Don Brown Mandy Oberholzer Rob Herman
Overview This management plan is designed for the Eastern gray squirrel, Eastern cottontail, and North American porcupine for the Neithercut Woodland. Utilizes habitat alterations. Will be profitable to CMU monetarily and educationally. 2Small Mammals
North American Porcupine (Erethizon dorsatum) 3Small Mammals
Life History 2 nd largest rodent in North America Only species in its genus Generally brown, yellow and white in quills Compact, round bodies – excellent climbers Barbed quills Predators 4Small Mammals
Reproduction Sexually dimorphic Mate in fall One baby born in spring (200 days) Weaned for 4 months months until sexual maturity 5Small Mammals
Diet Herbivorous Spring – berries, nuts, buds, twigs Winter – bark, cambium, needles Consume 10% of body weight per day Strong attraction to salt 6Small Mammals
Habitat Very adaptable to living conditions Solitary – territorial Dens Active all year 7Small Mammals
Range Yukon territory down throughout Canada Northern U.S. West of Rockies down to Northern Mexico 8Small Mammals
Eastern Cottontail (Sylvilagus floridanus) 9Small Mammals
Life History Red/gray-brown in color Large hind legs Fluffy tail, hence term “cottontail” Molt twice a year Male – buck, Female - doe 10Small Mammals
Reproduction Breed from March-late summer(3-4/yr.) 28 day gestation period Litter size: 1-7 (usually 3-4) Leave nest after 2 weeks 11Small Mammals
Diet Herbivorous Herbaceous and woody plants depending on the season Wide variety of food consumed 12Small Mammals
Habitat Predators Diseases/Parasites Transitional habitats preferred Open grasslands 13Small Mammals
Range Home ranges Occurs sympatrically Prevalent in diverse habitats Eastern North America down to Northern South America 14Small Mammals
Eastern Gray Squirrel (Sciurus carolinensis) 15Small Mammals
Life History Tree squirrel Generally gray in color Body size Live in “drays” during summer, tree holes during winter Don’t hibernate Hours active during the day 16Small Mammals
Reproduction Mate twice per year Males court for 5 days 44 day gestation period 2-4 young per breeding season 17Small Mammals
Diet Omnivorous Tree seeds, fruits, flowers, etc. Herbaceous plants Fungi Insects Eggs, nestlings, frogs Scatter hoarding 18Small Mammals
Habitat Predators Continuous, mature hardwood forests Mixed forests Diverse vegetation in understory preferred Very adaptable – fragmentation, urban areas 19Small Mammals
Range Central/eastern North America from southern Canada to Gulf of Mexico Other areas introduced 20Small Mammals
Management Goals/Objectives Maintain stable populations of North American porcupines, Eastern gray squirrels, and Eastern cottontails through habitat improvements. 21Small Mammals
Neithercut Description Clare County, Michigan 252 acres Diverse habitats Carved by glaciers 4 trails, 2 creeks 22Small Mammals
Management Recommendations Stabilize populations via habitat improvements Maintain corridors Preserve snags, logs, downed trees Conduct timber harvest Construct brush piles Mow/disk to stimulate new growth 23Small Mammals
Preserve Snags/Downed trees 24Small Mammals
Construct brush piles 25Small Mammals
Mow/disk to stimulate new growth 26Small Mammals
Maintain corridors 27Small Mammals
Timber Harvest 28Small Mammals
Evaluating/Monitoring E. gray squirrel Visual counts Hair tube surveys Drey counts N.A. porcupine Visual counts Den counts E. cottontail Spotlight transects Warren monitoring Rabbits counts Gibb/McLean scales 29Small Mammals
Success Criteria All three species determined to be living in Neithercut, then no further management steps necessary. 30Small Mammals
Timeline Year One: Spring – 2010 Meeting with foresters to survey the land for the timber harvest. Summer Open up bidding to local timber companies for the woodland. Winter – 2010 Initial population counts conducted of the species. 31Small Mammals
Year Two: Spring – 2011 Initial mowing/disking of a strip of open grassland. Summer – 2011 Timber harvest conducted. Fall – 2011 Brush piles constructed from slash results of timber harvest. Winter – 2011 Second population counts conducted of the species. 32Small Mammals
Year Three: Spring – 2012 First prescribed burn takes place in the upland grassland. Second mowing/disking of a strip of open grassland. Winter – 2012 Third population counts conducted of the species. Year Four-Six: Continue steps previously taken throughout the first three years (except timber harvest). 33Small Mammals
Budget Neithercut Management Budget Year 1Year 2Year 3Year 4Year 5Year 6 Prescribed Burning Timber Harvest$50/hr*12hr= $600 total Brushhog Rental047.50/day Tractor Rental /day Squirrel Trap Equipment Flashlights Fuel075 Miscellaneous/Mainte nance Costs 100 Labor200 Totals$1,350.00$679.50$1, Total Costs$8, Income from Timber Harvest 0Approximately 50, Net Total$41, Small Mammals
QUESTIONS?? 35Small Mammals