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Does public awareness about invasive plants pays off? An analysis of knowledge and perceptions of environmentally aware citizens in Portugal

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Abstract

Biodiversity is severely declining worldwide and one of its main threats is invasion by exotic species. Successful management of these species requires citizens to be aware and engaged to prevent new introductions and support control interventions. We used questionnaires to investigate the knowledge and perceptions of Portuguese citizens aware of environmental issues, regarding invasive alien plants (IAPs). The influence of formal training in environmental areas vs. informal education about IAPs on the knowledge and perceptions of respondents was analysed. The results (735 responses) showed that environmentally conscious citizens have a great knowledge and awareness of IAPs (and biodiversity). While most respondents realize that IAPs negatively alter the landscape and cause negative impacts, some recognize that they can also have positive impacts and benefit the landscape. Formal training in environmental areas influences perception and increases knowledge about IAPs. In general, the opinion of whether a species should be removed or not was greatly influenced by the recognition of its invasive status, and less so by whether respondents liked or considered the species beautiful, suggesting that if citizens are informed about the invasive status of a species they are more willing to support its removal. More surprisingly, our results suggest that knowing the “Invasive Plants in Portugal” (Invasoras.pt) project, used as a proxy for higher awareness/informal education, increases knowledge and alters perceptions. Besides increasing understanding of IAPs' knowledge and perceptions among citizens, our work show that investing in public awareness projects pays off and can be focused on improving the planning of IAPs management strategies.

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References

  • Almeida JD, Freitas H (2000) A Flora Exótica e Invasora de Portugal. Portugaliae Acta Biologica 19:159–176

    Google Scholar 

  • Almeida JD, Freitas H (2012) Exotic flora of continental Portugal – a new assessment. Bocconea 24:231–237

    Google Scholar 

  • Bednar-Friedl B, Buijs A, Dobrovodskà M, Dumortier M, Eberhard K, Fischer A, Geamana N, Grunberger S, Langers F, Mauz I, Musceleanu O, Trátrai I, Young J (2009) Public perceptions of biodiversity change – results from a (pilot) survey in 8 European countries, in: A Long-Term Biodiversity, Ecosystem and Awareness Research Network, Project nº GOCE-CT-2003-505298, AlterNet, pp. 47

  • Botanical Garden of the University of Coimbra (2013) Azevinho: há séculos a ornamentar o Natal! Diário de Coimbra, 13 December, pp 9

  • Bremner A, Park K (2007) Public attitudes to the management of invasive non-native species in Scotland. Biol Conserv 139:306–314. DOI:https://doi.org/10.1016/j.biocon.2007.07.005

    Article  Google Scholar 

  • Bravo-Vargas V, García RA, Pizarro JC, Pauchard A (2019) Do people care about pine invasions? Visitor perceptions and willingness to pay for pine control in a protected area? J Environ Manage 229:57–66

    Article  Google Scholar 

  • Castro S, Loureiro J (2014) Um pequeno grande detalhe faz a diferença: como se reproduzem as azedas? Guest article. [online]. http://invasoras.pt/artigo-convidado-como-se-reproduzem-azedas/. Acessed 14 July 2017

  • Cole E, Keller RP, Garbach K (2019) Risk of invasive species spread by recreational boaters remains high despite widespread adoption of conservation behaviors. J Environ Manage 229:112–119

    Article  Google Scholar 

  • Crowley SL, Hinchliffe S, McDonald RA (2017) Invasive species management will benefit from social impact assessment. J Appl Ecol 54:351–357. DOI:https://doi.org/10.1111/1365-2664.12817

    Article  Google Scholar 

  • Dickie IA, Bennet BM, Burrows LE, Nuñez MA, Peltzer DA, Porté A, Richardson DM, Rejmánek M, Rundel PW, Van Wilgen BW (2014) Conflicting values: ecosystem services and invasive tree management. Biol Invasions 16:705–719. DOI https://doi.org/10.1007/s10530-013-0609-6

