Stochastic modeling of phylogenies raises five questions that have received varying levels of attention from quantitatively inclined biologists. 1) How large do we expect (from the model) the ration of maximum historical diversity to current diversity to be? 2) From a correct phylogeny of the extant species of a clade, what can we deduce about past speciation and extinction rates? 3) What proportion of extant species are in fact descendants of still-extant ancestral species, and how does this compare with predictions od models? 4) When one moves from trees on species to trees on sets of species (whether traditional higher order taxa or clades from PhyloCode), does one expect trees to become more unbiased as a purely logical consequence of tree structure, without signifying any real biological phenomenon? 5) How do we expect that fluctuation rates for counts of higher order taxa should compare with fluctuation rates for number of species? WE present a mathematician's view based on an oversimplified modeling framework in which all these questions can be studied coherently.
Effects of growth rate, size, and light availability on tree survival across life stages: a demographic analysis accounting for missing values and small sample sizes
Hierarchical Conditioning of Diffusion Models Using Tree-of-Life for Studying Species Evolution
Virginia Tech(弗吉尼亚理工大学);Oak Ridge National Laboratory(橡树岭国家实验室);University of California, Irvine(加利福尼亚大学欧文分校);Tulane University(杜兰大学);Battelle(巴特尔公司);Duke University(杜克大学);University of North Carolina at Chapel Hill(北卡罗来纳大学教堂山分校);The Ohio State University(俄亥俄州立大学);Rensselaer Polytechnic Institute(伦斯勒理工学院)