Grevillea banksii (Proteaceae), a non-native shrubby tree, has in the past five decades expanded to cover hundreds of thousands of hectares in lowland eastern Madagascar, accompanied by other Australian and pan-tropical species, including Melaleuca quinquenervia, Acacia mangium, and Eucalyptus spp. We investigate contrasting perceptions of this new landscape with view to facilitate future management. Field research was based on 290 surveys, key informant interviews, and ecological inventories at six sites from Farafangana in the south to Fenerive Est in the north. After documenting the ecology and usage of grevillea, we analyse differing ways in which it can be perceived. Perceptions promoted by scientists and administrators include the contrasting ideas of beneficial landscape greening, rampant biological invasion, novel ecosystems, and forest transition. Perceptions held by local actors are highly determined by practical livelihood concerns. These local views are largely positive due to the major role of grevillea firewood and charcoal sales in livelihoods; however, context plays a major role and a number of disadvantages are perceived as well, including difficulty of removal, competition with crop and pasture land, and the respiratory health impacts of involvement in charcoal production. We conclude that policymakers and managers – in this case and in similar cases around the world – need to be more reflexive on the ways in which environmental problems are framed and to put those frames more in conversation with local people's experiences in order to productively resolve invasive species management dilemmas.

Grevillea bankii（Proteaceae）是一棵非本地的灌木树，在过去的五十年中已经扩展到马达加斯加东部低地的数十万公顷土地，伴随着其他澳大利亚和泛热带物种，包括千层金合欢，相思木和桉树spp。我们调查了对这种新形势的不同看法，以期促进未来的管理。实地研究基于290个调查，关键知情人访谈和生态调查，这些调查从南部的Farafangana到北部的Fenerive Est六个站点进行。在记录了grevillea的生态学和用法后，我们分析了可以感知其的不同方法。科学家和管理人员所倡导的看法包括有益的景观绿化，猖biological的生物入侵，新颖的生态系统和森林过渡的不同观念。当地演员的看法在很大程度上取决于实际的生计问题。由于格雷维尔木柴和木炭销售在生计中的重要作用，这些当地观点在很大程度上是积极的。然而，环境起着主要作用，人们也意识到许多不利因素，包括搬运困难，与农作物和牧场的竞争以及参与木炭生产对呼吸健康的影响。我们得出的结论是，在这种情况下以及在世界各地的类似情况下，决策者和管理者都需要对环境问题的处理方式更加自省，并更多地与当地人的经验进行对话，以便有效地解决侵入性问题。物种管理困境。