摘要
Dear Editor,The dispersal and migration of animal populations are fundamental issues in population ecology(Wei 2018).Understanding the current phylogeographic patterns of animal populations and species conservation requires studying the dispersal and migration of animals during historical periods(Newton et al.1999;Feoktistova et al.2023).There may be three processes for the diffusion and migration of animals.The first process is the repeated migration in the latitudinal direction as ice sheets advance and retreat.The second is the vertical migration along the altitude as mountain glaciers wax and wane,and the third is the migration in the longitudinal direction(Hewitt 2004).
基金
supported by the National Natural Science Foundation of China(NSFC,No.U1704102 and No.31172056).