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Spatial and temporal pattern of colonization of Nabidae (Heteroptera) in alfalfa (Medicago sativa) by S. Roth is a Agricultural and Biological Sciences article available to read on EtoBox.

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**Abstract:** Six species of Nabidae (Heteroptera) were collected by standardized sweep net sampling in alfalfa fields in Thuringia, Germany, from 1993 to 1995: __Nabis pseudoferus__, __N. ferus__, __N. brevis__, __N. major__, __Nabicula flavomarginata__ and __Aptus mirmicoides__. Colonization of a newly cultivated field was studied over a 3‐year period. The density of all the studied nabid species was low (less than five individuals per 100 sweeps) and not related to time since colonization started, or to the distance from the margin of the field. Macropterous species were able to colonize the whole field within one season. The density of one macropterous species, __N. pseudoferus__, varied between the years of study and was mainly affected by the harvest regime. The brachypterous species reached the margin within one season but for density it took three seasons to reach satiated values also in the centre of the field. The abundance of the brachypterous __N. brevis__ was significantly different both between years and sampling sites. This indicates the importance of the surroundings on the succession of this species. __Nabis major__, a fully winged species, showed a migration patte

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Author

S. Roth

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Verlag Paul Parey; Wiley (ISSN 0931-2048)

Published

2003

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)