Long-eared Myotis records connect California’s feeding grounds with places suitable for daytime shelter. The Sierra Nevada, Coast Ranges, desert oases, and developed valleys create sharply different combinations of insects, flowers, caves, trees, and buildings.
Reports tend to gather near roads, towns, parks, and monitored roosts, while high ridges and open desert receive less nighttime coverage. California’s dry summers make water especially important, but records near ponds don’t establish how many bats use the surrounding landscape.
The California record set combines 93 research-grade community observations with 375 museum and survey records. Monthly patterns can also reflect weather and observer activity, so they shouldn’t be treated as a direct count of animals.




