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This USGS data release contains 7Q10 and 30Q10 [lowest annual 7-day and 30-day average streamflow that occurs (on average) once every 10 years] statistics at 292 USGS streamgages in or adjacent to New York State excluding Long Island. all_sites_wstats.csv - includes 7Q10 and 30Q10 values for all sites and includes information on results from the trend analysis and which sites have daily exceedance probability values available. site_regulated_7day_exc_perc#.csv and site_regulated_30day_exc_perc#.csv files include daily exceedance probability values for all altered sites that were not suitable for calculating low flow statistics. R scripts used to compile and screen streamgage datasets of daily flow, perform...
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Our goal was to predict road culvert passability, as defined by culvert outlet drop and outlet water velocity, for three fish swimming groups using remotely collected environmental variables that have been shown to influence the passability of road culverts.We generated four boosted regression tree models, one for road culvert outlet drop and one each for the three culvert outlet water velocities, and predicted the probability of impassable road culverts on low-order streams based on the models. Independent variables in the modelsincluded the upstream area draining to the culvert, slope at the culvert, stream segment gradient and stream reach gradient.Gradient of the stream segment was the most important predictor...
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Northern Great Lakes forests represent an ecotone in the boreal–temperate transition zone and are expected to change dramatically with climate change. Managers are increasingly seeking adaptation strategies to manage these forests. We explored the efficacy of two alternative management scenarios compared with business-as-usual (BAU) management: expanding forest reserves meant to preserve forest identity and increase resistance, and modified silviculture meant to preserve forest function and increase adaptive capacity. Our study landscapes encompassed northeastern Minnesota and northern Lower Michigan, which are predicted to experience significant changes in a future climate and represent a gradient of latitude,...
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Dispersal can strongly influence the demographic and evolutionary trajectory of populations. For many species, little is known about dispersal, despite its importance to conservation. The Greater Sage-Grouse (Centrocercus urophasianus) is a species of conservation concern that ranges across 11 western U.S. states and 2 Canadian provinces. To investigate dispersal patterns among spring breeding congregations, we examined a 21-locus microsatellite DNA dataset of 3,244 Greater Sage-Grouse sampled from 763 leks throughout Idaho, Montana, North Dakota, and South Dakota, USA, across 7 yr. We recaptured ~2% of individuals, documenting 41 instances of breeding dispersal, with 7 dispersal events of .50 km, including 1 of...
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Grassland ecosystems established under the conservation reserve program (CRP) in the Prairie Pothole Region (PPR) currently provide soil conservation and wildlife habitat services. We aimed to determine if these lands also sequester soil organic carbon (SOC), as compared with neighboring croplands across multiple farms in the North Dakota PPR. We sampled soil from small plots at 17 private farms in the central North Dakota PPR, where long-term (C15 years) grasslands managed under the CRP were paired with neighboring annual croplands. Cores were collected to 100 cm and split into 0–10, 10–20, 20–30, 30–40, 40–70, and 70–100 cm soil depth layers. We hypothesized the effect of land use on soil organic carbon (SOC),...
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Many waterbird species utilize a diversity of aquatic habitats; however, with increasing anthropogenic needs tomanage water regimes there is global concern over impacts to waterbird populations. The federally threatened pipingplover (Charadrius melodus; hereafter plovers) is a shorebird that breeds in three habitat types in the Prairie PotholeRegion of North Dakota, South Dakota, and Canada: riverine sandbars; reservoir shorelines; and prairie wetlands. Watersurface areas of these habitats fluctuate in response to wet–dry periods; decreasing water surface areas exposeshorelines that plovers utilize for nesting. Climate varies across the region so when other habitats are unavailable forplover nesting because of flooding,...
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Sediment accumulation threatens the viability and hydrologic functioning of many naturally formed depressional wetlands across the interior regions of North America. These wetlands provide many ecosystem services and vital habitats for diverse plant and animal communities. Climate change may further impact sediment accumulation rates in the context of current land use patterns. We estimated sediment accretion in wetlands within a region renowned for its large populations of breeding waterfowl and migrant shorebirds and examined the relative roles of precipitation and land use context in the sedimentation process. We modeled rates of sediment accumulation from 1971 through 2100 using the Revised Universal Soil Loss...
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Governmental and nongovernmental organizations charged with managingnatural resources increasingly emphasize the need to work across jurisdictional boundaries.Their challenge is to manage shifting resources under rapidly changing climate andland-use scenarios. Scientists, resource managers, and conservation planners, and theirorganizations and agencies routinely collaborate on projects to solve specific problems.Cooperative frameworks to programmatically address complex social–environmental issuesand develop shared research, planning, and implementation priorities are relatively new.One such framework includes 22 Landscape Conservation Cooperatives that encompass the US, Caribbean countries, and bordering regions...
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Article Introduction: Efforts to define water needs for riparian and aquatic ecosystems in arid and semi-arid systems are critical because riparian areas are essential for the survival of desert life, with stream corridors providing a large proportion of ecosystem services in these landscapes (Poff, Koestner, Neary, & Henderson, 2011; Millennium Ecosystem Assessment, 2005). To create a one-stop-shop for published ecological water needs information and illuminate critical knowledge gaps in the desert watersheds of the U.S. and Mexico, the University of Arizona’s Water Resources Research Center and the Northern Arizona University School of Earth Sciences and Environmental Sustainability created the Desert Flows Database....
