Robert Perger

4 Questions 34 Answers 0 Followers

Questions related from Robert Perger

MaxEnt: Biological significance of bad model performance?

Dear colleagues, a MaxEnt model of the present distribution of a South American spider species based on 30 collection points (crossvalidated by running 30 replicates, regularization multiplier...

12 December 2018 852 8 View

Maxent with small sample size: splitting data for training and testing?

I would like to map the current distribution of an insect using MaxEnt based on 15 samples, should be published in a small entomological journal. Is it recommendable to split the data for training...

07 July 2018 10,203 3 View

Are we actually speeding up evolution by provoking mass extinctions?

Abstract: Extinction events impact the trajectory of biological evolution significantly. They are often viewed as upheavals to the evolutionary process. In contrast, this paper supports the...

08 August 2015 8,305 3 View

Does habitat fragmentation increase or decrease biodiversity?

“Spatial analyses of genetic discontinuities among groups of populations showed a higher proportion of barriers to gene flow among small and medium fragments than between populations in continuous...

07 July 2013 8,392 55 View