Chapter 4 Community Ecology Flashcards
Describe competition
Both species are harmed
Individuals compete for same resources
Describe predation
One benefits while other is harmed
Example : bear and fish
Define mutualism
Benefits both species
Can be obligate some species cannot survive with out the other
Example oxpecker and zebra
Describe commensalism
One benefits: other is unaffected
Remora fish and sharks
What are the different types of competition
Intraspecific- competition between same species
Interspecific- completion between different species
What is a niche
Resources a species uses within its habitat and or the role it plays within its habitat
What is the competitive exclusion principal
2 species cannot occupy the same niche
3 ways species can respond to competition
Become extinct
Migrate else where
Adapt to reduce competition
What are some adaptations species have evolved in response to predation?
Cryptic coloration- comouflage
Aposematic coloration- bright warning coloration
Mullerian mimmicry - 2 or more poisonous things resemble each other
Wha is symbiosis
2 species living close to each other can be beneficial or harmful
Whatis a dominant species?
Species that are highly abundant
What is a keystone species why is it important?
Species that play an important role in a community.
What is a community
Populations of many different species living close enough together for potential interaction
What is a disturbance?
Any event that disrupts established patterns of species diversity and abundance
Primary succesion
Occurs where no soil exists when succession begins slow process
