Equation 12 · Part 1 · Evolutionary Biology and Ecology in Practice: An Advanced Technical Guide
Symbol phi
What this part means
the treats.
Its job in the formula
phi is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol phi→Article meaning
Where the article explains it
Their unified framework, built on the earlier Cormack-Jolly-Seber approach, treats and p as estimable quantities rather than assumed constants, and — critically — provides goodness-of-fit tests to check whether the assumption that all animals of a given class share the same and p is actually defensible for the data in hand.
The passage around this formula
Enough recaptures to separate from p . With too few sessions, and p are not jointly identifiable — a low apparent survival rate is statistically indistinguishable from a low capture rate. Lebreton et al.'s own case studies used designs with enough repeated sessions across enough years to break this confound; a two-session study cannot.
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
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Sources cited in the article section
These citations provide research context; check each source for the exact claim it supports.