Jackfruit (Artocarpus heterophyllus Lam.) is an exotic invasive plant species in the Brazilian Atlantic Forest that causes changes in the environment through the release of allelopathic substances and has high fruit production. We aimed to understand the potential effects of the jackfruit on the non-volant small mammal assemblage in an area protected by law, in the municipality of Cariacica – Espírito Santo, south-eastern Brazil. We sampled the small mammals assemblage using live traps in 18 sites, eight with jackfruit and 10 without. We ordinated the assemblage and tested possible differences in species richness and abundance according to the jackfruit density. We recorded 31 species of non-volant small mammals, with 13 species endemic to the Atlantic Forest. Jackfruit species can affect both positively and negatively the studied assemblage of non-volant small mammals. For species with a frugivory habit, jackfruit has a positive effect favouring these species. On the other hand, for insectivorous species, jackfruit represents an impact inhibiting the presence of these species in an area with high jackfruit density. The results presented are the first step in understanding the effect of this invasive species on a small mammals assemblage and initiating a monitoring of these species in areas affected by jackfruits. Furthermore, management of jackfruits in this protected area is required.

中文翻译：

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异国情调的树（菠萝蜜，Artocarpus heterophyllus Lam.）会影响大西洋森林保护区内的非挥发性小型哺乳动物群落吗？

菠萝蜜 (太子参Lam.) 是巴西大西洋森林中的外来入侵植物物种，通过释放化感物质引起环境变化，果实产量高。我们的目的是了解菠萝蜜对巴西东南部圣埃斯皮里图市卡里亚西卡市受法律保护的非挥发性小型哺乳动物群落的潜在影响。我们在 18 个地点使用活诱捕器对小型哺乳动物群落进行了采样，其中 8 个有菠萝蜜，10 个没有。我们根据菠萝蜜密度调整了组合并测试了物种丰富度和丰度的可能差异。我们记录了 31 种非活动小型哺乳动物，其中 13 种是大西洋森林特有的。菠萝蜜物种可以积极和消极地影响所研究的非活动小型哺乳动物的组合。对于有食果习惯的物种，菠萝蜜有利于这些物种的积极影响。另一方面，对于食虫物种，菠萝蜜代表一种抑制这些物种在菠萝蜜密度高的地区存在的影响。所呈现的结果是了解这种入侵物种对小型哺乳动物群落的影响并开始在受菠萝蜜影响的地区监测这些物种的第一步。此外，还需要对保护区内的菠萝蜜进行管理。所呈现的结果是了解这种入侵物种对小型哺乳动物群落的影响并开始在受菠萝蜜影响的地区监测这些物种的第一步。此外，还需要对保护区内的菠萝蜜进行管理。所呈现的结果是了解这种入侵物种对小型哺乳动物群落的影响并开始在受菠萝蜜影响的地区监测这些物种的第一步。此外，还需要对保护区内的菠萝蜜进行管理。