However,in less than20years population size waslessthan that predicted byAfter colonizing,thethe exponential modelcollared dove populationsuggesting thatpopulationof GreatBritaingrewgrowth had slowed.exponentially250.000200.000150.000100.000Exponential50.0007growth0S19551960196519701975Collared doveYearFIGURE9.6Exponential growthof the collared dove population ofGreatBritain(datafromHengeveld1988)
Collared dove
ECOLOGYCONPZSANDAPPLICATIOASPOPULATIONGROWIRAsresourcesdepleted,populationsgrowth rate slows and eventually stops;this is known as logistic population growth
❖ As resources depleted, populations growth rate slows and eventually stops; this is known as logistic population growth