Population Size Parasitism & Disease Competition Extreme Climate Human Disturbance Predation

Limits to Growth Limiting Factors Something that causes population growth to decrease Competition Predation Extreme Climate Parasitism & Disease Human Disturbance

Pandas eat bamboo Bamboo forests are being destroyed by humans Panda populations are decreasing What type of limiting factor is this?

Gray wolves feed on deer Human hunters begin hunting deer in the gray wolf range The gray wolf population decreases due to lack of food What type of limiting factor is this?

Density-Dependent Factors A limiting factor that depends on population size (has more of an affect the bigger the population) Competition Predation Parasitism/Disease Why do these affect larger populations?

Density-Independent Factors Factors that affect a population, no matter the size Human Disturbances Extreme Weather

Human Population Growth Turn to p129 in book Fig 5-10 Why does the population increase exponentially in the 1800’s? What is missing from this graph?

Read p128 in Textbook: Does the Gray Wolf Population Need Protection Read p128 in Textbook: Does the Gray Wolf Population Need Protection? Read 2 more handouts on the issue Answer Research & Decide #1 & 2 on p128 in spiral