Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Didelphimorphia
- Family
- Didelphidae
- Genus
- Marmosa
Habitat
This species inhabits arid and semi-arid regions, primarily dry thorn scrub and desert areas in northern Colombia and northwestern Venezuela. It prefers rocky outcrops, low vegetation, and areas with sparse rainfall for shelter and foraging. These environments provide both ground cover and climbing opportunities.
Diet
The Guajira mouse opossum is omnivorous, feeding on insects like beetles and crickets, fruits such as cacti berries, and occasionally small vertebrates or nectar. It forages nocturnally to avoid predators, using its keen senses to locate food in the underbrush. Feeding behavior includes both ground scavenging and climbing trees for fruits.
Behavior
This opossum is solitary and nocturnal, spending its days hidden in nests made from leaves and twigs in rock crevices or dense vegetation. It exhibits territorial behavior, marking areas with scent glands, and is an agile climber that uses its prehensile tail for balance. Despite being generally elusive, it may play dead when threatened, a common trait among opossums.
Conservation Status
The IUCN status is Least Concern, with a stable population trend due to its wide distribution. Major threats include habitat loss from agriculture and urban expansion in its arid regions.