Implication of microplastics on soil faunal communities — identifying gaps of knowledge
- 5 September 2022
- journal article
- review article
- Published by Portland Press Ltd. in Emerging Topics in Life Sciences
- Vol. 6 (4), 403-409
- https://doi.org/10.1042/etls20220023
Abstract
There is mounting evidence that plastic and microplastic contamination of soils can affect physico-chemical processes and soil fauna, as has been excellently summarised in many recently published meta-analyses and systematic reviews elsewhere. It has become clear that impacts are highly context dependent on, e.g. polymer type, shape, dose and the soil itself. Most published studies are based on experimental approaches using (semi-)controlled laboratory conditions. They typically focus on one or several representative animal species and their behaviour and/or physiological response — for example, earthworms, but rarely on whole communities of animals. Nevertheless, soil animals are rarely found in isolation and form part of intricate foodwebs. Soil faunal biodiversity is complex, and species diversity and interactions within the soil are very challenging to unravel, which may explain why there is still a dearth of information on this. Research needs to focus on soil animals from a holistic viewpoint, moving away from studies on animals in isolation and consider different trophic levels including their interactions. Furthermore, as evidence obtained from laboratory studies is complemented by relatively few studies done in field conditions, more research is needed to fully understand the mechanisms by which plastic pollution affects soil animals under realistic field conditions. However, field-based studies are typically more challenging logistically, requiring relatively large research teams, ideally of an interdisciplinary nature to maintain long-term field experiments. Lastly, with more alternative, (bio)degradable and/or compostable plastics being developed and used, their effects on soil animals will need to be further researched.Keywords
This publication has 72 references indexed in Scilit:
- Linking soils to ecosystem services — A global reviewGeoderma, 2016
- Belowground biodiversity and ecosystem functioningNature, 2014
- A review of earthworm impact on soil function and ecosystem servicesEuropean Journal of Soil Science, 2013
- Microplastic in Terrestrial Ecosystems and the Soil?Environmental Science & Technology, 2012
- Accumulation of Microplastic on Shorelines Woldwide: Sources and SinksEnvironmental Science & Technology, 2011
- Using earthworms as model organisms in the laboratory: Recommendations for experimental implementationsPedobiologia, 2010
- PLastic Films for Agricultural ApplicationsJournal of Plastic Film & Sheeting, 2006
- Biodiversity and ecosystem function in soilFunctional Ecology, 2005
- Lost at Sea: Where Is All the Plastic?Science, 2004
- KEGG: Kyoto Encyclopedia of Genes and GenomesNucleic Acids Research, 2000