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(a)
(b)
250
0.8
Fig. 12.8
Eviction in
meerkats. Evicted
females (a) show
higher levels of
glucocorticoid
adrenhal hormone
metabolites in their
fecal samples, (b)
have higher
abortion rates and
(c) have lower
conception rates.
From Young et al .
(2006). (d) The
litters of dominant
females (SF) had
lower survival rates
when one or more
of the subordinate
females in the
group was
pregnant when the
litter was born.
From Young and
Clutton-Brock
(2006). With
permission of the
Royal Society.
Photograph shows
a dominant pinning
down a
subordinate. Photo
© Andrew Young.
0.7
200
0.6
0.5
150
0.4
100
0.3
0.2
50
0.1
0
0
Home
Evicted
Home
Evicted
(d)
(c)
0.4
100
80
0.3
60
0.2
40
0.1
20
0.0
0
Home
Evicted
no pregs
SF preg
Pregnancy status of subordinate females
on the day the litter was born
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