    Article  Google Scholar 

  • European Regulation No 1143/2014 of the European Parliament and of the Council of 22 October 2014 on the prevention and management of the introduction and spread of invasive alien species, in: Official Journal of the European Union 2014 - L 317, 35–55

  • Foxcroft LC, Richardson DM, Pyšek P, Genovesi P (2013) Plant invasions in protected areas: outlining the issues and creating the links. In: Foxcroft LC, Pyšek P, Richardson DM, Genovesi P (eds) Plant Invasions in protected areas: patterns, problems and challenges. Springer, Dordrecht, pp 3–18. DOI https://doi.org/10.1007/978-94-007-7750-7

    Chapter  Google Scholar 

  • Fricker R (2008) Sampling methods for web and e-mail surveys, in: Fielding N, Lee RM & Blank G. The SAGE handbook of online research methods. SAGE Publications Ltd, pp. 195–216. DOI: https://doi.org/10.4135/9780857020055

    Book  Google Scholar 

  • GRIIS (2017) Global register of introduced and invasive species. [online]. http://www.griis.org/search3.php. Acessed 25 July 2017

  • Grupo Marktest (2017) 5,9 milhões de utilizadores de Internet em Portugal-5.9 million Internet users in Portugal. [online]. http://www.marktest.com/wap/a/n/id~22ba.aspx. Accessed 17 April 2018

  • Hulme PE, Pyšek P, Nentwig W, Vilà M (2009) Will Threat of Biological Invasions Unite the European Union? Science 324:40–41. DOI:https://doi.org/10.1126/science.1171111

    Article  CAS  PubMed  Google Scholar 

  • IPBES (2019) Global assessment report on biodiversity and ecosystem services of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services. In: Brondizio ES, Settele J, Díaz S, Ngo HT (eds) IPBES Secretariat, Bonn, Germany

  • INE IP (2012) Censos 2011 resultados definitivos – Portugal. Instituto Nacional de Estatística, Lisbon, Portugal, p 559

    Google Scholar 

  • Kull CA, Shackleton CM, Cunningham PJ, Ducatillon C, Dufour-Dror JM, Esler KJ, Friday JB, Gouveia AC, Griffin AR, Marchante E, Midgley SJ, Pauchard A, Rangani H, Richardson DM, Rinaudo T, Tassin J, Urgenson LS, Maltitz GP, Zenni RD, Zylstra MJ (2011) Adoption, use and perception of Australian acacias around the world. Divers Distrib 17:822–836. https://doi.org/10.1111/j.1472-4642.2011.00783.x

    Article  Google Scholar 

  • Larson BMH, van der Wal R, Fischer A, Selge S (2017) Origin might matter; people matter, too. A response to the comment by Rejmanek and Simberloff 2016. Environ Conserv 44:100–101

    Article  Google Scholar 

  • Lindemann-Matthies P (2016) Beasts or beauties? Laypersons’ perception of invasive alien plant species in Switzerland and attitudes towards their management. NeoBiota 29:15–33. DOI:https://doi.org/10.3897/neobiota.29.5786

    Article  Google Scholar 

  • Lorenzo P, González L, Reigosa MJ (2010) The genus Acacia as invader: the characteristic case of Acacia dealbata Link in Europe. Ann For Sci 67:1–11. DOI:https://doi.org/10.1051/forest/2009082

    Article  Google Scholar 

  • Lousitânea (2017) Programas de Educação Ambiental. Available at: http://lousitanea.org/programas-e-actividades/programas-de-educacao-ambiental. [Acessed 7 August 2017]

  • Mack RN (2001) Motivations and consequences of the human dispersal of plants. In: McNeely JA (ed) The Great Reshuffling: Human Dimensions of Invasive Alien Species. IUCN, Gland, Switzerland and Cambridge, United Kingdom, pp 23–34

