Chapter 4 - Ecosystems and Communities

+ Examples and Biomes

Terms in this set (...)

The day to day condition of the Earth's Atmosphere, including temp., precipitation, and other factors.
average year-to-year conditions in an area over long periods of time
greenhouse effect
process in which carbon dioxide, methane, and water vapor trap sunlight energy in Earth's atmosphere as heat
where an organism lives including the biotic and abiotic factors that affect it
full range of physical and biological conditions in which an organism lives and the way in which the organism uses them.
refers to any necessity of life, such as water, nutrients, light, food, or space
competitive exclusion principle
states that no two species can occupy the same niche in the same habitat at the same time
one organism (predator) captures and feeds on another organism (prey)
An interaction in which herbivore feeds on producers (plants)
keystone species
single species that is not usually abundant in a community yet exerts strong control on the surface of a community
relationship in which two species live close together
Both species benefit from each other
relationships in which one organism lives inside or on another organism and harms it
A relationship in which one organism benefits and the other is neither helped nor harmed
Ecological succession
a series of more or less predictable changes that occur in a community following a disturbance
Primary succession
succession that begins in an area with no remnants of an older community
Pioneer species
the first species to colonize barren areas during succession
Secondary succession
type of succession that occurs in an area that was only partially destroyed by disturbances