Professor (Associate). Department of #Plant_Ecology and #Botany at UCD | PhD in #Environmental_Sustainability & #Natural #Resources | He/ his
Joined August 2011
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Pr. A Maissour 𝕏 retweeted
Reviewing a paper that uses a shapiro-wilk test to see if their response variable is normally distributed before using linear regression. This is not necessary! Linear regression does not assume a normally distributed response, it's the residuals that are normally distributed.
ALT set.seed(3) n <- 500 # create covariate covariate <- runif(n, -10, 10) # generate response variable y <- rnorm(n, 1 + 2 * covariate, 5) # oh no, not normally distributed (p < 0.05)! shapiro.test(y) # Shapiro-Wilk normality test # # data: y # W = 0.98609, p-value = 0.0001039 # fit linear regession anyways m1 <- lm(y ~ covariate) # get model residuals, this is what we assume to be # normally distributed. m_resid <- resid(m1) # oh wow, normally distributed (p > 0.05)! shapiro.test(m_resid) # Shapiro-Wilk normality test # # data: m_resid # W = 0.99728, p-value = 0.5847
Pr. A Maissour 𝕏 retweeted
How to establish authorship contributions?
The CRediT (Contributor Roles Taxonomy) is increasingly asked for by journals at the submission process.
It can help you think about authorship contributions.
credit.niso.org/
Pr. A Maissour 𝕏 retweeted
📢 URGENT!!! We are still looking for a Master student to work on forest ecology, microclimate and conservation.
6 month internship located in Toulouse at @EDB_Lab and supervised by me and @JMSerraDiaz.
Expected start: February or March 2023
Please RT!
Pr. A Maissour 𝕏 retweeted
BioNumPy: Fast and easy analysis of biological data with Python biorxiv.org/content/10.1101/…
Pr. A Maissour 𝕏 retweeted
Remember this figure? A number of people were interested in how it was made, so here’s a how-to🧵 (1/15)
Assuming basic grasp of #RStats & Illustrator or Affinity Designer
Let me know if you need something clarified, haven't made one of these before. 😁
academic.oup.com/iob/advance…
Pr. A Maissour 𝕏 retweeted
Fun fact: If holly (Ilex aquifolium) finds its leaves are being nibbled, it switches genes on to make them spiky when they regrow. So on taller holly trees, the upper leaves (out of reach) have smooth edges, while lower leaves are prickly. Cool info from u/dirtybird971 on Reddit
Pr. A Maissour 𝕏 retweeted
Wow. Look at this great use of #Rstats #phytools plotting functions contMap & phenogram in this recent @eLife paper by @EcologicalTom et al.
"Latent functional diversity may accelerate microbial community responses to temperature fluctuations." doi.org/10.7554/eLife.80867
Pr. A Maissour 𝕏 retweeted
Linear Discriminant Analysis in R
Linear Discriminant Analysis in R, finnstats.com/index.php/2021… #programming #statistics #datascience #rstudio #rstats
Pr. A Maissour 𝕏 retweeted
Here’s what happens to regression when sample sizes are low—even with a strong underlying correlation, sampling error will erode everything
New update to the {switchboard} #RStats package for simulation visualizations coming soon!
See YouTube for more:
youtu.be/Zj3MBV4f_PE – at Tampa, FL
Pr. A Maissour 𝕏 retweeted
Early-career faculty: do yourself a favor and download our huge (updated) database of funding opportunities with have your name on it.
We list 572 (!) funding opportunities, along with description, deadline, amount, eligibility, etc.
Download here: research.jhu.edu/rdt/funding…
Pr. A Maissour 𝕏 retweeted
Excited to share our new paper about competition for light available at nature.com/articles/s41586-0…! @stan_harpole, Yann Hautier, Risto Virtanen, Mia Jessen. Thank you all wonderful people who established and maintain GCEF @UFZ_GCEF! @Martin_Schadler
Pr. A Maissour 𝕏 retweeted
“Towards a unified theory of plant photosynthesis and hydraulics”.
Our new theory of #photosynthesis is now out in Nature Plants!
The paper is open access, so do have a look!
doi.org/10.1038/s41477-022-0…
Link to a blog article in the next tweet.
Pr. A Maissour 𝕏 retweeted
Advance Access🚅: Letter to the Editor
Accurate Direct PCR With Arabidopsis and Rice
doi.org/10.1093/pcp/pcac145
Peter G Lynagh et al.💐
@WataruSakamoto3 tested this method and works very well for genotyping👍
Pr. A Maissour 𝕏 retweeted
Lámina elaborada durante el curso por @GabyLustre #México 🇲🇽, única representante de norteamérica en el curso
#Crescentia cujete
Fotos con celular. El famoso #totumo #tutuma #jícaro #cuité #morro #huacal
#plantas #botany #botánica #plants #Biology #flores #flowers #fotografia
Pr. A Maissour 𝕏 retweeted
This is how to grow a pineapple plant 🍍🪴 teapaw.org/5min__crafts/status/15…
Pr. A Maissour 𝕏 retweeted
The idea that biodiversity drives ecosystem function is deeply engrained in ecology, and has been applied to agriculture. A rigorous analysis of causation vs. correlation challenges this: "there is no causal relationship found between biodiversity and ecosystem functioning."
Pr. A Maissour 𝕏 retweeted
#macrophytemonday aquatic #plants this is Najas flexilis (nodding water nymph, wavy water nymph) common in Massachusetts ponds (all small lakes are called ponds in New England it seems.) Photos by me.
ALT wavy water nymph, Najas flexilis. Photo ©2022 by Robert Wernerehl
ALT Leaf tips of wavy water nymph, Najas flexilis. Photo ©2022 by Robert Wernerehl
ALT wavy water nymph, Najas flexilis. Photo ©2022 by Robert Wernerehl
ALT Seed of wavy water nymph, Najas flexilis. Photo ©2022 by Robert Wernerehl