Invasive alien species are recognized as the second leading cause of biodiversity loss and species extinction worldwide, with zoochoric dispersion being a key factor for the success of invasive organisms as they can favor the germination of these species. We performed a study in the southern Brazil involving three generalist species with abundant and wide amount of distribution in Latin America, with the objective of evaluating seed ingestion by positive criteria about its germination. We investigated the role of bird digestion on the germination of a native pioneer species, the Brazilian pepper—Schinus terebinthifolia, an invasive alien species in many parts of the world. We compared the germination of this native with those of the invasive Australian cheesewood (Pittosporum undulatum) concurrently. Interestingly, the effect of potentiating germination was more intense in the introduced species than for the native species. Pitangus sulphuratus is an important potential disperser for the germination of P. undulatum seeds, enabling the colonization of new areas in the Atlantic Forest of southern Brazil.

外来入侵物种被公认为是全球范围内生物多样性丧失和物种灭绝的第二大原因，而动物的分散是入侵生物成功的关键因素，因为它们有利于这些物种的萌发。我们在巴西南部进行了一项研究，该研究涉及三种在拉丁美洲分布广泛且分布广泛的通配种，目的是通过有关种子萌发的积极标准来评估种子的摄入。我们调查了鸟类消化作用对一种本地先驱物种巴西胡椒-Schinus terebinthifolia（世界许多地方的外来入侵物种）发芽的作用。我们比较了这种本地人的发芽和澳大利亚侵入性阔叶木（Pittosporum undulatum）同时进行。有趣的是，与本地物种相比，引入物种中增强发芽的作用更为强烈。皮唐古斯（Pitangus sulphuratus）是undulatum种子发芽的重要潜在分散剂，可在巴西南部大西洋森林的新地区定居。