Ecological Studies of the Timber Wolf in Northeastern MinnesotaMech, L. David
Science
Ecological Studies of the Timber Wolf in Northeastern Minnesota
Mech, L. David
Deer -- Minnesota; Gray wolf -- Behavior -- Minnesota; Gray wolf -- Ecology -- Minnesota
The straight line distances traveled between consecutive weekly
locations (called the "net weekly distances") showed a similar
variation (table 3). The maximum net weekly distance for each wolf
varied from 4.6 miles for 1059 to 49.0 for 1055, with means ranging
from 2.9 to 15.6 miles for the same wolves. No doubt 1059's net weekly
distances were relatively short because her total range and that of her
pack were much smaller than those of the other wolves.
It is difficult to obtain comparable measures of the extent of the
ranges covered by each of the radiotagged wolves because their patterns
of travel varied so much. Thus the figures given in table 5 should be
regarded only as gross indicators of the minimum range of each animal.
The area figures are especially deceiving in the case of 1055, for she
had a horseshoe-shaped range, much of which apparently was not used.
_Table 3.--Straight line distances (miles) between consecutive locations of
radiotagged wolves_
#: _Number_
%: _Percent_
---------------------------------------------------:----------------------------
: : Net weekly
: Net daily distances : distances
:----------------------------------------------:----------------------------
: : : : :Mean net : : : :
: : : : :distance : : : :
: Days :Days no : Days :Mean net:per day : :Weeks:Mean net:
Wolf: data : net :movement:distance:excluding :Range:data :distance: Range
# :obtained:movement: :per day :days of no: : :per week:
: : : : :movement : : : :
:--------:--------:--------:--------:----------:-----:-----:--------:-------
: # : # % : # % : Miles : Miles :Miles: # : Miles : Miles
1051 54 13 24 41 76 2.0 2.6 0.0-12.0 22 12.7 1.0-46.0
1053 37 20 54 17 46 1.0 2.1 0.0-5.0 23 6.3 0.0-23.6
1055 46 7 15 39 85 2.9 3.6 0.0-12.8 21 15.6 1.7-49.0
1057 29 11 38 18 62 1.0 1.5 0.0-4.5 15 4.6 0.0-31.0
1059 26 1 4 25 96 2.5 2.6 0.0-5.6 18 2.9 0.0-4.6
----:--------:--------:--------:--------:----------:-----:-----:--------:-------
Nevertheless, one major piece of information is obvious from the
figures: 1059's pack of five wolves had a much smaller range than any
of the other uninjured animals--approximately 43 square miles when
figured by the minimum-area method (Mohr 1947). The next smallest range
was that of 1051 (excluding the area of his later dispersal--see
below), which was some seven times the size of the pack's range.
_Table 4.--Straight line distances (miles) traveled between consecutive
days ("net daily distance") by radiotagged wolves in northeastern
Minnesota during February 1969_
Public-domain text, read in full here on John Shaqi.
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