Nevada records for the norway rat are anchored by Desert National Wildlife Refuge and Red Rock Canyon National Conservation Area. They show where people have reported it, not how many animals live there.
These sites place the Nevada record pattern firmly in the state’s southern desert country. The protected lands also span springs, canyons, and open basin terrain. The monthly pattern is fairly spread out rather than confined to one Nevada season. It tracks observer records and shouldn’t be read as a population count.
The file combines 13 research-grade iNaturalist records and 12 GBIF records. Those 25 records measure documented encounters, not Nevada’s population size. It’s listed as introduced in Nevada. Nevada doesn’t specifically list it under the state’s conservation framework, and the IUCN lists it as Least Concern.
Full species profile
