Collembola


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Related to Collembola: springtail

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

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Recoleccion Familia Especie/morfoespecie I II Oribatida Hemileiidae Hemileius initialis 8,7 4,4 Galumnidae Erogalumna zeucta 4,4 -- Oppiidae Brachioppia -- 7,3 cajamarcensis Oppiella nova -- 11,6 Oribatulidae Oribatula -- 2,9 (Zygoribatula) lata Scheloribatidae Scheloribates 82,6 72,5 praeincisus acuticlava Tectocephaeidae Tectocepheus velatus 4,4 1,6 Collembola Hypogastruridae Morfo sp.
(2011), the Collembola group is able to generate responses to the use of pig manure, with higher density in the dose of 200[m.sup.3] [ha.sup.-1], and in higher doses its overall density is reduced.
Sampling period EP EA WP WA Total February 2007 604 532 430 496 2062 July 2007 79 67 75 54 275 October 2007 644 629 471 475 2219 February 2008 444 338 374 395 1551 Total excluding outliers 1771 1566 1350 1420 6107 Total including outliers 6058 1701 1995 1706 11460 (a) Excluding Collembola and known introduced species.
Perrando (2008), ao estudar a fauna epiedafica em plantios de Acacia mearnsii, no Rio Grande do Sul, verificou alta correlacao (>0,7) entre os grupos Hymenoptera e Orthoptera com a temperatura media do periodo, enquanto Collembola apresentou correlacao somente com a precipitacao.
In contrast, adults ate many Gastropoda and larval Diptera, with Collembola, Amphipoda, and other invertebrates present in lower numbers.
Araneae, Collembola, and Lepidoptera all showed higher morphospecies richness on the ground than associated with trees (Fig.
In the rainy season, this analysis shows the predominance of Formicidae, Isoptera, Homoptera and Orthoptera in the GRF macrofauna community; of Acari, Collembola,
From the results, it was seen that individuals belonging to the orders Acari, Collembola and Diptera and to family Formicidae were the most frequent in each of the different periods of succession (Table 2 and 3), with reductions in the number of individuals from the orders Acari and Diptera during the rainy/dry transition and dry period, and Collembola during the rainy/dry transition (Table 3).