Northern Myotis (Myotis septentrionalis)


Group	Bats
Code	AMACC01150
Order	Chiroptera
Family	Vespertilionidae
Author	(Trovessart, 1897)
Rank	G4 (definitions)
Occurrence	P (definitions)
Scale	N (definitions)

County List:


Western UP	all
Eastern UP	all
Northern LP	all
Southern LP	all

Rule:

Forested or Mixed Forested/Nonforested Landscapes

Foraging and Roosting Habitat Requirements may be distributed across the NEIGHBORHOOD

Foraging Habitat:
      (Any Forested Uplands Except Conifer Plantations (Regen))
      or (Any Forested Lowlands (Regen))
      or Grass
      or Upland Brush
      or (Lake or Pond or River)
      or Sedge Meadow
      or Edge
      or Riparian

Roosting Habitat:
      (Any Forested Uplands Except Conifer Plantations (Sm Saw or Lg Saw or Uneven))
      or (Any Forested Lowlands (Sm Saw or Lg Saw or Uneven))
   containing:
      (Snags or Living Cavity Trees)

view decision rule term definitions

Habitat List:

Habitats	Regen	Sap	Pole	Sm Saw	Lg Saw	Uneven
Aspen	YES	no	no	YES	YES	-
Paper Birch	YES	no	no	YES	YES	-
Oak	YES	no	no	YES	YES	YES
Assorted Hardwoods	YES	no	no	YES	YES	YES
Northern Hardwoods	YES	no	no	YES	YES	YES
Spruce/Fir	YES	no	no	YES	YES	YES
Hemlock	YES	no	no	YES	YES	YES
Jack Pine	YES	no	no	YES	YES	YES
Red Pine	YES	no	no	YES	YES	YES
White Pine	YES	no	no	YES	YES	YES
Conifer Plantations	no	no	no	no	no	-
Mixed Upland Hardwoods	YES	no	no	YES	YES	YES
Mixed Northern Hardwoods	YES	no	no	YES	YES	YES
Mixed Upland Conifer	YES	no	no	YES	YES	YES
Mixed Pine	YES	no	no	YES	YES	YES
Swamp Hardwoods	YES	no	no	YES	YES	YES
Balsam Poplar & Swamp Aspen & Swamp Birch	YES	no	no	YES	YES	YES
Bottomland Hardwoods	YES	no	no	YES	YES	YES
Tamarack	YES	no	no	YES	YES	YES
Northern White Cedar	YES	no	no	YES	YES	YES
Black Spruce	YES	no	no	YES	YES	YES
Mixed Lowland Hardwoods	YES	no	no	YES	YES	YES
Mixed Lowland Conifer	YES	no	no	YES	YES	YES
Non-Forested	Grass, Upland Brush, Lake, Pond, River, Sedge Meadow
Special Features	Snags, Living Cavity Trees, Edges, Riparian

view size class definitions

Literature:

Kurta, A. 1995. Mammals of the Great Lakes Region. University of Michigan Press, Ann Arbor. 376 pp.

This species hibernates in caves or abandoned mines where the temperature is usually between 36 and 45°F.

After hibernation, a northern bat migrates to summer quarters located anywhere in the Great Lakes region; however, this bat is most abundant in summer in areas near hibernacula. Males roost alone while females gather in maternity colonies containing up to 60 adults. Some northern bats seek shelter in barns, behind house shutters, or under wooden shingles, but most shun man-made retreats. Using radiotracking techniques, one of my graduate students recently located 18 trees occupied by this species. His data indicate that northern bats have preference for cavities within silver maples, although they also roost in hollow green ash and occasionally underneath the loose bark of dead trees.

This species most often feeds within forests, below the canopy but above the shrub layer. It preys upon moths, beetles, bugs, caddisflies, stoneflies, and other insects.