SPECIES RICHNESS WITHIN FAMILIES OF FLOWERING PLANTS
نویسندگان
چکیده
منابع مشابه
Correlates of species richness in North American bat families
Aim A near universal truth in North America is that species richness increases from the Arctic Circle to the Central American tropics. Latitude is regarded as a major explanatory variable in species density, although it is only a surrogate for underlying ecological variables. I aimed to elucidate those underlying ecological variables that are associated with variation in bat species richness ac...
متن کاملExploring the Relationships between Mutation Rates, Life History, Genome Size, Environment, and Species Richness in Flowering Plants.
A new view is emerging of the interplay between mutation at the genomic level, substitution at the population level, and diversification at the lineage level. Many studies have suggested that rate of molecular evolution is linked to rate of diversification, but few have evaluated competing hypotheses. By analyzing sequences from 130 families of angiosperms, we show that variation in the synonym...
متن کاملSusceptibility of Seventy Species of Flowering Plants to X-radiation.
Ten years of study of the effects of x-rays on different species of flowering plants has resulted in a grouping according to ray susceptibility which should be of value, since many investigators are engaged in studying the various ways in which radiation influences living organisms. When sufficient data concerning the morphological and physiological action of x-rays have been collected, it shou...
متن کاملHow many species of flowering plants are there?
We estimate the probable number of flowering plants. First, we apply a model that explicitly incorporates taxonomic effort over time to estimate the number of as-yet-unknown species. Second, we ask taxonomic experts their opinions on how many species are likely to be missing, on a family-by-family basis. The results are broadly comparable. We show that the current number of species should grow ...
متن کاملNeopolyploidy in Flowering Plants
Justin Ramsey1,2 and Douglas W. Schemske3 1Department of Botany, Box 355325, University of Washington, Seattle, Washington 98195-5325; email: [email protected] 2Present address: Department of Botany, University of Guelph, Guelph, Ontario N1G 2W1, Canada; email: [email protected] 3Department of Plant Biology and Kellogg Biological Station, Michigan State University, East Lansing, Michig...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Evolution
سال: 1994
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1994.tb02200.x