摘要
By using ‘history reconstruction method’,this paper studied the dynamics of two Polytrichum juniperinum populations with and without sporophytes.The population with sporophyte production experienced a dynamic process from increase to stabilization,while that without sporophyte production experienced a process from increase to decrease.Before 2003,both the increase rate and the birth rate of two populations decreased continuously,with the death rate showing the tendency from decrease to a continuous increase.The advantages of ’history reconstruction method’ in studying population dynamics were proved and discussed.
By using ‘history reconstruction method＇, this paper studied the dynamics of two Polytrichum juniperinum populations with and without sporophytes. The population with sporophyte production experienced a dynamic process from increase to stabilization, while that without sporophyte production experienced a process from in- crease to decrease. Before 2003, both the increase rate and the birth rate of two populations decreased continuous- ly, with the death rate showing the tendency from decrease to a continuous increase. The advantages of ‘history reconstruction method＇ in studying population dynamics were proved and discussed.
出处
《应用生态学报》
CAS
CSCD
北大核心
2005年第11期2221-2223,共3页
Chinese Journal of Applied Ecology
基金
国家自然科学基金重点项目(50139020)
东北师范大学青年科学基金资助项目(111373000).
