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The daily boat tracks of the 2000-2002 winter skiff-based double-sampling surveys were recorded to an onboard computer using the custom survey software RECORD (John I. Hodges, FWS-MBM-Alaska, retired). The tracks were recorded by capturing the skiff’s location from a GPS every five seconds as long as the software was running. The software was started at some time between the boat’s engine start and the start of the survey, and was shut down at some time between the end of the survey and engine shut-down. The tracks may thus include the boat’s travel to and from the home base. Note that the 2001 boat tracks are missing.
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The Alaska Swan Survey Protocol was first produced by MBM-AK sometime in the 1980s to describe a standardized method of conducting aerial swan surveys in Alaska. It was last updated in 2007. The protocol was not exclusive to the statewide Alaska Trumpeter Swan Surveys described in these metadata; however, it did generally describe these surveys’ flying technique and data collection methods.
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The Alaska Trumpeter Swan Survey was an aerial survey conducted by the U.S. Fish and Wildlife Service, Division of Migratory Bird Management, Alaska Region (MBM-AK) and partners to monitor the status of trumpeter swans (Cygnus buccinator) in Alaska. It was first conducted in 1968 and then repeated at five-year intervals from 1975 through 2015. The objectives of the survey were to estimate the abundance, distribution (1968–2005 only), and productivity of trumpeter swans in late summer, when the swans were dispersed on breeding territories and cygnets were large enough to be easily counted from the air. Estimates were obtained for the abundance of white swans (swans >1 year old), cygnets, and total swans, as well...
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We created an enduring features (EF, ecological site type, geophysical setting) dataset for Oklahoma that is similar to the EF dataset we created for Texas (see Diamond et al. 2016, Diamond and Elliott 2015, Elliott et al. 2014), . Digital soil map unit polygons (MUs), variables derived from digital elevation models (e.g. percent slope), and landform models (e.g. low, gentle slopes and flats in the Ozark and Ouachita Mountains) were combined to form this dataset. Among these, the low flats of the Ozark and Ouachita Mountains were most complicated to model because the sites had a low slope but were occupied by dry-mesic forest (in contrast to the low slope of uplands, which tended to be drier). A combination of slope...
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Population fragmentation compromises population viability, reduces a species ability to respond toclimate change, and ultimately may reduce biodiversi ty. We studied the current state and potential causes offragmentation in grizzly bears over approximat ely 1,000,000 km of western Canada, the northern United States(US), and southeast Alaska. We compiled much of our data from projects undertaken with a variety of researchobjectives including population estimation and trend, landscape fragmentation, habitat selection, vital rates, andresponse to human development. Our prim ary analytical techniques stemmed from genetic analysis of 3,134 bears,supplemented with radiotelemetry data from 792 bears. We used 15 locus microsatellite...
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This is a test metadata collection record. This is only a test. This is more text to see if updating works. This is even more text that means nothing to see if further updating still works.
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The Nebraska Game and Parks Commission (NGPC) contracted the Rainwater Basin Joint Venture (RWBJV) to conduct a black-tail prairie dog colony inventory of Nebraska using 1-meter National Agriculture Imagery Program ( 2010) aerial imagery. We estimated the extent of each colony by placing polygon vertices on the furthest visible burrows. Burrows were then re-evaluated using sub-meter resolution imagery. Burrow delineations within 3 kilometers of one another were combined and considered a single colony resulting in 669 distinct colonies totaling 97,438 acres across the state of Nebraska.
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Contemporary observations suggest that water may disappear entirely from portions of some North Slope stream-beds during periods of drought or low flow. Climate models project even drier summers in the future. This could pose a problem for migrating fish that must be able to move back and forth from breeding and summer feeding areas to scarce overwintering sites. This work uses the best available long-term hydrologic data set for the North Slope (in the upper Kuparuk River watershed) to develop a model to assess the vulnerability of stream systems to periodic drought, and the vulnerability of migrating fish to a loss of stream connectivity.
