Diversity
The variety of biotic and abiotic factors within an ecosystem
Index species (indicator)
An organism whose absence indicates a problem
Monoculture
Only One type of species
Community
A collection of populations of different types of organisms
Interrelationships
Interaction of organisms with one another and their surroundings
Symbiosis
A close relationship between two different types of organisms
Mutualism
A close relationship where both organisms benefit
Commensalism
A close relationship where one organism benefits and the other is unharmed
Parasitism
The close relationship where one organism benefits and other doesn’t and is harmed
Change
Biotic and abiotic factors that continually change due to interactions
Succession
Series of changes in a community (land or aquatic) over time
Adaption
The ability of living organisms to cope with environmental change which then can be passed on to future generations
Diversity index
SCI number( #of runs/#of observations) X #of differently species
Primary Succesion
Occurs where organisms have not grown before. NO SOIL
Secondary Succcesion
Occurs when organisms grow after a major change. ALREADY SOIL!
Stages of Succesion
- Bare land: plant matter absent
- Annual weeds: lichens, moss, dandelions
- Perennial weeds/grasses: herbs, goldenrod
- Shrubs: blueberry, willows
- Young pine/sun loving trees: white birch, red maple, aspen
- Climax Community: mature oak hickory forest
Behavioral
How it acts
Instinct: behavior an animal is born with and does not have to learn
