- Title
- Increasing temperatures increase the risk of reproductive failure in a near threatened alpine groundnesting bird, the Cape Rockjumper Chaetops frenatus:
- Creator
- Oswald, Krista N, Diener, Elizabeth F, Diener, John P, Cunningham, Susan J, Smit, Ben, Lee, Alan T K
- Date
- 2020
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/149324
- Identifier
- vital:38825
- Identifier
- https://0-doi.org.wam.seals.ac.za/10.1111/ibi.12846
- Description
- A major cause of reproductive failure in birds is nest predation. Predation risk depends on predator type, as predators vary in their ecology and sensory modalities (e.g. visual vs. olfactory). Snakes (generally olfactory predators) are a major nest predator for small birds, with predation strongly associated with higher temperatures. We investigated nest survival in a ground‐nesting alpine species, the Cape Rockjumper Chaetops frenatus , endemic to alpine fynbos in southwestern South Africa. We collected 3 years of nest data, testing whether nest survival was related to (1) habitat stage (early post‐fire vs. late post‐fire habitat, ≤ 3 and > 3 years since fire respectively), (2) nest concealment and (3) temperature. We found that nests had better survival at lower temperatures, with snake predation (our main source of predation) increasing in higher temperatures.
- Format
- 7 pages, pdf
- Language
- English
- Relation
- Ibis, Oswald, K.N., Diener, E.F., Diener, J.P., Cunningham, S.J., Smit, B. and Lee, A.T., 2020. Increasing temperatures increase the risk of reproductive failure in a near threatened alpine groundnesting bird, the Cape Rockjumper Chaetops frenatus. Ibis., Ibis volume number May 2020 1474-919X
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Wiley Library Online Terms of Use Statement (https://onlinelibrary.wiley.com/terms-and-conditions)
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Collections
Smit, Ben (Dr)
SDG 13. Climate Action
RU Department of Zoology and Entomology
SDG 15. Life On Land
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| View Details | SOURCE1 | Increasing temperatures increase the risk of reproductive failure in a near threatened alpine.pdf | 635 KB | Adobe Acrobat PDF | View Details |