FOOTNOTES:

[27] _R. L. Downing. Personal correspondence to L. D. Mech, October 2,

1969_.

_Table 4.--Age and sex distribution of deer killed by wolves

and hunters in northeastern Minnesota_

-------:-------------------------------:-------------------------------

: Wolf-killed deer : Hunter-killed deer

Age :---------------------------:---:---------------------------:---

(years): Number of: : : Number of: :

:Males Females Unknown Total: % :Males Females Unknown Total: %

-------:---------------------------:---:---------------------------:---

Fawns 9 13 2 24 17 54 54 4 112 26

1+ 5 7 1 13 9 63 26 1 90 21

2+ 3 8 5 16 11 42 19 2 63 15

3+ 2 4 2 8 6 47 16 1 64 15

4+ 6 3 4 13 9 32 22 1 55 13

5+ 12 9 -- 21 15 15 12 1 28 6

6+ 9 2 1 12 8 3 -- -- 3 --

7+ 12 4 -- 16 11 7 4 -- 11 3

8+ 4 2 -- 6 4 5 1 -- 6 1

9+ 4 2 -- 6 4 1 -- -- 1 --

10+ -- 3 -- 3 2 -- -- -- -- --

11+ -- 1 -- 1 } -- -- -- -- --

12+ -- -- -- -- } 4 -- -- -- -- --

13+ -- 1 -- 1 } -- -- -- -- --

14+ -- 2 -- 2 } -- -- -- -- --

Total 66 61 15 142 100 269 154 10 433 100

-----------------------------------------------------------------------

Mandibles from the 142 wolf-killed deer and 259 hunter-killed deer were

examined closely for abnormal dentition (table 5, figs. 8-10) (Mech _et

al._ 1970) and pathological conditions (table 6), and the lower limbs

of 75 wolf-kills and 126 hunter-kills were also checked for

abnormalities and pathology (table 7, fig. 11). Statistical comparison

showed that the incidence of each condition was significantly higher in

the sample from wolf-killed deer (table 8).

Jaw necrosis found in our specimens was similar to that described by

Murie (1944) for Dall sheep and Mech (1966a) for moose. Generally

animals with this condition are old, and ours were no exception.

[Illustration: _Figure 8.--Deciduous first premolar (arrow), usually

not present in deer, was found in specimen M-31._]

[Illustration: _Figure 9.--A permanent first premolar (arrow) was

discovered in M-8._]

[Illustration: _Figure 10.--An extra set of fourth premolars (arrows)

occurred in specimens M-96._]

[Illustration: _Figure 11.--The jaws and legs of kills were inspected

closely for abnormalities. (Photo courtesy of L. D. Frenzel.)_]

_Table 5.--Abnormalities in the mandibular dentition of deer from the

Superior National Forest, Minnesota_

--------:---:-------:--------:-------:--------------------------------

Specimen: : :Cause of:Side of:

number :Sex:Age[28]: death :jaw[29]: Abnormality

--------:---:-------:--------:-------:--------------------------------

_Years_

M-8 F 3+ Wolves Right P_1 present (fig. 9)

Left Normal; no P_1 present outside

or inside jaw

M-31 F _17 mon._ Wolves Both Deciduous P_1 present (fig. 8)

and permanent P_1 present inside

left ramus; right side not

examined internally

M-45 M _4+_ Wolves Right P_2 rotated 90 deg.

Left P_2 absent

M-52 M 4+ Wolves Right P_2 absent

Left Normal

M-96 F _2+_ Hunters Right 2 permanent P_4s present; both

crooked in orientation (fig. 10)

Left P_2 diagonal; P_3 normal; P_4 below

gumline, pointed posteriorly and

wedged against M_1; appears to have

pushed out original P_4 (fig. 10)

Ecological Studies of the Timber Wolf in Northeastern Minnesota · 第 42 / 69 题