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Dog
-eat-
Dog
Madhur Mangalam
…for a species…
ecological factors
minimally required area
food distribution
food density
predation pressure
Schaik & Hooff, 1983
ecological factors
minimally required area
food distribution
food density
predation pressure
feeding strategy
anti- predation strategy
Schaik & Hooff, 1983
behavioral responses
ecological factors
behavioral responses
group characte-ristics
social structure
minimally required area
food distribution
food density
predation pressure
feeding strategy
anti- predation strategy
group cohesion
group size
Schaik & Hooff, 1983
ecological factors
behavioral responses
group characte-ristics
social organization
social structure
minimally required area
food distribution
food density
predation pressure
feeding strategy
anti- predation strategy
group cohesion
group size
group composition
patterns in genetic relatedness
migration patterns
Schaik & Hooff, 1983
ecological factors
behavioral responses
group characte-ristics
social organization
social structure
social organization
minimally required area
food distribution
food density
predation pressure
feeding strategy
anti- predation strategy
group cohesion
group size
group composition
patterns in genetic relatedness
migration patterns
patterns in social behavior
Schaik & Hooff, 1983
ecological factors
behavioral responses
group characte-ristics
social organization
social structure
social organization
minimally required area
food distribution
food density
predation pressure
feeding strategy
anti- predation strategy
group cohesion
group size
group composition
patterns in genetic relatedness
migration patterns
patterns in social behavior
Schaik & Hooff, 1983
…for dogs…
…for dogs…
food distribution and density
behavioral responses
?
…for dogs…
food distribution and densitydistribution
visibility predictability
clustered
scattered
high
low
high
low
behavioral responses
?
…for dogs…
food distribution and densitydistribution
visibility predictability
clustered
scattered
high
low
high
low
aggression
…for dogs…
food distribution and density
pet dogs (P)stray dogs (S)
distribution
visibility predictability
clustered
scattered
high
low
high
low
aggression
…for dogs…
food distribution and density
pet dogs (P)stray dogs (S)
distribution
visibility predictability
clustered
scattered
high
low
high
low
stray* dogs (S*) stray dogs (S)
aggression
…for dogs…
aggression
pet dogs (P)
stray dogs (S)
dominance hierarchy
high
low
linear
egalitarian
…for dogs…
time to open food pack (T)
pet dogs (P)
stray dogs (S)
less
more
…predicts…
…by…
- 15 pet dogs
- 34 stray dogs
-24 stray dogs
-10 stray* dogs
…49 dogs
…by dogs…
…by dogs…
time to open food pack (T)
pet dogs (P)
stray dogs (S)
more
lessnull hypothesis rejected, α<0.05
…by dogs…
time to open food pack (T)
stray* dogs (S*)
stray dogs (S)
x
xnull hypothesis failed to reject, α>0.05
…by dogs…
time to open food pack (T)
females
males
more
lessnull hypothesis rejected, α<0.05
…of dogs…
…of dogs…
aggression
pet dogs (P)
stray dogs (S)
high
low
…of dogs…
aggression
pet dogs (P)
stray dogs (S)
high
low
…of dogs…
aggression
pet dogs (P)
stray dogs (S)
high
low
…absence of ‘foraging optimization’ in pet dogs…
…of dogs…
stray dogs* (S*)
stray dogs (S)
aggression
x
x
…of dogs…
stray dogs* (S*)
stray dogs (S)
aggression
x
x
…problem with the identification or not much difference in resource contexts…
…of dogs…
females
males
more
less
time to open food pack (T)
?
…sexual dimorphism…
Thanks
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