Definição: A wetland, featuring grasses, rushes, reeds, typhas, sedges, and other herbaceous plants (possibly with low-growing woody plants) in a context of shallow water.
Definição: A wetland that features permanent inundation of large areas of land by shallow bodies of water, generally with a substantial number of hummocks, or dry-land protrusions.
Definição: Behavior related to the expansion lateral surface of the body with the intention of increasing the wind resistance against the body and hence reducing the speed of falling.
Definição: where individuals of the same species (conspecifics), maintain spatial proximity with one another over time with mechanisms of social attraction
Definição: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)