Constant probability of capture and survival JollySeber 
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Buckland (1980) discusses a solution to the frequently encountered problem of the JollySeber model, which is that survival and birth rate estimates are found to be impossible (e.g. a negative birth rate). Jolly (1982) presents modifications, which by assuming constant survival and/or captures rates, gives a more parsimonious model, leading to more efficient estimators. Estimates assuming constant survival rates and probability of capture are calculated by selecting Open methods: Const. p and s Jolly Seber from the dropdown menu.
When this option is selected both the full JollySeber and the constant survival and capture probability estimators are calculated.
