558 items found
Type: Article
Subjects: Cougar
Midwest
<em>Puma concolor</em>
Recolonization
Midwest
<em>Puma concolor</em>
Recolonization
Type:Article
Subject:Cougar
Midwest
<em>Puma concolor</em>
Recolonization
Midwest
<em>Puma concolor</em>
Recolonization
Description:Although cougars (Puma concolor) were extirpated from much of midwestern North America around 1900, hard evidence of cougar presence has increased and populations have become established in the upper portions of the Midwest during the past 20 years. Recent occurrences of cougars in the Midwest are likely due to dispersal of subadult cougars into the region from established western populations, and may be indicative of further recolonization and range expansion. We compiled confirmed locations of cougars (i.e., via carcasses, tracks, photos, video, and DNA evidence) collected during 1990–2008 in 14 states and provinces of midwestern North America. We separated our study area into 2 regions (east and west), calculated number and types of confirmations, and assessed trends in confirmations during the study period. We recorded 178 cougar confirmations in the Midwest and the number of confirmations increased during the study period (r = 0.79, P ≤ 0.001). Confirmations by state or province ranged from 1 (Kansas, Michigan, and Ontario) to 67 (Nebraska). Carcasses were the most prevalent confirmation type (n = 56). Seventy-six percent of known-sex carcass confirmations were males, consistent with predominantly male-biased dispersal in cougars. More confirmations (P = 0.05) were recorded in the western region than the eastern region . Seventy-nine percent of cougar confirmations occurred within 50 km of highly suitable habitat (i.e., forest areas with steep terrain and low road and human densities). Given the number of cougar confirmations, the increasing frequency of occurrences, and that long-distance dispersal has been documented via radiocollared individuals, our research suggests that cougars are continuing to recolonize midwestern North America. [show more]
Type: Article
Subjects: Cougars
Human-animal relationships
Populations
Boulder, Colorado
Human-animal relationships
Populations
Boulder, Colorado
Type:Article
Subject:Cougars
Human-animal relationships
Populations
Boulder, Colorado
Human-animal relationships
Populations
Boulder, Colorado
Description:Cougars once occupied a range in the Western Hemisphere larger than that of any terrestrial mammal (other than humans) since the Pleistocene (Rabinowitz 2010). Highly adaptable, cougars inhabited deserts, grasslands, tropical rainforests, temperate mountains, and boreal forests. After Europeans settled North America, however, they virtually eliminated eastern cougar populations and dramatically reduced western populations in an effort to protect livestock and valued game species, and also to protect themselves. Later, government funded control and bounty programs, along with widespread unregulated killing of predators in the late 1800s and early 1900s, contributed to further cougar population declines. [show more]
Type: Text
Subjects: Coyotes
Type:Text
Subject:Coyotes
Description:CPW has compiled this list as a tool for homeowners to utilize when trying to minimize conflicts with coyotes. The following exclusion techniques, deterrents, and repellents were gathered from various internet searches and written source reviews. CPW has not tested these products for their effectiveness nor endorses any particular product/method. Residents are encouraged to do their own research on additional tools that may be available. [show more]
Type:Text
Subject:Coyotes
Description:CPW encourages you to take steps to eliminate attractants and participate in hazing efforts on your property (hazing would include yelling or throwing objects at coyotes that come onto your property or that approach too closely) in order to minimize conflicts with coyotes. CPW also urges you to share this information with friends, neighbors and your community since minimizing conflicts is most effective when the entire neighborhood is working together. [show more]
Type: Text
Subjects: Coyote
Gray wolf
Gray wolf
Type:Text
Subject:Coyote
Gray wolf
Gray wolf
Description:Gray wolves are about twice the size of coyotes. Coyotes are shorter, sleeker, and lighter on their feet.
Type:Text
Subject:Coyotes
Description:Coyotes in populated areas are typically less fearful of people. They have been known to attack pets and approach people too closely. Please read and share these tips with your children.
Type:
Subjects: Aquatic research
Subject:Aquatic research
Description:Bibliography of aquatic research publications, reports, and presentations
Description:Research series by agency personnel that includes 19 reports published from 1974-2001. Publications generally focus on management guidelines.Print copies located in CPW Research Library: SK 375 .D3. Access digital copy by clicking on the title below.
[show more]
Type: Article
Subjects: Camera traps
Database
Multiple observers
Photos
Wildlife cameras
Database
Multiple observers
Photos
Wildlife cameras
Type:Article
Subject:Camera traps
Database
Multiple observers
Photos
Wildlife cameras
Database
Multiple observers
Photos
Wildlife cameras
Description:
[show more]
Summary
- Contemporary methods for sampling wildlife populations include the use of remotely triggered wildlife cameras (i.e., camera traps). Such methods often result in the collection of hundreds of thousands of photos that must be identified, archived, and transformed into data formats required for statistical analyses.
- Cpw Photo Warehouse is a freely available software based in Microsoft Access® that has been customized for this purpose using Visual Basic® for Applications (VBA) code. Users navigate a series of point-and-click menu items that allow them to input information from camera deployments, automatically import photos (and image data stored within the photos) related to those deployments, and store data within a relational database. Images are seamlessly incorporated into the database windows, but are stored separately from the database.
- The database includes menu options that (i) facilitate identification of species within the images, (ii) allow users to view and filter any subset of the databased on study area, species, season, etc., and (iii) produce input files for common analyses such as occupancy, abundance, density and activity patterns using Programs mark, presence, density and the r packages ‘secr’ and ‘overlap’.
- Our database makes explicit use of multiple observers, which greatly enhances the efficiency and accuracy with which a large number of photos can be identified. Modular subsets of the data can be distributed to an unlimited number of observers on or off site for identification. Modules are then re-incorporated into the database using a custom import function.
Description:Research series by agency personnel that includes 81 reports published from 1962-2010. Publications are shorter (approximately 10-50 pages) than the Technical Publications series.Print copies located in CPW Research Library: SK 375 .A32. Access digital copy by clicking on the title below.
[show more]