Ecosystem Interactions & Biomes
This form of symbiosis occurs when one species benefits while the other is unaffected.
What is commensalism?
This element does NOT cycle through the atmosphere because it is a stable, insoluble solid.
What is phosphorus?
This diagram shows complex, interconnected feeding relationships and energy pathways throughout an entire ecosystem.
What is a food web?
A drastic and rapid reduction in a population's size, leading to a severe loss of genetic diversity.
What is a population bottleneck?
This type of succession occurs when there is already soil present.
What is secondary succession?
Organisms divide up a shared, limited resource by feeding at different times or locations to avoid competition.
What is resource partitioning?
This cycle includes transpiration, evaporation, condensation, precipitation, runoff, and infiltration.
What is the hydrologic cycle?
As energy moves between trophic levels, only 10% passes on. The other 90% is _____________.
What is used up and/or lost as heat?
Lumber, drinking water, and wild plants are examples of this ecosystem service.
What are provisioning services?
Lichen and mosses are examples of this type of species during primary succession.
What are pioneer species?
This biome has cold temperatures, extremely low precipitation, and a permanent layer of frozen subsoil.
What is the tundra?
During this process, special soil bacteria convert unusable N2 gas into usable ammonia or ammonium.
What is nitrogen fixation?
The total rate at which primary producers capture solar energy via photosynthesis before accounting for cellular respiration.
What is Gross Primary Productivity (GPP)?
Wetlands filter out pollutants from water, forests absorb carbon to mitigate climate change; these are examples of which ecosystem service?
What are regulating services?
Islands with ___ size and ___ proximity will have the highest species richness.
What is a larger size and closer proximity?
This is the main resource provided by marine biomes, due to the large quantity of photosynthetic organisms.
What is oxygen?
This step of the nitrogen cycle relies on anaerobic bacteria to convert nitrate back into nitrogen gas, returning it back into _________________.
What is denitrification AND what is the atmosphere?
What is 10 kcal?
Ms. Rosenstadt really enjoys going for a hike, it allows her to feel connected with nature. The forest is providing which ecosystem service for her in these moments?
What are cultural services?
Sea otters control urchin populations, which helps protect kelp forests. There are usually not that many otters in a given biome (small pop.). They are an example of which species?
What is a keystone species?
This is an aquatic biome that forms where freshwater rivers meet the salty ocean. It is considered to be a _________ aquatic biome.
What is an estuary AND what is marine?
These are the two largest sinks for carbon on Earth.
What are sedimentary rocks (limestone) and ocean sediments?
Solve for GPP if R = 30 and NPP = 60.
What is 90?
Nutrient cycling, primary production, and soil formation are all types of this ecosystem service.
What are supporting services?
Invasive Species will most likely cause the greatest harm to islands with ___ size and ___ proximity to the mainland.
What is small size and close proximity?