North Dakota Field Office
Mountain-Prairie Region

Welcome to the Species of Habitat Fragmentation Concern web page!

Before proceeding to individual species accounts please take a moment to read the following information. 

What are Species of Habitat Fragmentation Concern?

On March 23, 2012 the U.S. Fish and Wildlife Service published Land-Based Wind Energy Guidelines (available at (1.47 mb) which provides the definition (page 63) we use to determine species of habitat fragmentation concern.  

Species of habitat fragmentation concern—Species of concern for which a relevant federal, state, tribal, and/or local agency has found that separation of their habitats into smaller blocks reduces connectivity such that the individuals in the remaining habitat segments may suffer from effects such as decreased survival, reproduction, distribution, or use of the area. Habitat fragmentation from a wind energy project may create significant barriers for such species.

Based on this definition we use the best available scientific literature and the State of North Dakota’s Comprehensive Wildlife Conservation Strategy (available at to develop this list.

What does the shading on the distribution maps represent?

Distribution maps are taken directly from the North Dakota Comprehensive Wildlife Conservation Strategy and provide a highly generalized depiction of the primary and secondary range for a species in the State.  Dark shading denotes the primary range while lighter shading denotes secondary range of a species in North Dakota. 

 Example Map. 

 example map

Are these the only species of habitat fragmentation concern?

No, this web page is currently “under construction” and more species will be added later.

Where can I find more information about Endangered, Threatened or Candidate species in North Dakota?

Go to


Last updated: February 19, 2013