Popular knowledge and perceptions of invasive exotic species in Acre, Brazil





biological invasions; non-native species; civil society; environmental policies; Southwestern Brazilian Amazon


Invasive exotic species (IES) have the potential to promote biological invasions (BI), impacting environmental, economic, and social dimensions, and have increased in the last centuries, due to human activities. In order to efficiently prevent and manage IES, the participation of society in the formulation of public policies is pivotal. However, the popular perception of these subjects (IES and BI) is not commonly integrated into public policies. In this study, we investigated the popular perception and knowledge of IES, BI, their impacts, and awareness of public policies involving IES of residents of the state of Acre, in the Southwestern Brazilian Amazon. We used a questionnaire form distributed online to the 22 municipalities of the state. We obtained a sample of 302 responded questionnaires. Objective responses were analyzed by comparison of frequencies, and open-ended responses were submitted to a textual analysis by hierarchization and similarity. Higher education levels amongst respondents were positively related to the level of understanding on the topic. Most respondents reported possessing knowledgeon issues involving IES and BI and about both negative and positive impacts caused by IES. More than 70% of respondents reported a lack of awareness of public policies to prevent or eradicate IES. Ourpioneering study presents evidence that the popular perception of IES and BI is complex. It provides relevant material showing the importance of understanding popular perception and assimilating this perception into the development of effective strategies to prevent IES in the future.


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Adelino, J.R.P.; Heringer, G.; Diagne, C.; Courchamp, F.; Faria, L.D.B.; Zenni, R.D., 2021. The economic costs of biological invasions in Brazil: a first assessment. NeoBiota, v. 67, 349-374. https://doi.org/10.3897/neobiota.67.59185

Bertolino, S.; Vimercati, G.; Paoloni, D.; Martinoli, A.; Wauters, L.A.; Genovesi, P.; La Morgia, V., 2021. Restricted access to private properties limits management of invasive alien species: A literature review and case studies. Journal of Environmental Management, v. 297, 113318. https://doi.org/10.1016/j.jenvman.2021.113318

Bryer, J., 2016. Analysis and visualization likert based items (Accessed September, 2022) at:. https://github.com/jbryer/likert

Carter, L.; Mankad, A.; Zhang, A.; Curnock, M.I.; Pollard, C.R., 2021. A multidimensional framework to inform stakeholder engagement in the science and management of invasive and pest animal species. Biological Invasions, v. 23, 625-640. https://doi.org/10.1007/s10530-020-02391-6

Cordeiro, B.; Marchante, H.; Castro, P.; Marchante, E., 2020. Does public awareness about invasive plants pays off? An analysis of knowledge and perceptions of environmentally aware citizens in Portugal. Biological Invasions, v. 22, (7), 2267-2281. https://doi.org/10.1007/s10530-020-02247-z

Cottet, M.; Piola, F.; Le Lay, Y. F.; Rouifed, S.; Rivière-Honegger, A., 2015. How environmental managers perceive and approach the issue of invasive species: the case of Japanese knotweed s. l. (Rhône River, France). Biological Invasions, v. 17, 3433-3453. https://doi.org/10.1007/s10530-015-0969-1

Crête, G.; Herrmann, T.M.; Fortin, C.; Schüttler, E., 2020. Public perceptions of non-native plant species on a Chilean sub-Antarctic Island. Polar Geography, v. 43, (1), 46-63. https://doi.org/10.1080/1088937X.2019.1707321

Daly, E.Z; Chabrerie, O.; Massol, F.; Facon, B.; Hess, M.C.M.; Tasiemski, A.; Grandjean, F.; Chauvat, M.; Viard, F.; Forey, E.; Folcher, L.; Buisson, E.; Boivin, T.; Baltora-Rosset, S.; Ulmer, R.; Gibert, P.; Thiébaut, G.; Pantel, J.H.; Heger, T.; Richardson, D.M.; Renault, D., 2023. A synthesis of biological invasion hypotheses associated with the introduction–naturalisation–invasion continuum. Oikos, e09645. https://doi.org/10.1111/oik.09645

