Shared Flashcard Set

Details

ch 55
biology
28
Biology
Undergraduate 1
05/10/2016

Additional Biology Flashcards

 


 

Cards

Term
asymmetric competition
Definition
ecological competition between two species in which one species suffers as much greater fitness decline that the other
Term
batesian mimicry
Definition
a type of mimicry in which a harmless or palatable species resembles a dangerous or poisonous species
Term
character displacement
Definition
the evolutionary tendency for the traits of siilar species that occupy overlapping ranges to change in a way that reduces interspecific competition
Term
climax community
Definition
the stable, final comunity that develops from ecological succesion
Term
competition
Definition
in ecology  the interaction of the species or two individuals trying to use the same limited resource. ay occur between individuals of the same species or different species
Term
competitive exclusion principle
Definition
the principle that two species cannot coexist in the same ecological niche in the same area because one species will outcompete the other
Term
constitutive defense
Definition
a defense trait that is always manifested even in the absence of a predator or pathogen
Term
consumption
Definition
predation or herbivory
Term
disturbance
Definition
in ecology any strong  short-lived disruption to a comunity that changes the distribution of living and/or nonliving resources.
Term
disturbance regime
Definition
the characteristics dissturbances that affect a given ecological community
Term
food web
Definition
The complex network of interactions among species in an ecosystem formed by the transfer of energy and nutrients among trophic levels. Consists of many food chains.
Term
fundamental niche
Definition
The total theoretical range of environmental conditions that a species can tolerate.
Term
herbivory
Definition

 

The practice of eating plant tissues.

Term
inducible defense
Definition

A defensive trait that is manifested only in response to the presence of a consumer (predator or herbivore) or pathogen. 

 

Term
inhibition
Definition
In ecological succession, the phenomenon in which early-arriving species make conditions less favorable for the establishment of certain later-arriving species. 
Term
interspecific competition
Definition
Competition between members of different species for the same limited resource. 
Term
intraspecific competition
Definition
Competition between members of the same species for the same limited resource. 
Term
keystone species
Definition
A species that has an exceptionally great impact on the other species in its ecosystem relative to its abundance.
Term
mimicry
Definition
A phenomenon in which one species has evolved (or learns) to look or sound like another species
Term
mutualism
Definition
A symbiotic relationship between two organisms (mutualists) that benefits both (+/+)
Term
niche differentiation
Definition
The evolutionary change in resource use by competing species that occurs as the result of character displacement.
Term
primary succession
Definition
The gradual colonization of a habitat of bare rock or gravel, usually after an environmental disturbance that removes all soil and previous organisms
Term
realized niche
Definition
The portion of the fundamental niche that a species actually occupies given limiting factors such as competition with other species
Term
secondary succession
Definition
Gradual colonization of a habitat after an environmental disturbance (e.g., fire, windstorm, logging) that removes some or all previous organisms but leaves the soil intact. 
Term
species diversity
Definition
The variety and relative abundance of the species present in a given ecological community.
Term
species richness
Definition
the number of species present in a given ecological community
Term
symmetric competition
Definition
Ecological competition between two species in which both suffer similar declines in fitness. 
Term
tolerance
Definition
In ecological succession, the phenomenon in which early-arriving species do not affect the probability that subsequent species will become established.
Supporting users have an ad free experience!