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Photography with cameras
Nikon D3x, Nikon D300, Canon 50D
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Keyword: Trees |
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 |
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| ... can release hormones, which lower digests the beetle and thus forces it to change host. In this way alder are protected from excessive damage to their leaves. The alder leaf beetle then evades on other alder, willow, poplar, hazel, other fruit trees and herbs. These beetles often occur here in great numbers, which can kill younger trees and can limit growth in older trees. | | |
| The great capricorn beetle prefers to live in warm deciduous forests, parks or small river valleys with trees. It is found almost exclusively in sunny places with old, sick or dying oak trees, in which its larvae develop. However, it completely avoids dead wood. Occasionally, it is also found on hornbeam (Carpinus), chestnut (Castanea), locust bean plants (Ceratonia), ash (Fraxinus), walnut (Juglans), pears (Pyrus), black locust (Robinia...
...rnbeam (Carpinus), chestnut (Castanea), locust bean plants (Ceratonia), ash (Fraxinus), walnut (Juglans), pears (Pyrus), black locust (Robinia), willow (Salix) and elm (Ulmus). The great capricorn beetle feeds on tree sap expired from injured mature trees or tree fruits. | | |
| | | ...y occasionally kill other insects and suck dead other arthropods (insects, arachnids, crustaceans etc). After mating, the females lay their eggs on top of a leaf. The larvae overwinter - unlike those of other kinds of shield bugs - under the bark of trees, and their further development takes place on broad-leaved trees. | | |
| | The adult Birch Catkin Bug overwinter. After mating, the female lays its eggs on leaves. The larvae live on deciduous trees, where they are very sociable and may occur in large numbers. In summer, the larvae become adult bugs. In autumn, they go in search of protected places and are often found hiding in walls after the leaves have fallen from the trees.
They pose no problems when encountered in areas inhabited by humans and simply die there after a few days. | | |
| ...the shape of their genitals, their body size and the hair on the legs of the males.
The autumn spider can be encountered in a wide range of environments, at various altitudes. It prefers semi-open habitats such as forest edges, clearings, box, trees, lawns, gardens, hedgerows, bogs and swamps, where it can be found as a mature adult in herbal layers and shrub layers from August to October.
The autumn spider is diurnal and feeds on insects. It builds a relatively small orb-web which is o...
...attention of the female. When the female is ready, she takes position on a mating string at the rear of the web. After mating the male spider leaves.
The female autumn spider creates several white, round cocoons onthe branches or the bark of trees for the protection of 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 spide... | | |
| | ...rvae. The larvae are yellowish after hatching and resemble caterpillars. They have 8 small pairs of legs attached to the abdomen. Their antennae have 4 - 5 segments. The larvae of Tenthredo campestris feed on the leaves of various herbaceous plants, trees and shrubs. Their food of preference is ground-elder (Aegopodium podagraria). When disturbed, the larvae curl into a "S" and resemble small snakes. En masse these larvae can cause major damage to shrubs and trees. | | |
| | ...ey can transfer diseases. Some general examples of Brachycera are : Blow-flies, house flies and Muscidae.
The Drosophilidae, or fruit flies, of which about 3,000 species are known worldwide, can cause significant damage to orchards or individual trees. | | |
| | The green shield bug is mainly found in hedges and on the foliage of trees. Linden, alder, thistles and nettles are the preferred food source of the green shield bug.
The defence secretions of this bug can causeallergic reactions in humans. | | |
| | Bombus pascuorum | | ...of up to 22 mm, and the drones, up to 18 mm while the workers are considerably smaller. The Bombus pascuorum can be found in meadows and clover fields, but also in walls and buildings. It feeds on nectar and pollen, preferring the flowers of fruit trees, large-flowered hemp-nettle, motherwort, deadnettle and Centaurea. | | |
| | Vespinae living in colonies build nests in dark caves, trees, hedges or attics. A single state with a queen, workers and drones can comprise up to 7000 insects. Labour is organised - the Queen only lays eggs while the workers are responsible for nest building , nest cleaning, food procurement and feeding t... | | |
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