𝔖 Bobbio Scriptorium
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Human impacts on the rates of recent, present, and future bird extinctions

✍ Scribed by Pimm, S.; Raven, P.; Peterson, A.; Sekercioglu, C. H.; Ehrlich, P. R.


Book ID
126471610
Publisher
National Academy of Sciences
Year
2006
Tongue
English
Weight
443 KB
Volume
103
Category
Article
ISSN
0027-8424

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The Latitudinal Gradient in Recent Speci
✍ Weir, J. T.; Schluter, D. πŸ“‚ Article πŸ“… 2007 πŸ› American Association for the Advancement of Scienc 🌐 English βš– 239 KB

Although the tropics harbor greater numbers of species than do temperate zones, it is not known whether the rates of speciation and extinction also follow a latitudinal gradient. By sampling birds and mammals, we found that the distribution of the evolutionary ages of sister speciesβ€”pairs of species