Polymorphic species, in which multiple variants coexist within a population, are often used
as model systems in evolutionary biology. Recent research has been dominated by the …

In this contribution, the aspects of reptile and amphibian speciation that emerged from
research performed over the past decade are reviewed. First, this study assesses how …

Space is a limited resource in which many animals need to perform basic functions such as
feeding and reproducing. Competition over access to space can induce a variety of …

Color polymorphism defies evolutionary expectations as striking phenotypic variation is
maintained within a single species. Color and other traits mediate social interactions, and …

Discrete colour polymorphisms are often genetically correlated with other traits under natural
and sexual selection, such as behaviour, life history and physiology. Elucidating such …

Individuals that inhabit broad elevational ranges may experience unique environmental
challenges. Because temperature decreases with increased elevation, the ectotherms living …

Background Colour polymorphic species provide invaluable insight into processes that
generate and maintain intra-specific variation. Despite an increasing understanding of the …

Color polymorphic sexual signals are often associated with alternative reproductive
behaviors within populations, and the number, frequency, or type of morphs present often …

Parasite load significantly impacts host health and fitness and may vary substantially among
individuals within a population. The immunocompetence handicap hypothesis posits that …

Multimodal communication involves the use of signals and cues across two or more sensory
modalities. The genus Liolaemus (Iguania: Liolaemidae) offers a great potential for studies …