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Software

An official USGS software project is code reviewed and approved at the bureau-level for distribution.

Filter Total Items: 962

Abstraction Layer for Ephemerides Abstraction Layer for Ephemerides

Abstraction Layer for Ephemerides version 0.9.0

Agisoft Metashape/Photoscan Automated Image Alignment and Error Reduction version 2.0 Agisoft Metashape/Photoscan Automated Image Alignment and Error Reduction version 2.0

This repository contains python scripts which automate image alignment and sparse point cloud error reduction in the Agisoft Metashape/Photoscan structure from motion photogrammetry software package using the Agisoft Metashape Python API. The current version of the script (version 2.0) approximates the workflow described in U.S. Geological Survey Open-File Report 2021-1039 (Over et al...

American alligator growth simulation and integrated population model American alligator growth simulation and integrated population model

The software consists of three scripts to be run in the R statistical program: 1) Alligator growth simulation; 2) alligator integrated population model file; and 3) data visualization script. Script #1 produces growth transition probabilities that are used in script #2. The second script uses the outputs from #1 as well as other data files to run an integrated population model. The last...

Analysis code for Quantitative method development to determine feed consumption using a dye Analysis code for Quantitative method development to determine feed consumption using a dye

This repository contains code for the analysis of Wamboldt JJ, Nelson JE, Thomas LM, Steiner JN, Hebert JL, Erickson RA, Putnam JG. Quantitative method development to determine feed consumption using a dye. North American Journal of Aquaculture The purpose of the repository is to document what analysis was run for publication and is intended for an archive rather than a production or...

Applying Simulated Treatments to Bat Populations Experiencing Severe White-nose Syndrome Mortality Applying Simulated Treatments to Bat Populations Experiencing Severe White-nose Syndrome Mortality

We developed a model allowing for the application of treatment strategies to bat populations at risk of severe mortality from WNS. The model allows the bat population to exist within a network of hibernacula and updates survival, reproduction, movement, treatment applications, and treatment related disturbance annually. For simplicity, the effects of WNS are experienced across all...

BatTool R package BatTool R package

This R package was developed to help the USFWS understand the effects of wind turbine mortality and WNS on the Indiana bat. The model has been described in a peer-reviewd (and open access publication). The package includes both a GUI and command line interface. The GUI only works for Myotis spp., although the command line tool has been expanded for two other genera of bats: Lasiurus spp...

Behavioral and Reproductive Effects of the Lampricides TFM and TFM:1% Niclosamide on Native Freshwater Mussels - SPSS Code Release Behavioral and Reproductive Effects of the Lampricides TFM and TFM:1% Niclosamide on Native Freshwater Mussels - SPSS Code Release

This study continues our investigations into the effects of lampricides on mussels by extending research into potential effects on behavioral and reproductive endpoints on the mussel plain pocketbook (Lampsilis cardium). We hypothesized that TFM and TFM:NIC would reduce the viability of free glochidia in a dose-dependent manner, that older glochidia would be more sensitive than younger...

climb8: An R package for querying and joining climate or meteorological data with USGS hydrologic data climb8: An R package for querying and joining climate or meteorological data with USGS hydrologic data

This R package, climb8, consists of functions that enable the query and joining of National Oceanographic and Atmospheric Administration's (NOAA) monthly climate data and gridMET daily meteorological data to the time and location of U.S. Geological Survey (USGS) water quality and continuous data. Functions in climb8 can import climate and meteorological data across the contiguous United...

Co-occurance Simulation Modeling Co-occurance Simulation Modeling

R-based script used to simulate patterns of co-occurrence among two hypothetical species under patterns of avoidance, aggregation, and independence when the closure assumption is met or not, analyze simulated patterns with two-species occupancy models, and summarize the results.

Code for analysis of polar bear maternal den abundance and distribution in four regions of northern Alaska and Canada within the Southern Beaufort Sea subpopulation boundary (1982-2015) Code for analysis of polar bear maternal den abundance and distribution in four regions of northern Alaska and Canada within the Southern Beaufort Sea subpopulation boundary (1982-2015)

We have archived the derived data files and R/JAGS code for our analysis as a U.S. Geological Survey data release (link ). The code is divided into three R scripts: 1) pbdens_landdens_JWM.r contains R code for fitting hierarchical Bayesian models of polar bear maternal den abundance and distribution for the Southern Beaufort Sea (SBS) subpopulation, 1982-2015. This script requires the...

Code Release for USGS Chesapeake Bay Studies - Data Catalog Application Code Release for USGS Chesapeake Bay Studies - Data Catalog Application

Code and associated files hosted on USGS GitLab which support the USGS Chesapeake Bay Studies Data Catalog Application available at https://rconnect.usgs.gov/ChesapeakeBayDataCatalog/.

Code to analyze Capture-Mark-Recapture data of San Francisco gartersnakes (Thamnophis sirtalis tetrataenia) Code to analyze Capture-Mark-Recapture data of San Francisco gartersnakes (Thamnophis sirtalis tetrataenia)

Code files "growth_analysis.R" -An R script to fit the von Bertalanffy growth model to growth data from San Francisco gartersnakes. The von Bertalanffy growth model is fit using JAGS software (Plummer 2003), and is based on the model presented in Armstrong and Brooks (2013). "survival_analysis.R" -An R script to fit the robust-design Cormack-Jolly-Seber model to capture-mark-recapture...
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