    Google Scholar 

  • Marchante E, Marchante H (2016) Engaging society to fight invasive alien plants in Portugal - one of the main threats to biodiversity. In: Castro P, Azeiteiro UM, Bacelar-Nicolau P, Leal Filho W, Azul AM (eds) Biodiversity and education for sustainable development. Springer, Berlin, pp 107–122. https://doi.org/10.1007/978-3-319-32318-3$48

  • Marchante H, Morais M, Freitas H, Marchante E (2014) Guia Prático para a Identificação de Plantas Invasoras em Portugal. Imprensa da Universidade de Coimbra, Coimbra, p 207

    Book  Google Scholar 

  • Marchante H, Morais MC, Gamela A, Marchante E (2017) Using a WebMapping platform to engage volunteers to collect data on invasive plants distribution. T GIS 21:238–252. DOI:https://doi.org/10.1111/tgis.12198

    Article  Google Scholar 

  • Matos M (2016) On controlling invasive species: how to tackle conservation, ethics and communication to the general public. Alfred Toepfer Natural Heritage Scholarship 2014. Study Visit Report, Parque Regional del Sureste, Spain

  • Meijaard E (2014) Conservation: focus on implementation. Nature 516:37

    Article  CAS  Google Scholar 

  • Meyerson LA, Mooney HA (2007) Invasive alien species in an era of globalization. Front Ecol Environ 5:199–208. DOI:https://doi.org/10.1890/1540-9295(2007)5[199:IASIAE]2.0.CO;2

    Article  Google Scholar 

  • Ministério do Ambiente (2019) Decree-Law n° 92/2019 July 10th. In: Diário da República —1ª Serie. 130: 3428–3442

  • Nikodinoska N, Foxcroft LC, Rouget M, Paletto A, Notaro S (2014) Tourists’ perceptions and willingness to pay for the control of Opuntia stricta invasion in protected areas: A case study from South Africa. Koedoe 56:1–8. DOI:https://doi.org/10.4102/koedoe.v56i1.1214

    Article  Google Scholar 

  • Novoa A, Kaplan H, Wilson JRU, Richardson DM (2016) Resolving a prickly situation: Involving stakeholders in invasive cactus management in South Africa. Environmental Management 57:998–1008

    Article  Google Scholar 

  • Novoa A, Dehnen-Schmutz K, Fried J, Vimercati G (2017) Does public awareness increase support for invasive species management? Promising evidence across taxa and landscape types. Biol Invasions 19:3691–3705

    Article  Google Scholar 

  • Olszanska A, Wojciech S, Najberek K (2016) To kill or not to kill—Practitioners’ opinions on invasive alien species management as a step towards enhancing control of Biol Invasions. Environ Sci Policy 58:107–116. DOI:https://doi.org/10.1016/j.envsci.2016.01.008

    Article  Google Scholar 

  • Passos I, Marchante H, Pinho R, Marchante E (2017) What we don't seed: the role of long-lived seed banks as hidden legacies of invasive plants. Plant Ecol 218:1313–1324. DOI:https://doi.org/10.1007/s11258-017-0770-6

    Article  Google Scholar 

  • Potgieter L, Gaertner M, O’Farrell PJ, Richardson DM (2019) Perceptions of impact: invasive alien plants in the urban environment. J Environ Manage 229:76–87

    Article  Google Scholar 

  • Reaser JK (2001) Invasive alien species prevention and control: the art and science of managing people. In: McNeely JA (ed) The Great Reshuffling: Human Dimensions of Invasive Alien Species. IUCN, Gland, pp 89–104

    Google Scholar 

  • Reis CS, Marchante H, Freitas H, Marchante E (2013) Public Perception of Invasive Plant Species: Assessing the impact of workshop activities to promote young students’ awareness. Int J Sci Educ 35:670–712. DOI:https://doi.org/10.1080/09500693.2011.610379