Categories: Data, Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquascalientes, Arizona, Baja California, California, Chihuahua, All tags...
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Lakes are prevalent in the Arctic and thus play a key role in regional hydrology. Since manyArctic lakes are shallow and ice grows thick (historically 2 m or greater), seasonal ice commonly freezes tothe lake bed (bedfast ice) by winter’s end. Bedfast ice fundamentally alters lake energy balance and meltoutprocesses compared to deeper lakes that exceed the maximum ice thickness (floating ice) and maintainperennial liquid water below floating ice. Our analysis of lakes in northern Alaska indicated that ice-out ofbedfast ice lakes occurred on average 17 days earlier (22 June) than ice-out on adjacent floating ice lakes (9July). Earlier ice-free conditions in bedfast ice lakes caused higher open-water evaporation,...
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​Abstract: Climate change predictions include warming and drying trends, which are expected to be particularly pronounced in the southwestern United States. In this region, grassland dynamics are tightly linked to available moisture, yet it has proven difficult to resolve what aspects of climate drive vegetation change. In part, this is because it is unclear how heterogeneity in soils affects plant responses to climate. Here, we combine climate and soil properties with a mechanistic soil water model to explain temporal fluctuations in perennial grass cover, quantify where and the degree to which incorporating soil water dynamics enhances our ability to understand temporal patterns, and explore the potential consequences...
Categories: Data, Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2012, AZ-02, AZ-03, AZ-04, Academics & scientific researchers, All tags...
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The 25,000 km of shoreline in southeast Alaska was surveyed for waterbirds by fixed-wing aircraft in summer and winter during the period 1997 to 2002. A ground/boat survey double sampled 20% of the summer habitat and 5% of the winter habitat to adjust and enhance the air survey. The most abundant species during the summer surveys, with visibility correction factors applied, were gulls (Larus spp.; 306,200, CV = 0.004), scoters (Melanitta spp.; 185,700, CV = 0.004), and Harlequin Duck (Histrionicus histrionicus; 34,640, CV = 0.03). The most abundant species observed during the winter surveys were goldeneyes (Bucephala islandica and B. clangula; 121,920, CV = 0.01), gulls (105,000, CV = 0.01), Mallard (Anas platyrhynchos;...
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Conant et al. (1991) describe swan survey methods used by the U.S. Fish and Wildlife Service in Alaska and present the results of surveys using these methods. Full citation: Conant, B., J.I. Hodges, and J. G. King. 1991. Continuity and advancement of trumpeter swan Cygnus buccinator and tundra swan Cygnus columbianus population monitoring in Alaska. Pages 125-136 in J. Sears and P.J. Bacon (Eds.) 1991. Proc. Third IWRB International Swan Symposium, Oxford 1989. Wildfowl Supplement No. 1.
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Fish catch and effort data for three species caught in gill nets and trap nets between 1988 and 2019 as part of Minnesota Department of Natural Resources (MNDNR) fisheries surveys conducted during the summer and early fall are included from over 1,300 Minnesota lakes. The three fish species included are: bluegill (Lepomis marochirus) a warm-water adapted species, yellow perch (Perca flavescens) a cool-water adapted species, and cisco (Coregonus artedi) a cold-water adapted species. Additional data concerning lake characteristics and surrounding land cover were also included. Mean July lake surface temperature was calculated using simulated daily water temperatures. Watershed land use including agricultural, barren,...
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Conservation of biological communities requires accurate estimates of abundance for multiple species. Recent advances in estimating abundance of multiple species, such as Bayesian multispecies N-mixture models, account for multiple sources of variation, including detection error. However, false-positiveerrors (misidentification or double counts), which are prevalent in multispecies data sets, remain largely unaddressed. The dependent-double observer (DDO) method is an emerging method that both accounts for detection error and is suggested to reduce the occurrence of false positives because it relies on two observers working collaboratively to identify individuals. To date, the DDO method has not been combined with...
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Emerging applications of ecosystem resilience and resistance concepts in sagebrush ecosystems allow managers to better predict and mitigate impacts of wildfire and invasive annual grasses. Soil temperature and moisture strongly influence the kind and amount of vegetation, and consequently, are closely tied to sagebrush ecosystem resilience and resistance (Chambers et al. 2014). Soil taxonomic temperature and moisture regimes can be used as indicators of resilience and resistance at landscape scales to depict environmental gradients in sagebrush ecosystems that range from cold/cool-moist sites to warm-dry sites. We aggregated soil survey spatial and tabular data to facilitate broad-scale analyses of resilience and...
Categories: Data, Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Colorado, EARTH SCIENCE > LAND SURFACE > LANDSCAPE, Greater sage-grouse, Greater sage-grouse, All tags...
