Spatial dispersion patterns of trees in a tropical rainforest in Xishuangbanna, southwest China
文献类型: 外文期刊
第一作者: Lan, Guoyu
作者: Lan, Guoyu;Zhu, Hua;Cao, Min;Hu, Yuehua;Wang, Hong;Deng, Xiaobao;Zhou, Shishun;Cui, Jingyun;Lan, Guoyu;Hu, Yuehua;Huang, Jianguo;He, Youcai;Liu, Linyun;Xu, Hailong;Song, Junping;Lan, Guoyu
作者机构:
关键词: janzen-connell effects;spatial distribution;species diversity;tropical rainforest;xishuangbanna
期刊名称:ECOLOGICAL RESEARCH ( 影响因子:1.917; 五年影响因子:2.095 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Spatial dispersion patterns of trees at different life stages are an important aspect to investigate in understanding the mechanisms that facilitate species coexistence. In this paper, Ripley's univariate L(r) and bivariate L_(12)(r) functions were used to analyze spatial distribution patterns and spatial associations across different life stages of 131 tree species in a 20-ha plot of a tropical rainforest in Xishuangbanna, southwest China. Our results show that: (1) Saplings of 109 (83.2%) species have a significant clumped distribution, which confirms the ubiquity of clumped spatial distributions among tropical tree species. (2) Adults of 126 (96.2%) species have a random distribution suggesting that density-dependent mortality can make the spatial pattern of tropical trees more regular with time. (3) At small scales (0-10 m), 95 (72.5%) species have a neutral or negative sapling-adult association, implying that there is recruitment limitation within the vicinity of their con-specific adults. The reduction in spatial clumping in going from younger to older life stages and the neutral or negative sapling-adult association imply density-dependent mortality in the vicinity of adult trees. In accordance with the Janzen Connell hypothesis, such density-dependent mortality can free up space for other species to colonize, contributing to the maintenance of species diversity.
分类号: Q1
- 相关文献
作者其他论文 更多>>
-
Gene expression profiles of Chinese medaka ( Oryzias sinensis ) primary hepatocytes in response to estrone (E1 ), 17 i3-estradiol (E2 ) and estriol (E3 )
作者:Wang, Yue;Lu, Junhui;Xie, Zhongtang;Huai, Narma;Zhang, Kailun;Zhou, Ying;Reze, Yilihamu;Li, Xiqing;Zhang, Zhaobin;Zhu, Hua
关键词:Oryzias sinensis; Primary hepatocytes; Natural estrogens; Vitellogenin; toxicogenomics
-
Unraveling the Metabolic Enigma: A High-Resolution LC-MS Approach to Decipher Two Triazine Herbicides Tolerance in Radish and Rice
作者:Ding, Qian;Li, Xuan;Li, Yun;Li, Pan Pan;Qin, Yi;Cao, Min;Xiong, Xiao Hui;Lu, Yi Chen;Yuan, Yi;Xu, Liang Jun
关键词:rice; radish; metribuzin; terbuthylazine; metabolic fate
-
Multifunctional electrospun nanofibrous film integrated with cinnamon essential oil emulsion stabilized by dealkali lignin for active packaging material
作者:Li, Na;Xiang, Hong-jia;Qiu, Wei-peng;Hong, Yu-xuan;Huang, Kai-wen;Wei, Xiao-qun;Wang, Hong;Wen, Peng;Hu, Teng-gen;Guo, Chuang-zong;Yao, Xu-rui
关键词:Cinnamon essential oil; Dealkali lignin; Emulsion electrospinning; Antibacterial; Antioxidant
-
Biodegradable taro stem cellulose aerogel: A simple approach for adsorbing microplastics and dyestuffs contaminants
作者:Qiu, Wei-peng;Su, Hai-ze;Su, Hao;Li, Na;Lai, Li-shan;Zhu, Jia-le;Xu, Zhen-lin;Wang, Hong;Wen, Peng;Hu, Teng-gen;Zhao, Ya-li;Wen, Peng
关键词:Biomass aerogel; Taro stem microcrystalline cellulose; Microplastics and dyes; Adsorption mechanism
-
α-Glycerol Monolaurate Promotes Tight Junction Assembly and Enhances Epithelial Barrier Function in IPEC-J2 Cells and Partridge Chicks
作者:Dai, Siyu;Meng, Shuai;Liu, Shifeng;Wang, Hong;Li, Dagang
关键词:CaSR/PLC/IP3/AMPK signaling pathway; intestinal epithelia; tight junction assembly; alpha-glycerol monolaurate
-
MdGRF22, a 14-3-3 Family Gene in Apple, Negatively Regulates Drought Tolerance via Modulation of Antioxidant Activity and Interaction with MdSK
作者:Ren, Jiaxuan;Wang, Hong;Zhao, Mingxin;Liang, Guoping;Lu, Shixiong;Mao, Juan
关键词:apple;
MdGRF22 ; Y2H; antioxidant system -
Identification of serine acetyltransferase (SAT) gene family in peach (Prunus persica) and study on the function of PpSAT1 gene regulating adventitious root formation
作者:Hao, Lanlan;Zhang, Fan;Zhang, Xuebing;Yang, Yang;Wang, Hong;Hao, Lanlan;Wang, Hong
关键词:
Prunus persica ; SAT gene family; Gene cloning; Adventitious root; Genetic transformation