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Steams and lakes selected from 1:100,000 scale US Census Bureau TIGER files. Selected to approximately match data shown in USGS 1:2,000,000 scale DLG files. Names are mostly from TIGER, also from Montana DOT county maps and USGS quads. Not all polygons are water bodies. Select class > 0 before shading polygons. Select label eq "N" before labeling small scale maps, or use "routetext hydro name name" rather than "arctext" to label streams.
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Montana Census Blocks for the 2000 Census, with a subset of population data from the PL94-171 redistricting database. The Montana Census and Economic Information Center imported the TIGER/Line files to a series of ESRI shapefiles for each Montana County using TGR2SHP version 4.1 (GIS Tools, Knoxville, TN). The Montana State Library converted the data to Montana State Plane Coordinates and joined the census block files to PL 94-171 population counts using Arc/Info software from ESRI of Redlands, CA, and combined the county files as a single statewide dataset.
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Landscape conservation cooperatives (LCCs) are conservation-science partnerships between the U.S. Fish and Wildlife Service, U.S. Geological Survey (USGS), and other federal agencies, states, tribes, NGOs, universities and stakeholders within a geographically defined area. They inform resource management decisions to address national-scale stressors-including habitat fragmentation, genetic isolation, spread of invasive species, and water scarcity-all of which are accelerated by climate change.
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Conclusions: Increasing seismic line density from 0 to 8 km/km2 resulted in a 38% decline and an 82% decline in bird abundance when individuals used lines as territory boundaries or avoided edges by 50 m, respectively. When tested with ovenbirds, male ovenbirds showed a distinct use of one side of the seismic line, suggesting lines acted as territory boundaries. Ovenbirds declined with seismic line density when a threshold seismic line density of 8.5 km/km2 was reached. Above the threshold, Ovenbirds declined 19% for each 1 km/km2 increase in seismic line density. Thresholds/Learnings: Synopsis: In the boreal plains of Alberta, Canada, energy sector exploration has resulted in extensive dissection of the landscape...
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The study examined the effects of forest harvest practices that approximate natural disturbance processes to evaluate whether these practices help conserve biodiversity. Past research has shown that management practices that mimic natural disturbance events such as forest fires is a successful habitat conservation strategy, particularly for boreal forest bird communities. The study investigated how bird communities differed between postharvest and postfire stands in the mid-boreal region of Alberta. The research found that the most significant difference between postfire and postharvest landscapes is the amount and orientation of residual live and dead trees. Postfire stands consist largely of standing dead trees...
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Synopsis: Resource managers confronted with preserving ecosystems for prairie wetland birds in fragmented landscapes require landscape studies that direct conservation efforts over broad geographic regions. We investigated the role of local and landscape factors affecting habitat suitability by integrating remotely sensed wetland and land-cover data with wetland bird habitat models. We linked habitat models with locations of easement and fee-title wetlands to evaluate spatial location and extent of protected, suitable habitat. We also simulated impacts of the loss of small wetlands on suitability of larger wetlands for mobile species that use multiple wetlands. Lastly, we evaluated the efficacy of waterfowl habitat...
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Synopsis: Species status assessments are often hindered by a paucity of demographic, abundance, or distributional data. Although extinction-risk correlates have been identified, their wide applicability may be compromised by differences in the variables examined, modeling technique, and phylogenetic or distributional scale. Here, we apply a common analytical approach to examine 14 possible extinction-risk correlates for mammals, fishes, and birds throughout Canada. Among mammals, risk is positively and strongly correlated with road density and age at maturity for land animals and weakly with body size for sea dwellers. Delayed maturity is of primary importance to predicting risk status in fishes, with small body...
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Synopsis: Large-scale patterns of land use and fragmentation have been associated with the decline of many imperiled wildlife populations. Lesser prairie-chickens (Tympanuchus pallidicinctus) are restricted to the southern Great Plains of North America, and their population and range have declined by > 90% over the past 100 years. Our objective was to examine scale-dependent relationships between landscape structure and change and long-term population trends for lesser prairie-chicken populations in the southern Great Plains. We used a geographic information system (GIS) to quantify landscape composition, pattern and change at multiple scales (extents) for fragmented agricultural landscapes surrounding 10 lesser...
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The Roundtable on the Crown of the Continent seeks to enhance culture, community and conservation in the 18-million acre region surrounding Glacier and Waterton Lakes National Parks. For the last seven years, we have sponsored an annual conference celebrating the landscape and people of the region. For the last three years, we have hosted meetings for the Crown’s Tribes and First Nations.This year, our conference is in Choteau, Montana on September 25-27, 2017. On Monday, September 25th, we will host a Tribal Managers Meeting, which will give natural resource managers from the Tribes and First Nations around the Crown an opportunity to share information, perspectives and initiatives relating to aquatic invasive...
map background search result map search result map Census 2000 Blocks with Population Data Major Lakes and Streams in Montana 1:100,000 Scale Sample Map Package Great Northern LCC.mpk Modeling and field-testing of Ovenbird (Seiurus aurocapillus) responses to boreal forest dissection by energy sector development at multiple spatial scales. Changes in bird communities in boreal mixedwood forest: harvest and wildfire effects over 30 years. A landscape approach to conserving wetland bird habitat in the prairie pothole region of eastern South Dakota. Multi-scale effects of habitat loss and fragmentation on lesser prairie-chicken populations in the US souther Great Plains. Correlates of Vertebrate Extinction Risk in Canada. Connecting People to Sustain and Enhance Culture, Community & Conservation Multi-scale effects of habitat loss and fragmentation on lesser prairie-chicken populations in the US souther Great Plains. A landscape approach to conserving wetland bird habitat in the prairie pothole region of eastern South Dakota. Connecting People to Sustain and Enhance Culture, Community & Conservation Changes in bird communities in boreal mixedwood forest: harvest and wildfire effects over 30 years. Major Lakes and Streams in Montana 1:100,000 Scale Census 2000 Blocks with Population Data Modeling and field-testing of Ovenbird (Seiurus aurocapillus) responses to boreal forest dissection by energy sector development at multiple spatial scales. Correlates of Vertebrate Extinction Risk in Canada. Sample Map Package Great Northern LCC.mpk