File:Hydracarina.jpg
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Summary
| Description |
Eesti: Vesilestad (Hüdrakariin) on väga liigirikas väikeste ämblikulaadsete rühm, keda on jaotatud üle 50 sugukonda. Maailmas leidub üle 6000, Eestis üle 100 liigi. Eestis elavad vesilestad enamasti madalates seisuvetes. Mujal maailmas leidub neid sageli ka vooluvetes, allikates, põhjavees ja meres. Kõik nad pärinevad maismaal elanud eellastest. Elutsükkel koosneb parasiitsest vastsest, kahest nukutaolisest puhkestaadiumist (proto- ja tritonümf), röövtoidulisest deutonümfist ning röövtoidulisest valmikust. Pärisjalgu on neli paari, keha kerajas või ketasjas. Vastsed parasiteerivad putukatel, kelle valmikutega koos saavad nad kergesti levida teistesse veekogudesse.
English: Water mites (Hydracarina) are a very species-rich group of small arachnids, divided into more than 50 genera. There are over 6,000 species in the world, over 100 in Estonia. In Estonia, water mites mostly live in shallow stagnant waters. In other parts of the world, they are also often found in streams, springs, groundwater and the sea. They all come from land-dwelling ancestors. The life cycle consists of a parasitic larva, two pupal-like resting stages (proto- and tritonymph), a predatory deutonymph and a predatory adult. There are four pairs of true legs, the body is spherical or disk-shaped. Larvae parasitize insects, whose larvae they can easily spread to other bodies of water.
This specimen was found in a city pond in the city of Rakvere in Estonia |
| Date | |
| Source | Own work |
| Author | Janek Lass |
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This file was uploaded as part of Wiki Science Competition 2023. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:23, 19 November 2023 | | 5,172 × 3,444 (8.44 MB) | Janeklass | Uploaded own work with UploadWizard |
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