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This report presents estimates of trapper catch of some of Michigan's important furbearers for the 1981-82 trapping seasons. Presented for comparison are the results of similar mail surveys conducted after the 1970-71 and 1980-81 seasons. No mail surveys were conducted or estimates available during the nine year interim period because of rapidly increasing numbers of sportsman's license holders who were authorized to trap during that time period. The species included in this report are the muskrat (Ondatra zibethica), mink (Mustela vison), raccoon (Procyon lotor), opossum (Didelphis marsupialis), striped skunk (Mephitis mephitis), weasels (Mustela sp.), red fox (Vulpes fulva), gray fox (Urocyon cinereoargenteus), coyote (Canis latrans), bobcat (Lynx rufus), beaver (Castor canadensis), and river otter (Lutra canadensis).
Report on a systematic investigation into the various roles predatory mammals play and their values in Michigan.
Report summarizing activities and population studies at Rose Lake Wildlife Experiment Station in the first quarter of 1939.
This report presents estimates of trapper catch and estimates of pelt values of some of Michigan's important furbearers for the 1982-83 trapping seasons. Furbearer catch data for the last three trapping seasons is presented in this report; also listed is the number of trappers and average take per trapper for 12 species. The species included in this report are the muskrat (Ondatra zibethica), mink (Mustela vison) , raccoon (Procyon lotor), opossum (Didelphis marsupialis), striped skunk (Mephitis mephitis), weasels (Mustela sp.), red fox (Vulpes fulva), gray fox (Urocyon cinereoargenteus). coyote (Canis latrans), bobcat (Lynx rufus), beaver (Castor canadensis), and river otter (Lutra canadensis).
Comments on the 1950-1951 kill by hunters and trappers of most species (not including pheasants and deer).
Article overviewing the problems associated with the fox population.
Report on a survey done to estimate the number of trappers that used foothold traps and snares to catch fox or coyotes and determine their trapping effort and harvest of fox and coyotes. In addition, trappers were asked to report the types and number of animals besides coyote and fox that were captured in foothold traps and snares.
Rose Lake Wildlife Research Area is located on the border of Shiawassee and Clinton counties, 12 mi northeast of Lansing. Mammals have been an object of study on the research area since its founding in 1938. Through the years, records have been collected on mammals frequenting the area. The amount of data gathered, as well as the methods used for collection, were not consistent from year to year. Therefore, the records are not complete enough to document population sizes or fluctuations. They do, however, provide knowledge of the mammal species present on the area and give an indication of their relative abundance. The purpose of this report is to document the presence and relative abundance of all species of mammals known or thought to be present on the Rose Lake Area from 1938 through 1980.
Report summarizing the final results of the Bay County fox control experiment.
Summary of the findings of a predator research project to determine the effectiveness of the trapper-instructor system and to estimate predatory animal loss to Michigan farmers.
Transcript of radio interview on fur-bearing animals on the farm with G. W. Bradt.
Memo summarizing the amount of fox bounties paid out in different counties in 1946.
Report on the results, hunting and conditions of the 1968 waterfowl hunting season at Allegan State Game Area, with information about small game seasons as well.
The Upper Peninsula (UP) of Michigan supports numerous furbearer species, and the Department of Natural Resources is charged with managing the "Endangered" but rapidly recovering gray wolf (Canis lupus), the reintroduced fisher (Martes pennanti) and marten (M. americana), the Federally regulated bobcat (Lynx rufus) and river otter (Lutra canadensis), and a number of other furbearers of varying status. Harvest information and physical data have been collected as part of the registration process for fisher, bobcat, river otter, badger, and incidental marten captures. Furbearer Winter Track Count Surveys have been attempted in the UP since 1996, and formal summaries of the results of the survey conducted in 1998 and 1999 were reported. A winter track count approach was selected, because many of the species of greatest concern are active on the surface of the snow during winter, and suitable snow tracking conditions in the UP normally extend from late January until early April. Routes were surveyed 1-3 days after a marker snow, and data from 11 furbearers and 5 other species of interest were collected. Marten tracks were found along 48% of the segments surveyed in 2000. The coyote (Canis latrans) was the most widely distributed furbearer, leaving tracks along 78% of the segments surveyed. The Lagomorphs (snowshoe hare, Lepus americanus and cottontail rabbit, Sylvilagus floridanus) were the most widely distributed species group, being detected along 79% of the segments surveyed.
