Regulation of Population :
Regulation of Population POPULATION: is a group of organisms of the same species sharing the same habitat. are relatively stable over a long period of time
Fluctuate within narrow limits of time
show dynamic equilibrium POPULATION DENSITY is the number of individuals of the same species in a given area. Population Density
Density Independent Factors :
Density Independent Factors DENSITY DEPENDENT FACTORS affect the population regardless of the population density. Rainfall Temperature
Density Dependent Factors :
Density Dependent Factors DENSITY DEPENDENT FACTORS affect the population depending on it’s density.
Homeostatic Control :
Homeostatic Control
Monitoring Populations :
Monitoring Populations MONITORING
Involves obtaining data on population size and density
Is needed due to increased pressure on the environment
Is needed to preserve certain species Food
North sea fish needs to be monitored so that over fishing does not demolish all stocks. Endangered
Tigers need to be monitored to assess the amount of conservation needed to preserve. Indicator
Lichens need to be monitored to check levels of pollution. Pest
Mosquitoes need to be monitored to control the numbers and spread of disease Raw Material
Forest need to be monitored to maintain the availability of wood