Dechoum, M.D.S.; Giehl, E.L.H.; Sühs, R.B.; Silveira, T.C.L.; Ziller, S.R., 2019. Citizen engagement in the management of non-native invasive pines: Does it make a difference? Biological Invasions, v. 21, (1), 175-188. https://doi.org/10.1007/s10530-018-1814-0

Dechoum, M.D.S.; Sühs, R.B.; Futada, S.M.; Ziller, S.R., 2021. Distribution of Invasive Alien Species in Brazilian Ecoregions and Protected Areas. In: Pullaiah, T.; Ielmini, M.R. (Eds.), Invasive alien species: observations and issues from around the world. Hoboken, New Jersey, pp. 80-111.

Essl, F.; Lenzner, B.; Bacher, S.; Bailey, S.; Capinha, C.; Daehler, C.; Dullinger, S.; Genovesi, P.; Hui, C.; Hulme, P.E.; Jeschke, J.M.; Katsanevakis, S.; Kühn, I.; Leung, B.; Liebhold, A.; Liu, C.; MacIsaac, H.J.; Meyerson, L.A.; Nuñez, M.A.; Pauchard, A.; Pyšek, P.; Rabitsch, W.; Richardson, D.M.; Roy, H.E.; Ruiz, G.M.; Russell, J.C.; Sanders, N.J.; Sax, D.F.; Scalera, R.; Seebens, H.; Springborn, M.; Turbelin, A.; van Kleunen, M.; von Holle, B.; Winter, M.; Zenni, R.D.; Mattsson, B.J.; Roura‐Pascual, N., 2020. Drivers of future alien species impacts: An expert‐based assessment. Global Change Biology, v. 26, (9), 4880-4893. https://doi.org/10.1111/gcb.15199

García-Llorente, M.; Martín-López, B.; González, J. A.; Alcorlo, P.; Montes, C., 2008. Social perceptions of the impacts and benefits of invasive alien species: implications for management. Biological Conservation, v. 141, (12), 2969-2983. https://doi.org/10.1016/j.biocon.2008.09.003

Instituto Brasileiro de Geografia e Estatística (IBGE), 2022. Acre: Cidades e Estados (Accessed October 22, 2022) at:. https://www.ibge.gov.br/cidades-e-estados/ac.html

Instituto Hórus, 2021. Base de dados Nacional de Espécies Exóticas (Accessed July 10, 2021) at:. em https://bd.institutohorus.org.br/especies

Japelj, A.; Kus Veenvliet, J.; Malovrh, J.; Verlič, A.; De Groot, M., 2019. Public preferences for the management of different invasive alien forest taxa. Biological Invasions, v. 21, 3349-3382. https://doi.org/10.1007/s10530-019-02052-3

Joshi, A.; Kale, S.; Chandel, S.; Pal. D.K., 2015. Likert scale: explored and explained. British Journal of Applied Science & Technology, v. 7, (4), 396-403. https://doi.org/10.9734/BJAST/2015/14975

Kalnicky, E.A.; Brunson, M.W.; Beard, K.H., 2014. A social-ecological systems approach to non-native species: habituation and its effect on management of coqui frogs in Hawaii. Biological Conservation, v. 180, 187-195. https://doi.org/10.1016/j.biocon.2014.09.044

Kourantidou, M.; Haubrock, P.J.; Cuthbert, R.N.; Bodey, T.W.; Lenzner, B.; Gozlan, R.E.; Nuñez, M.A.; Salles, J.M.; Diagne, C.; Courchamp, F., 2022. Invasive alien species as simultaneous benefits and burdens: trends, stakeholder perceptions and management. Biological Invasions, v. 24, (7), 1905-1926. https://doi.org/10.1007/s10530-021-02727-w

