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[英文摘要]Biodiversity conservation has attracted much attention around the world due to species extinction risks resulting from global climate change, human activities and so on. Traditional attempts to biodiversity conservation typically focus on the analyses of taxonomic composition and its distribution pattern, often ignoring the rich context that evolutionary history can provide. As the intersection area of global biodiversity hotspots, the biodiversity conservation in Yunnan has been widely concerned. To better protect biodiversity in Yunnan, we combine data on the distributions and phylogenetic relationships of species from asterides in Yunnan angiosperms flora, explore how taxonomic composition (including species, endemic species, and threatened species) and phylogenetic diversity vary across the different geographic regions in this area. And then integrating the distribution of nature protected areas with data of taxonomic and phylogenetic composition, we identify the key areas for biodiversity conservation. As expected, phylogenetic diversity was well correlated with taxonomic richness for species, endemic species, and threatened species among the geographic regions. Using null model analyses, we found the standardized effect size of the phylogenetic diversity decreases gradually along the latitude gradient in Yunnan. We suggest that the southern, southeastern, and northwestern Yunnan should be the biodiversity priority areas since they may help maximize the protection of evolutionary history and potential for Yunnan angiosperm flora. Our results show that the integration of phylogenetic information can help us to better understand the formation and development of plant diversity, and provide more clues for biodiversity protection.
Download Comment Cooperative journals:《广西植物》 Hits:454 Downloads:253
Recommended references: 周韩洁,杨入瑄,李嵘.(2022).云南被子植物菊类分支的系统发育多样性及其分布格局.广西植物.[ChinaXiv:202205.00151] (Click&Copy)
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[V1] 2022-05-21 20:03:12 chinaXiv:202205.00151V1 Download
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