Lecture 3 Flashcards
Stress?
Conditions that cause internal damage (cellular, enzymic, etc), it leads to impaired function.
Stress is not just the environment but also?
How the organism relates to the environment.
W=?
Energy
Conduction?
Heat is transferred from a hotter thing to a cooler thing.
Irradiance?
Radiant energy per unit area.
Convection?
Movement caused inside a fluid by the movement of hotter and less dense material to rise, and cooler and more dense material to sink. It results in the transfer of heat.
Population? (4•)
A population is a group of •individuals of the same species that live in the •same area at the •same time and •interact with one another (interbreeding).
Density independent?
A factor whose effects on birth and death rates are independent of population density (N).
Density dependant factors?
A factor that causes birth, death rates or dispersal due to density of population changes. e.g. immigration or emigration.
Population regulation?
Density dependent factors cause a population to increase when density is low and decrease when density is high.
r(max)?
Per capita rate of increase under ideal conditions.
r(obs)?
Per capita intrinsic rate of increase under actual conditions.
r(obs) = ?
b - d
Depending on b and d, where is k usually held?
When b = d
Dispersal range?
Distance a species can move from an existing population.
