Effects of anthropogenic subsidy and glyphosate on macroinvertebrates in streams
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RESEARCH ARTICLE
Effects of anthropogenic subsidy and glyphosate on macroinvertebrates in streams Hongyong Xiang 1,2,3 & Yixin Zhang 4 & David Atkinson 3 & Raju Sekar 5 Received: 24 March 2019 / Accepted: 18 March 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Streams and surrounding terrestrial ecosystems are closely linked by numerous resource subsidies including anthropogenic subsidies which are increasingly entering streams due to intensive human activities. Also, streams are threatened by stressors such as glyphosate—the most widely used herbicide worldwide. However, the ecological consequences of anthropogenic subsidies and glyphosate on freshwaters are not fully understood. Here, we deployed leaf litter (Cinnamomum camphora) bags containing neither, either, or both treatments of anthropogenic carrion subsidy (chicken meat) and glyphosate (coated in agar) in four streams, which had different land use (i.e., forest, village, and suburban) in Huangshan, Anhui Province, China. We aimed to investigate the individual and combined effects of anthropogenic carrion subsidy and glyphosate on macroinvertebrates in streams and whether these effects differ with land use change. Macroinvertebrate communities significantly differed among streams: biodiversity index and total taxon richness were highest in village streams and lowest in suburban stream. Overall effects of carrion subsidy and glyphosate on macroinvertebrates were not significant. However, several taxa were affected in one or more streams by the individual or combined effects of carrion subsidy and glyphosate, indicating the importance of local community structure and physical habitats in driving the response of macroinvertebrates to carrion subsidy and glyphosate. Collectively, these results imply that the effects of carrion subsidy and glyphosate on macroinvertebrates are site-specific, and future studies should cover more streams and last longer time to better understand the ecological mechanisms driving such pattern. Keywords Land-water interaction . Herbicides . Anthropogenic disturbance . Benthic community . Land use Responsible editor: Philippe Garrigues Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11356-020-08505-w) contains supplementary material, which is available to authorized users. * Yixin Zhang [email protected] 1
Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan, China
2
Department of Health and Environmental Sciences, Xi’an Jiaotong-Liverpool University, Suzhou, China
3
Institute of Integrative Biology, University of Liverpool, Liverpool, UK
4
Research Center of Environmental Protection and Ecological Restoration Technology, Department of Landscape Architecture, Gold Mantis School of Architecture, Soochow University, Suzhou, Jiangsu, China
5
Department of Biological Sciences, Xi’an Jiaotong-Liverpool University, Suzhou, China
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