TheNorthSlopeofAlaskaliesonthenorthsideofBrooksRangeandincludesextensivecoastlinesalongtheChukchiSeaandBeaufortSea.TheseshorelinesarefundamentallydifferentfrommostofthecoastlineintheUSastheyareconsolidatedbypermafrostandsubjecttoperiglacialprocesses,includingcryogenicprocessesonshoreandnearshoreseasonalpackiceformation.ThesecoastsarehighlydynamicandundergoingsomeofthefastestretreatratesinNorthAmerica(GibbsandRichmondn.d.).Proposedoffshoreoildevelopmentactivitiesinthe ChukchiSeacoastandexistingoffshoredrillingislandsalongtheBeaufortSeacoastposeenvironmentalrisksforthesecoasts.Environmentalconcernsincludeincreasedairandseatraffic,accidentaloilspills,andpotentialportdevelopments.BOEMrequiresup-­‐to-­‐date,digitalmappingthatcanbeusedtosystematicallyassesstheseenvironmentalrisks.TheSh...
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The Anaktuvuk River Fire was the largest, highest-severity wildfire recorded on Alaska’s North Slope since records began in 1956. The 2007 Anaktuvuk River Fire was an order of magnitude larger than the average fire size in the historic record for northern Alaska and indices of severity were substantially higher than for other recorded tundra burns. An interdisciplinary team assessed fire effects including burn severity, potential plant community shifts, and effects on permafrost and active layers. Observers monumented, photographed, and measured 24 burned and 17 unburned reference transects, starting the year after the fire, and spanning the range of vegetation types and burn severities.
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The purpose of this project is to provide better information to industry and regulatory agencies regarding the likely locations of polar bear dens. This project integrates snow physics, high-resolution digital elevation data, and bear biology to produce more refined and accurate maps predicting suitable polar bear den habitat than are currently available. The work consists of data gathering, consultation between snow and bear scientists, modeling, and sensitivity studies to understand the various factors influencing den location and evolution along the Beaufort Coast.The proposed work is intended to refine current methods of identifying polar bear denning sites by incorporating higher-resolution topographic data...
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The Wildlife Conservation Society will assess the climate change vulnerability of bird species that regularly breed in substantial populations in Alaska using the NatureServe Climate Change Vulnerability Index (CCVI) tool. Initial work will focus on breeding birds in Arctic Alaska including shorebirds, waterfowl and waterbird species (loons, gulls, terns, jaegers), and land bird species (passerines, raptors, ptarmigan).
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Arctic grayling (Thymallus arcticus) have a life-history strategy specifically adapted to the extreme climate of the North. These fish migrate to spawning grounds just after breakup in the spring, then migrate to feeding sites in early summer, and finally in the fall migrate back to their overwintering sites. The Kuparuk River is a perennial stream originating in the northern foothills of the Brooks Range on the North Slope of Alaska. Sections of the Kuparuk are periodically intermittent in that, during low flows in the system, these channel reaches appear dry. The flow varies between surface and subsurface in this permafrost-dominated environment, with subsurface flow being limited to the unfrozen thaw bulb around...
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The Desert Landscape Conservation Cooperative Land Cover Map shows land cover at a regional scale (1:2,500,000). The files provided are graphic design files that can be used to plot a publication-quality, poster-size map.Scale: 1:2,500,000 Map poster dimensions: 34 x 44 inches Data sources:Land cover from North American Environmental Atlas by the Commission for Environmental Cooperation, 2010. Physiographic regions from Natural Earth 1:10 million scale Physical Labels (3.0.0) derived from Patterson’s Physical Map of the World, 2008. Hydrography, populated places, and political boundaries from National Atlas of the United States, 2004. File descriptions: DLCC_LandCover.ai is an Adobe Illustrator file. DLCC_LandCover.pdf...
Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Conservation NGOs, DATA ANALYSIS AND VISUALIZATION, Data, Data.gov Desert Landscape Conservation Cooperative, All tags...
