Math (Midterm)

Question 1

Growth Rate

Answer 1

Growth rate (r) = ((incoming – outcoming)/sample size) x 100

Question 2

Rate of Natural Increase

Answer 2

RNI (r) = ((births – deaths)/sample size) x 100

Question 3

Doubling Time

Answer 3

Td = 70/growth rate (rule of 70)

Question 4

Population Growth Rate

Answer 4

r(Growth Rate) = (b – d) + (i – e)

Question 5

Simpson’s Biodiversity Index

Answer 5

(n/N)^2
* n = total # of indiv of a single sp.
* N = total # of indiv of all sp

Question 6

Simson’s Index of Diversity

Answer 6

SIMPSON’S INDEX OF DIVERSITY: (1 - D)
* BETW. 0 AND 1 (0 = no diversity, 1= infinite diversity).
* SIMPSON’S RECIPROCAL INDEX: (1/D) is # ≥ 1 (the higher the
diversity, the greater the value)