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Photography with cameras Nikon D3x, Nikon D300, Canon 50D Image editing with Photoshop |
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Keyword: Birds | Overview - a b c d e f g h i j k l m n o p q r s t u v w x y z | Seite 1 von 3 1 2 3 | | | |
| ... the living of the adult beetles. The living of the larvae affects the duration of their larval stage.
In the Palearctic beetles mostly overwinter as pupa and slip off during the spring. Some species overwinter as adult beetles (for example: ladybirds and Hydrophilidae).
The most important natural enemies of the beetles are pathogens (viruses, bacteria, protozoa, fungi), parasites (Ichneumon wasps, tachina flies, Acarina) and enemies like birds, hedgehogs, shrews, bats, reptiles, spiders, fish, amphibians and even other species of beetle which feed on them.
Beetles are often divided by humans into two groups: those that are harmful and those that are beneficial. Sitophilus oryzae and ... | | |
| | Queens overwinter. They appear in March or April. Bombus pascuorum nest both above ground (old birds’ nests) and below ground (abandoned mice nests). The bees use moss, grass and animal hairs to construct a hollow sphere inside the nest. The interior of the hollow sphere is sealed with wax. The queen then forms a small tub of wax, puts pollen in i... | | |
| | | Rove beetles | | ...lly the same as the adults. While most rove beetles are predatory some species eat fungi, or putrescent animals and plants. The larvae of some species live as parasites? on the pupaeof flies. There are species of rove beetle, which only inhabit birds' nests, mammals' nests, ants' nests, termites' nests or those of wasps. In ants' nests, rove beetles hunt for their hosts, eat carrion or decimate the hatching ants. Even as migrant guests they are to find amongst hunting ants’ armies where it occu... | | |
| | Saxon Wasp - Dolichovespula saxonica | | ... 15 to 19 mm, the workers 11 to 15 mm and the drones, 13 to 15 mm. The colony can comprise 200 to 300 animals. The wasp has markings on its head which look like a crown? It is found in open countryside and wooded hills, in breeding boxes for birds, hedges or buildings.
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| | The club-shaped ends to the antennae is a feature, common to all butterflies. The typical form of butterflies flying is so-called wobble flights through which the flight path for their predators (birds) is difficult to calculate. | | |
| | ...s. Their mouthparts are usually used to sting and to suck up food.
The Nematocera are found throughout the world, mostly in the vicinity of water. Different species are common in different areas. They feed on blood, which they suck from mammals, birds, reptiles or amphibians. Crane flies, from which a total of about 4000 species are known, are not among the blood-sucking insects. They feed on nectar or water. While the Nematocera have a bad reputation amongst humans because their bites can be pa... | | |
| | Common woodlouse | | ...ant, since their gills can only absorb oxygen, when combined with a film of water. Common woodlice are active during both day and night, but prefer the darkness. They feed on plants, fruits and vegetables. Woodlice are preyed on by a variety of birds.
Adult woodlice have a life expectancy of up to 2 years. They reproduce with the onset of warmer weather. The females produce 10-70 young, up to 3 times a year. These are 2-3mm in length. The females retain the fertilized eggs in pouches. Thes... | | |
| | ... are covered in black dots. The keel of the abdomen’s roof shaped underside has a sting-like appendage. Beside the legs are defensive glands, which produce secretions with an unpleasant odour, when there is a threat from their natural enemies (i. e. birds). In the larvae these glands are located on the abdomen. | | |
| | ... small groups. The caterpillars then pupate. The pupae are brown or light green with shimmering patches and are covered in spines. 12 days after pupating the small tortoiseshell butterfly hatches. Parasitic Diptera pose a threat to the caterpillars. Birds eat the pupae, but not the caterpillars. | | |
| | Natural enemies of the ladybird are: ground beetles, Reduviidae , birds, lizards, shrews and frogs. The Dinocampus coccinellae (a parasitoid wasp) is a specialized enemy. Certain Hymenoptera, aphids and nematodes also have a harmful, parasitic relationship with ladybirds. | | |
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