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Diverse effects of invasive ecosystem engineers on marine biodiversity and ecosystem functions : a global review and meta-analysis

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Blight_2017_GCB_Invasiveecosystem_AAM.pdf (1.945Mb)
Date
03/2018
Author
Guy-Haim, Tamar
Lyons, Devin A.
Kotta, Jonne
Ojaveer, Henn
Queirós, Ana M.
Chatzinikolaou, Eva
Arvanitidis, Christos
Como, Serena
Magni, Paolo
Blight, Andrew J.
Orav-Kotta, Helen
Somerfield, Paul J.
Crowe, Tasman P.
Rilov, Gil
Keywords
Alien
Biodiversity-ecosystem functioning
Biological diversity
Decomposition
Ecosystem engineers
Invasive
Nutrient flux
Primary production
Sedimentation
Systematic review
QH301 Biology
NDAS
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Abstract
Invasive ecosystem engineers (IEE) are potentially one of the most influential types of biological invaders. They are expected to have extensive ecological impacts by altering the physical-chemical structure of ecosystems, thereby changing the rules of existence for a broad range of resident biota. To test the generality of this expectation, we used a global systematic review and meta-analysis to examine IEE effects on the abundance of individual species and communities, biodiversity (using several indices) and ecosystem functions, focusing on marine and estuarine environments. We found that IEE had a significant effect (positive and negative) in most studies testing impacts on individual species, but the overall (cumulative) effect size was small and negative. Many individual studies showed strong IEE effects on community abundance and diversity, but the direction of effects was variable, leading to statistically non-significant overall effects in most categories. In contrast, there was a strong overall effect on most ecosystem functions we examined. IEE negatively affected metabolic functions and primary production, but positively affected nutrient flux, sedimentation and decomposition. We use the results to develop a conceptual model by highlighting pathways whereby IEE impact communities and ecosystem functions, and identify several sources of research bias in the IEE-related invasion literature. Only a few of the studies simultaneously quantified IEE effects on community/diversity and ecosystem functions. Therefore, understanding how IEE may alter biodiversity-function relationships should be a primary focus of future studies of invasion biology. Moreover, the clear effects of IEE on ecosystem functions detected in our study suggest that scientists and environmental managers ought to examine how the effects of IEE might be manifested in the services that marine ecosystems provide to humans.
Citation
Guy-Haim , T , Lyons , D A , Kotta , J , Ojaveer , H , Queirós , A M , Chatzinikolaou , E , Arvanitidis , C , Como , S , Magni , P , Blight , A J , Orav-Kotta , H , Somerfield , P J , Crowe , T P & Rilov , G 2018 , ' Diverse effects of invasive ecosystem engineers on marine biodiversity and ecosystem functions : a global review and meta-analysis ' , Global Change Biology , vol. 24 , no. 3 , pp. 906-924 . https://doi.org/10.1111/gcb.14007
Publication
Global Change Biology
Status
Peer reviewed
DOI
https://doi.org/10.1111/gcb.14007
ISSN
1365-2486
Type
Journal article
Rights
© 2017 John Wiley & Sons Ltd. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://doi.org/10.1111/gcb.14007
Description
This research was funded by the EU Seventh Framework Programme for research, technological development and demonstration (FP7/2007-2013) within the Ocean of Tomorrow call under Grant Agreement No.266445 for the project Vectors of Change in Oceans and Seas Marine Life (VECTORS). AMQ and PJS acknowledge support from the UK Natural Environment Research Council and Department for Environment, Food and Rural Affairs [grant number NE/L003279/1, Marine Ecosystems Research Programme]. HO and JK were partly funded by the Estonian Ministry of Education and Research (grant SF0180005s10) and the Estonian Research Council (IUT02-20).
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  • University of St Andrews Research
URL
http://onlinelibrary.wiley.com/doi/10.1111/gcb.14007/full#footer-support-info
URI
http://hdl.handle.net/10023/16775

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