Kull, C.A.; Kueffer, C.; Richardson, D.M.; Vaz, A.S.; Vicente, J.R.; Honrado, J.P., 2018. Using the “regime shift” concept in addressing social–ecological change. Geographical Research, v. 56, (1), 26-41. https://doi.org/10.1111/1745-5871.12267

Li, Y.; Liu, X.; Zeng, H.; Zhang, J.; Zhang, L., 2021. Public education improves farmers knowledge and management of invasive alien species. Biological Invasions, v. 23, 2003-2017. https://doi.org/10.1007/s10530-021-02486-8

Liesenfeld, M.V.A.; Souza, A.C.; Amorim, M.D.B.O., 2022. Invasões biológicas: espécies de plantas invasoras ocorrentes na área urbana de Cruzeiro do Sul, Acre, Brasil. In: Liesenfeld; M. V. A.; Souza, R. M.; Silva, J. A. C.; Araújo, E. A. (Orgs.), Ciências Ambientais na Amazônia, Rio Branco, Strictu Senso, pp. 96-113.

Lowry, E.; Rollinson, E.J.; Laybourn, A.J.; Scott, T.E.; Aiello-Lammens, M.E.; Gray, S.M.; Mickley, J.; Gurevitch, J., 2013. Biological invasions: a field synopsis, systematic review, and database of the literature. Ecology and Evolution, v. 3, (1), 182-196. https://doi.org/10.1002/ece3.431

Mason, N.W.; Kirk, N.A.; Price, R.J.; Law, R.; Bowman, R.; Sprague, R.I., 2022. Science for social licence to arrest an ecosystem-transforming invasion. Biological Invasions, v. 25, 873-888. https://doi.org/10.1007/s10530-022-02953-w

Medeiros, H.; Obermuller, F.A.; Daly, D.; Silveira, M.; Castro, W.; Forzza, R.C., 2014. Botanical advances in Southwestern Amazonia: the flora of Acre (Brazil) five years after the first Catalogue. Phytotaxa, v. 177, (2), 101-117. https://doi.org/10.11646/phytotaxa.177.2.2

Mollot, G.; Pantel, J.H.; Romanuk, T N., 2017. The Effects of Invasive Species on the Decline in Species Richness. Advances in Ecological Research, v. 56, 61-83. https://doi.org/10.1016/bs.aecr.2016.10.002

Moro, M.F.; Souza, V.C.; Oliveira-Filho, A.T.D.; Queiroz, L.P.D.; Fraga, C.N.D.; Rodal, M.J.N.; Araújo, F.S.; Martins, F.R., 2012. Alienígenas na sala: o que fazer com espécies exóticas em trabalhos de taxonomia, florística e fitossociologia? Acta Botanica Brasilica, v. 26, 991-999. https://doi.org/10.1590/S0102-33062012000400029

Nuñez, M.A.; Pauchard, A., 2010. Biological invasions in developing and developed countries: does one model fit all? Biological Invasions, v. 12, 707-714. https://doi.org/10.1007/s10530-009-9517-1

Pires, S.A., 2021. Percepção ambiental dos servidores públicos e empregados terceirizados de uma Instituição Federal de Ensino Superior. Dissertation, Programa de Pós-Graduação em Sustentabilidade na Gestão Ambiental, Universidade Federal de São Carlos, Sorocaba. Retrieved 2022, from https://repositorio.ufscar.br

Pyšek, P.; Hulme, P.E.; Simberloff, D.; Bacher, S.; Blackburn, T.M.; Carlton, J.T.; Dawson, D.; Essl, F.; Foxcroft, L.C.; Genovesi, P.; Jeschke, J.M.; Kühn, I.; Liebhold, A.M.; Mandrak, N.E.; Meyerson, L.A.; Pauchard, A.; Pergl, J.; Roy, H.E.; Seebens, H.; van Kleunen, M.; Vilà, M.; Wingfield. M.J.; Richardson, D.M., 2020. Scientists' warning on invasive alien species. Biological Reviews, v. 95, (6), 1511-1534. https://doi.org/10.1111/brv.12627

R Core Team, 2022. R: a language and environment for statistical computing. Vienna: R foundation for Statistical Computing (Accessed July 12, 2022) at:. https://www.r-project.org/.

