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Software

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

Filter Total Items: 921

Spatial scale selection for greater sage-grouse population trends, Version 1.0.0 Spatial scale selection for greater sage-grouse population trends, Version 1.0.0

The distance within which populations respond to features in a landscape (scale of effect) can indicate how disturbance and management may affect wildlife. Using annual counts of male greater sage-grouse (Centrocercus urophasianus) attending 584 leks in southwest Wyoming (2003-2019) and estimates of sagebrush (Artemisia spp.) cover from a remote sensing product (Rigge et al., 2021...

ModelMuse Version 5.1.1 ModelMuse Version 5.1.1

This version of ModelMuse fixes a serious bug in ModelMuse version 5.1.

ReplicateChar package ReplicateChar package

The ReplicateChar package in R language provides functions for visualization and analysis of replicated charcoal counts within a discreet sedimentary horizon. The package consists of 1000+ lines of code and requires Windows OS for full functionality. It also integrates and automates the CharAnalysis.exe software (Higuera et.al) and allows for more efficient run times of high volumes of...

ModelMuse Version 5.1: Software Release ModelMuse Version 5.1: Software Release

ModelMuse version 5.1 updates version 5.0 by adding support for the groundwater transport process and time series files in MODFLOW 6.

A Google Earth Engine Application for Exploring Potential Changes in Design Peak-flow of US Urban Areas Driven by Land Cover Change A Google Earth Engine Application for Exploring Potential Changes in Design Peak-flow of US Urban Areas Driven by Land Cover Change

A Google Earth Engine (GEE) application was developed to explore the spatial distribution map of potential percent change (2020 compared to 1985) of design peak-flow, an average percent change (average of pixels within the selected urban area) as text, and three time-series (1985-2020) charts of design peak-flow for three precipitation frequencies (with three recurrence interval and...

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...

Integrated population model for red knot in Delaware Bay Integrated population model for red knot in Delaware Bay

This is code for an integrated population model developed to understand the effect of horseshoe crab abundance on population demographics of red knot, an Arctic-breeding shorebird. This model was developed as part of the revision to the Atlantic States Marine Fisheries Commission Adaptive Resource Management Plan for horseshoe crabs.

Optimal horseshoe crab harvest policies via approximate dynamic programming Optimal horseshoe crab harvest policies via approximate dynamic programming

Approximate Dynamic Programming relies on forward simulation of the system, so two population projection models are used, one for crabs and one for red knots. The two models are linked: HSC abundance is a predictor variable in the REKN model. Other useful outputs are produced as well, such as predictions of future harvest.

R scripts for analysis of fall photographic waterfowl surveys, Izembek NWR, Alaska, 2017-2019 R scripts for analysis of fall photographic waterfowl surveys, Izembek NWR, Alaska, 2017-2019

This code repo contains three novel scripts used in Weiser et al. (2022): one to calculate the footprint of an aerial photo (01_function_photo_footprint.r), one to run a simulation to evaluate sample sizes for the photographic survey (02_photo_sample_size_sim.r), and one to run a simulation to evaluate sample sizes for the ocular survey (03_ocular_sample_size_sim.r). For more information...

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...

spatial_nsm: Spatial estimates of soil-climate properties using a modified Newhall simulation model spatial_nsm: Spatial estimates of soil-climate properties using a modified Newhall simulation model

We developed a software framework to estimate high-resolution spatiotemporal soil moisture (monthly, annual, and seasonal) and temperature-moisture regimes. Our approach builds on the Newhall simulation model, allowing for the substitution of data and parameters, such as climate, snowmelt, soil properties, alternative potential evapotranspiration equations, and air-soil temperature...
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