共被期刊论文引用了2次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 拉萨河谷植物物种丰富度空间分布格局及其环境解释显示文摘为研究拉萨河谷植物物种丰富度的空间分布格局,按不同植被类型设置47个样地,每个样地随机设置3个样方,共141个样方。记录维管植物247种,隶属47科、134属。运用基于距离的Moran特征向量图(MEM)和方差分解,分析环境因子和空间变量对植物物种丰富度空间分布的影响;运用广义可加模型(GAM)对各环境因子与转换物种丰富度(TSR)进行回归分析,同时对各环境因子之间进行相关分析;运用除趋势对应分析(DCA)对样地和物种进行非约束排序,并将环境因子与排序轴之间进行相关分析。结果表明空间结构对拉萨河谷植物物种丰富度分布具有重要作用,而环境因子的空间格局是影响物种丰富度空间分布格局的重要因素;各环境因子与TSR的GAM拟合结果发现气候因子、经纬度和海拔对TSR存在显著的影响;DCA排序结果表明干扰可能是影响物种丰富度空间格局的未测环境因子,DCA第二轴反映了湿度梯度。干扰和湿度可能是拉萨河谷植物物种丰富度空间分布格局的主要影响因素。 | 拉多 张燕杰 刘杰 崔玲玲 庞有智 | 2016 | 草业学报2016，25，10： | 13 |
| 2 | Latitudinal and elevational patterns of phylogenetic structure in forest communities in China’s mountains显示文摘The phylogenetic structure incorporates both ecological and evolutionary processes to explain assembly of a local community.The 'phylogenetic niche conservatism'(PNC) hypothesis suggests that distributions of species along environmental gradients reflect both ancestral traits and ecological fitness of individual species. The temperature is generally regarded to change in similar ways along both latitudinal and elevational gradients but with different historical contingence. Therefore, comparing the latitudinal and elevational patterns of phylogenetic structure of communities is of help to depict the effects of ecological and evolutionary processes in shaping the community assembly. In this study, we explored the latitudinal, elevational and climatic patterns of phylogenetic structure of 569 angiosperm tree communities from 38 mountains across China. We found a larger mean abundance-weighted net relatedness index(NRI) than the presence/absence-based NRI;and the NRI decreased when the species pool downscaled from the full pool to county-level pool. The mean family age and phylogenetic species evenness decreased with latitude, and increased with temperature of the coldest month and precipitation;whilst NRI increased with latitude, and decreased with mean temperature of the coldest month. In most mountains, NRI, mean family age and phylogenetic species evenness showed non-significant trends along the elevational gradient. Our results support the main predictions of PNC for the latitudinal gradient, i.e., species tend to be more phylogenetically related to each other and clades are younger in temperate environments,compared to those in tropical environments. We suggested that independent species pools and abundance should be incorporated in analysis to fully represent the phylogenetic structure of communities. | Gheyur Gheyret Yanpei Guo Jingyun Fang Zhiyao Tang | 2020 | Science China(Life Sciences)2020，63，12： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员