Population Reduction Model for Assessing Species (image) Species360 Share Print E-Mail Caption Underestimation of generation time leads to an underestimation of extinction risk when scientists assess populations of threatened species. Credit Johanna Staerk et al. (2019) Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.