Collembola


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Collembola

[kə′lem·bə·lə]
(invertebrate zoology)
The springtails, an order of primitive insects in the subclass Apterygota having six abdominal segments.

Collembola

 

(springtails), an order of primitively wingless insects. Many taxonomists treat the Collembola as a special class. Springtails range in length from 0.2 to 2 mm; rarely are they as long as 5 to 10 mm. There are soil forms of Collembola, such as Tullbergia, which have unpigmented skin and a homonomously dissected abdomen and lack eyes and spring. Such semi-soil types as Istoma have a weakly developed spring, while forms that inhabit the forest litter, for example, Tomocerus, have a strong spring and well-developed eyes. Forms such as Sminthurus, which live on plants, have a well-developed spring, eyes, a fused body, and tracheas.

Springtails are very common in woods, steppes, and meadows; hundreds of thousands of them are found per sq m. Most are saprophagans or feed on the mycelium of fungus; there are also predators and scavengers. Springtails play a large part in soil formation and in the cycle of materials in an ecosystem. Some live on the surface of water (fresh waters and sea), and there are numerous cave forms. Some species, for example, Sminthurus viridis, damage plants, particularly legumes. Fossil springtails have been traced to Devonian deposits.

REFERENCES

Opredelitel’ nasekomykh Evropeiskoi chasti SSSR, vol 1. Moscow-Leningrad, 1964.
Zhizn’ zhivotnykh, vol 3. Moscow, 1969.
Bei-Bienko, G. Ia. Obshchaia entomologiia, 2nd ed. Moscow, 1971.
Gisin, H. Collembolenfauna Europas. Geneva, 1960.
Stach, J. The Apterygotan Fauna of Poland in Relation to the World Fauna of This Group of Insects, vols. 1–9. Kraków, 1947–63.

M. S. GILIAROV

References in periodicals archive ?
The value of collembola from agricultural soils as food for a generalist predator.
La interaccion observada entre ambos parametros edaficos, tambien favorece el incremento de la poblacion de hongos y bacterias, organismos que sirven de alimento a un elevado numero de especies de Collembola (Guillen et.
Consumption of mycorrhizal and saprophytic fungi by Collembola in grassland soils.
Key words: Arisaema triphyllum, Jack-in-the-pulpit, spadix, osmophore, aroid, Araceae, Collembola, springtail.
Among the other genera of globular Collembola in Australia, Temeritas is distinct because of the relatively large size of species (nearly 2 mm long), their strongly annulated antennae that are longer than the body, and attractive colour patterns and bands (Fig.
59 Acaros Oribatidos 3 Collembola Onychiuridae 5 Enchitreydae 1 Collembola Hypogastruridae 1 Muestra Clasificacion taxonomica Margalef Shannon-Weaver MB0 Collembola-Isotomidae 0.
Among the microarthropods, the Collembola and Oribatida were the groups most affected by treatment; the abundance of these secondary consumers was greater in the bone meal and de-oiled cake treatments (Table 5).
In contrast, adults ate many Gastropoda and larval Diptera, with Collembola, Amphipoda, and other invertebrates present in lower numbers.
3 Dt 1 1 A Collembola Dt 10 5 A Coleoptera, Elateridae Pr 26 15 I Coleoptera, Scirtidae Dt 481 24 I Diptera, Chironomidae Dt 54 16 I Diptera, Culicidae, Culex sp Dt 32 12 I Diptera, Drosophilidae Dt 1 1 A Diptera, Muscidae Dt 2 1 I Diptera, Tipulidae Dt 7 5 I Diptera, Ceratopogonidae Dt 10 8 I Embioptera Dt 1 1 A Homoptera, Aphidae Hb 1 1 A Homoptera, Cicadellidae Hb 1 1 A Hymenoptera, Formicidae (*) Pr 3 1 A * Isoptera, Termitidae (*) Dt 11 4 A * Lepidoptera Hb 46 13 I Orthoptera, Gryllidae Hb 5 5 A Orthoptera, Tettigoniidae Hb 7 7 A+I TOTAL Hb 874
Collembola are arthropods that are found in abundance in the surface layers of soils in a variety of habitats, where they act as scavengers, feeding on decaying vegetation and soil fungi (Hopkin 1997).