Mountain-Prairie Region
Endangered Species Program

 

Critical Habitat

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Critical Habitat identifies specific areas, both occupied and unoccupied, that are essential to the conservation of Preble's meadow jumping mouse and that may require special management considerations or protections.  Section 7 of the Endangered Species Act will prohibit destruction or adverse modification of a critical habitat by any activity funded, authorized, or carried out by any Federal agency, and Federal Agencies proposing actions affecting areas designated as critical habitat must consult with the Service on the effects of their proposed actions, pursuant to Section 7(a)(2) of the Act.

In determining which areas (see Maps) to designate as critical habitat the Service is required to use the best scientific and commercial data available and to consider physical and biological features (primary, constituent elements) that are essential to conservation of the species, and that may require special management consideration and protection.  The primary constituent elements for the PMJM include those habitat components essential for the biological needs of reproducing, rearing of young, foraging, sheltering, hibernation, dispersal, and genetic exchange.  The PMJM is able to live and reproduce in and near riparian areas located within grassland, shrub land, forest, and mixed vegetation types where dense herbaceous or woody vegetation occurs near the ground level, where available open water exists during their active season, and where there are ample upland habitats of sufficient width and quality for foraging, hibernation, and refugia from catastrophic flooding events,  See related Critical Habitat documents, Environmental Assessment documents, and Economic Analysis documents linked below.

The critical habitat designation for PMJM defines the width of designated critical habitat as a distance outward from the river or stream edge (as defined by the ordinary high water mark) varying with the size (order) of a river or stream.  The designation includes river and stream reaches and adjacent floodplains and uplands, that are within the known geographic and elevational range of the PMJM, in the North Platte River and South Platte River drainages in Colorado and Wyoming.

 
FINAL CRITICAL HABITAT MAPS
Colorado
Index Map
Habitat Unit Code:
SP4 - North Fork Cache La Poudre River
SP5 - Cache La Poudre River
SP6 - Buckhorn Creek
SP10 - Ralston Creek
SP13 - Upper South Platte River
Wyoming
Index Map
Habitat Unit Code:
NP1 - Cottonwood Creek
NP3 - Chugwater Creek
SP1 - Lodgepole Creek & Upper Middle Lodgepole Creek
 

CRITICAL HABITAT DOCUMENTS
Federal Register Notice:  June 23, 2003, Designation of Critical Habitat for the PMJM:  Final Rule

Press Release:  June 23, 2003, USFWS Designated Critical Habitat in Colorado and Wyoming for the PMJM

Questions and Answers About Designated Critical Habitat and the PMJM

Additional Questions and Answers to Address Revisions PMJM - Designation of Critical Habitat

Questions and Answers Regarding the Designation of Critical Habitat for PMJM:  What It Means to Wyoming

Facts About Critical Habitat

FAQs for Landowners and Developers Regarding PMJM

 

ENVIRONMENTAL ASSESSMENT DOCUMENTS
Final Environmental Assessment

Finding of No Significant Impact Designation of Critical Habitat for the PMJM

 

ECONOMIC ANALYSIS DOCUMENTS

Economic Impact Analysis of Critical Habitat for the PMJM:  Summary

Addendum to the Economic Analysis of Critical Habitat for the PMJM


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