To determine the population growth of the herd of water buffalo, we need to look at both the increases and decreases in the population separately and then find the net change.
1. Calculate the population increase:
The population increases due to births and immigration.
- Birth rate = 35
- Immigration = 4
So, the total population increase is given by:
[tex]\[ \text{Population Increase} = \text{Birth Rate} + \text{Immigration} \][/tex]
[tex]\[ \text{Population Increase} = 35 + 4 = 39 \][/tex]
2. Calculate the population decrease:
The population decreases due to deaths and emigration.
- Death rate = 7
- Emigration = 17
So, the total population decrease is given by:
[tex]\[ \text{Population Decrease} = \text{Death Rate} + \text{Emigration} \][/tex]
[tex]\[ \text{Population Decrease} = 7 + 17 = 24 \][/tex]
3. Calculate the net population growth:
The population growth is the difference between the population increase and the population decrease.
[tex]\[ \text{Population Growth} = \text{Population Increase} - \text{Population Decrease} \][/tex]
[tex]\[ \text{Population Growth} = 39 - 24 = 15 \][/tex]
So, the net population growth of the herd of water buffalo is 15.
In conclusion:
- The population increases by 39.
- The population decreases by 24.
- The population growth (net change) is 15.
