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Titolo:
Predation by ground beetles and wolf spiders on herbivorous insects in a maize crop
Autore:
Lang, A; Filser, J; Henschel, JR;
Indirizzi:
GSFeissheim,gszentrum Umwelt & Gesundheit, Inst Bodenokol, D-85758 Oberschl GSF Forschungszentrum Umwelt & Gesundheit Oberschleissheim Germany D-85758 Desert Ecol Res Unit, Walvis Bay, Namibia Desert Ecol Res Unit Walvis Bay Namibia l Res Unit, Walvis Bay, Namibia
Titolo Testata:
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
fascicolo: 2, volume: 72, anno: 1999,
pagine: 189 - 199
SICI:
0167-8809(19990204)72:2<189:PBGBAW>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
RHOPALOSIPHUM-PADI HOM; POLYPHAGOUS PREDATORS; BIOLOGICAL-CONTROL; AGONUM-DORSALE; CEREAL APHIDS; FIELD; ARANEAE; MANIPULATION; POPULATIONS; CONSUMPTION;
Keywords:
Carabidae; Lycosidae; natural enemies; generalist predators; herbivores; agroecosystem;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Lang, A GSF-85758hungszentrum Umwelt & Gesundheit, Inst Bodenokol, Postfach 1129, D GSF Forschungszentrum Umwelt & Gesundheit Postfach 1129 Oberschleissheim Germany D-85758
Citazione:
A. Lang et al., "Predation by ground beetles and wolf spiders on herbivorous insects in a maize crop", AGR ECO ENV, 72(2), 1999, pp. 189-199

Abstract

Ground beetles (Carabidste) and wolf spiders (Lycosidae) are among the dominant epigeal arthropod predators in arable land. Their predation effect onpotential insect populations was examined in a maize field. The abundance and effects of ground beetles and wolf spiders were manipulated by removal or addition within field enclosures during two study periods, midseason andend-season. Both Carabidae and Lycosidae depressed populations of Cicadellidae and Thysanoptera, and a reduction of Aphididae was indicated in mid-season. The results indicated a size-dependent predation effect of Carabidae on Cicadellidae, the highest predation being on Cicadellidae with a body length above 1.1 mm. There was no strong evidence that the predation changed with the season. The present study confirmed that ground beetles and wolf spiders may play an important role in controlling herbivore populations in agricultural fields, and revealed their potential to limit Cicadellidae and Thysanoptera in maize field. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 00:16:28