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Found 478 dataset(s) matching "Replication survey".
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Population monitoring studies of harbor seals in Glacier Bay National Park, Alaska, have spanned five decades from the 1970’s to the present (Streveler 1979; Calambokidis et al. 1987; Mathews...
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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. ...
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Since 2017, U.S. Geological Survey, Western Ecological Research Center (USGS WERC) partnered with California State Parks to continue long-term, annual at-sea surveys to estimate at-sea abundance...
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These data were complied for the primary analysis underlying the resuts presented in Neher et al., Testing the Limits of Temporal Stability: Willingness to Pay Values Among Grand Canyon...
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The data described here are Structure from Motion (SfM) benthic habitat imagery from benthic transect surveys conducted at stratified random sites by the Pacific Islands Fisheries Science Center...
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This report compares estimates of suicidality (i.e., serious thoughts of suicide, suicide plans, suicide attempts, and receipt of medical care for a suicide attempt) generated from the 2008-2012...
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This report compares estimates of adult mental health from the 2009 National Survey on Drug Use and Health (NSDUH) with estimates of similar measures from 2001 to 2003 National Comorbidity Survey...
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The main objective of this methodological report is to provide comparisons between NSDUH and other national data sources for adult and adolescent mental health prevalence estimates, updating a...
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This report compares adult mental health prevalence estimates generated from the 2009 National Survey on Drug Use and Health (NSDUH) with estimates of similar measures generated from other...
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The imagery and annotations presented here were generated while testing an aerial photographic survey design to improve repeatability, transparency, and estimation of variance for annual...
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This digital data release contains geospatial geologic and paleontological data of the 1° x2 °, 1:250,000 Limon quadrangle covering eastern Colorado and western Kansas. The dataset is a digital...
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In 2021–23, the U.S. Geological Survey (USGS), in cooperation with the Ohio Division of Natural Resources, led a study to characterize baseline water quality (2021–23) in eastern Ohio, as they...
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In 2015-16, the U.S. Geological Survey (USGS), in cooperation with the Muskingum Watershed Conservancy District, conducted a study to assess baseline (2015-16) surface-water quality in six lake...
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This data collection was designed to replicate the Rand Selective Incapacitation Survey and the Iowa Risk Assessment Scale using a group of Colorado offenders. The Iowa model provides two ...
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This study was designed to clarify the status of stalking laws and their implementation needs. To accomplish this, the principal investigator conducted a survey of police and prosecutor...
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On February 5, 2010, the cargo vessel M/V Vogetrader ran aground a shallow forereef in Oahu, Hawaii. In response to the loss of natural resources, three restoration techniques were implemented in...
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Raw data from the benthic macroinvertebrate lake wide surveys conducted in Lake Michigan in 2015. These basic benthic survey data provide the number of each taxon in each replicate sample...
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The USGS National Field Manual (NFM) states “A representative sample is one that typifies in time and space that part of the aqueous system to be studied” and “obtaining representative samples is...
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In May of 2006, scientists from the Alaska Fisheries Science Center participated in a pilot outreach program in Sand Point, Alaska. At the meetings, fishermen raised a number of concerns about...
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Rapid ʽŌhiʽa Death (ROD) currently threatens ōhiʽa lehua (Metrosideros polymorpha) on Hawaiʽi Island. First identified in Puna in 2014, the disease has now spread island wide. Besides direct...
