influence du climat et de la prédation sur l'utilisation de l'habitat et la ...

68
140 a)
Cl) 120
"C
c:
2, 6
8, 31
19, 111
8, 41
4, 28
5,35
L.
~ 100
o
a.
-o 80
~
"C
Cl)
E 60
:::l
VI
c:
o
~ 40
Cl)
~
o
a. 20
o
O' C
140 b)
? 120 J
Cl)
"C
c:
L. no -
Cl)
~ 1
~ 80 j
o
~ 60 j
Cl)
E
:::l
~ 40 1
o
(.)
L.
~ 20 -
o
a.
o -
3, 18
0'C
Operative temperature (OC)
Figure 4.2 : Power consumed by porcupine mounts exposed to available conditions of
operative tel11perature and placed in non-den l11icrohabitats, Parc National du Bic, Québec,
December to March, 2004-2005. Means for non-den microhabitats are shown as a percentage
of power consumed in "den" (from Table 4.2). Sal11ple sizes are specified above the bars as:
number of days for which data was obtained, total nUl11ber of measurements on those days.
a) In arboreal ("conifer open", "conifer covered" and "deciduous" pooled, white bars) and
terrestrial microhabitats ("ground open" and "ground covered" pooled, black bars).
b) ln open ("conifer open", "deciduous" and "ground open" pooled, white bars) and covered
l11 icrohabitats ("ground covered" and "coniferous covered" pooled, black bars).