Character displacement is commonly observed when species occur in secondary contact zones and traits related to resource competition or reproduction diverge in sympatry. However, few studies have considered the factors ...

Plant fitness strongly depends on the timing of flower production. In temperate climates most plants bloom during a relatively well-defined peak, while comparatively few species flower before or after the community peak. ...

We studied patterns of the geographic variation of mating calls of the common lesser escuerzo Odontophrynus americanus including populations living in syntopy with the closely related O. cordobae and adjacent allopatric ...

Con el enfoque en los movimientos de niños y niñas y con una lectura de América Latina en clave "sur", se toma como detonador de análisis el caso de resonancia mediática del niño sirio que se encontró en una playa griega ...

Esta pesquisa analisa as construções literárias de personagens travestis em três romances contemporâneos brasileiros, a saber: A inevitável história de Letícia Diniz (2006), de Marcelo Pedreira, Elvis e Madona: uma novela ...

Ascertaining the causes of adaptive radiation is central to understanding how new species arise and come to vary with their resources. The ecological theory posits adaptive radiation via divergent natural selection associated ...

Colleters are widely occurring in eudicots showing relevant taxonomic importance in several families. Nevertheless, there are few records in monocots, restricted to only one description of these glands in Orchidaceae. The ...

Flowers may be interpreted as complex combinations of organs functionallycoordinated to attract pollinators and to mechanically interact with the pollinator?s body,particularly when flower mechanisms are actively handled ...