Report on fox populations and problems in the northern portions of Michigan.
The Upper Peninsula (UP) of Michigan supports numerous furbearer species, and the Department of Natural Resources is charged with managing the "Endangered" but rapidly recovering gray wolf (Canis lupus), the reintroduced fisher (Martes pennanti) and marten (M. americana), the Federally regulated bobcat (Lynx rufus) and river otter (Lutra canadensis), and a number of other furbearers of varying status. Reliable and efficient methods to census these furbearers currently do not exist. In addition to this, unusually mild winter weather, attributable to the EI Nino climatological phenomenon, minimized survey opportunities during February and March. Thirteen of the 20 routes assigned were surveyed, and 10 of the 13 routes attempted were completed. The Western UP Management Unit completed all or most of 11 of 12 routes assigned. The Research Section completed two routes in the central UP, and the Eastern UP Management Unit completed 0 of 6 routes assigned. Therefore, the results of this survey in 1998 were derived only from the western two-thirds of the UP. Data acquired indicates that coyote (Canis latrans) and wolf abundance may have increased between years in the areas surveyed. Fisher, fox, hare/rabbit (Lepus americanus and Sylvilagus floridanus), and grouse abundance may have decreased, while marten and bobcat numbers showed little change.
Study on the trapping and marking of a variety of mammals, with details on trapping methods for each.
Findings of stomach examinations on various small mammals in Kalamazoo County from 1936-1937.
This report presents estimates of trapper catch of some of Michigan's important furbearers for the 1980-81 trapping seasons. The estimates are generated from responses to mail survey questionnaires. Presented for comparison are the results of similar mail surveys conducted after the 1969-70 and 1970-71 seasons. The species included in this report are the muskrat (Ondatra zibethica) , mink (Mustela vison), raccoon (Procyon lotor), opossum (Didelphis marsupialis), striped skunk (Mephitis mephitis), weasels (Mustela sp.), red fox (Vulpes fulva), and coyote (Canis latrans). Estimates for beaver (Castor canadensis), river otter (Lutra canadensis), and bobcat (Lynx rufus), are available from mandatory registration counts.
Report summarizing the progress of the Bay County fox control experiment.
The Upper Peninsula (UP) of Michigan supports numerous furbearer species, and the Department of Natural Resources is charged with managing the "Endangered" but rapidly recovering gray wolf (Canis lupus), the reintroduced fisher (Martes pennanti) and marten (M. americana), the Federally regulated bobcat (Lynx rufus) and river otter (Lutra canadensis), and a number of other furbearers of varying status. Harvest information and physical data have been collected as part of the registration process for fisher, bobcat, river otter, badger, and incidental marten captures. Furbearer Winter Track Count Surveys have been attempted in the UP since 1996, and formal summaries of the results of the surveys conducted in 1998-2001 were reported. A winter track count approach was selected, because many of the species of greatest concern are active on the surface of the snow during winter, and suitable snow tracking conditions in the UP normally extend from late January until early April. In 2001, survey routes were redefined as a single stretch of road or trail with minimum right-of-way improvement, approximately 8 km in length. Most of the former route "segments" were designated as "routes", individual routes were surveyed as time and snow conditions permitted, and routes became the sampling unit from which data were analyzed. Ninety-three routes were surveyed in 2002 and routes were surveyed 1-3 days after a marker snow. Data from 9 of 11 furbearers and 4 of 5 other species of interest were collected along the 744.8 km of roads and trails surveyed. Marten tracks were found on 41% of the routes surveyed in 2002. Coyote (Canis latrans) was the most widely distributed furbearer, leaving tracks along 74% of the routes surveyed. Lagomorphs (snowshoe hare, Lepus americanus and cottontail rabbit, Sylvilagus floridanus) were more widely distributed, being detected along 81% of the routes surveyed.
Results of investigations into the dispersal of young foxes from the Rose Lake and Swan Creek Wildife Experiment Stations.
Study to determine the effectiveness of trailing foxes to locate deer carcasses from deer shot and wasted by hunters to more accurately determine the magnitude of this illegal drain on the herd.
