Found 94 datasets matching "Presence-absence survey".
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There are four data tables (csv documents) provided here which are formatted according to tidy data principles. We identified sites centered on known murrelet nest trees (nest sites) and on...
Search relevance: 58.46 | Views last month: 2 -
The data include ages and locations of presence/absence surveys for sagebrush (Artemesia tridentata) on the Bureau of Land Management Rio Grande del Norte National Monument, New Mexico. We sampled...
Search relevance: 46.44 | Views last month: 1 -
A presence-absence survey for small alien mammals was conducted in Kalaupapa National Historical Park. This database contains information on trap nights, number of captures, tracking tunnel...
Search relevance: 45.66 | Views last month: 0 -
The U.S. Geological Survey is investigating sources of fecal bacteria in streams in the Grand Valley of western Colorado by using quantitative polymerase chain reaction microbial source tracking...
Search relevance: 44.59 | Views last month: 0 -
This data describes a presence- absence survey for alien mammals in Kaapahu area of Haleakala National Park (HALE). Signs of mammals, as well as trapped mammals, were documented in database and...
Search relevance: 44.37 | Views last month: 0 -
This dataset was created to facilitate field-based invasive plant surveys. Each grid-cell constitutes a possible survey area within which a field surveyor documents the presence/absence of a suite...
Search relevance: 44.25 | Views last month: 0 -
This dataset was created to facilitate field-based invasive plant surveys. Each grid-cell constitutes a possible survey area within which a field surveyor documents the presence/absence of a suite...
Search relevance: 44.18 | Views last month: 0 -
This dataset was created to facilitate field-based invasive plant surveys. Each grid-cell constitutes a possible survey area within which a field surveyor documents the presence/absence of a suite...
Search relevance: 44.18 | Views last month: 0 -
This dataset was created to facilitate field-based invasive plant surveys. Each grid-cell constitutes a possible survey area within which a field surveyor documents the presence/absence of a suite...
Search relevance: 44.11 | Views last month: 1 -
This dataset was created to facilitate field-based invasive plant surveys. Each grid-cell constitutes a possible survey area within which a field surveyor documents the presence/absence of a suite...
Search relevance: 44.07 | Views last month: 1 -
This dataset was created to facilitate field-based invasive plant surveys. Each grid-cell constitutes a possible survey area within which a field surveyor documents the presence/absence of a suite...
Search relevance: 44.07 | Views last month: 0 -
This dataset was created to facilitate field-based invasive plant surveys. Each grid-cell constitutes a possible survey area within which a field surveyor documents the presence/absence of a suite...
Search relevance: 44.07 | Views last month: 0 -
This dataset was created to facilitate field-based invasive plant surveys. Each grid-cell constitutes a possible survey area within which a field surveyor documents the presence/absence of a suite...
Search relevance: 44.07 | Views last month: 0 -
This dataset contains crab data from a field survey of Chionoecetes bairdi and C. opilio collected at six designated index sites in the Bering Sea during the 2014 NOAA/NMFS/AFSC/RACE...
Search relevance: 41.53 | Views last month: 0 -
This dataset contains crab data from a field survey of Chionoecetes spp. collected during the 2016 NOAA/NMFS/AFSC/RACE groundfish and invertebrate resources bottom trawl survey of the eastern...
Search relevance: 41.39 | Views last month: 0 -
These data are in seven tables relating to surveys of eelgrass beds in Duchikthluk and Shoal Bays of Nunivak Island, Alaska. The tables provide environmental conditions, eelgrass abundance,...
Search relevance: 41.31 | Views last month: 0 -
This data release documents sensitivity of quantitative polymerase chain reaction (qPCR) assays to detect environmental DNA (eDNA) from tilapia, western mosquito fish and guppies. These assays...
Search relevance: 40.71 | Views last month: 0 -
This data release documents specificity of quantitative polymerase chain reaction (qPCR) assays to detect environmental DNA (eDNA) from tilapia, western mosquito fish and guppies. These assays...
Search relevance: 40.67 | Views last month: 0 -
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. ...
Search relevance: 39.93 | Views last month: 0 -
This dataset represents the presence/absence of non-native, woody and herbaceous cover types in vegetation patches, as mapped from high resolution imagery from 2010. Each type (woody or...
Search relevance: 39.46 | Views last month: 0