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Climate grids for the extent of the GNLCC study area saved as asciis with a 2km resolution. These grids are saved in in the Albers Equal Area Conic projection. Summer is defined as months 7-9, while winter is defined as months 1-3. All grids with the exception of cmi.asc, dd5.asc, & growingsl.asc were produced in the program ClimateWNA, which downscales PRISM climate grids using a digital elevation model. Mean annual precipitation (mm) - aprec.asc Annual Climate moisture index (cm/year) - cmi.asc Degree-days > 5°C - dd5.asc Growing season length - growingsl.asc Isothermality (°C) - isotherm.asc Mean annual temperature (°C) - mat.asc Maximum temperature warmest month (°C) - maxtw.asc Minimum temperature coldest...
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Rainwater Harvesting and Stormwater Research is a priority research area identified by the Arizona Governor’s Blue Ribbon Panel on Water Sustainability, which recommended that universities take the lead to identify regulatory barriers, cost and benefits, water quality issues and avenues for increasing utilization of stormwater and rainwater at the regional, community and individual property level. In an effort to address the priority research area, the University of Arizona will develop a decision support tool to be used by public utilities and agencies to evaluate suitability and cost-effectiveness of rainwater and stormwater capture at various scales for multiple benefits. Data from the City of Tucson, Arizona...
map background search result map search result map Great northern landscape conservation cooperative climate grids Utility Guide to Rainwater/Stormwater Harvesting as an Adaptive Response to Climate Change Land Cover Map Rainwater Basin Image Library - 2014 spring Rainwater Basin Image Library - 2016 Spring Rainwater Basin Image Library - 2009 Spring Mapping Suitable Snow Habitat for Polar Bear Denning Along the Beaufort Coast of Alaska Linking North Slope Climate, Hydrology, and Fish Migration Linking North Slope of Alaska climate, hydrology, and fish migration North Slope Coastal Imagery Initiative Climate Change Vulnerability of Migrating Bird Species Breeding in Arctic Alaska Anaktuvuk River Fire Monitoring Oklahoma Enduring Features Slideshow Presentation File: Grizzly bears, fragmentation, connectivity, and management in the Canada - US trans-border region Population Fragmentation and Inter-EcosystemMovem ents of Grizzly Bears in Western Canada andthe Northern United States Nebraska Black-Tailed Prairie Dog Colony Delineation Using Aerial Photography - 2010 Test mdRecord Southeast Alaska Nearshore Winter Boat Tracks 2000 and 2002 Alaska Trumpeter Swan Survey 1986-2015 Alaska Trumpeter Swan Survey Protocol 2007 Anaktuvuk River Fire Monitoring Mapping Suitable Snow Habitat for Polar Bear Denning Along the Beaufort Coast of Alaska Linking North Slope Climate, Hydrology, and Fish Migration Linking North Slope of Alaska climate, hydrology, and fish migration Rainwater Basin Image Library - 2014 spring Rainwater Basin Image Library - 2016 Spring Rainwater Basin Image Library - 2009 Spring Slideshow Presentation File: Grizzly bears, fragmentation, connectivity, and management in the Canada - US trans-border region Population Fragmentation and Inter-EcosystemMovem ents of Grizzly Bears in Western Canada andthe Northern United States Great northern landscape conservation cooperative climate grids Nebraska Black-Tailed Prairie Dog Colony Delineation Using Aerial Photography - 2010 Oklahoma Enduring Features Southeast Alaska Nearshore Winter Boat Tracks 2000 and 2002 Climate Change Vulnerability of Migrating Bird Species Breeding in Arctic Alaska Utility Guide to Rainwater/Stormwater Harvesting as an Adaptive Response to Climate Change North Slope Coastal Imagery Initiative Land Cover Map Alaska Trumpeter Swan Survey 1986-2015 Alaska Trumpeter Swan Survey Protocol 2007 Test mdRecord