Factors related to dominance rank and the functions of aggression were studied in a herd of
Sorraia horses, Equus caballus, under extensive management. Subjects were 10 adult …

We test the hypothesis that the choice by traditional people of species of plants for medicinal
use does or does not depend on the families to which those species belong. Our geographic …

In this paper we review the temporal patterns of variation of rocky intertidal resident fish
assemblages and discuss possible mechanisms that may explain these patterns. These …

The Ortolan Bunting Emberiza hortulana has suffered a general decline across much of
Western Europe in recent decades. In Switzerland, only one population remains in sub …

Migration is a widespread phenomenon among birds and is likely to be subject to strong
selective pressures. Birds' annual routines and behaviors might be expected to change …

The influence of individual factors on dominance rank and the relationship between rank
distance and patterns of aggression predicted by models of evolutionarily stable strategies …

The invasive green alga Caulerpa cylindracea has become an important component of the
diet of the Mediterranean white seabream Diplodus sargus. As a consequence of this “exotic …

Migration is a critical period in a bird's life that can affect the fitness of individuals. Intra-
population migratory patterns and the way different sex and/or age classes within a …

Prototypical facial expressions of emotion, also known as universal facial expressions, are
the underpinnings of most research concerning recognition of emotions in both adults and …

Although female ornaments have been described in many taxa, the full spectrum of
information conveyed by such traits together with the potential male fitness benefits are far …