Biomes
List the freshwater aquatic biomes.
Ponds, Lakes, Streams, and Rivers
What two cycles are limiting factors for primary productivity?
Nitrogen and Phosphorous
What % of energy moves up the trophic levels?
10%
True or false? Lack of genetic diversity can lead to increased susceptibility to a disturbance.
True
True or false? Multiple species can occupy the same niche as long as it is in their range of tolerance
False-each niche can only be occupied by one organism. Resource partitioning makes it so multiple organism can have similar habitats)
What are the two most important factors the determine the distribution of terrestrial biomes?
Temperature and Precipitation
Which biogeochemical cycle does NOT have an atmospheric component?
Phosphorous
Draw and label a trophic level pyramid.
check drawing
Explain the differences between a specialist species and a generalist species.
Generalist species have a wide range of tolerance, specialist species have a narrow range of tolerance.
What is the difference between primary and secondary succession?
Secondary succession occurs when a community grows from an environment that already has some vegetation.
Draw a rough sketch of a climatograph that represents a desert
What is the "fast carbon cycle"?
Carbon cycling through photosynthesis and respiration
What is the net primary production equation?
GPP-Respiration= NPP
through a random mutation
mutations can then result in traits that better help the individual survive and therefore pass the trait down
Draw and label a tolerance curve. what happens to an individual located towards the outskirts of the curve?
See drawing
The individual is just surviving and will not reproduce or the individual will die.
What factors are important to aquatic biomes?
Velocity- dissolved oxygen
Depth- light penetration
Nutrients- nitrogen and phosphorous
Temperature
Salinity
Carbon- atmosphere and/or ocean
Nitrogen- atmosphere
Phosphorous- rocks and soil
Hydrologic- ocean
Draw a food web between the following animals...
worm, grass, fox, rabbit, grasshopper, bird, squirrel, mountain lion
check drawing
Adaptation: a change or the process of change by which an organism or species becomes better suited to its environment.
adaptations can increase genetic diversity since they are caused by mutations, this changes genetic diversity in an individual and the species to allow it to survive better.
Name the 4 ecosystem services and one example of each
supporting- photosynthesis, nutrient cycles, creating soil, etc
Provisioning- honey, wood, oil, drinking water
Regulating- pollination, flood control, decomposition
Cultural- hiking trails, hunting, fishing
How would changes in climate affect the global distribution of biomes?
It would shift the distribution of biomes.
Name the 5 processes involved in nitrogen cycle. (50 point bonus if you can explain what each processes does)
Fixation- converts atmospheric nitrogen into ammonia and nitrate
Assimilation: the uptake of nitrogen into plants and animals
Ammonification: conversion of nitrogen into ammonia (NH3)
Nitrification: conversion of ammonium (NH4) into nitrate (NO2) and nitrite (NO3)
Denitrification: the conversion of soil nitrogen into atmospheric nitrogen
If the GPP for a patch of forest is 10 kg Carbon /m2 /year, and the amount of carbon dioxide LEAVING the ecosystem is 5 kg Carbon /m2 /year, what is the NPP?
GPP = 10 kg Carbon /m2 /year
R = 5 kg Carbon /m2 /year
GPP – R = NPP = 5 kg Carbon /m2 /year
How do you get high biodiversity in an ecosystem? And why is it important to have high biodiversity?
A high biodiversity ecosystem is caused by having a high number of different species, number of different habitats, and amount of genetic diversity within individuals.
It is important because ecosystems with high biodiversity are less likely to be deeply affected by disruptions and are better able to bounce back.
What increases with each phase of succession?
Biomass