Filters: Tags: waterfowl (X)
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These data are in two tables relating to fall age ratios (number of juvenile birds : total birds aged) of Black Brant (Branta bernicla nigricans) staging in Izembek Lagoon, Alaska, since 1963. The first table is observation data for the age classes of Black Brant during surveys, and associated survey characteristics. The second table contains model-based estimates of age ratios by year along with Standard Error (SE), and 95% Bayesian credible intervals around estimates.
Aerial surveys with locations, habitat type, and count estimates for Sandhill Cranes (Grus canadensis) and waterfowl. Waterfowl were distinguished between ducks, dark geese, and light geese. Habitat types described include: main channel, side channel, pond or wetland, and field adjacent to river, pond, or wetland. Crane and waterfowl habitat use was collected on the North and South Platte Rivers from the confluence of the North and South Platte River near North Platte, Nebraska to the Nebraska state line. Survey data was used to create habitat use models for ducks, geese, and sandhill cranes.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: CRANES AND ALLIES,
DUCKS/GEESE/SWANS,
Data,
Datasets/Database,
Federal resource managers,
These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps. Data include species observation details such as observers, dates, location, and number of individuals seen. Field camps were located in Northern, Western, Interior, Southwest, Southcentral, and Southeast Alaska, Baja California Sur Mexico, and northern Russia.
Categories: Data;
Tags: Alaska,
Albatrosses/Petrels and Allies,
Animals/Vertebrates,
Bahia San Quintin,
Baja California Sur,
These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps in Western Alaska. Data include species observation details such as observers, dates, location, and number of individuals seen. Included are data from three camps along the Kashunuk River within the Yukon Delta National Wildlife Refuge ("Old Chevak", "River Camp", and "Square Bend") during the summer field seasons: 1985-2012.
Categories: Publication;
Types: Citation;
Tags: Plants,
Sea-Level Rise and Coasts,
South Central CASC,
Water, Coasts and Ice,
Wetlands,
Publications that have used data collected during PRISM surveys on the Arctic National Wildlife Refuge.
Categories: Data,
Publication;
Types: Citation;
Tags: ANIMALS/VERTEBRATES,
Arctic,
BIOLOGICAL CLASSIFICATION,
BIRDS,
EARTH SCIENCE,
Tabular data that represent the proportion of area classified as waterfowl habitat for each of three series of habitat maps were developed based on water distributed across the Central Valley and Suisun Marsh in California during October-March of 2014-15 through 2017-18. We used open water data (version without cloud-filling) publicly available on Point Blue Conservation's California Water Tracker web site and which Point Blue derived at 16-18 day intervals from mosaics of Landsat 8 imagery for the region including the Central Valley and Suisun Marsh. Each record in the data set represents a mosaic within a specific range of dates of imagery that together bound the Central Valley and Suisun Marsh spatial extent....
Waterfowl are ecologically, culturally, and economically important and their annual and long-term distributions in North America can substantially impact ecological relationships and have economic impacts. In Mississippi, Arkansas and Louisiana alone, recent annual sales of Federal Duck Stamps equal $2.4 million. An intensive study in Mississippi estimated the annual total economic impact of waterfowl hunting in that state was $86.8 million. North American waterfowl number in the millions, use a diversity of aquatic and terrestrial foraging niches, and can feed at rates capable of depleting local food resources. In recent years, waterfowl appear to be wintering at more northern latitudes. Sustained northern...
Land-use change, invasive species, and climate change have dramatically impaired ecosystem function worldwide. Understanding how changes to ecosystems impact species of conservation concern is essential for effective conservation delivery. Of particular importance are environments that provide disproportionate ecosystem services. Throughout the Great Plains Landscape Conservation Cooperative, playas provide disproportionate ecological services, including essential stopover habitat for migratory waterbirds. Anthropogenic change to playa distribution, abundance, and function may impact the ecosystem services provided, with demographic consequences for priority species. We will address partner needs by developing a...
This dataset includes a polygon vector shapefile illustrating the location of rapid survey plots surveyed in the Arctic Refuge as part of the Program for Regional and International Shorebird Monitoring (PRISM). This dataset provides the geographical location of survey plots that can be linked to the data collected in the field via the PlotID field. These data do not represent all locations within the Arctic National Wildlife Refuge where specific avian species may be present, as surveys only occurred in discrete survey plots. Additionally, individual birds may have went undetected within survey plots, as detectability was likely less than 100%, and is a function of many variables, including differences in species,...
Categories: Data;
Tags: ANIMALS/VERTEBRATES,
Arctic,
BIOLOGICAL CLASSIFICATION,
BIRDS,
EARTH SCIENCE,
This file includes R code to select annual sampling units for PRISM surveys on the Arctic National Wildlife Refuge using a stratified random sampling approach. We used the Generalized Random Tessellation Stratified (GRTS) procedure (Stevens and Olsen 2004) to obtain a spatially balanced sample of 108 plots within each of the four strata to be surveyed. To determine how to allocate the 108 plots among strata, we initially used shorebird densities and variances (averaged across species) presented in Brown et al. (2007), but adjusted these values to include additional upland and riparian plots. Final allocation included 45 wetland plots, 35 moist plots, 12 upland plots, and 16 riparian plots. We also selected an additional...
