Vocab
A group of organisms with shared characteristics that can successfully interbreed
Species
One organism benefits, one is harmed
Parasitism
The type of growth a community or population might see with access to unlimited resources and few predators
Exponential Growth
groups of ecosystems with similar communities due to similar abiotic conditions and convergent evolution
Biome
A group of the same species in the same location at the same time (who often interbreed)
Population
Both organisms benefit.
Examples: root nodules in Fabaceae (legume family), mycorrhizae in Orchidaceae (orchid family) and zooxanthellae in hard corals
Mutualism
The shape of the curve seen when a population grows and hits a carry capacity
Sigmoid/ Logisitic (S- Shaped)
The concept supporting that a community's population is controlled by the Apex Predator
Top-Down population control
The maximum number of organisms in a population that an ecosystem can support without significant damage or degradation
Carrying Capacity
When prairie dogs communicate with one another to warn of a predator (hint: think inter-/ intraspecific competition/ cooperation)
Intraspecific Cooperation
Method of estimating population for sessile organisms
Random Quadrat Sampling
An organism's range of tolerance is influenced by its ______________ to abiotic factors
Adaptations
Factors that influence population size and are affected by the number of organisms in a given area
Density- Dependent Factors
An interaction with a contaminating agent, such as bacteria, that may affect the species interacting with the contaminant
Pathogenicity
The following assumptions apply to what concept we modeled?
There is no immigration or emigration of animals
Birth rates and death rates are constant
The sampling / marking doesn’t affect survival chances of the organisms
The first sample has time to spread out and mix with the whole population
There is an equal chance of trapping each organism
Lincoln Index/ Capture - mark - release - recapture
The mode of nutrition of algae and some prokaryotes
photosynthesis
When plants secrete chemicals to inhibit growth or harm other plants nearby, giving the plant a competitive advantage
Allelopathy
The effect antibiotic secreting organisms have on the organisms around them
competitive advantage; death of other organisms; (maybe positive effects like antibiotic production for human consumption)
Lincoln Index Equation
P (population) = N1 x N2/ R
OR
P = M x N/R
A domain of life known for living in extreme environments and varied energy production
Archaea