Unit 5: Chapter 16 Flashcards
Grouping based on evolutionary lineage
Taxonomic affinity
Group that uses the same resource(s)
Guild
Group species that function in similar ways
Functional group
Groups of interacting species that occur at the same place and time
Communities
Taxonomic affinity
Guilds
Functional groups
Subsets of species in communities
Highest trophic level
Quaternary consumers
Lowest trophic level
Producers
Have a first, second, third, and fourth level
Ex. Third level would be secondary consumers (carnivores)
Food web
Food web + competition and mutalism
Interaction web
Number of species in a community
Species richness
Relative abundance of each species in the community
Species evenness
Combination of number and relative abundance of species
Species diversity
Used to determine when sampling area will no longer increase species number
Species accumulation curve
The actual species included in a community
Species Composition
Indirect interaction where by consuming one species another species abundance is affected
Trophic cascade
An organism is helped by a positive interaction between its prey and another organism
Trophic facilitation
Competitive interactions where every species has a negative effect on another
Competitive network
Less ability for one competitor to dominate a community can be caused by
Having more competitors
The effect one has on abundance of another
Interaction strength
Large effect despite low abundance
Keystone species
Large effect due to large size or large abundance
Foundation species
Small or negligible effect on community
Redundant species
Create, modify, maintain or destroy a physical habitat
Ecosystem engineers
