The Global Positioning System (GPS) has been increasingly used during the past decade to
monitor the movements of free-ranging animals. This technology allows to automatically …

Background Genome size and gene content in bacteria are associated with their lifestyles.
Obligate intracellular bacteria (ie, mutualists and parasites) have small genomes that derived …

Studies of animal movements have been popularized for many large and shy species by the
increasing use of radio telemetry methods (VHF and GPS technologies). Data are collected …

Using the fossil record yields more detailed reconstructions of the evolutionary process than
what is obtained from contemporary lineages only. In this work, we present a stochastic …

The intracellular flea symbiont, Rickettsia felis, may meet other organisms intracellularly
such as R. typhi. We used a single-gene phylogenetic approach of the 1375 R. felis genes to …

… Under the assumption that character evolution is driven by a Markov model M , we have
seen that the best method is the so-called M -optimal method OP M . This clearly implies that …

We studied the possible effects of the expansion of ancient Mediterranean civilizations during
the five centuries before and after Christ on the European distribution of the mutant allele …

Choosing an ancestral state reconstruction method among the alternatives available for
quantitative characters may be puzzling. We present here a comparison of seven of them, …

It is well known that horizontal gene transfer (HGT) is a major force in the evolution of
prokaryotes. During the adaptation of a bacterial population to a new ecological niche, and …

Convergence is the process by which several species independently develop similar traits.
This evolutionary process is not only strongly related to fundamental questions such as the …