Shorebird - waterfowl assemblage conservation element. Created through the union of several hydrologic datasets and waterfowl distributions: NWI wetlands polygons, Riparian areas, Canada goose ranges, White pelican ranges, Stream centerlines (buffered by 250 m).This dataset presents current and future change agent models and combined future potential for change (PFC) within waterfowl/shorebird assemblage potentially suitable habitat. The waterfowl/shorebird asemblage potentially suitable habitat extent was determined through the union of several hydrologic datasets:NWI wetlands polygons, water bodies, riparian areas, Canada goose ranges (CPW), white pelican ranges (CPW), and stream centerlines (buffered by 250 m).This...
The information and data presented herein serve as the supplement to the report, “Spatial Integration of Biological and Social Objectives to Identify Priority Landscapes for Waterfowl Habitat Conservation”. The purpose of this supplemental material is to encourage exploration of the methods used to develop the spatially explicit products presented in the report. The in depth step-by-step methodology is complemented with a geodatabase to facilitate future refinement of the model as new information becomes available in the future. To repeat the process of developing the spatially explicit products (or to create other composite spatial products by varying objectives and weights), follow the methodology described in...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Agriculture,
American Black Duck,
Biological Objectives,
Black Ducks,
Breeding Waterfowl,
In addition to current distribution of each terrestrial group species, this map shows their current and near-term status within the ecoregion. Current, long-term, and summary bioclimate data is also include for several of these terrestrial group species. The input datasets used in the distribution model are also included. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications...
Playas and other wetlands within the Great Plains Landscape Conservation Cooperative (GPLCC) provide essential habitat for many wetland-dependent vertebrate species and are especially important as migration and wintering areas for waterfowl and shorebirds. Playas in the GPLCC are at risk of unsustainable sediment accumulation, reduced inundation frequency, and declining hydroperiods due to agricultural intensification and a changing climate with expected decreases in annual precipitation, changing precipitation patterns, and higher summer temperatures. We propose to project distribution shifts and/or range reductions of several focal migrating shorebird, waterfowl, and waterbird species in response to climate change,...
Advancement in Geographical Information System (GIS) data development, management, and analysis has allowed conservation practitioners to apply ecological theory into conservation delivery at broad landscape scales. This project demonstrated that process with the creation of Decision Support Tools (DST) to guide on-the-ground habitat delivery to those areas on the landscape that, if managed, will provide the greatest biological return for the conservation dollar invested. This project focused on the habitat needs of Sandhill cranes and waterfowl, as a guild, during spring migration. Understanding the species habitat relationships for these priority species/guild will allow the conservation community to more effectively...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2013,
CRANES AND ALLIES,
DUCKS/GEESE/SWANS,
FY 2013,
Federal resource managers,
Many North American shorebird species are experiencing significant population declines, but we have incomplete information about the population sizes and trends for most species. Conservation efforts are underway throughout the Hemisphere to reverse these declines, but we cannot measure the success of those efforts until we have an accurate assessment of population sizes and trends. The Program for Regional and International Shorebird Monitoring (PRISM) is a broad-scale, multi-national effort to monitor both the sizes and trends of shorebird populations (https://www.shorebirdplan.org/science/program-for-regional-and-international-shorebird-monitoring/). PRISM also strives to describe the distribution and habitat...
Categories: Data,
Project;
Tags: ANIMALS/VERTEBRATES,
ANIMALS/VERTEBRATES,
ANIMALS/VERTEBRATES,
ANIMALS/VERTEBRATES,
Arctic,
Protocol documents providing detailed information on data collection methods including 1) Saalfeld, S. T., H. R. Gates, S. C. Brown, K. M. Sowl, B. A. Andres, J. A. Johnson, J. E. Lyons, B. J. McCaffery, and R. B. Lanctot. 2022. Survey Protocol for the Arctic Program for Regional and International Shorebird Monitoring (PRISM). Version 1.0. U.S. Fish and Wildlife Service, Division of Migratory Bird Management, Anchorage, AK and 2) annual field protocol documents.
This file provides data pertaining to bird nests found during surveys on rapid plots and includes information for each nest such as date found, species, location, and egg floatation data. These data do not represent all locations within the Arctic National Wildlife Refuge where specific avian species may be present, as surveys only occurred in discrete survey plots. Additionally, individual birds may have went undetected within survey plots, as detectability was likely less than 100%, and is a function of many variables, including differences in species, habitat, time-of-year, weather conditions, survey effort, and individual surveyor. The data providers have invested considerable effort in QA/QC, but it is possible...
This dataset includes a polygon vector shapefile that provides information pertaining to the sampling universe (i.e., the potential sampling units within the study area) from which rapid surveys were selected. To delineate sampling units (i.e., survey plots), we overlaid the 1002 Area of the Arctic NWR with a grid of 16 ha plots (400 × 400 m each) in ArcGIS 10 (Environmental Systems Research Institute, Redlands, CA, USA; Alaska Albers Equal Area Conic NAD83). Given the logistical constraints for obtaining permission to access private lands within the Arctic NWR, we limited our spatial sampling to public lands administered by the U.S. Fish and Wildlife Service using the National Wildlife Refuge Land Status Data for...
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