Ricciardi, A., 2007. Are modern biological invasions an unprecedented form of global change? Conservation Biology, v. 21, (2), 329-336. https://www.jstor.org/stable/4620816

Ricciardi, A.; Ryan, R., 2018. The exponential growth of invasive species denialism. Biological Invasions, v. 20, 549-553. https://doi.org/10.1007/s10530-017-1561-7

Rufino, M.R.; Silvino, A.S.; Moro, M.F., 2019. Exóticas, exóticas, exóticas: reflexões sobre a monótona arborização de uma cidade brasileira. Rodriguésia, v. 70, e03562017. https://doi.org/10.1590/2175-7860201970051

Santafe-Troncoso, V.; Loring, P.A., 2021. Traditional food or biocultural threat? Concerns about the use of tilapia fish in Indigenous cuisine in the Amazonia of Ecuador. People and Nature, v. 3, 887-900. https://doi.org/10.1002/pan3.10235

Seebens, H.; Bacher, S.; Blackburn, T.M.; Capinha, C.; Dawson, W.; Dullinger, S.; Genovesi, P.; Hulme, P.E.; van Kleunen, M.; Kühn, I.; Jeschke, J.M.; Lenzner, B.; Liebhold, A.M.; Pattison, Z.; Pergl, J.; Pyšek, P.; Winter, M.; Essl, F., 2021. Projecting the continental accumulation of alien species through to 2050. Global Change Biology, v. 27, (5), 970-982. https://doi.org/10.1111/gcb.15333

Seebens, H.; Blackburn, T.M.; Dyer, E.E.; Genovesi, P.; Hulme, P.E.; Jeschke, J.M.; Pagad, S.; Pyšek, P.; Winter, M.; Arianoutsou, M.; Bacher, S.; Blasius, B.; Brundu, G.; Capinha, C.; Celesti-Grapow, L.; Dawson, W.; Dullinger, S.; Fuentes, N.; Jäger, H.; Kartesz, J.; Kenis, M.; Kreft, H.; Kühn, I.; Lenzner, B.; Liebhold, A.; Mosena, A.; Moser, D.; Nishino, M.; Pearman, D.; Pergl, J.; Rabitsch, W.; Rojas-Sandoval, J.; Roques, A.; Rorke, S.; Rossinelli, S.; Roy, H.; Scalera, R.; Schindler, S.; Štajerová, K.; Tokarska-Guzik, B.; van Kleunen, M.; Walker, K.; Weigelt, P.; Yamanaka, T.; Essl, F., 2017. No saturation in the accumulation of alien species worldwide. Nature Communications, v. 8, (1), 14435. https://doi.org/10.1038/ncomms14435

Shackleton, C.M.; Shackleton, R.T., 2016. Knowledge, perceptions and willingness to control designated invasive tree species in urban household gardens in South Africa. Biological Invasions, v. 18, (6), 1599-1609. https://doi.org/10.1007/s10530-016-1104-7

Shackleton, R.T.; Richardson, D.M.; Shackleton, C.M.; Bennett, B.; Crowley, S.L.; Dehnen-Schmutz, K.; Estévez, R.A.; Fischer, A.; Kueffer, C.; Kull, C.A.; Marchante, E.; Novoa, A.; Potgieter, L.J.; Vaas, J.; Vaz, A.S.; Larson, B.M., 2019. Explaining people's perceptions of invasive alien species: A conceptual framework. Journal of Environmental Management, v. 229, 10-26. https://doi.org/10.1016/j.jenvman.2018.04.045

