototrampeo, Zarigüeyas, Ecosistemas, Marsupiales, Mamíferos
Citation
Revista Journal of Agriculture and Animal Sciences Vol. 6 N. 1