(1) F Flashcards
0
Q
Death rate calc & definition
A
No of deaths per year/
Tot pop in same year x 1000
1
Q
Birth rate calc & definition
A
No of births per year/
Tot pop in same year x 1000
2
Q
Migration
A
MM; 1 ind moves from 1 pop to other
3
Q
Emigration
A
Leave pop
4
Q
Immigration
A
Join pop
5
Q
Pop growth (calc)
A
(BIRTH + IM) - (Death + EMI)
6
Q
Factors affecting BR
A
-£ = + BR
7
Q
Factors affecting DR
A
Age profile ; + OLD = higher DR
LE @ birth; +ED = live longer than LED
+ food = low DR
8
Q
Demographic transition
A
Short LE & High BR –>
Long LE & Low BR
9
Q
Age population pyramid
A
Shows the age & gender profile of pop
10
Q
Stable population
A
BR & DR; balance = no change in pop size
11
Q
Increasing population
A
High BR
Less old people
LEDs
12
Q
Decreasing population
A
Low BR
More elderly
+ED
13
Q
AVG LE
A
Age which 50% pop are still alive
From survival curve
