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A.Z. Andis Arietta

Ecology, Evolution & Conservation

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methods

Polar projection of the upper half of a spherical panorama of a forest.

UPDATE: Smartphone Hemispherical Image Analysis

May 20, 2023October 9, 2023 azandis@gmail.com

When I first developed the method to estimate canopy metrics from smartphone spherical panoramas, I used a somewhat convoluted workflow involving command line image manipulation, a plugin for ImageJ to […]

 research  canopy estimates, forest, hemispherical photography, methods, photography, project portfolio, R, research

Visualize mixed effect regressions in R with GGplot2

December 31, 2022October 9, 2023 azandis@gmail.com

In this post, I will show some methods of displaying mixed effect regression models and associated uncertainty using non-parametric bootstrapping. This is kind of a follow-up to my previous post […]

 Uncategorized  data visualization, GGplot, methods, project portfolio, R, research, statistical model

Smartphone hemispherical photography

December 16, 2020October 9, 2023 azandis@gmail.com

Hemispherical photography is one of those tasks often prefaced by the statement, “How hard could it be?” I’m pretty sure I said something like this at the beginning of my […]

 research  ecology, forest, hemispherical photography, methods, photography, project portfolio, published, research, spherical photography

Analyzing Hemispherical Photos

February 3, 2019July 16, 2021 azandis@gmail.com

Now that you’ve got the theory, equipment, and your own hemispherical photos, the final steps are processing the photos and generating estimates of canopy and light values. [twenty20 img1=”1236″ img2=”1239″ […]

 research  forest, hemispherical photography, methods, research

Taking hemispherical canopy photos

July 24, 2018July 16, 2021 azandis@gmail.com

Be sure to check out the previous two posts: 1. Hemispherical Light Estimates 2. Hardware for Hemispherical Photos Once the theory and equipment are taken care of, you are ready […]

 research  canopy estimates, hemispherical photography, methods, photography, research

Poster: Frogz that Glowz

July 14, 2018May 5, 2020 azandis@gmail.com

I had a ton of fun presenting a poster detailing my soon-to-be published study exploring the use of calcein fluorescence marking in amphibians at this year’s Joint Meeting of Ichthyologists […]

 evolution, research, Uncategorized  calein, dispersal, methods, poster, research, wood frog

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academia Alaska art bear book review canopy estimates commentary conservation data science data visualization dispersal divergence ecology embryonic development EPA evolution expedition field notes forest GGplot hemispherical photography how to kayak local adaptation methods microgeographic microscopy outreach PhD phenology photography presentation project portfolio published R research road ecology salamander spherical photography statistical model tutorial vernal pond wilderness wolves wood frog

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Recent Posts

  • Wild Idea Podcast

  • Structural Equation Modeling in R

  • tsne plot and hierarchical tree diagram displaying the data split into 8 clusters

    Text analysis using AI in R

Contact

A. Z. Andis Arietta, PhD
Yale University
andis.arietta@aya.yale.edu

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