es_100_lecture_6-1

# Are transition matrices transition 1 2 2 3 3 like life

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Unformatted text preview: re Transition matrices Transition 1. 2. 2. 3. 3. Like life tables, they are life stage or age based. Like MUST IDENTIFY CRITICAL STAGES or AGES. Very similar to life table analyses but you Very calculate probability of transitioning between stages/ages. Do not need to follow cohorts. Must know number in each stage at multiple Must time points to get transition probabilities. time - For animals, frequently rely on mark/recapture data For 1. 1. 2. 2. 3. 3. 4. 5. Transitions depend on GROWTH as well as Transitions SURVIVORSHIP. You calculate probability of staying in stage or moving to another stage in staying each interval. Measure per stage fecundity. (presented as a Measure transition to egg or seed stage) Need known # starting individuals in each Need stage. stage. Can project as many time intervals as you Can chose into future chose Has more flexibility than cohort analysis to Has explore sensitivity of vital rates for population growth growth Simplistic plant life history: basic stages THREE stages Seed XX Rosette XX Flowering XX S=seed R=Rosette F=flowering plant From: o: S S R F A SS R 0 F AFS NS A SR A RR 0 x NR NF 0 A RF AFF TRANSITION MATRIX (probabilities) (probabilities) COLUMN MATRIX From: S S R Fl A SS A SR R 0 A RR F AFS 0 NS NSASS x NR NF = NSASR 0 A RF AFF 0 TRANSITION MATRIX COLUMN MATRIX MATRIX From: S S R Fl A SS A SR R 0 A RR F AFS 0 NS NSASS 0 NRARR x NR NF = NSASR 0 A RF AFF 0 NRARF TRANSITION MATR...
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