How do gardeners define ‘invasive’? Implications for invasion science and environmental policy instruments on invasive species

Jones, Tomos Siôn; Culham, Alastair; Pickles, Brian John; David, John

doi:10.1016/j.envsci.2023.103614

Cited by 1 publication

(4 citation statements)

References 86 publications

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“…Both surveys were hosted by Jisc Online Surveys (www.onlinesurveys.ac.uk) and passed ethical review prior to implementation. Neither survey offered a comprehensive explanation of the term 'invasive' to participants because: 1) doing so might not match how gardeners use the term in their gardens, see Jones et al (2024); and 2) the purpose of the study was not to ask gardeners what ornamentals are having an impact in the wild (as invasive species sensu stricto) but rather those showing 'invasive behaviour' in gardens.…”

Section: Methodsmentioning

confidence: 99%

“…Gardeners have a crucial role in reducing the risks associated with invasive species, including at a practical level, for example through their choice of ornamentals to grow and steps to adopt while gardening to limit the spread of invasive species into the wild (Jones et al 2024). Gardeners also have a role in identifying ornamentals with invasive potential because they often have expert knowledge (Dehnen-Schmutz and Conroy 2018) of how different ornamentals are performing in their garden including those showing 'invasive behaviour'.…”

Section: Can Gardeners Identify Potentially Invasive Ornamentals?mentioning

confidence: 99%

“…For example, six different cultivars of native species were reported including Hedera helix 'Ivalace' [n = 1]. Secondly, the reports of native species suggest gardeners conflate the term 'invasive' with garden weeds and 'thugs' (Jones et al 2024). C. pendula is a good example of being native but widely considered a weed or 'thug' in gardens (e.g.…”

Section: Native Ornamentalsmentioning

confidence: 99%

“…This study suggests gardeners are very interested in the issue of invasive species and their role in identifying future invaders. The main limitation in surveys appears to be in the distinction between an invasive -or potentially invasive -species and garden weeds or 'thugs'; specifically in how gardeners understand the term 'invasive' (Jones et al 2024). This should therefore be explicitly explained before asking gardeners to report future invaders such as by providing a definition or multiple-choice question.…”

Section: Limitations and Improving The Approachmentioning

confidence: 99%

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Can gardeners identify ‘future invaders’?

Jones,

Culham,

Pickles

et al. 2024

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It is estimated that there are 30 million gardeners in Britain, who could play a crucial role in being the ‘first contact’ for reporting ornamental plants in gardens with invasive potential. Invasive species are one of the five drivers of the global nature crisis, many of which were originally introduced through ornamental horticulture. Ornamentals confined to gardens and those which have already naturalised, but are not yet shown to be invasive, represent a ‘pool’ of species with invasive potential – ‘future invaders’. An online survey asking gardeners to report ornamentals they had noticed invading or taking over their garden resulted in 251 different taxa being reported (including cultivars). The future invaders were prioritised with a simple yet structured scheme, looking at the domestic and global naturalised and invasive status of each taxon, including in the Global Register of Introduced and Invasive Species (GRIIS) and the Global Naturalized Alien Flora (GloNAF) databases. The structured scheme identified a shortlist of nine ornamentals of concern which should be prioritised for further analysis, such as a formal risk assessment. Identifying and preventing future invaders before they escape gardens is critical, to prevent future threats to nature. There is also a gap in the identification of potentially invasive ornamentals, which are not currently invasive, yet are beyond the scope of formal horizon scanning because they are naturalised. Here we explore whether surveying gardeners can be a suitable approach to prioritising future invaders while also being an opportunity to increase awareness of invasive species. This positive feedback loop between gardeners and invasion scientists could help reduce the risk of future invaders.

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Section: Methodsmentioning

confidence: 99%

Section: Can Gardeners Identify Potentially Invasive Ornamentals?mentioning

confidence: 99%

Section: Native Ornamentalsmentioning

confidence: 99%

Section: Limitations and Improving The Approachmentioning

confidence: 99%

See 2 more Smart Citations

Can gardeners identify ‘future invaders’?

Jones,

Culham,

Pickles

et al. 2024

Self Cite

View full text Add to dashboard Cite

show abstract

How do gardeners define ‘invasive’? Implications for invasion science and environmental policy instruments on invasive species

Cited by 1 publication

References 86 publications

Can gardeners identify ‘future invaders’?

Can gardeners identify ‘future invaders’?

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