Maike Morrison

@maikemorrison.bsky.social

683 Followers 176 Following

Building mathematical tools to answer biological questions Ecology & evolution, sometimes microbiomes & cancer Omidyar Fellow @SFIscience.bsky.social Former PhD student with Noah Rosenberg, Stanford University MaikeMorrison.com

"I voted! / !Yo voté!" sticker featuring a road runner, a yucca, and a Zia symbol in the background
Plot showing longitudinal microbiome composition for three individuals who took an antibiotic, along with corresponding plots showing FAVA computed in sliding windows. For all subjects, FAVA increases during the antibiotic window. In one subject (XDA) we see that FAVA can return to stability (low FAVA) without returning to the pre-abx composition.
Plot showing FAVA computed with genus or CAZYme abundances across ruminant host individuals. FAVA is much higher for genus than CAZyme abundances. For both data types, FAVA peaks in the small intestine and is quite low in the large intestine, suggesting much variation across individuals would be missed with stool sampling.
Diagram showing that FAVA can incorporate a matrix giving the similarity between each pair of taxa, as well as a vector of weights for each sample, which can be particularly useful for time series data with uneven sampling times.
Schematic showing that FAVA measures variability across all rows of an OTU table at once, while other methods measure the diversity of one sample or the distance between a pair of samples.
5 relative abundance plots arranged to have increasing compositional variability (variability across relative abundance samples, here vertical bars)
Maike holding a sign in front of SF city hall. Sign is a parody of the Gadsden flag. Text on bottom says, "don't tread on me." Snake usually on Gadsden flag is replaced with a caterpillar phylogenetic tree.
Beach with palm trees and a sailboat
A sheet of colorful stamps titled "life magnified." Stamps include a moth antenna, mold spores, barnacle legs, and diatoms arranged like a snowflake.