Jinlong Zhang

 
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Research


  • Phylogenetic diversity patterns 
          Patterns of phylogenetic diversity and phylogenetic beta diversity have long been an intriguing field in biodiversity studies. I analysed and assessed the relative importance of environmental factors and geographical distance governing the plant phylogenetic patterns and species assembly ( Faith's PD, Pybus's Gamma statistic, NRI, NTI, Phylosor ) over different spatial scales in China. 
  • Point pattern analysis of forest plots
          Stochastic process has been known playing important roles in community assembly. I used the Homogenetic Poisson Process, Heterogenetic Poisson Process, Heterogenetic Thomas Process, Homogenetic Thomas Process to quantify the relative importance of  stochastic process and niche based process. These stochastic processes simulates complete randomness or taking dispersal limitation/topographic variation into account. 
  • Niche Evolution
          In a macroecological point of view, each species has its own niche. By taking the phylogenetic relationship of the taxa into account, one is able to map the niche of the historical nodes in the phylogenetic tree, to reveal the evolution of the niche during the speciation. To characterize the niche of each species over large scales, I used the Maxent to predict the suitability for each existing species, and use maximum likelihood/parsimony to reconstruct the process of niche evolution.   

_ Last update: 14-Oct-2014
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