Filters: Tags: capture (X) > Date Range: {"choice":"year"} (X)
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A three-dimensional groundwater flow model using MODFLOW-NWT was developed to evaluate historical and potential stream capture in the lower Humboldt River Basin, Nevada. The Humboldt River Basin is the only river basin that is contained entirely within the state of Nevada. The effect of groundwater pumping on the Humboldt River is not well understood. Tools are needed to determine stream capture and manage groundwater pumping in the Humboldt River Basin. Previous work has demonstrated that the river’s surface-water resource is sensitive to groundwater withdrawals, which have steadily increased since the 1950s for agriculture, municipal, and mining uses. A numerical groundwater flow model was developed for the purpose...
Categories: Data Release - Revised;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Capture,
Groundwater Model,
Humboldt River Basin watershed,
Hydrology,
InlandWaters,
This dataset provides morphological and blood-derived physiological data from invasive Burmese pythons (Python bivittatus) captured in Florida. Data were collected on pythons at capture in the field and in varying lengths of time in captivity. Samples were collected immediately at handling (baseline) and 1 hour post-restraint. Physiological data include circulating corticosterone hormone levels, functional immune assays, and blood cell counts. Also included is R code ( Python_captivity_capture_code.R ) to replicate analyses used in the publication "Scales of Stress: Effects of capture and captivity in an invasive snake". For reference, the following data files are relevant to each section of the corresponding manuscript:...
Categories: Data;
Tags: Florida,
USGS Science Data Catalog (SDC),
United States,
Wildlife Biology,
biota,
A MODFLOW-NWT (version 1.0.9) model of a hypothetical stream-aquifer system is presented for the evaluation and characterization of capture map bias. The hypothetical model is a single-layer model with 30 rows and 100 columns. The hypothetical model is used to develop methods to create capture difference maps and to calculate and characterize capture map bias with sensitivity analyses. The hypothetical stream-aquifer system generally represents the arid western U.S.; however, the methods developed with this model can be applied to any model used to generate capture maps, regardless of location. The model simulates a hypothetical 200-year transient stress period after a steady-state stress period. This time period...
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