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Photo © Dave Redell
Northern Long-eared Bat (Myotis septentrionalis), is listed as both State and Federally Threatened. It is usually a dull or light brown color, with a gray underbelly. Habitat for the summer may include day roosts in buildings, under tree bark or shutters, or caves during the night. Hibernation sites are often in mines or caves, and this species may co-hibernate with other species. Foraging habitat includes forested hillsides and ridges, and small ponds or streams. Mating occurs in the fall with delayed fertilization in the spring. One young is produced between May and July. See the species guidance document for avoidance measures and management guidance from the Natural Heritage Conservation Program.
The table below provides information about the protected status - both state and federal - and the rank (S and G Ranks) for Northern Long-eared Bat (Myotis septentrionalis). See the Working List Key for more information about abbreviations. Counties shaded blue have documented occurrences for this species in the Wisconsin Natural Heritage Inventory database. The map is provided as a general reference of where occurrences of this species meet NHI data standards and is not meant as a comprehensive map of all observations.
Note: Species recently added to the NHI Working List may temporarily have blank occurrence maps.
| Summary Information | |
|---|---|
| State Status | THR |
| Federal Status in Wisconsin | LT |
| State Rank | S1S2 |
| Global Rank | G2G3 |
| Tracked by NHI | Y |
| WWAP | SGCN |
This document contains identification and life history information for Northern Long-eared Bat. It also describes how to screen projects for potential impacts to this species, lists avoidance measures, and provides general management guidance.
Northern Long-eared Bat Guidance Document [PDF]
Click to view a larger version. Please considering donating a photo to the Natural Heritage Conservation Program for educational uses. Photo use
Photo © Dave Redell.
The table below lists the natural communities that are associated with Northern Long-eared Bat. Only natural communities for which Northern Long-eared Bat is "high" (score=3) or "moderate" (score=2) associated are shown. See the key to association scores for complete definitions. Please see the Wildlife Action Plan to learn how this information was developed.
The table below lists the ecological landscape association scores for Northern Long-eared Bat. The scores correspond to the map (3=High, 2=Moderate, 1=Low, 0=None). For more information, please see the Wildlife Action Plan.
Ecological priorities are the combinations of natural communities and ecological landscapes that provide Wisconsin's best opportunities to conserve important habitats for a given Species of Greatest Conservation Need. The 10 highest scoring combinations are considered ecological priorities and are listed below. More than 10 combinations are listed if multiple combinations tied for 10th place. For more information, please see the Wildlife Action Plan.
* Ecological priority score is a relative measure that is not meant for comparison between species. This score does not consider socio-economical factors that may dictate protection and/or management priorities differently than those determined solely by ecological analysis. Further, a low ecological priority score does not imply that management or preservation should not occur on a site if there are important reasons for doing so locally.
Conservation actions respond to issues or threats, which adversely affect species of greatest conservation need (SGCN) or their habitats. Besides actions such as restoring wetlands or planting resilient tree species in northern communities, research, surveys and monitoring are also among conservation actions described in the WWAP because lack of information can threaten our ability to successfully preserve and care for natural resources.