- Title
- Sacrificial males the potential role of copulation and predation in contributing to copepod sex-skewed ratios
- Creator
- Wasserman, Ryan J, Weston, Mark, Weyl, Olaf, L F, Froneman, P William, Welch, Rebecca J, Vink, Tim J F, Dalu, Tatenda
- Subject
- To be catalogued
- Date
- 2018
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/467233
- Identifier
- vital:76843
- Identifier
- https://doi.org/10.1111/oik.04832
- Description
- Predation is thought to play a selective role in the emergence of behavioural traits in prey. Differences in behaviour between prey demographics may, therefore, be driven by predation with select components of the population being less vulnerable to predators. While under controlled conditions prey demography has been shown to have consequences for predation success, investigations linking these implications to natural prey population demographics are scarce. Here we assess predator–prey dynamics between notonectid predators (backswimmers) and Lovenula raynerae (Copepoda), key faunal groups in temperate ephemeral pond ecosystems. Using a combination of field and experimental approaches we test for the development and mechanism of predation‐induced sex‐skewed ratios. A natural population of L. raynerae was tracked over time in relation to their predator (notonectid) and prey (Cladocera) numbers. In the laboratory, L. raynerae sex ratios were also assessed over time but in the absence of predation pressure.
- Format
- 9 pages, pdf
- Language
- English
- Relation
- Oikos, Wasserman, R.J., Weston, M., Weyl, O.L., Froneman, P.W., Welch, R.J., Vink, T.J. and Dalu, T., 2018. Sacrificial males: the potential role of copulation and predation in contributing to copepod sex‐skewed ratios. Oikos, 127(7), pp.970-980, Oikos volume 127 number 7 970 980 2018 1600-0706
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Nordic Society Statement (https://www.oikosjournal.org/about-journal/journal-information)
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- Visitors: 26
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Collections
Froneman, Pierre William (Prof)
RU South African Institute for Aquatic Biodiversity (SAIAB)
SDG 14. Life Below Water
RU Department of Zoology and Entomology
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details | SOURCE1 | Sacrificial males.pdf | 676 KB | Adobe Acrobat PDF | View Details |