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DNR employees carefully remove a tranquilized black bear (Ursus americanus) from its den in order to fit it with a radio collar. The radio collar will help DNR biologists track the bear and allow for checkups to aid in their research of the species in Michigan.
DNR employees inspect a black bear (Ursus americanus) cub. Cubs are born around January and stay in the den with the mother during the late winter months. This cub's mother was tranquilized and given a radio collar to help biologists track and check up on the species in Michigan.
DNR employees release a white-tailed deer after it has been tagged with an ear tag.
DNR employees pull a tranquilized black bear (Ursus americanus) out of her den, preparing to attach a radio collar. The radio collar will help DNR biologists track the bear and allow for checkups to aid in their research of the species in Michigan.
DNR employee tagging a walleye (Sander vitreus) with an Internal/PIT tag. These tags are an implanted tag which contains a series of numbers and letters that can be obtained by passing a "PIT Tag reader" over the implanted tag. The tagging program helps biologists to determine movement and seasonal distribution of the species.
DNR employees attach a radio collar to a tranquilized black bear (Ursus americanus). The radio collar will help DNR biologists track the bear and allow for checkups to aid in their research of the species in Michigan.
DNR employees netting walleye (Sander vitreus) to be tagged and released to determine movement and seasonal distribution of the species.
Report of an autopsy performed on a "killer bear" that had attacked a small child to determine possible causes.
Preliminary report on the results and conditions of the 1976 deer season, with discussion on the status and health of the herd.
Summary of deer herd outlook by district, with focus on predictions of losses from winter.
Several potential areas for possible stocking of moose in Michigan's Upper Peninsula have been selected based on habitat suitability, current deer populations, previous moose occurrence, and human populations. In order to assess the incidence of brain or meningeal worm (Parelaphostrongylus tenuis) in wintering deer herds in these areas, a surveys was undertaken in the spring of 1982 in the Upper Peninsula. A total of 157 deer pellet groups were collected and analyzed for brainworm. One-hundred and nineteen of the 157 pellet groups were positive for P. tenuis, indicating a 76% prevalence.
Report on a study of doe productivity and physical condition using results from necropsies conducted on does that died from various causes between March and June 1977.
Report on the results of the 1999-2000 Bobcat Survey. In order to allow the export of bobcat (Felis rufus) pelts under the Convention on International Trade in Endangered Species (CITES), the United States Fish and Wildlife Service compiles data on the harvest and status of bobcats. This documentation is necessary to verify the stability of bobcat populations to allow for their continued harvest and the exportation of pelts.
Report summarizing several surveys conducted in 1973 to assess the health status of Michigan's wild turkeys.
Extensive logging in the 1800's and subsequent fires plus heavy trapping through the 1920's led to the extirpation of the fisher (Martes pennanti) from its former range in the Upper Peninsula (U.P.). Fisher were reintroduced in the 1960's on the U.P.'s Ottawa National Forest. Fisher have become sufficiently abundant in Baraga, Gogebic, Houghton, Iron, and Ontonagon counties to allow the Department of Natural Resources to permit a limited harvest. This was the first legal trapping season for this species in over 50 years and resulted in a harvest of 93 fisher.
Report on a survey to determine the incidence of D. nasuta in ruffed grouse, severity of the infection, and possibly, to locate problem areas throughout the state.
The objective of this research is to determine the prevalence and pathogenicity of L. smithi in wild turkeys in Allegan County, Michigan, and to assess the possible effects of L. smithi on poult survivability and population growth.
Necropsies of female white-tailed deer (Odocoileus virginianus) that died from various causes between 5 March and 1 June 1982 were conducted throughout Michigan by Department of Natural Resources personnel. Embryo counts were made and the deer were aged to the nearest full year. Most of the deer examined were highway mortalities (93%). The remainder included illegal kills (1%), predation (2%), and deer which died from other accidents (4%) such as drownings or collisions with obstructions.
Report on a study to determine the geographic distribution of Leucocytozoon bonasae in ruffed grouse in Michigan.
Report of study following the chronology of Leucocytozoon simondi parasitemia in naturally infected goslings
Extensive logging in the 1800's, subsequent fires, and heavy trapping through the 1920's led to the extirpation of the fisher (Martes pennanti) from its former range in the Upper Peninsula (U.P.). Fisher were first reintroduced in the 1960's on the U.P.'s Ottawa National Forest. By 1989, they had become sufficiently abundant in all or parts of Baraga, Gogebic, Houghton, Iron, Marquette and Ontonagon counties to allow a limited harvest by trapping. In 1994, additional areas in Alger, Delta, Dickinson, Houghton, Keweenaw, Marquette and Menominee counties were opened to fisher trapping. Trappers were limited to 1 fisher from Unit B as part of their bag limit. Regulations remained the same in 1995. In 1996, the remainder of the Upper Peninsula, with the exception of Drummond Island, was added to Unit B. Since the first trapping season, trappers have been required to submit to the Michigan Department of Natural Resources (DNR) the skulls of fisher for examination and pelts for sealing. This year, 348 of the 471 (73.9%) legally trapped and registered fisher were submitted for examination at the Rose lake Wildlife Disease laboratory. Nearly equal numbers of males, 187 (53.7%) and females, 161 (46.3%) were examined. Of the legally trapped fisher submitted for examination, 71.3% (248 of 348) were 1.5 years old or younger. By comparison, last year's fisher harvest consisted of 81.4% (118 of 145) juveniles.
Report on the results of the 1987-1988 Bobcat Survey. In order to allow the export of bobcat (Felis rufus) pelts under the Convention on International Trade in Endangered Species (CITES), the United States Fish and Wildlife Service compiles data on the harvest and status of bobcats. This documentation is necessary to verify the stability of bobcat populations to allow for their continued harvest and the exportation of pelts.
The Wildlife Division has been collecting and tabulating measurements from hunter harvested deer (Odocoileus virginianus) for over 47 years, including data on antler beam diameters and the number of antler points in yearling bucks. These measurements are believed to reflect, in part, the physical condition of the deer herd. This report contains summaries of the deer physical data collected during 2000 and is intended to encourage comparison with similar data from past years. Some of the data presented in this report were collected at four roadside check stations set up along major north-south highways across the state. A large number of deer were also checked at numerous field stations throughout the state. In 2000, records on over 49,000 deer were submitted.
The Wildlife Division has been collecting and tabulating measurements from hunter killed deer (Odocoileus virginianus) for over 44 years, including data on antler beam diameters and the number of antler points in yearling bucks. These measurements are believed to reflect, in part, the physical condition of the deer herd. This report contains summaries of the deer physical data collected during 1995 and is intended to encourage comparison with similar data from past years. Some of the data presented in this report were collected at three roadside check stations set up along major north-south highways across the state. A large number of deer were also checked at field stations throughout the state.
The Wildlife Pathology Laboratory monitored the health status of put-take pheasants at both the Breeder and Hatchery Unit and Rearing Unit during the production year 1980 (March-December) to detect diseases and other conditions which might threaten the success of the put-take program. In the monitoring effort, sick and dead pheasants were collected and examined by the Wildlife Pathology Laboratory each week. Necropsy results are tabulated for each of the units in this report. The total birds examined in 1980 was 54, up from the 42 examined in 1979. Trauma cases increased from 8 to 14 and pneumonia and aspergillosis cases increased from 13 to 24.
