"39, 3 June 2010 (UTC)

 Deleted speculation reference in the wings 

""This raises concerns over the connection between rapid global temperature changes and the possibility of population extinction."" I'm waiting for V. to format the reference from this source: Proc. Nati. Acad. Sci. USA Vol. 91, pp. 7487-7490, August 1994 Population Biology Climate change and temperature-dependent sex determination in reptiles (eticon/population demography/rate of evolutin/sex ratio/turtles)FREDRIC J. JANZEN* Department of Ecology and Evolution, University of Chicago, Chicago, IL 60637 Communicated by Gordon H. Orians, April 29, 1994 (received for review January 3, 1994) [].

I suggest the connection between the concern over global warming and extinction be returned to article based on this passage:

The causal influence of annual variation in climatic temperature on cohort sex ratios in this population of painted turtles serves as a clear empirical example of the biological impact portended by rapid global temperature change. This study demonstrates that the demography of populations of species with temperature-dependent sex determination may be directly sensitive even to modest deviations in the local thermal environment. These results are entirely consistent with earlier work on a nesting beach of endangered loggerhead sea turtles (Caretta caretta), wherein 87-99% of hatchlings from the rookery in each of 3 years were females because sand temperatures at nest level were high (39). If such strongly female-biased cohorts lead to highly skewed adult sex ratios, then the probability of population extinction may be greatly enhanced.  
It has been referenced and the ""speculation"" was restored.  (talk contribs count email) 15:"