Lecture 10- Chapter 12 Flashcards
1
Q
Apex Animals in Canada
A
- Timberwolves
- Back bears (predatory omnivores)
2
Q
Predations
A
- covers alot of ecological interactions
3
Q
Carnivory
A
- both predator and prey are animals
4
Q
Herbivory
A
- The predator is an animal, prey are plants or algae
5
Q
Parasitism
A
- A predator (a parasite) lives symbiotically on or in the prey (its host) and consumes specific tissues
- Parasite is harming the other animals it is living with
6
Q
How to Explain the Diversity of Interaction
A
- Carnivores
- Herbivores
- Autotroph
7
Q
Predator and Prey
A
- Cycles how predator and prey populations interact with each other
- Cycles and optimal foraging theory
8
Q
Predation Key Concept 1
A
- Most carnivores have broad diets, whereas a majority of herbivores have relatively narrow diets
- Ex. Grizzly bears forge on 266 species
9
Q
Encounter Rate
A
- if low, predators (carnivores) should be generalists
- Optimal foraging and dietary preferences depend on this
10
Q
Handling Time
A
- if prey are easy to find byt handling time is long
- Immobile but less nutritious plants, then predators (herbivores) should be specialists
11
Q
Piscivores
A
- Specalize on fish
- Often carnivores concentrate on whatever prey is most abundant ( which is fish)
- Ex. sharks prey on fish
12
Q
Predation Key Concept 2
A
- Predation results in a wide range of capture and avoidance mechanisms
13
Q
Three Hunting Strategies
A
- carnivores move around to find prey (wolves, sharks)
- others stay put and hunt prey who come near them (some snakes)
- others be clever and set traps
14
Q
Great White Sharks
A
- cover large amounts of area to get large predation gain
15
Q
Adaptions to Escape being Eaten
A
- Size
- Speed
- Armour
