Species Interactions
This type of species interaction benefits both organisms involved
What is mutualism?
Explain the difference between primary and secondary succession.
Secondary succession begins with soil and primary succession does not.
The maximumm population size that an environemnt can support is.
What is the carrying capacity?
What is the difference between exponential and geometric growth?
Exponential growth has overlapping/continuous generations and geometric has discete/non-overlapping generations.
What is the difference between a habitat and a niche?
A habitat is an organisms physical environment. A niche includes its role in the ecosystem and interactions with other species.
This type of species interaction is when one organism benefits and the other is not benefited or harmed
What is commensalism?
A volcanic eruption resulting in newly exposed land is an example of this type of succession
What is primary succession?
The typ eof competition that occurs within a single species.
What is intraspecific competition?
A population of rabbits with non-overlapping generations grows from 50 to 200 rabbits in 5 generations. What is the growth rate?
lamda=1.32
A deer population starts at 100 deer. In a year, 5 deer are born, 10 deer die, 15 deer immigrate to the population, and 10 deer emigrate to a new forest. How many deer are present after the year?
100
The process by which organisms compete for resources
What is competition?
A forest regrowing after a forest fire is an example of what this type of succession.
What is secondary succession?
The process in which species modify their environment to make it more suitable for other species during succession.
What is facilitation?
A fish population is growing logistically. What happens when to the growth rate if N>K?
The population decreases.
This term is the rate of offspring production after one time step
What is fecundity?
A barnacle species expanding its range after a competitor is removed is an example of this concept.
What is competitive release?
The initial species to colonize an area in succession are known as this.
What are pioneer species?
The phenomenon where an ecosystem shifts to an alternative stable state due to environmental or human-induced distubances.
What is a phase shift?
List three reasons a carrying capacity exists.
Resource limits: food, water, shelter, space capacity.
Describe the difference in realized and fundamental niche.
A "fundamental niche" refers to the full range of environmental conditions a species could potentially occupy without competition from other species, while a "realized niche" is the actual niche a species occupies in reality
This mathematical model is used to predict the outcomes of population between species.
What is the lotka-volterra model?
The final stable community that forms at the end of succession is called this.
What is a climax community?
Name an example of an anthropogenic disturbance.
Pollution, deofrestation etc
A population of birds starts at 250 and grows to 2848 in 6 generations. What is the intrinsic growth rate?
r=.405
When is dN/dt positive? When is it negative? When is it 0?
+: N<K
-: N>K
0: N=K