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A key challenge in aquatic restoration efforts is documenting locations where ecological connectivity is disrupted in water bodies that are dammed or crossed by roads (road crossings). To prioritize actions aimed at restoring connectivity, we argue that there is a need for systematic inventories of these potential barriers at regional and national scales. Here, we address this limitation for the North American Great Lakes basin by compiling the best available spatial data on the locations of dams and road crossings. Our spatial database documents 38 times as many road crossings as dams in the Great Lakes basin, and case studies indicate that, on average, only 36% of road crossings in the area are fully passable...
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Climate change poses major challenges for conservation and management because it alters the area, quality, and spatial distribution of habitat for natural populations. To assess species’ vulnerability to climate change and target ongoing conservation investments, researchers and managers often consider the effects of projected changes in climate and land use on future habitat availability and quality and the uncertainty associated with these projections. Here, we draw on tools from hydrology and climate science to project the impact of climate change on the density of wetlands in the Prairie Pothole Region of the USA, a critical area for breeding waterfowl and other wetland-dependent species. We evaluate the potential...
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This 1996 publication by John I. Hodges, James G. King, Bruce Conant, and Henry A. Hanson summarized population abundance trends of waterfowl, loons, and sandhill cranes from data collected in the Alaska strata (i.e., strata 1-11) of the North American Waterfowl Breeding Population and Habitat Survey during 1957-1994. The authors also presented results of analyses that compared the detection rates of right- vs. left-seat observers (i.e., with vs. without piloting duties).
Categories: Data, Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, All tags...


map background search result map search result map Journal Article: Soil Temperature and Moisture Regimes across Sage-Grouse Range Genetic recapture identifies long-distance breeding dispersal in Greater Sage-Grouse (Centrocercus urophasianus) Understanding Environmental Flows in Desert Rivers of the U.S. and Mexico through the Desert Flows Database Publication and Report: Ecosystem Water Balance in a Desert Grassland Publication: Restoring aquatic ecosystem connectivity requires expanding inventories of both dams and road crossings Publication: Predicting road culvert passability for migratory fishes Publication: Effects of alternative forest management on biomass and species diversity in the face of climate change in the northern Great Lakes region A multispecies dependent double-observer model: A new method to for estimating multispecies abundance Projected wetland densities under climate change: habitat loss but little geographic shift in conservation strategy Sediment Accumulation in Prairie Wetlands under a Changing Climate: the Relative Roles of Landscape and Precipitation Soil Organic Carbon Beneath Croplands and Re-established Grasslands in the North Dakota Prairie Pothole Region Depth, ice thickness, and ice-out timing cause divergent hydrologic responses among Arctic lakes Consolidation Drainage and Climate Change May Reduce Piping Plover Habitat in the Great Plains The Caribbean Landscape Conservation Cooperative: A New Framework for Effective Conservation of Natural and Cultural Resources in the Caribbean Data in Support of Predicting Climate Change Impacts on Poikilotherms Using Physiologically Guided Species Abundance Models Low-Flow Statistics for New York State, Excluding Long Island, Computed Through March 2022 Distribution and abundance of waterbirds near shore in southeast Alaska 1997-2002 Continuity and advancement of trumpeter swan Cygnus buccinator and tundra swan (Cygnus columbianus) population monitoring in Alaska 1991 publication Publication: Aerial Surveys of Waterbirds in Alaska 1957-1994 Utqiagvik Alaska Chick Monitoring publications Utqiagvik Alaska Chick Monitoring publications The Caribbean Landscape Conservation Cooperative: A New Framework for Effective Conservation of Natural and Cultural Resources in the Caribbean Depth, ice thickness, and ice-out timing cause divergent hydrologic responses among Arctic lakes Genetic recapture identifies long-distance breeding dispersal in Greater Sage-Grouse (Centrocercus urophasianus) Low-Flow Statistics for New York State, Excluding Long Island, Computed Through March 2022 Distribution and abundance of waterbirds near shore in southeast Alaska 1997-2002 Data in Support of Predicting Climate Change Impacts on Poikilotherms Using Physiologically Guided Species Abundance Models Publication: Effects of alternative forest management on biomass and species diversity in the face of climate change in the northern Great Lakes region A multispecies dependent double-observer model: A new method to for estimating multispecies abundance Projected wetland densities under climate change: habitat loss but little geographic shift in conservation strategy Soil Organic Carbon Beneath Croplands and Re-established Grasslands in the North Dakota Prairie Pothole Region Consolidation Drainage and Climate Change May Reduce Piping Plover Habitat in the Great Plains Sediment Accumulation in Prairie Wetlands under a Changing Climate: the Relative Roles of Landscape and Precipitation Journal Article: Soil Temperature and Moisture Regimes across Sage-Grouse Range Publication: Restoring aquatic ecosystem connectivity requires expanding inventories of both dams and road crossings Publication: Predicting road culvert passability for migratory fishes Understanding Environmental Flows in Desert Rivers of the U.S. and Mexico through the Desert Flows Database Publication: Aerial Surveys of Waterbirds in Alaska 1957-1994 Continuity and advancement of trumpeter swan Cygnus buccinator and tundra swan (Cygnus columbianus) population monitoring in Alaska 1991 publication Publication and Report: Ecosystem Water Balance in a Desert Grassland