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Diversity Curves. Oldest diversity curve. Two approaches. Range through. t3. t5. t4. t2. t1. Sampled in bin. t3. t5. t4. t2. t1. Boundary crossers. t3. t5. t4. t2. t1. Two timers. t3. t5. t4. t2. t1. Three timers. t3. t5. t4. t2. t1. Rarefaction.
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Range through t3 t5 t4 t2 t1
Sampled in bin t3 t5 t4 t2 t1
Boundary crossers t3 t5 t4 t2 t1
Two timers t3 t5 t4 t2 t1
Three timers t3 t5 t4 t2 t1
Rarefaction • For discounting the influence of variation in sample size • NOT always appropriate • If some taxa are very common or rare • Where beta diversity is high • Pays no attention to • taxonomic identity