Torben Riehl

4 Questions 13 Answers 0 Followers

Questions related from Torben Riehl

How can classificatory changes be made in an objective way based on a morphological cladistic/phylogenetic analysis?

Classifications often are based on rather (highly) subjective decisions. Once you have obtained a phylogenetic tree from a parsimony analysis, which ways allow objective decisions regarding...

17 June 2013 5,482 29 View

Does anyone know an efficient way of transforming a Mesquite matrix into an Excel spreadsheet?

I would like to add a data matrix of morphological data, assembled in the software Mesquite, to a manuscript. I would either add an electronic supplement (MS Excel format) or a table as *.txt or...

12 June 2013 4,072 2 View

What could be the potential drivers for the evolution of "extreme" sexual dimorphisms in isopods and other crustaceans?

Sexual dimorphisms can be strongly pronounced in some groups of deep-sea isopods, e.g. in Macrostylidae. In these, not only primary and secondary sexual organs are affected by sexual dimorphisms...

09 May 2013 4,381 7 View

Ages and origins of the abyssal fauna

Hey deep-sea community! How old are the most prominent deep-sea clades? Is there evidence for deep-sea extinctions? What are good examples for deep-sea radiations? I would be very interested in...

01 January 1970 457 6 View