- Title
- Thermal stress gradient causes increasingly negative effects towards the range limit of an invasive mussel
- Creator
- Ma, Kevin C K, Monsinjon, Jonathan R, Froneman, P William, McQuaid, Christopher D
- Subject
- To be catalogued
- Date
- 2023
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/479407
- Identifier
- vital:78299
- Identifier
- https://doi.org/10.1016/j.scitotenv.2022.161184
- Description
- Environmental filtering (EF), the abiotic exclusion of species, can have first order, direct effects with cascading consequences for population dynamics, especially at range edges where abiotic conditions are suboptimal. Abiotic stress gradients associated with EF may also drive indirect second order effects, including exacerbating the effects of competitors, disease, and parasites on marginal populations because of suboptimal physiological performance. We predicted a cascade of first and second order EF-associated effects on marginal populations of the invasive mussel Mytilus galloprovincialis, plus a third order effect of EF of increased epibiont load due to second order shell degradation by endoliths. Mussel populations on rocky shores were surveyed across 850 km of the south–southeast coast of South Africa, from the species' warm-edge range limit to sites in the centre of their distribution, to quantify second order (endolithic shell degradation) and third order (number of barnacle epibionts) EF-associated effects as a function of along-shore distance from the range edge. Inshore temperature data were interpolated from the literature.
- Format
- 16 pages, pdf
- Language
- English
- Relation
- Science of the Total Environment, Ma, K.C., Monsinjon, J.R., Froneman, P.W. and McQuaid, C.D., 2023. Thermal stress gradient causes increasingly negative effects towards the range limit of an invasive mussel. Science of the Total Environment, 865, p.161184, Science of the Total Environment volume 865 number 1 1 16 2023 1879-1026
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Elsevier Terms and Conditions Statement (https://www.elsevier.com/legal/elsevier-website-terms-and-conditions)
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- Visitors: 4
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Collections
McQuaid, Christopher D (Distinguished Professor)
Froneman, Pierre William (Prof)
RU DST/NRF SARChI for Marine Ecosystems and Resources
RU Department of Zoology and Entomology
SDG 14. Life Below Water
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