Kansas holds the deepest pile of southern bog lemming records in the country. Of the roughly 1,700 US reports logged since 2000, 616 come from this state, more than the next several states combined. That doesn’t mean bog lemmings are thickest in Kansas. It means people here have gone looking, traps in hand, harder than almost anywhere else.
A research-reserve hotspot
Douglas and Jefferson counties alone supply 434 of the state’s records, and the place names behind them explain why. The Kansas Ecological Reserves account for 56 records and the Ross Natural History Reservation adds more, exactly the kind of properties where small-mammal surveys run trap lines year after year. When the same wet meadows get worked that consistently, a secretive runway-builder starts stacking up records. Farther from the survey hubs, Meade State Park (22 records) and Clinton Wildlife Area (14) show the species turning up well beyond one corner of the state.
A spring crest in the reports
Kansas reports peak in March, with 138 records, and rise again in October with 108. Bog lemmings don’t hibernate and stay busy under snow all winter, so the March crest most likely tracks trapping effort and breeding-season movement rather than any change in the animals themselves. Reports exist for every month of the year.
Wet ground, and a secure standing
The state’s named wetlands, Cheyenne Bottoms Wildlife Area, Quivira National Wildlife Refuge, and the playa wetlands of the western counties, hold the dense, damp grassy cover this species needs, though confirmed records from them are still thin; Cheyenne Bottoms shows just 4. NatureServe ranks the species S4 in Kansas, apparently secure, and it carries no separate state listing.
Full species profile
