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Found 532 dataset(s) matching "abundance estimation".
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This project employed specialized technical SCUBA diving methods to provide the first assessment of population dynamics and habitat-related life history of reef fishes on the mesophotic reef...
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This dataset contains visual sighting whale survey from research vessels Yushin-Maru and Yushin-Maru No.2 in the North Pacific Ocean. A systematic large-scale vessel-based sighting survey was...
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Videogrammetry data taken in 2007 are used for a study of fish within coral reef ecosystems. We attempted to generate or find information on abundance, growth, sex-specific size-at maturity,...
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This dataset presents results from surface-tethered drifting sediment traps, zooplankton net tows, dissolved inorganic nutrient concentration analyses made on water column samples, and flow...
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Data represent predicted cheatgrass (Bromus tectorum) cover from a quantile regression model. We used quantile regression to model cheatgrass abundance as a function of climate, weather, and...
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This dataset contains information from capture-mark-recapture sampling of Oregon spotted frogs (Rana pretiosa) conducted 2016-2019 by USGS as part of a study relating R. pretiosa survival and...
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In this study, the U.S. Geological Survey investigated the use of insects as bioindicators of climate change in sagebrush steppe shrublands and grasslands in the Upper Columbia Basin. The research...
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Output (results) from programming code written to summarize red-imported fire ant (RIFA) abundance from monitoring along transects at custom 2017 GRTS draw sites within select monitoring areas...
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This dataset is a point shapefile showing the distribution of species richness, Shannon's Diversity (H), and Shannon's Evenness (J) along the Florida Keys (Key Biscayne to Key West based on data...
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Currently, the LTMMP has ~50 long-term monitoring sites across Saipan, Tinian, and Rota that are surveyed on a rotating biennial basis. Three main habitat types are covered: Fore reef, reef flat...
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From 2010 to 2015, box core grabs were collected at permanent stations around the Pacific Marine Energy Center - North Energy Test Site (PMEC-NETS) off Newport, Oregon. At each box core station a...
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Data on epiphyte load, Zostera marina biomass, nutrients, and mesograzers on epiphytes for a 4 year period at six stations within Yaquina Bay, OR. Data were used to generate the figures contained...
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This data release includes estimates of potassium (K), equivalent uranium (eU), and equivalent thorium (eTh) for the conterminous United States derived from the U.S. Geological Survey's (USGS)...
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To ensure comparable spatial and temporal coverage with similar historic datasets, we flew 32 east-west-oriented uniform transects (spaced at 15' latitude [27.8-km] intervals) when possible to the...
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Six files represent data to quantified abundance of Orthoptera and other potential arthropod prey of the Mississippi Sandhill Crane and their relationship to aboveground net primary production...
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<p>The objective of this study was to explore the R. microplus microbiome by applying the bacterial 16S tag-encoded FLX-titanium amplicon pyrosequencing (bTEFAP) technique to characterize its...
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This portion of the data release presents riparian plant species abundance (percent cover) data from plots sampled in the Elwha River estuary, Washington, in 2007 and 2014. In August 2007, we...
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We identified five common habitat types in Carpinteria Salt Marsh: channels, pans (flats), marsh, salt flat and upland. We then drew polygons around each habitat type identified from a registered...
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This file contains the flight trackline Global Positioning System (GPS) point data from the aerial surveys. Surveys were flown at 60 meters (200 feet) above sea level at 160 kilometers per hour...
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This dataset provides the results of field measurements and estimates of carbon stocks and combustion rates that characterize burned and unburned southern boreal forest stands near the La Ronge...
