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Keyword: endangered species

Improving habitat and connectivity model predictions with multi-scale resource selection functions from two geographic areas

Publications Posted on: April 08, 2019
Context: Habitat loss and fragmentation are the most pressing threats to biodiversity, yet assessing their impacts across broad landscapes is challenging. Information on habitat suitability is sometimes available in the form of a resource selection function model developed from a different geographical area, but its applicability is unknown until tested.

Habitat fragmentation reduces genetic diversity and connectivity of the Mexican spotted owl: A simulation study using empirical resistance models

Publications Posted on: October 03, 2018
We evaluated how differences between two empirical resistance models for the same geographic area affected predictions of gene flow processes and genetic diversity for the Mexican spotted owl (Strix occidentalis lucida). The two resistance models represented the landscape under lowand high-fragmentation parameters.

Managing forests and forest carnivores: Canada lynx and forest mosaics

Science Spotlights Posted on: September 07, 2018
The management of Canada lynx habitat is an issue that has generated much debate and litigation across the Northern (Montana, Idaho) and Southern (Colorado, Wyoming) Rocky Mountains. This species depends almost exclusively on snowshoe hare for food during winter, and this prey species is sensitive to changes in forest composition and structure. Research conducted by scientists at the Rocky Mountain Research Station, in collaboration with universities and local forest managers, is central in resolving management impasses by learning how changes in forest structure and composition can be implemented in ways that enhance the ability of Canada lynx to produce kittens.  

Spatio-temporal responses of Canada lynx (Lynx canadensis) to silvicultural treatments in the Northern Rockies, U.S.

Publications Posted on: July 10, 2018
Forest managers are often tasked with balancing opposing objectives, such as altering forest structure and conserving forest-dwelling animals. Consequently, to develop holistic strategies managers require information on how forest manipulations influence species of conservation concern, particularly those that are federally threatened or endangered.

Managing emerging threats to spotted owls

Publications Posted on: May 10, 2018
The 3 spotted owl (Strix occidentalis) subspecies in North America (i.e., northern spotted owl [S. o. caurina], California spotted owl [S. o. occidentalis], Mexican spotted owl [S. o. lucida]) have all experienced population declines over the past century due to habitat loss and fragmentation from logging.

Meta-replication reveals nonstationarity in multi-scale habitat selection of Mexican Spotted Owl

Publications Posted on: August 29, 2017
Anthropogenic environmental changes are leading to habitat loss and degradation, driving many species to extinction. In this context, habitat models become increasingly important for effective species management and conservation.

Temporal correlations in population trends: Conservation implications from time-series analysis of diverse animal taxa

Publications Posted on: November 18, 2016
Population trends play a large role in species risk assessments and conservation planning, and species are often considered threatened if their recent rate of decline meets certain thresholds, regardless how large the population is. But how reliable an indicator of extinction risk is a single estimate of population trend?

Status, ecology, and conservation of the southwestern willow flycatcher

Publications Posted on: May 12, 2016
This publication was prepared in response to a need expressed by southwestern agencies and organizations for a comprehensive assessment of the population status, history, biology, ecology, habitats, threats, and conservation of the southwestern willow flycatcher (Empidonax traillii extimus). The southwestern willow flycatcher was federally listed as an Endangered subspecies in 1995.

Conservation genetics and geographic patterns of genetic variation of the endangered officinal herb Fritillaria pallidiflora

Publications Posted on: October 06, 2015
Fritillaria pallidiflora is an endangered officinal herb distributed in the Tianshan Mountains of northwestern China. We examined its phylogeography to study evolutionary processes and suggest implications for conservation. Six haplotypes were detected based on three chloroplast non-coding spacers (psbA-trnH, rps16, and trnS-trnG); genetic variation mainly occurred among populations and SAMOVA groups.

Critically endangered species given boost by new study

Documents and Media Posted on: September 24, 2015
There is no 'magic number' for saving endangered species, a new study has found. The research, published in the journal Trends in Ecology and Evolution, offers hope for species with critically low populations. Document Type: Other Documents

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