Increasing temperatures increase the risk of reproductive failure in a near threatened alpine groundnesting bird, the Cape Rockjumper Chaetops frenatus:

Oswald, Krista N; Diener, Elizabeth F; Diener, John P; Cunningham, Susan J; Smit, Ben; Lee, Alan T K

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
Creator: Diener, Elizabeth F
Creator: Diener, John P
Creator: Cunningham, Susan J
Creator: Smit, Ben
Creator: Lee, Alan T K
Date Issued: 2020
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
Format: pdf
Language: English
Relation: Ibis
Relation: 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.
Relation: 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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Smit, Ben (Dr)

RU Department of Zoology and Entomology

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