Reproductive parasitism: male and female responses to conspecific and heterospecific intrusions at spawning in a mouth-brooding cichlid Ophthalmotilapia ventralis

Häsler, Marcel; Lindeyer, Charlotte M; Taborsky, Michael (2009). Reproductive parasitism: male and female responses to conspecific and heterospecific intrusions at spawning in a mouth-brooding cichlid Ophthalmotilapia ventralis. Journal of fish biology, 75(7), pp. 1845-1856. Oxford: Blackwell 10.1111/j.1095-8649.2009.02442.x

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A rare form of alternative reproductive behaviour without simultaneous parasitic spawning was observed in Ophthalmotilapia ventralis, a lekking mouth-brooding cichlid from Lake Tanganyika. Floater males attempted to sneak opportunistically into the territory to actively court the female, while the owner (bourgeois male) defended the territory against other potential intruders. Floater males had more body fat than territory owners and generally higher condition factors. In field experiments, the response of bourgeois males and courted females was tested towards floaters and egg predators (a catfish Synodontis multipunctatus) present in the territories. Territory owners responded aggressively particularly to floaters, and female responsiveness to bourgeois male courtship tended to decline when floaters were present. The potential influence of reproductive parasitism on sexual selection in mouth-brooding cichlids is discussed.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Aquatic Ecology
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Behavioural Ecology

UniBE Contributor:

Häsler, Marcel and Taborsky, Michael

Subjects:

500 Science > 570 Life sciences; biology

ISSN:

0022-1112

Publisher:

Blackwell

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 15:21

Last Modified:

01 Apr 2014 14:27

Publisher DOI:

10.1111/j.1095-8649.2009.02442.x

Web of Science ID:

000272441000022

Uncontrolled Keywords:

alternative reproductive tactics; lekking; maternal mouthbrooders; multiple mating; sexual selection; sneaking

URI:

https://boris.unibe.ch/id/eprint/36735 (FactScience: 205985)

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