define community - Answers -group of different species within a set space that interact and impart
change onto each other
-incorporates a series of different population
define community ecology - Answers study of how the different species within a community interact to
create a functional existence
what is tolerance range - Answers - a species will spread itself out within a given space according to its
specific tolerance rage
what dictates tolerance range - Answers -life cycle characteristics
-interactions with other species
-personal abilities to survive in certain abiotic conditions
tolerance range defines - Answers the species compliment of a community
sometimes different communities can be distinguished by sharp division due to - Answers mostly major
changes in biotic or abiotic environment
ecotone - Answers the interface between communities
why is it more likely the divide between communities is not sharp - Answers -caused by gradient
changes in the environment
-results in the bleeding together of different communities
ecological niche - Answers -the role of a particular species within a community
-incorporates all biotic and abiotic considerations
examples of ecological niche - Answers -habitat
-food sources
-predator/prey
-etc
fundamental niche - Answers -the potential ecological niche that an organism could inhabitat if no
restricting species were present
-based solely on abiotic factors of the space provided
, realized niche - Answers -the true ecological niche that an organism settles for within a community of
interacting species
-takes into account biotic factors such as competition and predation
types of ecological interactions - Answers -competition
-mutualism
-predation/parasitism
-commensalism
-amensalism
effects of competition - Answers does harm to both parties
effects of mutualism - Answers benefits both parties
effects of predation/parasitism - Answers does harm to one and benefit the other
effects of commensalism - Answers benefits one while other is unaffected
effect of amensalism - Answers harms one while the other is unaffected
define competition - Answers when two or more organisms contend for resources including food,
shelter, water, space, etc.
two forms of competition - Answers -interspecific
-intraspecific
interspecific competition - Answers occurs between population
intraspecific competition - Answers occurs within a population
consumptive competitions - Answers organisms compete for the same nutrients
example of competition - Answers -interconnecting roots from multiple trees compete for nutrient
uptake
-controlled experiment done by Joseph Connell to ascertain the reason for
barnacle dispersion at the water front
competitor exclusion principle - Answers -two species cannot share the same niche for an indefinite
amount of time
-eventually one will force the other to adopt a new niche or die