The number of individuals per unit area
(population) Density
An interaction where one organisms benefits from the relationship but the other is neither helped nor harmed
Commensalism
Species who have the niche of being early colonizers to new ecosystems
Pioneer Species
This is the process of change in the species structure of an ecological community over time. The time scale can be decades (for example, after a wildfire), or even millions of years after a mass extinction.
Ecological Succession
A country with an age structure that looks like this will most likely _________ in population.
Increase
What is the range of the American wood turtle?
Mostly in the northeast US and parts of Canada
Plants affect many nutrient cycles that allow for other life to receive the nutrients they need. Give an example of one
Answers vary - water, photosynthesis, nitrogen from soil; phosphorous from soil; carbon from C02
All the organisms of a particular type living in the same place at the same time is called a _______. An example is a herd of zebra.
Population
The end result of ecological succession is usually a(n)
Climax Community
True/False: Ecosystems that are more diverse are able to recover from disturbance more quickly.
True
The largest number of individuals that an area can support is called its
Carrying capacity
What type of succession is shown going from figure A to figure B?
Secondary
During the age of the dinosaurs, NJ was subtropical and humid. Today it is temperate. What has changed?
the climate
Beavers create damns in rivers which allow for other species to live in the ponds that they create as well as the damns themselves. Beavers are an example of
Keystone Species
According to the climatogram, what is the wettest month in Oaxaca, Mexico?
June
What type of curve is being shown in the image?
Exponential
What type of curve is being shown in the image?
Logistic
Human population growth started during this time period
Industrial Revolution
Which trophic level has the most energy available to it?
Producers (bottom level)
True/False: Climate change can be an ecological disturbance that many ecosystems may not recover from
True
Succession that occurs in an area with NO SOIL
Primary
The ecological role an organism performs in their specific environment is considered the organism's
niche
What is the carrying capacity of the population portrayed in this graph?
About 500
These organisms can break down rocks and create soil through decomposition of their bodies
Lichen
This type of succession that occurs after a forest fire
Secondary