--- abstract: |- ABSTRACT—In Drosophila ananassae, female remating with respect to productivity and sperm displace-ment was studied by employing different mutant strains and a wild type strain. In all the experiments, the continuous confinement technique was used. The comparison of productivity between once-mated (control) and remated females reveals that the productivity of remated females is significantly higher than that of once-mated ones in all the crosses. The P2´ values (the proportion of second male progeny produced after remating) were calculated to test sperm displacement in each cross of remated females. In all the crosses, high P2´ values (0.91–0.94) were found which indicate sperm precedence of second male to mate suggest-ing the existence of sperm displacement in D. ananassae. Furthermore, female productivity is increased after remating in D. ananassae. altloc: [] chapter: ~ commentary: ~ commref: ~ confdates: ~ conference: ~ confloc: ~ contact_email: ~ creators_id: [] creators_name: - family: Singh given: Shree Ram honourific: '' lineage: '' date: 2001-03 date_type: published datestamp: 2001-12-01 department: ~ dir: disk0/00/00/19/48 edit_lock_since: ~ edit_lock_until: ~ edit_lock_user: ~ editors_id: [] editors_name: [] eprint_status: archive eprintid: 1948 fileinfo: /style/images/fileicons/application_pdf.png;/1948/3/Sperm_displacement_ZS.pdf full_text_status: public importid: ~ institution: ~ isbn: ~ ispublished: ~ issn: ~ item_issues_comment: [] item_issues_count: 0 item_issues_description: [] item_issues_id: [] item_issues_reported_by: [] item_issues_resolved_by: [] item_issues_status: [] item_issues_timestamp: [] item_issues_type: [] keywords: 'female remating, sperm precedence, sperm displacement, sperm competition, sexual selection, productivity, Drosophila ananssae' lastmod: 2011-03-11 08:54:50 latitude: ~ longitude: ~ metadata_visibility: show note: ~ number: ~ pagerange: ~ pubdom: FALSE publication: ~ publisher: ~ refereed: TRUE referencetext: | Barbadilla A, Quezada-diaz JE, Ruiz A, Santos M, Fontdevila A (1991)The evolutionary history of Drosophila buzzatii. 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