Wildcard
Two names for a species that has highest early mortality rate
Type III, R-strategist
What type of survivorship would a mountain lion show?
Type I
Name the three distributions
Clumped, random, uniform
Two things that define a biome
Temperature and precipitation
What is the chemical formula for carbon found in the atmosphere?
CO2
Name three natural carbon sinks
Ocean, plants, soil
Rodent or bird species
What species most commonly form random distributions, and why?
Plants, due to random dispersion of seeds
Where, geographically, on average, would you find biomes with the highest biodiversity?
Near the equator
What is a way that humans have turned a carbon sink into a carbon source?
Burning fossil fuels
Two defining characteristics of a rainforest biome.
High temperatures and high precipitation (which lead to high biodiversity)
Which strategist does better in unstable environments, and why?
They have large numbers of offspring quickly, which increases the chances for some to survive large disturbances
What are two benefits of a clumped distribution?
Protection from predators, cooperative hunting, social needs
Imagine a desert biome and a temperate forest biome. Which would you expect to find more species in, and why?
Temperate forest due to higher precipitation
Overuse of ground water, deforestation leading to increased runoff
Lightning splits atmospheric nitrogen, making it able to be absorbed by bacteria in the soil. This allows plants to absorb nitrogen and grow.
Describe the differences in how energy is allocated to production versus care of offspring for an R-strategist versus a K-strategist.
K-strategists spend most of their energy on offspring care, and R-strategists spend most of their energy on offspring production.
What factors would lead to uniform distributions?
Limited resources, territorial species
Why do polar biomes typically have lower biodiversity?
Cold temperatures
Explain what would happen if nitrogen-fixing bacteria were suddenly removed from soil.
Decreased soil nitrogen, poor plant health
Describe deforestation's impact on both the carbon and the water cycles. Be specific!
Carbon cycle: increased atmospheric CO2 (less trees absorbing it)
Water cycle: increased water runoff (less tree roots absorbing it), decreased groundwater (less infiltration)
Which strategist follows carrying capacity more closely, and why?
K-strategists, because they have few offspring births and deaths, leading to a relatively stable population
What types of species would be more likely to have clumped distributions?
Prey species, species reliant on clumped resources
Why are locations closer to the equator typically warmer?
Uneven solar heating (direct sun rays)
Explain how use of synthetic fertilizers leads to massive fish deaths in nearby marine ecosystems.
Excess nitrogen and phosphorus cause algae overgrowth, leading to bacterial populations flourishing, leading to decreased oxygen, leading to fish death