Unit 3 ecological interactions Flashcards
Carrying Capacity
the maximum number of organisms that a habitat can provide resources for for a long period of time.
upper limit
drop birthrate and increase deathrate
lower limit
increase birthrate and drop deathrate
density dependent factors
spread of disease
availability of resources
stress
violence
competition
tolerance
stability
the ability of a living system to withstand or recover from externally imposed changes or stresses that are not too severe
Inertia
the ability of a living system to resist being disturbed or altered
constancy
the ability of a living system to maintain a certain size or keep its numbers within certain limits
resilience
the ability of a living system to restore itself close to an original condition after being exposed to an outside disturbance that is not too drastic
symbiosis
a biological relationship in which 2 dissimilar organisms live together in close associations (ex: bird/aligator)
parasitism
a type of symibiosis in which 1 organism gets its nutrients from another organism for long periods of time
a relationship where one organism is harmed and one benefits
+/-
parasite
organism benefitting
host
organism being harmed
commensalism
a type of symbiosis in which 1 organism benefits and the other organism neither benefits or is harmed by the association +/o
(whales and barnacles)
mutualism
a type of symbiosis in which both organisms benefit (ex: bird/alligator) +/+
Predation
A biological interaction where the predator kills and eats the prey
