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Whooping cranes (Grus americana) of the Aransas-Wood Buffalo population migrate twice each year through the Great Plains in North America. Recovery activities for this endangered species include providing adequate places to stop and rest during migration, which are generally referred to as stopover sites. To assist in recovery efforts, initial estimates of stopover site use intensity are presented, which provide opportunity to identify areas across the migration range used more intensively by whooping cranes. We used location data acquired from 58 unique individuals fitted with platform transmitting terminals that collected global position system locations. Radio-tagged birds provided 2,158 stopover sites over 10...
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This layer depicts the status, or degree of disturbance, to plant communities on the main Hawaiian Islands. To more precisely identify areas where native species may presently be found, a map was generated that considers the following three categories of habitat quality: High, areas dominated by native vegetation; Medium, areas dominated by nonnative vegetation; and Low, highly modified landscapes. The primary source for mapping these three categories is the HIGAP land-cover classification (Gon, 2006). The High category includes all HIGAP land-cover classes that are considered to be either native dominated or mixed native and nonnative in order to represent those areas that have substantial native-species composition....
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The data set includes delineation of sampling strata for the six study reaches of the UMRR Program’s LTRM element. Separate strata coverages exist for each of the three monitoring components (fish, vegetation, and water quality) to meet the differing sampling needs among components. Generally, the sampling strata consist of main channel, side channel, backwater, and impounded areas. The fish component further delineates a “shoreline” portion of the strata to be used for sampling gears deployed only along the shoreline. The data are raster in origin, with the center of each pixel representing the sampling location. Cell size is typically 50 meters, although several water quality strata are at 200 meter cell size.
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The geographic information system pilot project on Pool 13 of the Upper Mississippi River System was initiated to evaluate system-wide application of various methods of capturing, processing and converting resource data. Classification schemes were developed for two data themes: land cover/land use (vegetation) and aquatic areas. Evaluation of 1:15,000 scale aerial photography indicated that (1) color infrared transparencies were essential for accurately mapping major vegetation classes and vegetation units less than 1 acre; (2) color infrared prints were essential for field work (delineating work areas on the photos and identifying in the field; (3) true color (Ektachrome) transparencies and prints were not useful...
This data set was created to facilitate the BLM Greater Sage-Grouse Land Use Planning Strategy in the Utah Sub-Region. This data was developed and addressed, and used during preparation of an environmental impact statement to consider amendments to 14 BLM land use plans throughout the State of Utah, as well as 6 Forest Service land use plans. This planning process was initiated through issuance of a Notice of Intent published on December 6, 2011. This dataset is associated with the Final Environmental Impact Statement, released to the public via a Notice of Availability on May 29, 2015. The purpose of the planning process is to address protection of greater sage-grouse, in partial response to a March 2010 decision...
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Abstract Coastal marsh within Mediterranean climate zones is exposed to episodic watershed runoff and sediment loads that occur during storm events. Simulating future marsh accretion under sea level rise calls for attention to: (a) physical processes acting over the time scale of storm events and (b) biophysical processes acting over time scales longer than storm events. Using the upper Newport Bay in Southern California as a case study, we examine the influence of event-scale processes on simulated change in marsh topography by comparing: (a) a biophysical model that integrates with an annual time step and neglects event-scale processes (BP-Annual), (b) a physical model that resolves event-scale processes but...
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This raster represents a continuous surface of sage-grouse habitat suitability index (HSI,created using ArcGIS 10.2.2) values for Nevada during the breeding season.
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Political ecology is a holistic mode of inquiry that applies political analysis to resource use and access by actors and organizations interacting in defined social and cultural contexts. This thesis uses a political ecology perspective to reveal how the Atna' Athabaskan people of South central Alaska use their knowledge of their environment to articulate a specific claim to Copper River salmon. Three case studies of Atna' public activism are presented demonstrating Atna' practice in governmental regulatory process. The position of the Atna' in the Copper River salmon fishery is contrasted with three other north Pacific Native American salmon regimes in order to demonstrate the special features of the Atna' context.
map background search result map search result map Geographic information system pilot project for the Upper Mississippi River System Basement domain map of the conterminous United States and Alaska (COPY07) Hawaii Habitat Quality (HI_HabQual) UMRGLR JV - Wetland Breeding Bird Habitat Priorities LTRM Water Quality Sampling Strata Spring Season Habitat Suitability Index raster dataset BLM UT Preliminary Disturbance Inventory Polygon Dip nets, fish wheels, and motor homes: The Atna', traditional ecological knowledge, and resource management in the Copper River fishery, Alaska Satellite boreal measurements over Alaska and Canada during June-July 2004: Simultaneous measurements of upper tropospheric CO, C2H6, HCN, CH3Cl, CH4, C2H2, CH3OH, HCOOH, OCS, and SF6 mixing ratios (DOI 10.1029/2006GB002795) Management Plan for Elk (Cervus elaphus) in the Yukon EFFECTS OF HISTORICAL TIMBER HARVESTING PRACTICES ON CARIBOU FORAGE LICHEN ABUNDANCE NEAR MARSH LAKE, YUKON  -  PHASE 1 FINAL REPORT Range ecology of the Porcupine caribou herd in Canada Extraordinary movements of the Denali caribou herd following the perfect storm Bear-human conflict management plan Multi-Decadal Simulation of Marsh Topography Under Sea Level Rise and Episodic Sediment Loads Spoon-billed Sandpiper survey near Kotzebue Alaska publications Multi-Decadal Simulation of Marsh Topography Under Sea Level Rise and Episodic Sediment Loads Dip nets, fish wheels, and motor homes: The Atna', traditional ecological knowledge, and resource management in the Copper River fishery, Alaska Spoon-billed Sandpiper survey near Kotzebue Alaska publications Bear-human conflict management plan Extraordinary movements of the Denali caribou herd following the perfect storm Hawaii Habitat Quality (HI_HabQual) BLM UT Preliminary Disturbance Inventory Polygon LTRM Water Quality Sampling Strata Spring Season Habitat Suitability Index raster dataset Range ecology of the Porcupine caribou herd in Canada Geographic information system pilot project for the Upper Mississippi River System Management Plan for Elk (Cervus elaphus) in the Yukon UMRGLR JV - Wetland Breeding Bird Habitat Priorities Satellite boreal measurements over Alaska and Canada during June-July 2004: Simultaneous measurements of upper tropospheric CO, C2H6, HCN, CH3Cl, CH4, C2H2, CH3OH, HCOOH, OCS, and SF6 mixing ratios (DOI 10.1029/2006GB002795) Basement domain map of the conterminous United States and Alaska (COPY07)