驳斥起源地 Centinelan 灭绝的假说

IF 15.8 1区 生物学 Q1 PLANT SCIENCES
Dawson M. White, Nigel C. A. Pitman, Kenneth J. Feeley, Gonzalo Rivas-Torres, Santiago Bravo-Sánchez, Francisco Sánchez-Parrales, John L. Clark, Carmen Ulloa Ulloa, Xavier Cornejo, Thomas L. P. Couvreur, Marcia Peñafiel, Gladys Benavides, Carmita Bonifaz, Juan Carlos Cerón, Andrea Fernández, Riley P. Fortier, Daniel Navas-Muñoz, Verónica Rojas M, J. Nicolás Zapata, Justin Williams, Juan Ernesto Guevara-Andino
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引用次数: 0

摘要

科学家们对热带植物群落的了解有限,这掩盖了栖息地破坏造成物种丧失的真实程度1。Centinelan 灭绝假说2,3 提出了一种极端但被广泛引用的情况,即森林砍伐导致仅在单一地理位置已知的物种立即灭绝。然而,目前仍不清楚这类微观物种的消失是反映了它们在全球范围内的灭绝,还是反映了在更大范围内的收集工作不足。在这里,我们综合了厄瓜多尔森蒂内拉被严重砍伐的热带云雾林(TCF)数十年来的植物学数据,对这些假设进行了验证。我们发现,该地区 99% 的假定微型植物已在其他地方采集到,而且并未灭绝。我们的野外工作还发现了新物种,凸显了热带云雾林的持久保护价值,以及为揭示此类植物多样性 "黑点 "所需的巨大努力4。野外研究和标本馆研究对于采取必要的保护行动以防止地球上陷入困境的云雾林中植物大规模灭绝仍然至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Refuting the hypothesis of Centinelan extinction at its place of origin

Refuting the hypothesis of Centinelan extinction at its place of origin

Refuting the hypothesis of Centinelan extinction at its place of origin
Scientists’ limited understanding of tropical plant communities obscures the true extent of species loss caused by habitat destruction1. The Centinelan extinction hypothesis2,3 posits an extreme but widely referenced scenario wherein forest clearing causes the immediate extinction of species known only from a single geographic location. It remains unclear, however, whether the disappearance of such microendemics reflects their global extinction or insufficient collection effort at larger scales. Here we test these hypotheses by synthesizing decades of floristic data from the heavily deforested tropical cloud forest (TCF) at Centinela, Ecuador. We find that 99% of its putative microendemics have been collected elsewhere and are not extinct. Our field work also revealed new species, highlighting the enduring conservation value of TCFs and the intense efforts required to illuminate such plant diversity ‘darkspots’4. Field and herbarium research remain essential to the conservation action needed to forestall large-scale plant extinctions in Earth’s beleaguered cloud forests. Synthesis of decades of field, herbarium and taxonomic studies show the presumed extinct species of Ecuador’s iconic Centinela ridge have survived, revealing the complexity of tropical cloud forests and offering new optimism for their conservation.
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来源期刊
Nature Plants
Nature Plants PLANT SCIENCES-
CiteScore
25.30
自引率
2.20%
发文量
196
期刊介绍: Nature Plants is an online-only, monthly journal publishing the best research on plants — from their evolution, development, metabolism and environmental interactions to their societal significance.
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