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Estimating Trophic Position Using the Package {trps}
Stable Isotopes
Trophic Dynamics
Food Webs
The purpose of this vignette is to learn how to estimate trophic position of a species using stable isotope data (
\(\delta^{13}C\)
and
\(\delta^{15}N\)
) using the package {tr…
Apr 4, 2025
Benjamin L. Hlina
MLB - Market Ranking
MLB
Generalized Additive Model
This will be a different type of post than I normally write. Most of the posts on this blog relate to fish and aquatic sciences and are not sports-related, but I thoroughly…
Oct 23, 2024
Benjamin L. Hlina
How to use {nichetools} with SIBER
Stable Isotopes
Trophic Dynamics
Food Webs
The purpose of this vignette is to use {SIBER} and {nichetools} to extract and then visualize estimates of trophic niche size and similarities and Layman community metrics…
Aug 29, 2024
Benjamin L. Hlina
How to use {nichetools} with nicheROVER
Stable Isotopes
Trophic Dynamics
Food Webs
The purpose of this vignette is to use {nicheROVER} and {nichetools} to extract and then visualize estimates of trophic niche size and similarities for multiple freshwater…
Mar 15, 2024
Benjamin L. Hlina
Estimate detection efficiency for acoustic telemetry receivers
Acoustic Telemetry
GLATOS
Generalized Linear Model
This vignette describes methods to quickly and easily calculate the distance from a receiver that a given percentage (e.g., 50%) of detections are heard. The preliminary…
Mar 5, 2024
Benjamin L. Hlina
Animal movement across a boundary
Spatial Analysis
Acoustic Telemetry
Movement
The purpose of this vignette is to determine when (i.e., time stamps), where (i.e., nodes) and how long, an animal takes to cross a boundary (i.e., line or polygon). The…
Dec 6, 2023
Benjamin L. Hlina
How to use {soapcheckr} to make soap-flim smoothers
Generalized Additive Model
Spatial Analysis
Bathymetry
The purpose of this vignette is to demonstrate an effective workflow while using {soapcheckr} to efficiently make a soap-film smoother for a Generalized Additive Model (GAM)…
Nov 12, 2023
Benjamin L. Hlina
Estimating Trophic Niches - {nicheROVER} and {ggplot2}
Stable Isotopes
Trophic Dynamics
Food Webs
The purpose of this vignette is to use {ggplot2} to visualize estimates of trophic niche size and similarities for multiple freshwater fish.
Aug 4, 2023
Benjamin L. Hlina
Shortest Paths Within a Boundary - {pathroutr}
Spatial Analysis
Acoustic Telemetry
Movement
The purpose of this vignette is to create the shortest distance among acoustic telemetry receivers within a confined boundary such as a lake, river, delta, or oceanscape.…
May 28, 2023
Benjamin L. Hlina
Shortest Paths Within a Boundary - {gdistance}
Spatial Analysis
Acoustic Telemetry
Movement
The purpose of this vignette is to create the shortest distance among acoustic telemetry receivers within a confined boundary such as a lake, river, delta, or oceanscape.…
May 26, 2023
Benjamin L. Hlina
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