Titlebook: Topics in Plant Population Biology; Otto T. Solbrig,Subodh Jain,Peter H. Raven Textbook 1979Latest edition Macmillan Publishers Limited 19

使虚弱

Patterns of Juvenile Mortality and Recruitment in Plantsly more rigorous habitats (Bradshaw, 1972). The rapid differentiation of local plant populations implies very high selective coefficients, and much of this selection is seen to take place in the time between seed dispersal and adult reproduction.

Tempor

Competition and Coexistence of Similar Species) that allows coexistence. This approach seems more promising in relating environmental factors to organism constraints, but, without additional experimental manipulation or genetics study, it cannot be demonstrated that the proposed mechanism is in fact operating to produce the species distributions observed in the field.

Counteract

时代

Adaptation from the Perspective of Optimalitylays a surprisingly small role in the origin and maintenance of contemporary adaptive patterns. Finally, I shall summarize some intriguing problems and the prospects for their solution, again emphasizing the peculiarities of plants that will not yield to metaphorical appeals to the ideas of population biology in animals.

Arrhythmia

Self-Help-Group

Mitigate

https://doi.org/10.1007/978-1-349-04627-0biology; population; population biology

Munificent

琐碎

Macmillan Publishers Limited 1979

装入胶囊

George Ledyard Stebbins same year, and a Ph.D. in biology in 1931. At Harvard he worked first with A. L. Fernald on the taxonomy of grasses and the Compositae and then with E. C. Jeffrey, with whom he did his thesis work on the cytology, taxonomy, and evolution of the American species of the genus ..