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Effects Of Wollastonia Biflora Expansion On The Soil Seed Bank In Native Forest Communities On A Tropical Coral Island, Yao Huang, Hai Ren, Jun Wang, Nan Liu, Shuguang Jian, Hongyue Cai, Dafeng Hui, Qinfeng Guo
Effects Of Wollastonia Biflora Expansion On The Soil Seed Bank In Native Forest Communities On A Tropical Coral Island, Yao Huang, Hai Ren, Jun Wang, Nan Liu, Shuguang Jian, Hongyue Cai, Dafeng Hui, Qinfeng Guo
Biology Faculty Research
Invasive plants and native weeds (i.e., undesirable plant species) often have negative effects on native ecosystems. However, the effects of weed expansion on soil seed banks and seedling emergence in native forests have not been well investigated. In this study, we used a seedling emergence assay to assess the effects of expansion by a native weed, the perennial C4 herb Wollastonia biflora, on the soil seed bank and above-ground vegetation in forests on Yongxing Island, a coral island in the South China Sea. We found that W. biflora expansion was associated with a reduced abundance of native species in the …
Nitrogen Uptake By Two Plants In Response To Plant Competition As Regulated By Neighbor Density, Xuan Jia, Chaohe Huangfu, Dafeng Hui
Nitrogen Uptake By Two Plants In Response To Plant Competition As Regulated By Neighbor Density, Xuan Jia, Chaohe Huangfu, Dafeng Hui
Biology Faculty Research
Plant species may acquire different forms of nitrogen (N) to reduce competition for the same resource, but how plants respond to neighbors with different densities in their N uptake is still poorly understood. We investigated the effects of competition regime on the uptake of different N forms by two hygrophytes, Carex thunbergii and Polygonum criopolitanum, by conducting a hydroponic test of excised roots and an in situ experiment in a subtropical wetland ecosystem. The two species were grown either in monocultures or mixtures with various neighbor densities. Root functional traits and N uptake rates of different N forms were measured. …
Bryophyte Diversity Is Related To Vascular Plant Diversity And Microhabitat Under Disturbance In Karst Caves, Hai Ren, Faguo Wang, Wen Ye, Qianmei Zhang, Taotao Han, Yao Huang, Guowei Chu, Dafeng Hui, Qinfeng Guo
Bryophyte Diversity Is Related To Vascular Plant Diversity And Microhabitat Under Disturbance In Karst Caves, Hai Ren, Faguo Wang, Wen Ye, Qianmei Zhang, Taotao Han, Yao Huang, Guowei Chu, Dafeng Hui, Qinfeng Guo
Biology Faculty Research
Plant diversity, habitat properties, and their relationships in karst caves remain poorly understood. We surveyed vascular plant and bryophyte diversities and measured the habitat characteristics in six karst caves in south China with different disturbance histories (one had been disturbed by poultry feeding, three had been disturbed by tourism, and two were undisturbed). The plant diversity differences among the six caves were analyzed using cluster analysis, and the relationships of plant diversity and microhabitat were assessed using canonical correspondence analysis. We found a total of 43 angiosperm species from 27 families, 20 lycophyte and fern species from 9 families, and …