USGS: Science Topics: field sampling

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Field sampling

Collecting pieces or specimens or making measurements or observations at determined intervals or areas. Results may be used as representative of the whole research area or population.

Subtopics:
Animal tracking (13 items)
Capturing (animals) (20 items)
Drilling and coring (20 items)
Plant and animal tagging (7 items)
Plot sampling (2 items)
Sexing (plants & animals) (3 items)
Specimen collecting (21 items)
Transect sampling (1 items)
Trenching (1 items)
Water sampling (51 items)

Fish inventories (10 items)

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Results 41 - 50 of 141 listed by similarity [list alphabetically]

Flying by Night: USGS Scientists Put Technology to Work on Bats [More info]: Short description of techniques used to monitor migration patterns and behavior of bats in New Mexico.
Forum on Wildlife Telemetry - Innovations, Evaluations, and Research Needs [More info]: Papers from Forum on Wildlife Telemetry, Snowmass Village, CO, 1997 about innovations in transmitting and receiving systems, attachment techniques, collection of data using telemetry, data processing and analysis. Available as *.zip file to download.
Frequent arousal from hibernation linked to severity of infection and mortality in bats with white-nose syndrome [More info]: By attaching data loggers to bats, we found bats infected with white-nose syndrome awoke from hibernation more frequently, which may contribute to increased mortality.
Great Lakes Science Center research vessels [More info]: Description of ships used for Great Lakes research by scientists at the Great Lakes Science Center.
Ground-water monitoring for pesticides in Wyoming [More info]: Sampling program to determine if pesticides are present in ground water, in accordance with Wyoming's Generic State Management Plan for Pesticides in Ground Water (SMP).
Gulf of Mexico Climate-History Calibration Study [More info]: Proxy methods allow us to estimate ancient ocean temperatures but only if the method is calibrated using modern samples for which we measure the temperature. This is a proxy method using a sediment trap to collect planktonic foraminifera.
Gulf of Mexico deep-sea coral ecosystem studies, 2008-2011 [More info]: Deep-sea corals, also known as cold-water corals, have become a topic of interest due to conservation concerns over the impacts of trawling, exploration for oil and gas, and climate change.
Holocene evolution of Apalachicola Bay, Florida [More info]: Geophysical surveying, combined with analysis of sediment cores and radiometric dating were used to describe the likely history of formation of this area.
Identification of tsunami deposits in the geologic record; developing criteria using recent tsunami deposits [More info]: Characteristics of recent tsunami deposits, with the knowledge we have about the events that caused them, give us ways to recognize ancient deposits of this type and infer characteristics of those ancient tsunamis as well.
Interagency Grizzly Bear Study Team (IGBST) [More info]: Description of research program for immediate and long-term management of grizzly bears (Ursus arctos horribilis) inhabiting the Greater Yellowstone Ecosystem. Includes links to reports in PDF format and cooperating organizations.

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