Population Dynamics
Disruptions and Succession
Analyzing Data
Biodiversity and invasive species
Trivia
100
What is the definition of a population?
The number of members of a species living in the same area
100
What causes ecological succession to occur?
Disturbances in the ecosystem
100
The left half of this graph represents ___________, while the right half represents ___________.
left-males, right-females
100
What is an invasive species?
A non-native species added to an area
100
What is the largest ocean on Earth?
The Pacific Ocean
200
Define carrying capacity and name one limiting resource that can determine the carrying capacity of a population?
Carrying capacity is the maximum population of a certain species that can be sustained by an ecosystem's resources. Limiting resources would be food, water, shelter...
200
Ecosystems are composed of ______ and _______ factors.
Abiotic and biotic
200
Which species would you expect to have fewer offspring, but a higher likelihood of surviving into adulthood?
Type 1
200
What do we use to show complex feeding relationships within a community?
Food Web
200
What is the only edible food that doesn't ever go bad?
Honey
300
If you were to look at the fertility rate of a population, what are you evaluating?
The number of offspring produced
300
If a forest fire occurs in an area, what kind of succession occurs?
Secondary
300
Exponential growth graphs show that a population is increasing at a ____________ RATE.
constant
300
In the food web above, which organisms would be considered secondary consumers?
The lynx, goshawk, weasel and great horned owl
300
What year was King's Ridge founded?
2001
400
A flock of geese are traveling together when a large storm hits, killing off 3 of the geese. Is weather a density-dependent or density-independent factor?
Density-independent (doesn't matter how dense the population is)
400
What is a pioneer species? Give one example.
A pioneer species is the first species to colonize an ecosystem after a disruptive event. An example would be grasses
400
Evaluate the type 3 line on this graph. How many offspring would you expect an individual of this species to produce? What happens to their chance of survival as they get older?
In a type 3 curve, a large number of offspring are produced, but only a few make it to adulthood. Most that make it to adulthood will live to an old age.
400
Which kind of symbiotic relationship involved one species benefiting from a partnership without benefiting or harming the other?
Commensalism
400
The quote "if you're not first, you're last!" comes from what movie?
Talladega Nights
500
Polar bears have an average life expectancy of 15-18 years, and typically only have 2-3 cubs at a time. Polar bear cubs will stay with their mothers until they are 2.5-3 years old.
Are polar bears a k-strategist species or a r-strategist species?
K-strategist
500
What kind of succession begins in an area without soil? What is an example of a disruption that might cause this?
Primary succession, a volcanic eruption
500
Using your whiteboards, draw an exponential graph. Then alter your graph to demonstrate the carrying capacity of the species. Make sure your graph is labeled!
500
Why can invasive species populations increase so quickly?
Lack of predators, abundance of food, ideal conditions
500
Nearly all fossils are preserved in what type of rock?
Sedimentary
600
What is the difference between Allopatric and Sympatric speciation?
Allopatric (away) is geographic separation, while sympatric occurs in the same geographic area
600
A heard of elk wanders into a field where hunters are waiting. 3 elk are killed by the hunters.
Is this a density dependent or density independent factor?
Density-dependent, the factor has an increased effect as the population increases.
600
Evaluate the graphs and tell me, which country's population will have declined if it is measured again in 10 years?
Japan, they have a much larger population of older adults compared to children
600
What is a keystone species? Give an example.
A species that has a large impact on their ecosystem despite their small population size. Example: wolves in yellowstone
600
Which author wrote the book To Kill a Mockingbird?
Harper Lee