Wednesday, September 7, 2016 Please add to your table of contents: Complete the bellwork and objective onto evidence #8. Due tomorrow: Biome projects Date Activity Evidence # 9/7/16 Population Ecology 8

Population depends on… Population Density: # of organisms per unit area Spatial Distribution: pattern of spacing of a population Population Ranges: whether or not a species can expand

Populations are affected by … Density-independent factors (abiotic) Density-dependent factors (biotic)

Three factors affect population growth … the number of births (birth rate) the number of deaths (death rate) the number of individuals that enter or leave the population (immigration vs. emigration) **A population can grow when its birthrate is greater than its death rate.

Two types of population growth … Exponential Growth: (J-shaped) Logistic Growth: (S-shaped) Growth stops when the population reaches carrying capacity.

Population growth depends on limiting factors … A limiting factor is a factor that causes population growth to decrease. Examples: water, food source, land, etc

Thursday, September 8, 2016 Please add to your table of contents: Due today: Biome Project! Turn into tray at back of the room! Due tomorrow: Weekly Homework #4 Date Activity Evidence # 9/8/16 Deer/Wolf Graph 9

Today’s Assignment: Read the introduction Calculate the change in population for deer (HINT: Births-deaths) Graph the populations using TWO DIFFERENT colors and include a key Answer analysis questions 1-3 on your worksheet or in your biology notebook DUE TOMORROW!