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Presented by:
Sanya Yaseen
4010
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Foraging
Behavior
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 Introduction
 Decision of Foraging
 Factors influencing for Foraging
 Types of Foraging
Contents
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Behavior
“It refers to the activities animals perform
during their lifetime, including locomotion,
feeding, breeding, capture of prey, avoidance
of predator, and social behavior”.
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Foraging Behavior
Finding Processing
Eating Food
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Grizzly bear (Ursus arctos horribilis) mother
and cubs foraging.
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₪ Energetic value
₪ How easy it is to carry?
₪ Its distance from cover
₪ And how these variables interact ?
Decisions For Foraging
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Factors influencing foraging behavior
Learning
Predation
Parasitism
Genetics
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Learning
• An animal consuming new food, or
using a new foraging technique in
response to their dynamic living
environment.
• Observing and learning from other
members of the group ensure that the
younger members of the group learn
what is safe to eat and become
proficient foragers.
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A troop of olive baboons (Papio anubis) foraging . Young
primates learn from elders in their group about proper
foraging
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Genetics
The genes associated with foraging
behavior have been widely studied
in honeybees with reference to the
following; onset of foraging
behavior, task division between
foragers and workers, and bias in
foraging for either pollen or nectar.
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A European honey bee extracts nectar.
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Predation
 Predation refers to the presence of
predators while an animal is
foraging.
 In general, foragers balance the
risk of predation with their needs,
thus deviating from the foraging
behavior that would be expected
in the absence of predators.
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Wolf as Predators of Rabbits
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Parasitism
 Animals might simply avoid food items
that increase their risk of being
parasitized, as when the prey items are
intermediate hosts of parasites.
 Animals might also avoid areas that
would expose them to a high risk of
parasitism.
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Mosquito
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Types of foraging
Group
foraging
Solitary
foraging
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Solitary foraging
• Solitary foraging is when animals find,
capture and consume their prey alone.
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Group Foraging
Group foraging is when animals
find, capture and consume prey in
the presence of other individuals.
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Foraging Strategies
“sit and wait” (ambush predator -
uses primarily visual cues,
movement)
Advantages - expend little energy, not seen
by predators
Disadvantages - how often does food come
along?
“active predators” (hunters - use
visual and olfactory cues)
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Animal behaviour