Ecological Archives E093-063-S1

Mark S. Udevitz and Peter J. P Gogan. 2012. Estimating survival rates with time series of standing age-structure data. Ecology 93:726–732.

Mark S. Udevitz
US Geological Survey
Alaska Science Center
4210 University Drive
Anchorage, AK 99508
USA
E-mail: mudevitz@usgs.gov

Peter J. P. Gogsan
US Geological Survey
Northern Rocky Mountain Science Center
2327 University Way, Suite 2
Bozeman, MT 59715
USA

Please be advised that the ESA cannot guarantee the forward migration of proprietary file formats such as Excel (.xls) documents.

SupplementA.xls is an Excel spreadsheet containing 5 sheets with example calculations. The first 4 sheets (labeled Model 1 - Model 4) contain calculations for models considered in APPLICATION TO YELLOWSTONE BISON:

Model 1: Makes no assumptions about equality of survival rates for different age classes.

Model 2: Assumes survival rates are equal for ages 0–1, 2–3, 4–5, 6–7, 8–9, 10–11, 12–13.

Model 3: Assumes survival rates are equal for ages 0–1, 2–3, 4–5, 6–11, 12–13.

Model 4: Assumes survival rates are equal for ages 0–13.

The last sheet (labeled 3 Years) contains calculations for a hypothetical example with 3 age classes and 3 years of data, and no assumptions about equality of survival rates.