Interspecies mating between Bactrocera occiptalis (Bezzi) and bactrocera philippinensis Drew and Hancock (Diptera: Tephritidae)

Issue Date

10-2011

Abstract

The study conducted a series of mating experiments in the laboratory given the most natural conditions to examine inter-specific mating between Bactrocera occiptalis and Bactrocera philippinensis. During the first experiemental set-up 3 out of the 21 pairings demonstrated rare inter-specific matings. In the second experimental set-up and 3 out of 5 pairings demonstrated inter-specific matings, while in the third experimental set-up none of the 5 pairings demonstrated inter-specific mating. Despite this third result, the assortitive mating test were able to present evidence consistent with the hypothesis that Bactrocera occiptalis and B. philippinensis do mate inter-specifically. When both species are within the geographical range of one another, they commonly-mated inter-specifically at dusk. Both species do not exhibit any behavioural and physiological processes that prevent the members of the two species to mate and so reproductive isolation is not complete.

Source or Periodical Title

Philippine Entomologist

ISSN

0048-3753

Volume

25

Issue

2

Page

214

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

BACTROCERA; DIPTERA; COPULATION; MATING SYSTEMS; SEXUAL BEHAVIOUR; ANIMAL REPRODUCTION

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