Population Change Rate Calculation Using BIDE Model
Learn how to calculate the rate of change of a population using the BIDE model, which considers birth rate, death rate, immigration, and emigration. Follow a step-by-step guide with examples to understand how these factors impact population growth or decline.
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Presentation Transcript
Learning Intention: Calculate the rate of change of a population using ? = (? + ?) (? + ?) where R = the rate of change of a population, B = birth rate D = death rate I = immigration and E = emigration. Success Criteria: Complete Marine Education 16. BIDE model
Add individuals B Births B D R = (? + ?) (? + ?) Immigration I R Subtract Individuals I E D Death E Emigration
Are you ready? Calculate this!!!! Add individuals B Births R=(20+2)-(20+2) 20 20 Immigration I R= __ Subtract Individuals 2 2 D Death E Emigration
Add individuals B Births ANSWER R=(20+2)-(20+2) 20 20 Immigration I R=0 Subtract Individuals 2 2 D Death True or False? The population is NOT INCREASING OR DECREASING E Emigration
Add individuals B Births ANSWER R=(20+2)-(20+2) 20 20 Immigration I R=0 Subtract Individuals 2 2 D Death True or False? The population is NOT INCREASING OR DECREASING E Emigration
Are you ready? Calculate this!!!! Add individuals B Births 50 20 Immigration I R= __ Subtract Individuals 0 10 D Death E Emigration
Add individuals B Births ANSWER R=(50+10)-(20+0) 50 20 Immigration I R= 40 Subtract Individuals 0 10 D Death True or False? E Emigration The population is INCREASING
Add individuals B Births ANSWER R=(50+10)-(20+0) 50 20 Immigration I R= 40 Subtract Individuals 0 10 D Death True or False? The population is INCREASING E Emigration
Are you ready? Calculate this!!!! Add individuals B Births 10 50 Immigration I R= __ Subtract Individuals 10 0 D Death E Emigration
Add individuals B Births ANSWER R=(10+0)-(50+10) 10 50 Immigration I R = -50 Subtract Individuals 10 0 D Death True or False? E Emigration The population is DECREASING
Add individuals B Births ANSWER R=(10+0)-(50+10) 10 50 Immigration I R = -50 Subtract Individuals 10 0 D Death True or False? The population is DECREASING E Emigration
Learning Intention: Calculate the rate of change of a population using ? = (? + ?) (? + ?) where R = the rate of change of a population, B = birth rate D = death rate I = immigration and E = emigration. Success Criteria: Complete Marine Education 16. BIDE model
