Populations and Human Impacts
Food Webs
Biodiversity and Niches
Ecological Succession
Misc
100
This would increase the number of organisms in a population
What is birth and immigration?
100
This type of organism uses energy to make its own food
What is a producer?
100
This is the a measure of the population size of a species in an ecosystem
What is species abundance?
100
This is an example of secondary succession
What is fires, flood, tornado,or abandoned fields?
100
This is the role of the squid in the food web
What is a secondary consumer?
200
This would decrease the number of organisms in a population
What is death and emigration?
200
This is the difference between a Detritivore and a decomposer in the food web
A decomposer breaks down the food and recycles its nutrients. A Detritivore simply feeds on dead and decaying matter
200
This is the number of different species in an ecosystem
What is species richness?
200
This is an example of primary succession
What is Glacier Retreats, Bare Rock Exposure, Volcano Disruptions & Sand Dunes
200
This is the difference between an r selected and a k selected species
What is r selected species reproduce at an early age, produce many offspring, and do not have parental care while k selected species reproduce later in life, produce few offspring, and invest in parental care?
300
Phosphorous is a nutrient that is often is short supply in freshwater lakes. However, without phosphorous, plant populations can decrease. Phosphorous is an example of a....
What is a limiting factor?
300
This is an example of an abiotic factor and a biotic factor in a marine ecosystem
What is oxygen concentration, temperature, pH, etc for abiotic and fish, coral, starfish, etc for biotic?
300
In this type of dispersion pattern are animals distributed about evenly from each other
What is uniform distribution?
300
A difference between primary and secondary succession is that in secondary succession this is already present
What is soil?
300
This is what would happen if the penguin were removed from the food web
killer whales and seals would decrease and krill would increase
400
This is the type of growth shown in the image below
What is logistic growth?
400
If the producers have 5,000 joules of energy, this is the amount of energy left for the secondary consumers
What are the 50 Joules?
400
This is the reason why biodiversity is important for an ecosystem's health
What is the higher the species richness and abundance the more likely the ecosystem can withstand disturbances?
400
These are characteristics of pioneer species
What is small, grow rapidly, reproduce quickly, and survive with limited resources?
400
This is the population density of 20 Javan Rhinos in 10,000 square miles.
What is .002 Rhinos per square mile? (They are almost extinct)
500
This is an example of a density INDEPENDENT factor
What is pollution or natural disasters?
500
This is the reason why energy does not 'recycle'
What is it is used for metabolism or lost as heat?
500
This is how a niche is different from a trophic level
What is a niche is an organism's role in the ecosystem and its interaction with biotic and abiotic factors, while a trophic level is an organism's feeding relationship or position in a food chain or web?
500
This is an example of a pioneer species
What are lichens and moss?
500
This is the reason why populations will eventually reach logistic growth and what it tells you about the population's birth and death rates
What is it will reach carrying capacity and death rate= birth rate?