BIOLOGY 3SS3 Study Guide - Midterm Guide: Semelparity And Iteroparity, Unit, Carrying Capacity
16 Mar 2021
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Exponential decline decline is proportional to size, declines more and more slowly (on a linear scale) Predation comparison: a 500-lb lion is attacking an 1000-lb buffalo. Is this analogous to a 15-lb red fox attacking: a 30-lb beaver (twice as heavy), or, a 515-lb elk (500 lbs heavier), likely the beaver an elk probably wouldn"t even notice if a fox attacked it! Different scales provide different ways of looking at the same data, both equally valid. Advantages of arithmetic view: when there is no natural zero (or equivalent) often the case for time or geography, when zeros (or negative numbers) can occur, when we are interested in adding things up. Advantages of geometric view: when comparing physical quantities, or quantities with natural units (weight, population, when comparing proportionally. Scales in pop"n biology: linear looks at differences at pop"n scale, log looks at differences at the individual scale (per capita)
