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Keyword: endangered species

Saving Holmgren’s Milkvetch: A New Approach for Imperiled Species Management

Documents and Media Posted on: September 18, 2020
Susan Meyer, a research ecologist with the Rocky Mountain Research Station in Provo, Utah, is working to expand Holmgren’s milkvetch’s footprint and save it from extinction. Document Type: Other Documents

Cattle trampling increases dormant season mortality of a globally endangered desert milkvetch

Publications Posted on: August 13, 2020
Conflicting priorities for livestock grazing management in the context of rare plant conservation are common worldwide, especially in semiarid and arid ecosystems, where open-range livestock grazing is a primary land use. Detailed information on the interaction between livestock impacts and rare plant demography would facilitate improved management, yet this information is most often not available.

Management of forests and forest carnivores: Relating landscape mosaics to habitat quality of Canada lynx at their range periphery

Publications Posted on: October 02, 2019
Connecting forest management with the conservation of forest-associated animals requires an understanding of habitat quality, as well as identifying long-term silvicultural strategies that align with high quality habitat. It is, therefore, essential to characterize the spatio-temporal dimensions of habitat quality.

Using drone imagery to census a rare desert plant

Science Spotlights Posted on: August 16, 2019
Census and monitoring are fundamental to rare plant conservation but can be expensive, labor-intensive, and damaging to fragile habitats. We developed a method using drone imagery to census populations of the endangered dwarf bear-poppy in its desert gypsum badland habitat and model its fine-scale habitat requirements. The drone can carry out a census in two days that would take two botanists a month to complete on the ground, with virtually no impact to fragile soils and biological crusts.

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.