Browse Items (33 total)

Concern about American pika (Ochotona princeps, pika) populations stemmed from limited research linking climate change to population extirpations in the Great Basin and Sierra Nevada Mountains (Beever et al. 2003, Moritz 2007). In October 2007, the…

Greater sage-grouse (Centrocercus urophasianus) in the Parachute-Piceance-Roan (PPR) region of western Colorado face at least two major potential stressors: projected habitat loss from energy development and a long-term decline in habitat suitability…

Range-wide declines in prairie dog (Cynomys sp.) populations have occurred, and the largest limiting factor in recent decades appears to be the high mortality and colony extirpation associated with plague (Antolin et al. 2002), caused by the…

The purpose of this compendium is to provide guidance to certified boat inspectors and decontaminators on various watercraft often used for recreational boating in Colorado. This book is not inclusive of all boats that inspectors may encounter, but…

The Brown-capped Rosy-Finch (BCRF; Leucosticte australis) is a small, hardy passerine that resides in high elevation alpine environments throughout the year. It has the smallest range of the three closely related species of Rosy-Finch (L. atrata, L.…

The mountain plover (Charadrius montanus) is a species of special concern in Colorado with >50% of the continental population believed to breed in the eastern half of the state. In eastern Colorado breeding plovers primarily use short-grass…

The Columbian sharp-tailed grouse (CSTG, Tympanuchus phasianellus columbianus) is one of six subspecies of sharp-tailed grouse in North America. CSTG currently occupy 10% of their former range due to habitat loss. Since the initiation of the…

The Columbian sharp-tailed grouse (CSTG, Tympanuchus phasianellus columbianus) is one of 6 subspecies of sharp-tailed grouse in North America. Historically its distribution ranged from the northwest in British Columbia to the southwest in Colorado.…

The mountain plover (Charadrius montanus) is a migratory shorebird which breeds on the shortgrass prairies of Colorado, Wyoming, and Montana. Continental population trends suggest a steady decline over the past century. Colorado is considered the…

Rangewide declines of greater sage-grouse and recent energy development within sagebrush habitat has led to concern for conservation of greater sage-grouse (Centrocercus urophasianus) (GRSG) populations across Colorado, including in North Park, which…