Indefatigable Galapagos Mouse
Nesoryzomys indefessus
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
The Indefatigable Galapagos Mouse faces severe pressure from introduced black rats (Rattus rattus) which compete for food resources and may prey on juveniles. Habitat degradation from invasive plant species, particularly guava and lantana, has altered the native vegetation structure essential for nesting and foraging. Climate variability associated with El Niño events periodically reduces food availability, while the species' extremely limited range on Santa Cruz Island makes it vulnerable to catastrophic events.
Habitat
This endemic rodent inhabits the humid highland forests of Santa Cruz Island in the Galápagos, particularly areas with dense native vegetation including Scalesia forests and transitional zones. It prefers areas with thick understory vegetation that provides cover and nesting sites, typically at elevations above 200 meters.
Other threatened species in Cricetidae
Threatened in Ecuador
Frequently asked questions
Why is Indefatigable Galapagos Mouse classified as Vulnerable?
Where does Indefatigable Galapagos Mouse live?
What are the main threats to Indefatigable Galapagos Mouse?
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