BIOLOGY 3SS3 Lecture 2: linear.complete
26 Sep 2016
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1. 2 gypsy moths: a pest species that feeds on deciduous trees, introduced to n. america from europe. 150 years ago: capable of wide-scale defoliation. Gypsy moth populations e r a t c e h r e p s e s s a m g g. Moth calculation: researchers studying a gypsy moth population make the following es- timates: The average reproductive female lays 600 eggs. Answer: if 5 are female, we end up with an average of 7. 5 moths. Answer: the model has randomness, to re ect details that we can"t measure in advance, or can"t predict. 2 s n o i l e d n a. Stochastic model s n o i l e d n a. 3 s n o i l e d n a. 1. 3 bacteria: imagine we have some bacteria growing in a big tank, constantly di- viding and dying: They divide (forming two bacteria from one) at a rate of 0. 04/ hr.
