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Population Ecology
Bio
| Question | Answer |
|---|---|
| Community Ecology | studies the interactions between members of a community |
| Community Interactions | relationship between 2 or more organisms in a community |
| 2 types of interactions | Intraspecific and Interspecific |
| Intraspecific | organisms of the same species |
| Interspecific | organisms of different species |
| 4 types of primary community interactions | Competition , Consumption , Mutualism , Commensalism |
| Competition | when two or more organisms compete directly or indirectly for the same limited vital resource |
| Competeting for resources always | lowers fitness |
| Niche | a species ecological role |
| Competitive Exclusion | two species with completely overlapping niches can not permanently coexist in the same area |
| Resource Partioning | when a species avoid competitive exclusion by changing its niche |
| Fundamental Niche | the full theoretical niche species could potentially occupy |
| Realized Niche | smaller portion of fundamental niche a species actually occupies |
| Character Displacement | the evolution of new traits between competing species to reduce competition |
| Coevolution | two or more species interacting species constantly evolving in response to each other |
| 3 types of exploitation | Predation, Herbivory , Parasitisum |
| Predation | when one organisms kills another |
| Behavioral Adaptation | |
| Aposematic Coloration | warning coloration , bright colors signal that the animal is unpalatable |
| Mimicry | imitating another animal, plant or inanimate Object |
| Two types of mimicry | Batesian and Mullerian Mimicry |
| Batesian Mimicry | when a harmless species mimics a harmful one |
| Mullerian Mimicry | when two or more harmful/unpalatable species share a similar coloration |
| Herbivory | when an organism consumes plants, algae, or photosynthetic bacteria |
| Parasitoid | lays eggs in a host , larvae feed on host when they hatch and is usually fatal to the host |
| Ectoparasite | lives outside the host |
| Endoparasite | lives inside the host |
| Species Richness | total number of different species |
| Relative Abundance | proportion of each species in relation to ALL indivduals |
| Community structure | the make u[p of a community |
| Higher Species diversity | leads to higher productivity and stability of communities |
| Foundation Species | has strong community wide effects due to its LARGE biomass |
| Keystone Species | has low biomass but plays a key ecological role that's disproportionate to its abundance |
| Ecosystem Engineer | influence a community by significantly altering its physical environment |
| Ecological Succession | gradual process by which a community's structure changes over time |
| Climax Community | the final most stable stage of ecological succession |
| Primary Succession | when organisms colonize a currently uninhabited area with no soil |
| Pioneer Species | the first species to colonize during primary succession |
| Secondary Succession | when a community recovers after a disturbance that leaves the soil intact |
Created by:
timicia