F Flashcards
Facultative aerobic bacteria
Bacteria that can switch from aerobic to anaerobic and back as env conditions change
Feedback loop
Where a transformation or action in a system impacts in other parts of the system and these impacts then produce and effect on (or feedback to) the system in either a positive manner (enhancing the first action) or a negative manner (halting the first action).
Fidelity
Accuracy or exactness with which something is reproduced; how closely a model corresponds to the system it represents.
Finite rate of population change
Measures of the change in population size from one point to the next. The values of the rates of change are determined by the values of fecundity and survival (in closed pops).
Fecundity
Meaning fertility and the ability to produce abundant and healthy growth or offspring.
Fire climax
Species and who,e communities that cannot persist unless fire occurs with a certain minimum frequency.
Fitness
The relative ability of an organism to survive and leave offspring that themselves survive and leave offspring. Sometimes only one of more component of fitness can be measured.
Flow
Transfer of energy or material from one to another and one place to another.
Flux
A flow or transfer of material or energy between different system components.
Foliar projective cover FPC
The proportion of ground are totally covered by leaves.
Forbs
Broad-leafed herbs living in grasslands.
Forcing factors
External drivers from outside a system that have an effect on the system.
Forest-tundra zone
A zone comprising scattered areas of trees or krummholz extending for 100-400 km from closed conifer forest to the tree line bordering treeless tundra.
Function
A variable quantity that depends on another variable; a consequence.
Functional group
In ecology, functional groups are collections of organisms based on morphological, physiological, behaviour, biochemical or env responses or on tropic criteria, ie they are linked by the similar role they play within an ecosystem.
