The palm Mauritia flexuosa, a keystone plant resource on multiple fronts
The palm Mauritia flexuosa, a keystone plant resource on multiple fronts
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毛里求斯棕榈，多方面的重要植物资源
DOI：
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发表时间：
2019
影响因子：
3.4
通讯作者：
M. Peñuela
中科院分区：
文献类型：
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作者：
Yntze van der Hoek;Sara Álvarez Solas;M. Peñuela
关键物种是生物体，通常是更高营养水平的动物，相对于它们的丰富程度，它们具有较大的生态影响。最近对这一概念进行了扩展，认识到影响其他关键物种的超关键物种，如人类，往往在多个生态系统动态中发挥关键作用。在系统回顾之后，我们提出新热带棕榈物种毛里求斯弯曲，虽然丰富的地方，发挥类似于一个超拱心石物种的作用。首先，它为各种各样的物种（至少940种脊椎动物）提供了多种类型的关键植物资源（食物、巢穴、栖息地）。在直接将棕榈作为食物或筑巢资源的脊椎动物中（至少74种），至少8种高度依赖棕榈生存，28种是濒危物种，至少19种本身就是关键物种。这意味着弯毛藻丰度或分布的变化可能对新热带生态系统产生多重级联效应。此外，我们强调，这种棕榈对许多无脊椎动物和其他生物也很重要，并提供多种生态系统服务，如碳封存。这种巨大的生态作用，加上它为人类提供的大量产品，使该物种独特，值得在整个新热带地区的保护和可持续管理计划中优先考虑。
Keystone species are organisms, usually animals of higher trophic levels, that have large ecological impacts relative to their abundance. A recent extension of this concept recognizes hyperkeystone species, such as humans, which affect other keystone species and often play a key role in multiple ecosystem dynamics. Following a systematic review, we propose that the Neotropical palm species Mauritia flexuosa, though abundant locally, plays a role resembling that of a hyperkeystone species. First, it provides multiple types of key plant resources (food, nest sites, habitat) to a wide variety of species (at least 940 vertebrate species). Of vertebrates that directly use this palm as a food or nest resource (at least 74), at least 8 highly dependent on it for survival, 28 are threatened species, and at least 19 are keystone species themselves. This implies that a change in the abundance or distribution of Mauritia flexuosa is likely to have multiple cascading effects on Neotropical ecosystems. In addition, we highlight that this palm is also important for many invertebrates and other organisms and provides multiple ecosystem services, such as carbon sequestration. This vast ecological role of M. flexuosa, combined with its provision of a host of products to people, makes the species unique and worth prioritizing in conservation and plans for sustainable management across the Neotropics.