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Titolo:
Intermittent oviposition and remating in Ceraeochrysa cincta (Neuroptera :Chrysopidae)
Autore:
Lopez-Arroyo, JI; Tauber, CA; Tauber, MJ;
Indirizzi:
Cornell Univ, Dept Entomol, Ithaca, NY 14853 USA Cornell Univ Ithaca NY USA 14853 Univ, Dept Entomol, Ithaca, NY 14853 USA
Titolo Testata:
ANNALS OF THE ENTOMOLOGICAL SOCIETY OF AMERICA
fascicolo: 4, volume: 92, anno: 1999,
pagine: 587 - 593
SICI:
0013-8746(199907)92:4<587:IOARIC>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
REPEATED MATINGS; CRICKETS; COPULATE;
Keywords:
Ceraeochrysa cincta; lacewing; sperm depletion; spermatophore; fecundity; biological control;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Lopez-Arroyo, JI Cornell Univ, Dept Entomol, Comstock Hall, Ithaca, NY 14853 USA Cornell Univ Comstock Hall Ithaca NY USA 14853 14853 USA
Citazione:
J.I. Lopez-Arroyo et al., "Intermittent oviposition and remating in Ceraeochrysa cincta (Neuroptera :Chrysopidae)", ANN ENT S A, 92(4), 1999, pp. 587-593

Abstract

Ceraeochrysa cincta (Schneider) exhibited a cyclic pattern of reproductionthat appears distinct among the Chrysopidae: (1) Females that were continuously paired with males for 60 d produced an average of 711 eggs in approximate to 4 regular, conspicuous bouts of oviposition that persisted approximate to 9 d each. The end of each oviposition bout was marked by a drastic decline in oviposition, followed by mating and an interbout period of 1-3 d with no oviposition. (2) During mating, males transferred a visible spermatophore that remained at the tip of the female's abdomen for approximate to 1 d; after the external spermatophore disappeared, the interbout period terminated and oviposition resumed. (3) Male presence significantly influencedthe oviposition pattern. Females that were separated from males after 1 mating had only 1 oviposition bout of approximate to 11 d and laid relativelyfew eggs (mean = 203 eggs). Females, whose mates were removed and then returned at intervals of 8 d, remated and oviposited after each male reintroduction. (4) Interruptions in oviposition were characterized by depletion of sperm from the spermatheca, whereas resumption of oviposition was associated with remating and sperm replenishment. Our results indicate that C. cincta females require frequent, periodic remating to sustain fertile oviposition; it is highly probable that females in nature experience multiple matings(i.e., with different males). The above findings have direct implications for mass-rearing, field colonization, as well as conservation and manipulation of these predators for biological control.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 18:39:15