Perhaps the one question I’m asked the most is how to extract values from a raster using a series of points. Today, I answer that question. I’ll… Read more “Extracting from Raster”
Delineating a Stream Network
For my masters research, I needed a fully delineated stream network map of the Great Miami River Watershed that included all first order streams. Because of this… Read more “Delineating a Stream Network”
Minimum Convex Polygon for Home Range Estimate
One of the most surprising things for me is the search terms that lead people to my website. MCP is actually the top search term. So while… Read more “Minimum Convex Polygon for Home Range Estimate”
Mosaic, or merge, rasters in R
Update Feb 5, 2022: The post showing you how to layer rasters on top of each other so that you can extract values is live. You can… Read more “Mosaic, or merge, rasters in R”
MCP, KDE, and LoCoH
Three of the most popular methods of home range estimation right now are the minimum convex polygon (MCP), kernel density estimation (KDE), and local convex hull (LoCoH).… Read more “MCP, KDE, and LoCoH”
Local convex hull or LoCoH in R
The local convex hull method of home range estimation is a relatively recent technique. It was developed in 2004 by Getz and Wilmers. You can read the… Read more “Local convex hull or LoCoH in R”
Transforming Coordinates from Lat Long to UTM
If you’re new to the world of movement and spatial ecology, its likely that you have all of your coordinates in latitude and longitude (lat long for… Read more “Transforming Coordinates from Lat Long to UTM”
Using R to Calculate KDE Home Ranges
Update: The code for using the adehabitatHR package is given below. Beneath the code will follow my original blog post for informative purposes. Please note, if you… Read more “Using R to Calculate KDE Home Ranges”
Look at the Kitties
They’re hidden very well. I heard them before I saw them. A hiss and a low growl. I was privileged to be a part of the team… Read more “Look at the Kitties”
Reflecting on Pumas
Its been a great year. Never in my wildest dreams did I imagine I would be able to approach pumas, either adults or kittens. Yet, here I… Read more “Reflecting on Pumas”
Teng Keng Vang 