Giacomo Assandri

6 Questions 8 Answers 0 Followers

Questions related from Giacomo Assandri

What is the best metric to measure the fragmentation of a specific landcover class in an individual homerange?

I need to extract a measure of fragmentation for each landcover class found in a individual homerange of a bird. E.g. level of fragmentation of grassland within the homerange of the bird...

14 October 2020 1,168 7 View

Is it possible to build species accumulation curves with multiple surveys and incident data?

Hi, I would like to build a species accumulation curve using specaccum function in R vegan package. The entry table should be a classic community table species by sites. However, instead of sites,...

22 February 2019 3,596 10 View

Is it available a list of all the recognized taxa (including subspecies) of Odonata for the European continent?

I'm interested to both dragonflies and damselflies.

09 January 2019 2,341 3 View

How to deal with multiple visits and spatial autocorrelation in RDA?

In particular, my questions are: -How to deal with abundances recorded during multiple visits (2 or more) to each sampling unit? I see that a common practice is to consider the maximum over the...

27 December 2017 3,008 2 View

Where can I find an indication of the temperature and precipitation trends in the Alps in the last 200 years?

I am interested to the general pattern, not on detailed data points.

22 December 2017 9,678 4 View

When parsimonious models seems to "loss" the community structure (RDA, CCA)

A common practice in community ecology studies based on multivariate techniques such as CCA, RDA, dbRDA, etc. is to try to define a parsimonious model using procedures based on p-values and R...

01 January 1970 4,849 2 View