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Titolo:
Species composition and relative abundance of coccinellidae (Coleoptera) in
South Central Nebraska field crops
Autore:
Wright,
RJ; DeVries,
TA;
- Indirizzi:
- Univ Nebraska, S Cent Res & Extens Ctr, Dept Entomol, Clay Ctr, NE
68933 USA Univ Nebraska Clay Ctr NE USA 68933 Dept Entomol, Clay Ctr, NE 68933
USA
- Titolo Testata:
- JOURNAL OF THE KANSAS ENTOMOLOGICAL SOCIETY
fascicolo: 2, volume:
73, anno: 2000,
pagine: 103 - 111
- SICI:
- 0022-8567(200004)73:2<103:SCARAO>2.0.ZU;2-I
- Fonte:
- ISI
- Lingua:
- ENG
- Soggetto:
- GRAIN-SORGHUM;
SEPTEMPUNCTATA
COLEOPTERA; GREENBUGS
HOMOPTERA; APHIDIDAE;
DAKOTA;
PREDATORS;
ALFALFA;
MAIZE;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Agriculture,Biology & Environmental Sciences
- Citazioni:
- 24
- Recensione:
- Indirizzi per estratti:
- Indirizzo: Wright, RJ Univ Nebraska, S Cent Res & Extens Ctr, Dept
Entomol, Clay Ctr,NE 68933 USA Univ Nebraska Clay Ctr NE USA 68933 ol, Clay
Ctr, NE 68933 USA
-
-
Abstract
Species composition and relative abundance of adult
Coccinellidae were monitored in field corn (Zea mays L.), grain sorghum (Sorghum
bicolor L. Moench.), winter wheat (Triticum aestivum L.) and alfalfa (Medicago
sativa L.) in south central Nebraska during 1992-1995. Two native coccinellids,
Hippodamia convergens Guerin-Meneville and Coleomegilla maculata (DeGeer), were
the most common species during all years and in all crops, comprising >77%
ofthe individuals observed. Averaged over all years, H. convergens was the most
common species in alfalfa and sorghum, and C. maculata was the most common
species in corn and wheat. Other species collected included Coccinella
septempunctata (L.), Hippodamia parenthesis (Say), Hippodamia tredecimpunctata
tibialis (Say) and Cycloneda munda (Say). Although there was variation in
species composition by crop and year there were no significant differences in
species diversity as measured by the Berger-Parker species dominance index (d)
and the Shannon-Weaver function (H). This information will help target future
studies in conservation, augmentation and classical biologicalcontrol involving
coccinellids.
CIB Centro Inter-Bibliotecario, Università di Bologna, Catalogo delle
riviste ed altri periodici
Documento generato il 01/05/08 alle ore 14:15:28