    Article  Google Scholar 

  • Selge S, Fischer A, Van der Wal R (2011) Public and professional views on invasive non-native species – A qualitative social scientific investigation. Biol Conserv 144:3089–3097. DOI:https://doi.org/10.1016/j.biocon.2011.09.014

    Article  Google Scholar 

  • Shackleton RT, Adriaens T, Brundu G, Dehnen-Schmutz K, Estevez R, Fried J, Larson BMH, Lui S, Marchante E, Marchante H, Moshobane M, Novoa A, Reed M, Richardson DM (2019a) Stakeholder engagement in the study and management of invasive alien species: a review. J Environ Manag 229:88–101. https://doi.org/10.1016/j.jenvman.2018.04.044

    Article  Google Scholar 

  • Shackleton RT, Bennet B, Crowley S, Dehnen-Schmutz K, Estévez R, Fisher A, Kueffer C, Kull CA, Larson BHL, Marchante E, Novoa A, Potgieter L, Richardson DM, Shackleton CM, Vaas J, Vaz AS (2019b) Explaining people’s perceptions of invasive alien species: a conceptual framework. J Environ Manag 229:10–26

    Article  Google Scholar 

  • Shackleton CM, Shackleton RT (2016) Knowledge, perceptions and willingness to control designated invasive tree species in urban household gardens in South Africa. Biol Invasions 18:1599–1609. https://doi.org/10.1007/s10530-016-1104-7

    Article  Google Scholar 

  • Simberloff D, Martin J-L, Genovesi P, Maris V, Wardle DA, Aronson J, Courchamp F, Galil B, García-Berthou E, Pascal M, Pyšek P, Sousa R, Tabacchi E, Vilà M (2013) Impacts of biological invasions: what's what and the way forward. Trends Ecol Evol 28:58–66. DOI:https://doi.org/10.1016/j.tree.2012.07.013

    Article  PubMed  Google Scholar 

  • Simões C (2015) A degradação da Paisagem e a sua Perceção após Invasão pela Espécie Acacia dealbata Link: O Caso da Região do Alto Ceira. Master Dissertation in Gestão do Território. Specialty of Recursos Naturais e Ambiente. Faculdade de Ciências Sociais e Humanas, Nova University, Lisbon, pp. 220

  • Veitch CR, Clout MN (2001) Human dimensions in the management of invasive species in New Zealand. In: McNeely JA (ed) The Great Reshuffling: Human dimensions of invasive alien species. IUCN, Gland, Switzerland and Cambridge, United Kingdom, pp 63–71

    Google Scholar 

  • Villatoro FJ, Naughton-Treves L, Sepulveda M, Stowhas P, Mardones F, Silva-Rodríguez EA (2019) When free-ranging dogs threaten wildlife: Public attitudes toward management strategies in Southern Chile. J Environ Manage 229:67–75

    Article  Google Scholar 

  • Wittenberg R, Cock MJW (2001) Invasive alien species: a toolkit of best prevention and management practices. Wallingford, Oxon, UK: CAB International on behalf of the Global Invasive Species Programme (GISP), pp 228

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Acknowledgments

The authors thank Luiz Alves and Vitor Carvalho for the initial discussions about the structure of the questionnaire; and Anibal Pauchard, Ross Shackleton and David Richardson, who contributed to improving an earlier version of the article. Paula Casaleiro is recognized for helping with statistical analysis. All respondents to the questionnaires are sincerely acknowledged. This research has not received any specific grants from public, commercial or nonprofit funding agencies. The authors also thank the reviewer for in-depth review of the manuscript and for valuable comments and suggestions.

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Correspondence to Elizabete Marchante.

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Cordeiro, B., Marchante, H., Castro, P. et al. Does public awareness about invasive plants pays off? An analysis of knowledge and perceptions of environmentally aware citizens in Portugal. Biol Invasions 22, 2267–2281 (2020). https://doi.org/10.1007/s10530-020-02247-z

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