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Bio 260
Chapter 8
14
Biology
Undergraduate 1
11/10/2009

Additional Biology Flashcards

 


 

Cards

Term
Census
Definition
Complete count of individuals in a population. May be counted from aircraft, yet in areas where vegetation or topography conceals animals it is rare to get a complete count.
Term
Estimates
Definition
May be made on the basis of a statistical sample, can be done by counting inanimate objects (e.g. droppings, nets, and dens) or by counting animals. Sample taken on a plot.
Term
Indices
Definition
A quantitative measure of a population. Compares relative abundance between areas or changes in abundance from one time to another in the same area.
Term
Banding
Definition
1. Determines migratory routes and other information of movements of birds.
2. Banding helps learn more about life history of a species. Determines philopatry.
3. Data from recovered bands serves as a major tool in the analysis of bird population factors. Only a small number of bands are actually recovered.
Term
Conceptual Value
Definition
Population dynamics, why do things work the way they do?
Term
Developmental Value
Definition
Various types of information necessary to construct an accurate model, what are the parameters?
Term
Output Value
Definition
The model may be useful in predicting future courses, What do I want out of it?
Term
Stable Populations
Definition
These populations respond to the carrying capacity before food becomes limiting. K-type Species
Term
Irruptive Populations
Definition
These populations are largely unpredictable. Found in diverse species that range from the Equator to the Boreal Forest. Eruptions usually associated with weather or vegetational changes.
Term
3-4 Year Cycles
Definition
Found in simple ecosystems, occur on all continents that have tundra. R-selected species
Term
Cycle
Definition
A recurring variation of regular timing or phasing and of constant amplitude.
Term
Periodic
Definition
Fluctuations where the phase is constant but the amplitude varies.
Term
Oscillations
Definition
Variations of both phase and amplitude.
Term
9-10 Year Cycles
Definition
Usually found in the Boreal Forest. Key word: Boreal Forest.
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