Analyzing Results…Still (May 28, 2013)


“Why don’t y’all get me and my population dynamics yo?”-Phidippus princeps

Currently, the class is still a bit holed up in the stats! Univariate Negative Binomials and Multivariate Analysis is tricky stuff in R. Results aren’t super clear cut at the moment so we’ll definitely need to dive in a bit deeper to look for significant effects. It seems maybe there is significance between the Zero-Gall Control trees and everything else? Definitely, something to look into…


Yep, still a searching…

Anyhow, At the end of the day the class decided that we weren’t really ready to get results turned in by Thurday. So, heres the plan! We will still review eachothers work on Thursday and we’ll try to get as much done as we can. Its better if you can get as much as you can done by thursday so that Will and fellow peeps can help out with any roadblocks and give feedback! We will push back the due date for our Results section to either this weekend or next tuesday.

Agenda for Thursday:

1) Continued Analysis Workshop (this is the time to get help) 9:00-10:30

2) Buddy system (hook up with a buddy and discuss your results so far, give each other feed back) 10:30-11:00

3) Trade Buddies (repeat step 2) 11:00-11:30

4) Discuss general techniques for writing a results section 11:30-11:45

5) Plan for next time 11:45-11:50

As per usual, allocated times can be flexible. Also, I won’t actually be around for the first half of class so if y’all decide this agenda ain’t the best use of time, I won’t be the least bit offended if y’all scrap it altogether 🙂


Analyze that science!

7 responses to “Analyzing Results…Still (May 28, 2013)

  1. This is awesome. I love the agenda for Thursday. Here’s a question: on a scale of 1 to 10, where 1 = totally lost and 10 = totally comfortable, how are you currently feeling about analyzing your results?

    • I’d say im probably around a 6… Im having some trouble finding useful avenues to explore.

  2. Also, what is a biological explanation for the fascinating pattern that is emerging with regards to the zero-gall trees, compared to the removal and control trees?

    • If there truly is a difference between the zero gall trees and the rest of the treatments, then it could mean that galls have a long term effect on insect communities (i.e. short term effects such as those from removing galls are too small to be noticable in the narrow time frame we’ve set for this project) Maybe it takes longer for the community to respond because galls aren’t absolutely vital to most of the critters we’ve been seeing? maybe they are only mildly advantageous for some at best?

  3. I wonder if trees without galls have innately different tissue qualities (nutrient content, defensive chemistry…) than trees with galls. Maybe zero gall trees are just bad or unattractive for insects. This would mean that our removal trees could be fundamentally different than our zero gall trees even though they have the same number of galls post-treatment.

  4. It seems intriguing that the removal treatment had several trees with unusually high herbivore loads, and seemingly higher variance in herbivore numbers, while the zero-gall trees had unusually low variance, and relatively low herbivore loads. Clearly, you can take the galls off a tree, but you can’t make a zero-gall tree. (This is fun).

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