Apes 3.1-3.3 Flashcards
3.1 - 3.2
Population ecology
Study of the processes that affect the distribution & abundance of animal & plant populations
3.1 - 3.2
Specialist
Smaller range of tolerance or narrower ecological niche makes them more prone to extinction
Specfic foods
Less likly to adapt to new changes in enviroment
3.1 - 3.2
Generalist
Larger range of tolerance, broader, niche makes them less prone to extriction
Broad food choice and can adapt easily
3.1 - 3.2
K- selected species
Few offspring, heavy parental care
Reproduce many times
Long lifespan (most offspring survive)
Long time to sexual Maturity
Stable population
Quality
ex human and elephants
3.1 - 3.2
R-selected species
Many offspring, Little to no care
many only reproduce once
Shorter lifespan
Quick to sexual maturity
High variable
Quantity
ex Clown fish (Nemo) Flowers (dandelions)
3.1-3.2
Biotic Potential
Maximum reproductive rate of a population in ideal conditions (no limiting resources)
Isn’t realistic
Biotic Potential
K selected species
Low biotic potential (hard for pop. to change after distrubance)
Less likly to adapt & more likely to go extrict
Biotic Potential
R selected
High biotic potential (more rapid pop. recovery after disturbance)
Higher chance of adapation & lower chance of extinction
3.1-3.2
Logistic Growth
initial rapid growth, then limiting factors limit pop. to K
3.3
What a surviorship curve and how many are there
a line that shows survival rate of a cohort in a pop. from birth to death
3 types
3.3
Type 1
High survivorship early in life due to high parental care
mostly k- selected
ex cows and dogs
3.3
Type 2
Steadily decreasing survivorship throughout life
Between r & k species
ex birds and turtles and rodents
3.3
Type 3
High mortality (low survivorship) early in life due to little to no parental care
mostl k-selected species
ex. insects and fish
