Coronados Deer Mouse
CR

Coronados Deer Mouse

Peromyscus pseudocrinitus

Declining

Photo: (c) Patricia Simpson, some rights reserved (CC BY-NC), uploaded by Patricia Simpson

Overview

The false canyon mouse or Coronado's deermouse, is a species of rodent in the family Cricetidae. It is a species of the genus Peromyscus, a closely related group of New World mice often called "deermice". It is known only from Coronados Island, a small island in the Gulf of California, part of Baja California Sur, Mexico. The species is threatened by predation by feral cats, and the IUCN has assessed its conservation status as "critically endangered".

Peromyscus pseudocrinitus faces severe threats from habitat destruction due to agricultural expansion and urban development within its extremely limited range. The species' small population size makes it particularly vulnerable to stochastic events and genetic bottlenecks. Mining activities and infrastructure development have further fragmented the remaining suitable habitat, while invasive plant species alter the native vegetation communities this mouse depends upon.

Threat summary

Habitat

This critically endangered mouse inhabits arid shrubland and desert scrub ecosystems, typically favoring areas with sparse vegetation and rocky substrates. The species shows preference for specific microhabitats with particular soil types and elevation ranges within its restricted geographic distribution.

Shrubland· majorDesert· major

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EN

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EN

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Oxymycterus hucucha

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Mindomys hammondi

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Frequently asked questions

Why is Coronados Deer Mouse classified as Critically Endangered?
Coronados Deer Mouse is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Peromyscus pseudocrinitus faces severe threats from habitat destruction due to agricultural expansion and urban development within its extremely limited range. The species' small population size makes it particularly vulnerable to stochastic events and genetic bottlenecks. Mining activities and infrastructure development have further fragmented the remaining suitable habitat, while invasive plant species alter the native vegetation communities this mouse depends upon.
Where does Coronados Deer Mouse live?
Coronados Deer Mouse occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Coronados Deer Mouse?
The main threats to Coronados Deer Mouse are 8.1, ai-1, ai-2, and ai-3. The full IUCN-classified threat record for this species is detailed on the species page.

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