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Summary of U.S. threatened and endangered species listings, 1976-2019

Datasets Posted on: December 30, 2020
These data document the summary of species, by taxonomic group, listed as threatened or endangered by the U.S. Fish & Wildlife Service from 1 July 1976 to 30 September 2019 for the United States.

Vegetation responsees to landscape structure at multiple scales across a Northern Wisconsin, USA, pine barrens landscape

Publications Posted on: June 22, 2020
Increasing awareness of the importance of scale and landscape structure to landscape processes and concern about loss of biodiversity has resulted in efforts to understand patterns of biodiversity across multiple scales. We examined plant species distributions and their relationships to landscape structure at varying spatial scales across a pine barrens landscape in northern Wisconsin, U.S.A.

Tree demography records and last recorded fire dates from the Pinaleño Demography Project, Arizona USA

Documents and Media Posted on: November 06, 2017
Enter summary (recommended) or leave this area entirely blank (delete this content) Text in the summary field displays in listings and provides more information to people browsing the site. Text in the summary field does not appear in the body of the page. Document Type: Other Documents

Viability analysis in biological evaluations: Concepts of population viability analysis, biological population, and ecological scale

Publications Posted on: June 15, 2016
Environmental protection strategies often rely on environmental impact assessments. As part of the assessment process biologists are routinely asked to evaluate the effects of management actions on plants and animals. This evaluation often requires that biologists make judgments about the viability of affected populations. However, population viability analyses that are analytically comprehensive require extensive ecological data.

Wildland fire in ecosystems: effects of fire on flora

Publications Posted on: May 12, 2016
VOLUME 2: This state-of-knowledge review about the effects of fire on flora and fuels can assist land managers with ecosystem and fire management planning and in their efforts to inform others about the ecological role of fire.

Data product for "Influence of a native legume on soil N and plant response following prescribed fire in sagebrush steppe"

Datasets Posted on: August 27, 2015
We examined the effects of prescribed fire and legume presence in Underdown Canyon located in the central Great Basin, Nevada, USA. We examined three treatments - one year post-burn, three years post-burn and unburned control in three replicate blocks. Within each treatment we measured density, biomass, cover, and nutrient content of a native legume, Lupinus argenteus (Pursh).

Data product for "Nitrogen level and legume presence affect competitive interactions between a native and invasive grass"

Datasets Posted on: August 27, 2015
We conducted a greenhouse experiment to investigate effects of the native N2-fixing legume, L. argenteus, on competitive interactions between seedlings of the non-native annual grass, B.tectorum, and a native perennial grass, E. multisetus, over a gradient of nitrogen (N) availability.

Geomorphology influences extent and composition of riparian plant communities at the watershed scale in central Nevada

Datasets Posted on: August 27, 2015
We conducted an observational study of the relationships between watershed-scale geomorphology and riparian vegetation using solely digital datasets. Watershed morphometry and geology were derived from Digital Elevation Models (DEMs) and geologic maps. Riparian corridors were classified into five vegetation types (riparian forest, riparian shrub, wet/mesic meadow, dry meadow, and shrub dry meadow) using high-resolution aerial photography.

Relationships between riparian vegetation and geomorphic process zones in the Toiyabe mountain range in Nevada

Datasets Posted on: August 27, 2015
We conducted a field observational study to investigate the ecological significance of the "process zone" geomorphic classification scheme for riparian ecosystem distribution, composition, and structure. We measured geomorphic characteristics at multiple scales in order to better understand relationships between geomorphology and riparian vegetation, and to suggest improvements to the classification scheme.

Vegetation structure and composition in the Shoshone Mountains and Toiyabe, Toquima, and Monitor ranges, Nevada (2nd Edition)

Datasets Posted on: August 27, 2015
These data document vegetation structure (trees, shrubs, and ground cover), composition of trees and shrubs (in most cases, ground cover is differentiated by functional group but not by species), and presence or absence of cheatgrass (Bromus tectorum) in canyons throughout four mountain ranges in the central Great Basin (Lander, Nye, and Eureka counties, Nevada): the Shoshone Mountains, Toiyabe Range, Toquima Range, and Monitor Range.

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