Why are mice listed in the Red Book? - briefly
Several mouse species appear on the IUCN Red List because their populations have dropped below the thresholds for threatened categories, driven by habitat loss, introduced predators, and disease. These pressures qualify them for classifications such as Vulnerable, Endangered, or Critically Endangered.
Why are mice listed in the Red Book? - in detail
Mice appear on the Red List because specific species meet the criteria for threatened status. The assessment process evaluates population size, rate of decline, geographic range, and degree of habitat fragmentation. When these indicators fall below established thresholds, the species is assigned to one of the categories ranging from Vulnerable to Critically Endangered.
Key factors contributing to their inclusion are:
- Habitat loss – conversion of grasslands, forests, and agricultural fields reduces available shelter and foraging areas.
- Invasive predators – introduction of cats, mustelids, and avian predators increases mortality, especially for island populations.
- Disease pressure – outbreaks of hantavirus, plague, and other pathogens can cause rapid declines.
- Climate change – shifts in temperature and precipitation patterns alter suitable habitats, forcing range contractions.
- Human persecution – control measures aimed at agricultural pests inadvertently affect non‑target mouse species.
Each listed taxon is accompanied by a detailed justification outlining the observed trends, threats, and conservation actions required. Management recommendations often include habitat protection, invasive species control, disease monitoring, and, where feasible, captive breeding or translocation programs.