Laboratório de Tecnologia Educacional BIBLIOTECA DIGITAL               DE CIÊNCIAS

Aula téorica a respeito dos métodos pata estimar peso saudável e calculo de taxa de metabolismo basal e necessidade energéticas.

Ferramenta interativa que calcula o �ndice de Massa Corporal (IMC) a partir de dados de peso (Kg) e altura (m) fornecidos pelo usuário.

folhas transpiram. Se folhas são colhidas e pesadas durante um período, a diminuição do seu peso pode ser observada. A redução no peso é devida à perda de água (na forma de vapor).

60cm Identification: there are four mostly white species of egrets in Brazil, the snowy egret can be told apart by its smaller size and also for having the tip of the beak black and for having dark legs with yellow feet. Laypeople usually think this species is a young great egret, however it is technically different enough to be place in another genus. It is bit more demanding than the great egret regarding its habitat necessities, as it does not occur in polluted waters and is more strongly associated to aquatic plants such as the water lily. Its reduced size allows this bird to walk over the aquatic plants without sinking. It feeds mainly on small fishes and tadpoles. The nest is ...

10,5 cm. The beak and a mask around the eye are bright red. The body is light brown, finely streaked. There may be a red region in the belly. As in other species of cage birds there is great color variation. Distribution: Originally in Africa but currently found in many places around the world. In Brazil it may be found in most of the country except from the Amazon region (where it may be found in the suburbs of big cities). Habitat: Open landscapes, fields, crops, gardens and parks. Diet: Seeds and occasionally insects. Reproduction: The nest is built by the couple in shrubs. Its walls are thick and made of grass, feathers and cotton. The entrance is hidden. Sometimes a false n...

23cm, Identification: the adult individuals present a dark body, red wings, a blue area around the eyes and a red waxy shield on the forehead. The feet are unusually large. The immature birds present white lower parts and brown above. The jacana has one of the largest ratios of toe length upon the body length in the animal kingdom. These extremely large toes help the bird walking over the aquatic plants without sinking. Its small wings and long legs do not make it the best of the fliers. Lives in wetlands and other sorts of water bodies. Feeds on insects, small fish and tadpoles.

10 cm. It is very small, smaller than a sparrow. The feet are relatively big. The back and wings are brown and the ventral part white barred in black. The forehead of the male is red, while the female’s is black with white dots. In the immature the head is all brown. Can be told apart from the White-Barred Piculet ( Picumnus cirratus ) for having an ochraceous region around the neck and for being darker, mainly on the upper parts. Distribution: Southeastern Brazil and spread southwards up to Argentina. Habitat: Forest edges, gallery and secondary forests, woods, parks and gardens in big cities. Diet: Feeds mainly on ants larvae and pupae, but also on other insects. Reproduction...

12,5 cm. The male’s upper parts are dark gray. The face and a ribbon around the neck (the collar) are black. The posterior part of the throat, the belly and a narrow band around the eye are white, sometimes buffy. The color of the beak varies individually. The female and the Young males are brown with the inferior parts lighter. Distribution: From Bahia to Rio Grande do Sul, Uruguay, Argentina to Peru. Habitat: Grasslands, crops. They sleep in tall grass and sugar cane crops were they may bend the stems with their weight. Diet: Feeds on grains. Follows the expansion of seed producing grasses, thus invading new areas as the Distrito Federal. Frequently eats arthropods such as inse...