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  • Category: Image
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Insetos Detetives

Diversos insetos podem nos ajudar muito na investigação e resolução de diversos crimes, como casos de homicídios. Mas como exatamente eles participam deste processo? Insetos necrófagos são atraídos ao corpo em decomposição, alimentando-se de sua matéria orgênica e depositando ovos e larvas aque ali se desenvolverão. Em uma cena de crime, o perito criminal coleta larvas, ovos e pupas para identificá-los posteriormente e com base no ciclod e vida de cada espécie, é possível estimar o tempo mínimo que se passou desde a morte da vítima, o que pe muito importante para descartar e confirmas suspeitos. Além disso, os insetos podem nos trazer a informação de consumo de substâncias tóxicas pela vítim...

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Green-barred Woodpecker ( Colaptes melanochloros )

Physical appearance: 26 cm. The upper parts are green, somewhat yellow, barred in black. The inferior parts are buffy or white, also barred. The tail and the top of the head are black. The male has a red spot below the eye while in the female this spot is black. Distribution: From Eastern Amazon to Uruguay and Argentina. Habitat: Forest borders, gallery and secondary forests, woods and parks in cities. Diet: Feeds on ants and insect larva, mainly beetles. Also eats fruits. Reproduction: After courtship the couple builds a nest inside an old tree, sometimes palm trees and others. The nest is generally downwards, avoiding the water when it rains. Two to four eggs are laid and the ...

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White-tailed Kite ( Elanus leucurus )

35cm Identification: when seen from below its body is basically white with the tip of the wings and a region around the eyes black. There is a gray area on the upper parts of the wings. Its color pattern reminds that of some seagulls. The name in Portuguese – Gavião Peneira – means hovering hawk and it is due to the behavior of hovering before diving onto the prey. It is certainly one of the most beautiful hawks found in urban areas. It flies over open areas, pastures, crops and even on the banks of polluted streams in search for rats. This kite feeds mainly on large insects such as grasshoppers and beetles and on small rodents and lizards. The nest, made of twigs, is built on iso...

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Common Potoo ( Nyctibius griseus )

37cm It is a unique bird that can only be confused with other Potoos, from which it differs by being mostly gray. Not like any other bird, the Potoo is one of the best camouflaged birds on earth. It spends the whole day quietly perched on a carefully chosen branch in a way it blends with the substrate as the bird seems to be part of the tree. The large orange eyes, which could be a flaw for the camouflage are wisely covered by eyelids with a tiny fold in the middle, from which the bird can see the surroundings as the pupil is exposed while the orange iris is hidden. In the night the bird leaves its perch flying as a falcon in hunt for flying insects that it catches with its huge mouth...

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Reintrodução de espécies nativas: O caso das cutias

A figura tem como objetivo mostrar o impacto da reintrodução de uma espécie nativa em seu habitat. Assim, a imagem ilustra dos cenários. No primeiro, as cutias são reintroduzidas no meio, contribuindo com a dispersão das sementes de palmeira e mantendo a população desta planta. No segundo, as cutias estão ausentes, de modo que as sementes da palmeira são predadas por besouros e outros animais, impedindo a germinação e estabelecimento da população de palmeiras.

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Results 1 - 10 from 10 Found materials (New search)