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Titolo:
PREADULT COMPETITION BETWEEN DROSOPHILA-SUBOBSCURA AND DROSOPHILA-PSEUDOOBSCURA
Autore:
ORENGO DJ; PREVOSTI A;
Indirizzi:
UNIV BARCELONA,FAC BIOL,DEPT GENET,DIAGONAL 645 E-08071 BARCELONA SPAIN
Titolo Testata:
Zeitschrift fur zoologische Systematik und Evolutionsforschung
fascicolo: 1, volume: 32, anno: 1994,
pagine: 44 - 50
SICI:
0044-3808(1994)32:1<44:PCBDAD>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
COLONIZATION; AMERICA; POPULATIONS; INVERSION;
Keywords:
DEVELOPMENTAL RATE; DROSOPHILA PSEUDOOBSCURA; DROSOPHILA SUBOBSCURA; INTERSPECIFIC COMPETITION; VIABILITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
D.J. Orengo e A. Prevosti, "PREADULT COMPETITION BETWEEN DROSOPHILA-SUBOBSCURA AND DROSOPHILA-PSEUDOOBSCURA", Zeitschrift fur zoologische Systematik und Evolutionsforschung, 32(1), 1994, pp. 44-50

Abstract

The Palaearctic species Drosophila subobscura has recently colonized a large area of North America where it coexists with Drosophila pseudoobscura. The viability and developmental rate of these species were studied at 13 degrees C, 18 degrees C and 23 degrees C and at densities of 10, 50, 100 and 200 eggs per vial. The two species were differentlyaffected by density and temperature in the ranges studied. Both intra- and interspecific cultures showed that D. pseudoobscura was best adapted to 23 degrees C, where it was clearly the dominant species. On the other hand, at 18 degrees C and especially at 13 degrees C, althoughD. subobscura was less viable than D. pseudoobscura, its developmental time was shorter, which may give advantage to this species. Results reported here agree with the observed distribution of these species inNorth America.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/12/20 alle ore 21:50:27