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Investigating Detection and Roadside Bias in Surveys of Grassland Birds in the Northern Great Plains, ND 2015, MT 2017-2018

A biologist and field crew from Northern Prairie Wildlife Research Center visited sites nine times throughout the breeding season (late May to mid-July) to record counts of grassland birds. Surveyors applied North American Breeding Bird Survey methodology to obtain counts at On-, Near-, and Off-road Stops, but unlike the North American Breeding Bird Survey, which features a single survey at each s

Conversion of CRP Grasslands to Cropland, Grazing Lands, or Hayland: Effects on Breeding Bird Abundances in the Northern Great Plains, 1996-2017, data release

The data set consists of bird abundance data collected in undisturbed grassland fields enrolled in the Conservation Reserve Program (CRP) and former CRP fields that were converted to cropland, grazing land, or hayland in nine counties in four states (Montana, North Dakota, South Dakota, and Minnesota) in the northern Great Plains. The study was initiated in 1990, but data were only included in thi

Density and Fledging Success Data from Conservation Reserve Program Fields in North Dakota and Minnesota, 1991-1993

Field crews from Northern Prairie Wildlife Research Center from 1991-1993 in Stutsman County, North Dakota and Pope and Stevens Counties, Minnesota, gathered nest success and fledgling data from nests found within Conservation Reserve Program fields and Waterfowl Production Areas. This dataset includes nesting observations of bird species found within these two field types. The dataset includes ge

Whooping crane migration habitat selection disturbance data and maps

These data and maps were developed to support an effort to understand how whooping cranes (Grus americana) select stopover habitat in the presence of human infrastructure. Location and associated data came from whooping cranes from the Aransas-Wood Buffalo Population, 2010–2016. We marked a sample of 57 whooping cranes with leg-mounted transmitters that acquired locations via the global positionin

Source Identification of Mercury and Methylmercury using Stable Isotope Analysis in the Fox River, WI

The lower Fox River in Wisconsin is a heavily industrialized system and the major tributary to Green Bay within Lake Michigan. The region has been a listed as Area of Concern by the United States Environmental Protection Agency (USEPA), indicating severe impairment of the ecological health of the system. Remedial action has taken place along the river to remove extensive polychlorinated biphenyl (

Assessment of mercury sources in Alaskan lake food webs (version 1.1, September 2023)

This data release includes results of raw water, soil, seston, and fish tissue samples collected from lakes in southwestern Alaska between 2011 and 2016. Specifically, these data include total mercury and methylmercury concentrations in water, size-sieved seston, and particulate matter of 13 remote lakes. Additionally, these data include soil and volcanic ash measurements from the surrounding wate

Total and Methyl Mercury Water and Fish Concentrations within Everglades National Park

The data in this data release includes results from the analysis of water and fish from 76 sites in the Everglades National Park (ENP). Water and particulate matter samples were collected from 2008 to 2018 and analyzed for total mercury (THg) and methylmercury (MeHg). Filtered water samples were also analyzed for dissolved organic carbon (DOC), specific ultraviolet absorbance (SUVA), and major ani

Least tern movements and foraging behavior on the Platte River, Nebraska, 2009-2010

This data set is part of a data release as a companion to a manuscript titled "Foraging movements and colony attendance of least terns (Sternula antillarum) on the central Platte River". This data release includes three tabular digital data file representing movement patterns, behaviors, and foraging success of least terns that nested on sandpits near the Platte River during 2009 and 2010. Movemen

Dissolved oxygen, temperature, and light measured along the water-depth profile of wetlands in North Dakota, USA, 2019

This data release presents data that were collected as part of a larger effort to assess factors that regulate ecosystem metabolism in small ponds. This work was part of an international collaborative effort with the Global Lake Ecological Observatory Network (GLEON). From May to October 2019, dissolved oxygen, temperature, and light were measured throughout the water-depth profile of two natural

Properties of ice cores from Hobart Lake, North Dakota, USA, 2021

This data release presents data that were collected as part of a larger effort (Global Lake Ecological Observatory Network [GLEON] IceBlitz) to enhance understanding of the spatial and temporal variation in global lake ice properties. During January and February of 2021 ice cores were extracted from Hobart Lake, North Dakota, USA and characterized following standard procedures. Characteristics of

Carbon dioxide flux, vegetation, and soils data from artificial ponds in North Dakota, USA, 2021

This data release presents data that were collected as part of a larger effort to assess the carbon balance of recently exposed (i.e., no vegetation cover) wetland sediments. This work was part of an international collaborative effort associated with the Dryflux II project. During June and July 2021, data were collected from three artificial ponds located near Jamestown, North Dakota, to estimate

Yellowstone Thermal Feature Mercury and Methylmercury Characterization

Data in this data release were obtained from water samples collected under Yellowstone National Park (YNP) Research Permit YELL-05194 in 2017, 2019, and 2020 through the Integrated Yellowstone Studies Project funded by the Mineral Resources Program. These samples were used to assess mercury cycling within YNP. Water samples were analyzed for total mercury and methylmercury, the bioaccumulated form