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Last edited 17 Jun 2021
Invasive non-native species
Trees in Hard Landscapes, A Guide for Delivery, published by the Trees and Design Action Group in September 2014, defines invasive non-native species (INNS) as: ‘…a non-native animal or plant that has the ability to spread causing damage to the environment, the economy, our health and the way we live.’
Water for life and livelihoods, River basin management plans, Glossary, Published by the Environment Agency in 2016, states: ‘Many species of plants and animals have been introduced to this country. Several of these non-native species are invasive and have been causing serious problems to the aquatic and riverine ecology and environment. Problems include detrimental effects on native species, deoxygenation of water causing fish mortalities, blocking of rivers and drainage channels, predation and competition with native species, and, in some cases, pose health risks to the public or livestock.’
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