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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 2 von 3 1 2 3 | | | | Almost all spiders are land animals. They often hide during the day and are only active at dawn or at night. The water spider is the only genus which lives in water. A number of species hunt on the water surface.
Birds pose the biggest threat to spiders. However amphibians, reptiles and bats also eat spiders. Some spider species feed exclusively on other spiders. Other natural enemies are: wasps, ants, true dragonflies, small-headed flies, Nematodes and Acarina. | | |
| | ...f the eggs. Up to 100 yellow eggs are laid in these cocoons. A few days later the female autumn spider dies. The eggs overwinter in the cocoon. The new generation hatches in spring.
Some natural enemies of the autumn spider are: insectivores, birds and other spiders from the family pirate spiders (Mimetidae), for example species of the genus Ero. | | |
| | | ...ae are fully developed some time in June, they creep out of the water along a plant stem and shed their outer skin (excuvia). When their wings have dried, they fly off as adult dragonflies. The southern hawker seems to have no fear of humans. Birds pose the biggest threat as they prey on the larvae when they are on their way into the water and especially like to attack the juvenile dragonflies when they have just hatched from the excuvia. | | |
| | Birds are the most common spider predators. Amphibians, reptiles, and bats also prey on spiders on occasion. Some spider species (eg Mimetidae) feed exclusively on other spiders. Other natural enemies are: species of wasps, ants, dragonflies, ball flies,... | | |
| | Birds and insectivores are natural enemies of the Tetragnatha montana. As these spiders are very light , they can walk on water without sinking. | | |
| | During the mating season, these insects can be encountered in large swarms, searching for mates. They are of great importance in the food chain because of their large numbers, as they are used by many birds as a staple food for their offspring. | | |
| | ...like a shell. It also protects the larvae from drying out. The larvae live in compost, humus or manure where they feed on decaying plant debris (leaf debris, rotten tree bark etc). After reaching the final larval stage they overwinter. Insectivores, birds and spiders are all natural enemies of Chloromyia formosa. | | |
| | ... yellowy-orange in colour. Their sparse hair and long dark bristles are very striking. The head bears large compound eyes which are often red. Many species have patterned wings. Lauxaniid fly larvae live in rotting leaves and are also often found in birds' nests. | | |
| | ...g fruit, excrement and sweat and can fly well and fast. They can be watched in their flights for hours. Male specimens of two-tailed pasha guard their territory and fend off competitors from the same species. Occasionally, they even scare away small birds. Two generations of two-tailed pasha are active from May to June and from August to September. | | |
| | ...on small trees and a variety of other plants (Umbelliferae, Asteraceae) where they feed on pollen, nectar and young leaves. When they occur en masse, they can cause considerable damage to vegetation. Amonsgt their natural enemies are: insect-eaters, birds and spiders. | | |
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