Realistic losses of rare species disproportionately impact higher trophic levels
Realistic losses of rare species disproportionately impact higher trophic levels
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DOI：
10.1111/j.1461-0248.2012.01758.x
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发表时间：
2012-05-01
期刊：
影响因子：
8.8
通讯作者：
Low, Natalie H. N.
中科院分区：
文献类型：
--
作者：
Bracken, Matthew E. S.;Low, Natalie H. N.
预测生物多样性变化的后果需要了解物种对灭绝的敏感性及其在生态系统中的功能作用。然而，很少有研究评估现实的、非随机的生物多样性丧失的影响，严重限制了生物多样性研究在保护方面的适用性。在这里，我们故意模仿物种丧失的自然模式，从岩石海岸群落中清除了固着物种。我们发现，系统中最稀有的物种自下而上地发挥作用，对消费者的多样性和丰富性产生不成比例的影响。海藻和无脊椎动物的多样化组合中稀有物种的实际损失，共同包括
Predicting the consequences of changes in biodiversity requires understanding both species susceptibility to extirpation and their functional roles in ecosystems. However, few studies have evaluated the effects of realistic, non-random biodiversity losses, severely limiting the applicability of biodiversity research to conservation. Here, we removed sessile species from a rocky shore community in a way that deliberately mimicked natural patterns of species loss. We found that the rarest species in the system act from the bottom up to disproportionately impact the diversity and abundance of consumers. Realistic losses of rare species in a diverse assemblage of seaweeds and sessile invertebrates, collectively comprising