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Keyword: populations

Social vulnerability to large wildfires in the western USA

Publications Posted on: July 25, 2019
Federal land managers in the US can be informed with quantitative assessments of the social conditions of the populations affected by wildfires originating on their administered lands in order to incorporate and adapt their management strategy to achieve a more targeted prioritization of community wildfire protection investments.

Consideration of extinction risks for salmonids

Publications Posted on: April 18, 2019
Under the National Forest Management Act of 1979, the USDA Forest Service is charged with maintaining viable populations of all existing native vertebrate species on lands they administer. Accomplishment of this responsibility requires complete assessment of all federally authorized, funded, or implemented projects that may jeopardize the continued existence of a species.

Wilderness science in a time of change conference-Volume 3: Wilderness as a place for scientific inquiry; 1999 May 23-27; Missoula, MT

Publications Posted on: August 01, 2018
Thirty-six papers related to the theme of wilderness as a place to conduct science are included. Five overview papers synthesize knowledge and research about basic work in the biophysical and social sciences that has been conducted in wilderness. Other papers present the results of focused basic research in wilderness, with one set of papers devoted to the conduct and management of science in wilderness.

A common framework for conservation planning: Linking individual and metapopulation models [Chapter 7]

Publications Posted on: August 01, 2018
Many populations exhibit pronounced spatial structure: dispersed areas of high population density embedded in areas of low density, with population centers connected through dispersal. This recognition has led many conservation biologists to embrace the metapopulation concept (Levins 1970) as the appropriate paradigm for reserve design structures (reviewed in Hanski 1991 and Harrison 1994).

Rapid neo-sex chromosome evolution and incipient speciation in a major forest pest

Publications Posted on: June 01, 2018
Genome evolution is predicted to be rapid following the establishment of new (neo) sex chromosomes, but it is not known if neo-sex chromosome evolution plays an important role in speciation. Here we combine extensive crossing experiments with population and functional genomic data to examine neo-XY chromosome evolution and incipient speciation in the mountain pine beetle.

Predicting global population connectivity and targeting conservation action for snow leopard across its range

Publications Posted on: September 16, 2016
Movements of individuals within and among populations help to maintain genetic variability and population viability. Therefore, understanding landscape connectivity is vital for effective species conservation. The snow leopard is endemic to mountainous areas of central Asia and occurs within 12 countries.

Prairie falcons quit nesting in response to spring snowstorm

Publications Posted on: June 15, 2016
A small population of Prairie Falcons (Falco mexicanus) (mean = 6 pairs/year) nesting in northcentral Wyoming quit nesting in response to a severe spring snowstorm in 1984. Temperatures during the April storm were similar to years when the falcons reproduced successfully, but the monthly snowfall was 89.2 cm as compared to the 30-yr monthly average of 29.92 cm (90% CI = 21.44 -38.40 cm).

Temporal variation in synchrony among chinook salmon (Oncorhynchus tshawytscha) redd counts from a wilderness area in central Idaho

Publications Posted on: May 12, 2016
Metapopulation dynamics have emerged as a key consideration in conservation planning for salmonid fishes. Implicit to many models of spatially structured populations is a degree of synchrony, or correlation, among populations.

Microhabitat selection of brood-rearing sites by greater sage-grouse in Carbon County, Wyoming

Publications Posted on: January 12, 2016
Declines in Greater Sage-Grouse (Centrocercus urophasianus, hereafter sage-grouse) populations could be attributed to low chick survival, which may be influenced by the availability of food and cover at sites used by females rearing broods.

Estimating bighorn sheep (Ovis Canadensis) abundance using noninvasive sampling at a mineral lick within a national park wilderness area

Publications Posted on: October 07, 2015
Conservation of species requires accurate population estimates. We used genetic markers from feces to determine bighorn sheep abundance for a herd that was hypothesized to be declining and in need of population status monitoring.