David Mech, PhD (Former Employee)
Science and Products
Filter Total Items: 405
Reproductive activity in nine- and ten-month-old wolves Reproductive activity in nine- and ten-month-old wolves
No abstract available.
Authors
D.C. Medjo, L.D. Mech
White-tailed deer migration and its role in wolf predation White-tailed deer migration and its role in wolf predation
Seventeen white-tailed deer (Odocoileus virginianus) were radio-tagged in winter yards and tracked for up to 17 months each (881 locations) from January 1973 through August 1974 in the central Superior National Forest of NE Minnesota following a drastic decline in deer numbers. Ten vyolves (Canis lupus) from 7 packs in the same area were radiotracked before and/or during the same period...
Authors
R.L. Hoskinson, L.D. Mech
Disproportionate sex ratios of wolf pups Disproportionate sex ratios of wolf pups
Males comprised 66 percent of wild wolf (Canis lupus) pups from a saturated, high-density wolf range in northeastern Minnesota, possibly reflecting disproportionate conception of males. Packs from areas of lower wolf density in other areas of Minnesota had equal sex ratios of pups or a disproportionate number of female pups. Captive wolves showed a slight preponderance of male pups.
Authors
L.D. Mech
Status of the wolf in Michigan, 1973 Status of the wolf in Michigan, 1973
Wolf (Canis lupus) numbers in Michigan's Upper Peninsula declined from an estimated 45-50 animals in the mid-1950s to near extinction in 1973, probably because of overharvesting through the bounty system. Sporadic breeding and occasional immigration of wolves from Ontario and Minnesota are postulated to be the factors tending to maintain the present population at the level of perhaps six
Authors
J. Hendrickson, W. L. Robinson
Weights, growth, and survival of timber wolf pups in Minnesota Weights, growth, and survival of timber wolf pups in Minnesota
Weights, growth rates, canine tooth lengths, and survival data were obtained from 73 wild wolf (Canis lupus) pups that were 8 to 28 weeks old when live-trapped in three areas of northern Minnesota from 1969 to 1972. Relative weights of wild pups are expressed as percentages of a standard weight curve based on data from captive pups of similar age. These relative weights varied greatly...
Authors
V. Van Ballenberghe, L.D. Mech
Blood analyses of wolf pups and their ecological and metabolic interpretation Blood analyses of wolf pups and their ecological and metabolic interpretation
Blood samples were obtained from 32 wolf (Canis lupus) pups live-trapped over a three-year period in northern Minnesota. The results of 21 laboratory analyses of hematology and blood chemistry are tabulated and analyzed in terms of study area, age, sex, and year of collection. Mean values are compared to those reported for dogs in the same age group. The numerous differences between dog...
Authors
U.S. Seal, L.D. Mech, V. Van Ballenberghe
Current techniques in the study of elusive wilderness carnivores Current techniques in the study of elusive wilderness carnivores
No abstract available.
Authors
L.D. Mech
Scent-marking in wolves Scent-marking in wolves
No abstract available.
Authors
R.P. Peters, L.D. Mech
Hunting behavior in two similar species of social canids Hunting behavior in two similar species of social canids
No abstract available.
Authors
L.D. Mech
An experimental translocation of the eastern timber wolf An experimental translocation of the eastern timber wolf
No abstract available.
Authors
T.F. Weise, W. L. Robinson, R.A. Hook, L.D. Mech
Science and Products
Filter Total Items: 405
Reproductive activity in nine- and ten-month-old wolves Reproductive activity in nine- and ten-month-old wolves
No abstract available.
Authors
D.C. Medjo, L.D. Mech
White-tailed deer migration and its role in wolf predation White-tailed deer migration and its role in wolf predation
Seventeen white-tailed deer (Odocoileus virginianus) were radio-tagged in winter yards and tracked for up to 17 months each (881 locations) from January 1973 through August 1974 in the central Superior National Forest of NE Minnesota following a drastic decline in deer numbers. Ten vyolves (Canis lupus) from 7 packs in the same area were radiotracked before and/or during the same period...
Authors
R.L. Hoskinson, L.D. Mech
Disproportionate sex ratios of wolf pups Disproportionate sex ratios of wolf pups
Males comprised 66 percent of wild wolf (Canis lupus) pups from a saturated, high-density wolf range in northeastern Minnesota, possibly reflecting disproportionate conception of males. Packs from areas of lower wolf density in other areas of Minnesota had equal sex ratios of pups or a disproportionate number of female pups. Captive wolves showed a slight preponderance of male pups.
Authors
L.D. Mech
Status of the wolf in Michigan, 1973 Status of the wolf in Michigan, 1973
Wolf (Canis lupus) numbers in Michigan's Upper Peninsula declined from an estimated 45-50 animals in the mid-1950s to near extinction in 1973, probably because of overharvesting through the bounty system. Sporadic breeding and occasional immigration of wolves from Ontario and Minnesota are postulated to be the factors tending to maintain the present population at the level of perhaps six
Authors
J. Hendrickson, W. L. Robinson
Weights, growth, and survival of timber wolf pups in Minnesota Weights, growth, and survival of timber wolf pups in Minnesota
Weights, growth rates, canine tooth lengths, and survival data were obtained from 73 wild wolf (Canis lupus) pups that were 8 to 28 weeks old when live-trapped in three areas of northern Minnesota from 1969 to 1972. Relative weights of wild pups are expressed as percentages of a standard weight curve based on data from captive pups of similar age. These relative weights varied greatly...
Authors
V. Van Ballenberghe, L.D. Mech
Blood analyses of wolf pups and their ecological and metabolic interpretation Blood analyses of wolf pups and their ecological and metabolic interpretation
Blood samples were obtained from 32 wolf (Canis lupus) pups live-trapped over a three-year period in northern Minnesota. The results of 21 laboratory analyses of hematology and blood chemistry are tabulated and analyzed in terms of study area, age, sex, and year of collection. Mean values are compared to those reported for dogs in the same age group. The numerous differences between dog...
Authors
U.S. Seal, L.D. Mech, V. Van Ballenberghe
Current techniques in the study of elusive wilderness carnivores Current techniques in the study of elusive wilderness carnivores
No abstract available.
Authors
L.D. Mech
Scent-marking in wolves Scent-marking in wolves
No abstract available.
Authors
R.P. Peters, L.D. Mech
Hunting behavior in two similar species of social canids Hunting behavior in two similar species of social canids
No abstract available.
Authors
L.D. Mech
An experimental translocation of the eastern timber wolf An experimental translocation of the eastern timber wolf
No abstract available.
Authors
T.F. Weise, W. L. Robinson, R.A. Hook, L.D. Mech