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Photography with cameras
Nikon D3x, Nikon D300, Canon 50D
Image editing with Photoshop |
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Keyword: Air |
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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| Pollen | ...s of between 10 and 100 microns. They have one or more apertures, which lack the outer layer of the exine so that the intine can grow through into a pollen tube.
Pollen grains are usually spread singly (monads) but may also be released into the air in groups of two or four (dyads or tetrads). Pollenkitt is capable of holding pollen grains together in groups. This can also be done with sticky threads of sporopollenin, cellulose or protein. Each 4 pollen grains are formed simultaneously in polle...
...e: redness of the eyes and watery eyes, sneezing and a runny nose (allergic rhinitis or hay fever). In the countryside, pollen concentration is at its highest in the morning, in the city, in the evening. Consequently rural inhabitants are advised to air between seven pm and midnight and city dwellers, between six and eight am.
Pollen is used in food production. It tastes sweet and has a high content of proteins with enzymatic function, vitamin B and over 20 amino acids. Pollen is thought to aid...
...ellers, between six and eight am.
Pollen is used in food production. It tastes sweet and has a high content of proteins with enzymatic function, vitamin B and over 20 amino acids. Pollen is thought to aid in the treatment of digestive problems, hair loss, potentially fertility problems, diseases of the nervous system, as well as hay fever.
Due to its durability, pollen can provide an insight into environmental issues of the past. The origin of a given honey can be determined with the aid of... | | |
| ...ey have a slightly metallic sheen, are deep black in colour and shimmer slightly bronze when seen in light.
Adults have short, club-shaped antennae. Their mouthparts (maxillary palpi) are elongated, yellowish to reddish-brown in colour and hair-like (filiform) and may be mistaken for antennae. The maxillary palpi like the antennae often have dark ends. On the wing covers (elytra) are 10 stripes of fine, puncture-like points. These stripes, which are lengthwise and become furrow shaped ...
...gular posited series of points appear in the space between the rows from regular posited points. The legs of the beetle are yellowish, yellow-brown or rust-colored. The tarsi appear reddish brown to dark brown in colour.
The hind legs have long hairs that aid in swimming. The water scavenger beetle prefers to live in and on smaller bodies of waters with sufficient sunlight. They are often found (as adults or larvae) floating on the surface of salt water or brackish water (mixture of river an...
...n and on smaller bodies of waters with sufficient sunlight. They are often found (as adults or larvae) floating on the surface of salt water or brackish water (mixture of river and sea water). The adults eat rotten plant debris. They surface for air head first and trap air to breath under their wing covers (elytra) and "row" themselves along by alternating the hind legs, wiggling from side to side as they swim. Their eyesight is not very developed. Therefore, it is possible for the beetles to land on? ref... | | |
| | | ...s almost completely covered by their wings. The larvae of Chaoborus crystallinus are transparent (glass rods larvae) and horizontally live in water. They breathe through their body surface. In the 7th abdominal segment, are hollow sacs filled with air which keep the larvae suspended. These sacs can be filled with air or water to allow the larvae to rise or fall as required. | | |
| | Robber flies | ...nosoma atra, Aneomochtherus flavicornis, Antipalus varipes, Antiphrisson trifarius, hornet robberfly (Asilus crabroniformis), Choerades femorata, Choerades fimbriata, Choerades fuliginosa, ginger robberfly (Choerades gilva), Choerades ignea, golden-haired robberfly (Choerades marginata), Choerades rufipes, Cyrtopogon lateralis, Didysmachus picipes, violet black-legged robberfly (Dioctria atricapilla), Dioctria bicincta and scarce red-legged robberfly (Dioctria cothurnata).
Robber flies are, on a...
...ich live in wood). The larval stage takes 1-2 years before the larvae pupate.
Adult robber flies ambush other insects in flight. For this purpose they perch and wait. . If an insect is flying in their vicinity, the robber fly flies up into the air, attacks and stings. | | |
| | Dune robberfly | | ...large brown spots. The legs are long, strong, and black.
Dune robberflies live in sandy places. They prey on other insects and are very good hunters. They often sit on the bare, hot sand waiting for their prey which they catch and sting in the air.
The dune robberfly is active from June to September. The females have a ring of spikes at the end of their ovipositors which they use to make a hollow in the sand to lay their eggs in. The larvae usually move deeper into the sand after hatch... | | |
| | ... scutellum is also light yellow. They have markings on the upper surface. The females have an ovipositor on the end of their bodies.
The adult flies have a life span of about 1 week and only feed on vegetables (phytophagous). Aside from the open air, they are mainly encountered in greenhouses. After hatching from pupae, the females start feeding immediately. They drill small holes in the top surface of plants’ leaves using their ovipositors and suck up liquid with their mouth parts. The da... | | |
| | ...f the body can be dull or shiny. The conical shaped antennae of these insects are striking and can have 6 - 9 segments depending on species. On the lower jaw and lower lip are palpi which can be longer than the antennae. Water scavenger beetles hold air under their wing covers (elytra). | | |
| | The females possess special glands to produce fibres which they use to build cocoons under water. Air is kept in these cocoons for the larvae to breathe. Water scavenger beetles feed on plants and rotting substances. Their larvae mostly live predatorily at the bottom of water bodies. Water scavenger beetles are very useful because they purify the wa... | | |
| | During the mating season, (which is from mid July toAugust), the males can be observed on "patrol" flights, looking for females. During these, they often stay in the air. They fight with rival conspecifics when entering their territory. Mating almost always begins near the ground and often ends at the top of trees or bushes near water. | | |
| | ... The head is completely separated from the chest and is therefore very flexible. Between the very large compound eyes are 3 simple eyes. The rear chest segments (mesothorax and metathorax) are strongly built. They can use their two nearly identical pairs of large wings independently in flight and can therefore abruptly change direction. They can hover at one point in the air and even fly backwards. Flight speeds of up to 50 km/h are not uncommon. The abdomen is very long and thin and has a stabilizing effect in flight. | | |
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