50 likes | 179 Views
How Do Populations Grow??. Ojective 5.01 TLW: Investigate and analyze the interrelationships among organisms, populations, communities, and ecosystems. ***Carrying Capacity. Exponential Growth. Occurs when the species in a population reproduce at a constant rate Increase slowly at first
E N D
How Do Populations Grow?? Ojective 5.01 TLW: Investigate and analyze the interrelationships among organisms, populations, communities, and ecosystems. ***Carrying Capacity
Exponential Growth • Occurs when the species in a population reproduce at a constant rate • Increase slowly at first • Over time, population becomes larger and larger • Under ideal conditions, with unlimited resources, a population will grow EXPONENTIALLY! • What letter in the alphabet does this LINE remind you of??
BUT…Does all living organisms have the IDEAL living conditions??
Density-Dependent Factor Competition Predators Parasitism Disease (Virus, Bacteria) Density-Independent Factor Weather Natural Disasters Seasonal Cycles Human Activity What are Limits to Growth??
Carrying Capacity • How many of a particular population a community can handle • What letter in the alphabet does this remind you of ??