Ecosystem Basics
A group of individuals of the same species living in a given area.
What is a population?
Organisms that make their own food using sunlight.
What are producers (autotrophs)?
A measure of the number of species in an area.
What is species richness?
This is a biotic process that removes carbon from the atmosphere.
What is photosynthesis?
A species with a narrow ecological tolerance, that is vulnerable to environmental change.
What is a Specialist species?
The percent of energy transferred between successive tropic levels.
What is 10%?
Island biogeography theory predicts species richness is determined by these two factors.
What are island size and distance from mainland?
What is the atmosphere?
This biome is characterized by permafrost and very short growing seasons
What is a tundra?
Organisms that eat both plants and animals.
What are omnivores?
This terrestrial biome receives the most annual rainfall and has the greatest biodiversity.
What is the Tropical Rainforest
This is Nitrogen's largest reservoir.
What is the atmosphere?
Services like pollination, pest control, and water purification are examples of this type of ecosystem service.
What are regulating services?
The rate of of photosynthesis per unit area per unit time, after accounting for the amount lost due to cellular respiration.
What is Net Primary Productivity (NPP)?
Three primary levels of biodiversity.
What are Genetic, Species, and Habitat?
Freshwaters largest reservoir.
What are Ice Caps and Glaciers?
The process by which ecosystems recover after a disturbance, such as fire or hurricane.
What is ecological succession (Primary)?
Energy not used for growth or reproduction is lost from ecosystems in this form.
What is heat?
A species on which other species depend heavily, and whose removal can cause ecosystem collapse. A species who impact far exceeds its abundance.
What is a keystone species?
This acronym is used to remember the steps and products of the Nitrogen cycle.
What is FixNAAD ANPAN?