d2 Flashcards
interspecific
competition between different species
intraspecific
competition within same species
interference competition
physical fighting over resources
exploitative competition
exploiting shared resources
parasitism
one benefits one is harmed
commensalism
one benefits one unaffected
mututalism
both benefit
passive defense
hiding
active defense
fleeing or fighting
Defence mech - Morphological
structural, where it could make it harder to be found or eating ex. thorns camoflauge
Defence Mech - Chemical
bad tasting or toxic ex.skunks or butterflys
defense mech- mimicry
organsims that mimic another for survival
defense mach - warning
warning colouration that warns predators
Succession
predictable and gradual changes in the vegetation of a community.
succession starts with
Pioneer Community (first organisms to colonize area), progresses toward a Climax Community (a stable, mature community).
pioneer community
first biotic community to appear during a succession,ex Bacteria, moss, fungi
role of pioneer community
transform environment by (e.g., breaking down rocks into soil).
Prepare the area for other species to thrive.
primary succession
on new land with no soil ex. new volcanic land, sand dunes, bare rock
primary succession processs
pioneer species grow and break down things like rock which form soil over time allowing ecosystems to grow
secondary succession
where a community was disturbed but theres still soil ex. after a forest fire
secondary succession process
regrowth happens more quickly than primary and gradually recovers
climax community
final stable stage of succession, balanced ecosystem
