Francisco O. Borges

6 Questions 4 Answers 0 Followers

Questions related from Francisco O. Borges

What distance method to use in UPGMA analysis?

Hello all, I am conducting a Bray-curtis / UPGMA analysis in R, based in a binomial dataset (presence and absence of species in specific areas). I want to cluster the areas according to their...

01 January 2019 2,771 3 View

Weighted arithmetic means vs Geometric means?

Hello all! I'm having some difficulty addressing a database problem with data of Sizes (cm). I want to calculate the geometric mean of the values of the size of a number of species in a group...

10 October 2018 3,919 6 View

Best Statistical model type for analysis?

Hello all! My question could have either a very easy or relatively complex answer, but I am currently lost and would appreciate some helpful insight. I've been given a dataset with results...

03 March 2018 6,122 2 View

Best software for individual tracking in a test arena?

I was wondering, what could be the best software (freeweare) available for individual tracking. I want to continuously track the distance that a certain individual inside an arena is, with regards...

01 January 2018 4,996 2 View

What taxa of Chitons have eyes?

Hello, I'm reaching out to see if anyone knows any species / genre / subfamily of chiton which has been described to have eyes (ocelli), besides the Schizochitonidae family, and the...

11 November 2016 1,337 3 View

Good updated guides for Amphipoda identification (keys)?

I'm looking for id keys for identificating Gammarids, more specifically Echinogammarus marinus. Does anyone have a good and updated guide in pdf? Thank you

09 September 2016 5,353 5 View