A Global Trend towards the Loss of Evolutionarily Unique Species in Mangrove Ecosystems.
A Global Trend towards the Loss of Evolutionarily Unique Species in Mangrove Ecosystems.
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DOI：
10.1371/journal.pone.0066686
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Davies TJ
中科院分区：
文献类型：
--
作者：
Daru BH;Yessoufou K;Mankga LT;Davies TJ
红树林生物群落作为一种独特的森林类型，在陆地、河口和近岸海洋生态系统的界面上脱颖而出。然而，红树林物种正日益受到威胁，全球范围内的范围正在缩小，需要采取紧急保护行动。在此，我们评估了红树林物种丰富度和进化多样性的空间分布，并评估了全球衰退和灭绝风险的潜在预测因素。我们发现，人类的压力（以与红树林相关的不同用途的数量来衡量）与灭绝概率呈强烈的负相关，而物种年龄是全球衰退的最佳预测指标，可以解释15%的灭绝风险变化。虽然大多数红树林物种被世界自然保护联盟列为最不受关注的物种，但我们的研究发现，更受威胁的物种往往是那些在进化上更独特的物种，这令人担忧，因为它们的灭绝将导致系统发育多样性的更大损失。最后，我们确定了物种相对较少但进化历史丰富的生物地理区域，并建议这些区域应优先考虑保护。我们的研究提供了系统发育信息，这对制定全球红树林生态系统的统一管理计划具有重要意义。
The mangrove biome stands out as a distinct forest type at the interface between terrestrial, estuarine, and near-shore marine ecosystems. However, mangrove species are increasingly threatened and experiencing range contraction across the globe that requires urgent conservation action. Here, we assess the spatial distribution of mangrove species richness and evolutionary diversity, and evaluate potential predictors of global declines and risk of extinction. We found that human pressure, measured as the number of different uses associated with mangroves, correlated strongly, but negatively, with extinction probability, whereas species ages were the best predictor of global decline, explaining 15% of variation in extinction risk. Although the majority of mangrove species are categorised by the IUCN as Least Concern, our finding that the more threatened species also tend to be those that are more evolutionarily unique is of concern because their extinction would result in a greater loss of phylogenetic diversity. Finally, we identified biogeographic regions that are relatively species-poor but rich in evolutionary history, and suggest these regions deserve greater conservation priority. Our study provides phylogenetic information that is important for developing a unified management plan for mangrove ecosystems worldwide.
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影响因子：
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作者：
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通讯作者：
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影响因子：
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vandenBelt, M
DOI：
10.1016/j.palaeo.2005.01.008
发表时间：
2005-05-13
影响因子：
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作者：
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通讯作者：
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