Bio 106 Ecology Questions and Answers well Explained Latest 2024/2025 Update 100% Correct.
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Course
Bio 106 Ecology
Institution
Bio 106 Ecology
Describe the role of predation in community dynamics and evolutionary outcomes including: Predationavoidance adaptations including camouflage, toxicity+warning coloration, Batesian mimicry, masquerade
- Camouflage- Blending into surroundings
Toxicity/warning coloration- Warning predators of bad e...
Bio 106 Ecology
Describe the role of predation in community dynamics and evolutionary outcomes including: Predation-
avoidance adaptations including camouflage, toxicity+warning coloration, Batesian mimicry, masquerade
- Camouflage- Blending into surroundings
Toxicity/warning coloration- Warning predators of bad effects if eaten
Batesian Mimicry- Mimicking a species with bad effects
Masquerade- Look like inedible objects
Who gets harmed, who benefits in each type of interaction? - Mutualism- both benefit
Consumption- one species benefits, other is harmed
Competition- both species harmed, one more than the other
What interactions structure the community? - Mutualism, Consumption, Competition
How do these interactions create an interdependence underlying community structure? - Help
structure the community
What is a niche? - Area the species occupies
What is the difference between fundamental vs. realized niches? - Fundamental niche- All
resources and interactions under ideal conditions
Realized niche- Restricted due to compeition
Distinguish between these special roles that species can play -Dominant vs. Keystone species -
Dominant- most common species
Keystone- plays surprisingly important role given its low abundance
, What are the trophic levels in a food chain/web? - Primary producers, primary consumers,
secondary consumers, tertiary consumers, quaternary consumer
What resources are transferred from one trophic level to the next? - energy and nutrients
Which nutrients can be limiting factors for a community? - CNP
Describe the main sequence of events in the traditional model of primary succession - Producers
are the foundation, consumers arrive as resources become available, species compete
What are the mechanisms by which soil formation occurs? - Mosses and lichens break down rock
and release nutrients into the soil
What is the role of mosses and lichens in the traditional model? - Break down rocks for nutrients
What are the mechanisms by which soil formation occurs? What factors increase nutrients in the
developing soil? - Exposed bare rock, grasses and herbs, fast growing trees, slow growing trees
What is "facilitation" and how does it play out over time? - Facilitation is when a species
interaction benefits at least one species and harms neither, mutualism
What is "degradative succession"? - A succession that occurs on dead organic matter over a
relatively short time (detritovores)
How can insects be used to determine the post-mortem interval of a corpse? - Measuring their
level of maturation
Draw or interpret a graph showing exponential growth of a population - J shaped
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