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Keyword: species diversity

Does burn severity affect plant community diversity and composition in mixed conifer forests of the United States Intermountain West one decade post fire?

Publications Posted on: September 14, 2019
Background: Wildfire is an important ecological process in mixed conifer forests of the Intermountain West region of the USA. However, researchers and managers are concerned because climate warming has led to increased fire activity in recent decades.

Long-term vegetation response following post-fire straw mulching

Publications Posted on: September 14, 2019
Background: Straw mulching is one of the most common treatments applied immediately post fire to reduce soil erosion potential and mitigate post-fire effects on water quality, downstream property, and infrastructure, but little is known about the long-term effects on vegetation response. We sampled six fires that were mulched between 9 and 13 years ago in western US dry conifer forests.

100 years of vegetation change at the Sierra Ancha Experimental Forest

Projects Posted on: March 08, 2019
This project incorporates historical data collected at the Sierra Ancha Experimental Forest nearly 100 years ago to determine how plant communities have changed over that period of time.

Faunal characteristics of the Southern Rocky Mountains of New Mexico: implications for biodiversity analysis and assessment

Publications Posted on: May 12, 2016
To define the faunal context within which local and regional resource management decisions are made, conservation of biological diversity requires an understanding of regional species occurrence patterns. Our study focused on the Southern Rocky Mountains of New Mexico and included the San Juan, the Sangre de Cristo, and the Jemez Mountains.

Regional data to support biodiversity assessments: terrestrial vertebrate and butterfly data from the Southwest

Publications Posted on: May 12, 2016
Spatially explicit data on the location of species across broad geographic areas greatly facilitate effective conservation planning on lands managed for multiple uses. The importance of these data notwithstanding, our knowledge about the geography of biodiversity is remarkably incomplete.

Vegetation response after post-fire mulching and native grass seeding

Publications Posted on: July 08, 2015
Post-fire mulch and seeding treatments, often applied on steep, severely burned slopes immediately after large wildfires, are meant to reduce the potential of erosion and establishment of invasive plants, especially non-native plants, that could threaten values at risk. However, the effects of these treatments on native vegetation response post fire are little studied, especially beyond one to two years.

Landscape-level patterns of avian diversity in the Oregon Coast Range

Publications Posted on: March 14, 2012
We used a comparative mensurative landscape-level experiment to quantify the relative importance of mature forest area and fragmentation and differences among watersheds in influencing avian community diversity in the Oregon Coast Range, USA. Our study design included three large hydrological basins, two levels of fragmentation, and six levels of mature forest area. We recorded 82 species of birds in a total of 1046 plots in 30 landscapes.

Determining potential wildlife benefits from wildfire in Arizona ponderosa pine forests

Publications Posted on: May 05, 2011
Large wildfires are frequently destructive to the timber resource, but wildlife may not be so adversely affected. A study of selected species of wildlife (deer, elk, rodents, and birds) that were present on large burned areas, 1, 3, 7, and 20 years old, indicated population fluctuations and habitat changes that are, for the most part, predictable, and can be expressed in economic terms.

Similarities in riparian bird communities among elevational zones in southeastern Wyoming

Publications Posted on: September 07, 2010
I examined trends in bird species richness and overall bird abundance in riparian habitats among elevations varying from 6740 ft. to 9800 ft. in southeastern Wyoming. Bird species diversity ranged from a low of three bird species and 23 pairs in subalpine shrub willow habitat to a maximum of 21 species and 101 pairs in lowland cottonwood habitat.

Effects of plot size on forest-type algorithm accuracy

Publications Posted on: July 15, 2009
The Forest Inventory and Analysis (FIA) program utilizes an algorithm to consistently determine the forest type for forested conditions on sample plots. Forest type is determined from tree size and species information. Thus, the accuracy of results is often dependent on the number of trees present, which is highly correlated with plot area.