This is a measure of the NUMBER of different species present in a habitat.
What is species diversity?
This group of organisms carries out photosynthesis and supports food webs.
What are producers?
What is exponential growth?
This group of winged insects is more populous (moths or butterflies)
What are moths?
This rodent eats tree bark and defends itself with quills.
What is the porcupine?
This is a comparison of the relative number of individuals of each different observed species in a habitat.
What is species richness?
These groups of organisms are heterotrophic, they obtain energy from the food they eat.
What are primary and secondary consumers?
What is logistic population growth?
This important ecological function is performed by moths
This tiny mustelid changes to white in the winter
What is the ermine?
What is the vertical structure of a forest?
Only a small percentage of the energy stored at a trophic level is passed on to the next.
What is a density independent limitation?
What is feathery?
This rodent looks like a beaver, but is much smaller and distinguishable by its rat-like tail.
What is a muskrat?
What are forest services?
Recreation and forest products like timber or paper.
This is how most of the energy from a trophic level is lost.
What is the release of heat?
These are density dependent factors that can limit a population's growth.
What are disease, predation, and competition?
This is the most common maple tree in the state of Maine.
What is the red maple?
This large herbivore, while common in southern Maine, is actually declining in the northern part of Maine.
What is the white-tailed deer?
What is a forest function?
What is recycling carbon and recharging ground water?
A group of individuals from different species living together
This bounds logistic population growth
What is the carrying capacity?
This maple tree is considered invasive due to its rapid ability to spread into a forest
What is the Norway maple?
This large feline is found in northern Maine's dense coniferous forests, feeding on snowshoe hares.
What is the Canada lynx?