- Title
- Mating preferences of two species of Eccritotarsus (Hemiptera: Miridae)
- Creator
- Mnuguni, Sandiso
- Subject
- To be catalogued
- Date
- 2019
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/417486
- Identifier
- vital:71457
- Identifier
- xlink:href="https://hdl.handle.net/10520/ejc-cristal-v10-n1-a7"
- Description
- Eccritotarsus spp. are biological control agents that have been sourced from Brazil and Peru to control water hyacinth in South Africa. These agents have been released in over 30 sites and were thought to be the same species. The sequencing of mitochondrial DNA and interbreeding experiments have since confirmed the cryptic species to be separate species. The Brazilian population remains E. catarinensis while the Peruvian population is now E. eichhorniae. This paper assessed the mating behaviour of both species, to investigate behavioural traits that have resulted in reproductive isolation, which could have led to speciation. Mating choices in a form of no-choice, bi-choice and multi-choice tests were conducted within and between species in a 3:1, 2:1 and 1:1 sex ratio. The E. eichhorniae pair had more single and multiple copula incidences, higher average total copula duration and higher copula latency while the E.catarinensis♀×E.eichhorniae♂ pair had less single and multiple copula incidences, lower average total copula duration and lower copula latency. When the E.eichhorniae♀ and E.catarinensis♂ were given their respective choices, they only mated with conspecifics. However, when E.eichhorniae♀ are crossed with E.catarinensis♂ they do not produce offspring. These results suggest that interbreeding will be limited in South Africa.
- Format
- computer, online resource, application/pdf, 1 online resource (13 pages), pdf
- Publisher
- Taylor and Francis Online
- Language
- English
- Relation
- Biocontrol Science and Technology, Mnguni, S., 2019. Mating preferences of two species of Eccritotarsus (Hemiptera: Miridae). Biocontrol Science and Technology, 29(12), pp.1146-1158, Biocontrol Science and Technology volume 29 number 12 p. 1146 2019 1360-0478
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Taylor and Francis Online Terms and Conditions Statement (https://www.tandfonline.com/terms-and-conditions)
- Rights
- Closed Access
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RU DST/NRF SARChI for Insects in Sustainable Agricultural Ecosystems
RU Department of Zoology and Entomology
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | Mating preferences of two species of Eccritotarsus.pdf | 1 MB | Adobe Acrobat PDF | View Details Download |