Shrestha, B.B.; Shrestha, U.B.; Sharma, K.P.; Thapa-Parajuli, R.B.; Devkota, A.; Siwakoti, M., 2019. Community perception and prioritization of invasive alien plants in Chitwan-Annapurna Landscape, Nepal. Journal of Environmental Management, v. 229, 38-47. https://doi.org/10.1016/j.jenvman.2018.06.034

Simberloff, D. Non-native invasive species and novel ecosystems. F1000Prime Reports 2015, 7-47. https://doi.org/10.12703/P7-47

Simberloff, D.; Martin, J.L.; Genovesi, P.; Maris, V.; Wardle, D.A.; Aronson, J.; Courchamp, F.; Galil, B.; García-Berthou, E.; Pascal, N.; Pyšek, P.; Sousa, R.; Tabacchi, E.; Vilà, M., 2013. Impacts of biological invasions: what's what and the way forward. Trends in Ecology and Evolution, v. 28, (1), 58-66. https://doi.org/10.1016/j.tree.2012.07.013

Souza, M.A.R.; Wall, M.L.; Thuler, A.C.M.C.; Lowen, I.M.V.; Peres, A.M., 2018. The use of IRAMUTEQ software for data analysis in qualitative research. Revista da Escola de Enfermagem da USP, v. 52, e03353. 10.1590/S1980-220X2017015003353

Sousa, Y.S.O., 2021. O Uso do software Iramuteq: fundamentos de lexicometria para pesquisas qualitativas. Estudos e Pesquisas em Psicologia, v. 21, p. 1541-1560. https://doi.org/10.12957/epp.2021.64034

Sousa, Y.S.O.; Gondim, S.M.G.; Carias, I.A.; Batista, J.S.; Machado, K.C.M.D., 2020. O uso do software Iramuteq na análise de dados de entrevistas. Revista Pesquisas e Práticas Psicossociais, v. 15, (2), 1-19 (Accessed February 13, 2024) at:. https://www.seer.ufsj.edu.br/revista_ppp/article/view/e3283

Steele, Z.T.; Pienaar, E.F., 2021. Knowledge, reason and emotion: using behavioral theories to understand people’s support for invasive animal management. Biological Invasions, v. 23, (11), 3513-3527. https://doi.org/10.1007/s10530-021-02594-5

van Eeden, L.M.; Newsome, T.M.; Crowther, M.S.; Dickman, C.R.; Bruskotter, J., 2020. Diverse public perceptions of species' status and management align with conflicting conservation frameworks. Biological Conservation, v. 242, 108416. https://doi.org/10.1016/j.biocon.2020.108416

Veríssimo, A.; Cochrane, M.A.; Souza Junior, C., 2002. National forests in the Amazon. Science, v. 297, (5586), 1478-1478. https://doi.org/10.1126/science.1072807

Vimercati, G.; Kumschick, S.; Probert, A.F.; Volery, L.; Bacher, S., 2020. The importance of assessing positive and beneficial impacts of alien species. NeoBiota, v. 62, 525-545. https://doi.org/10.3897/neobiota.62.52793

Wickham, H., 2016. ggplot2: elegant graphics for data analysis. Springer International Publishing, Switzerland, 276 p.

Zenni, R.D.; de Sá Dechoum, M.; Ziller, S.R., 2016. Dez anos do informe brasileiro sobre espécies exóticas invasoras: avanços, lacunas e direções futuras. Biotemas, v. 29, (1), 133-153. https://doi.org/10.5007/2175-7925.2016v29n1p133




How to Cite

Amorim, M. D. B. de O., Oliveira, I., & Liesenfeld, M. V. de A. (2024). Popular knowledge and perceptions of invasive exotic species in Acre, Brazil. Revista Brasileira De Ciências Ambientais (RBCIAMB), 59, e1762. https://doi.org/10.5327/Z2176-94781762