Study the schematic representation given above and answer the following questions:
a) Identify A in it.
b) Identify D in it.
c) When the population density at time t is N as shown above, write the population density at time t + 1 in the form of an equation using appropriate symbols. [3 marks]
Study the schematic representation given above and answer the following questions:
a) Identify A in it.
b) Identify D in it.
c) When the population density at time t is N as shown above, write the population density at time t + 1 in the form of an equation using appropriate symbols. [3 marks]
a) A is natality which refers to the number of births during a given period in the population that are added to the initial density. [1 mark]
b) D is Emigration, which is the number of individuals of the population who left the habitat and gone elsewhere during the time period under consideration. [1mark]
c) When the population density at time t is N, then the population density at time t + 1 is
N(t+1) =Nt +[(A+C) – (B+D)]
where,
A = Natality
B = Mortality
C = Immigration
D = Emigration [1 mark]
a) A is natality which refers to the number of births during a given period in the population that are added to the initial density. [1 mark]
b) D is Emigration, which is the number of individuals of the population who left the habitat and gone elsewhere during the time period under consideration. [1mark]
c) When the population density at time t is N, then the population density at time t + 1 is
N(t+1) =Nt +[(A+C) – (B+D)]
where,
A = Natality
B = Mortality
C = Immigration
D = Emigration [1 mark]
