muskrat, fisher, eastern coyote Flashcards
scientific name of muskrat
ondatra zibethicus
describe 2 facts about muskrat hair
- only mammal in NY with course hair under tail
- soft dense undercoat and thick guard hairs
what land do muskrats occupy
they prefer marshlands but can occupy wetlands, and waterways that are heavily vegetated
what do muskrats eat
roots and stems of aquatic vegetation and sometimes invertebrates when veg is short or there is abundance in mollusks, fish, etc (even turtles)
signs of a muskrat
well matted resting and feeding platforms- usually littered with scraps of veg and crayfish as well as droppings
are muskrats nocturnal
yes muskrats are nocturnal
how do muskrats defend their territory
muskrats are extremely territorial especially prior and during breeding season.
territory holders usually older- younger more likely to be prey
how do muskrats burrow in marshes vs waterways
in marshes they build up from vegetation where as in waters ways they dig into the bank and create underground tunnels. both are damaging to surrounding banks and vegetation
push ups (breathers)
muskrat burrow created for winter- masses of veg collected from underwater and pushed up thru cracks or holes in the ice- they freeze and serve as resting place and are maintained as breathing holes
how do muskrat impact other species
- canada geese and mallards nest on top of huts
- species such as turtles will use houses for hibernation
- eating bur-reeds clear areas for the endangered black tern to mate!!
when does breeding occur in muskrats
april- may
how long is gestation periods in muskrats
25/30 days
how many young and litters can muskrats have
4-8 kits and up to 3 litters a year
when can females begin mating
the fall of their first year, but the northern range of the species don’t reach sexual maturity until one year
what kills muskrats
- traps,
- cars,
- minks, raccoons,
- other predators also hunt them like fox, coyotes, red-tailed hawks, and great-horned owl
- disease
scientific name of fisher
martes pennant
what family is the fisher a part of
weasel
what physical differences do male and female fishers have
- females usually have a uniform color where as males will have blonde or brown hairs around the upper neck, upper back/ shoulders
- females are much smaller (dimorphism)
fisher feet do what to help them descend trees
rotate nearly 180 degrees
what do fishers use to attack mates and mark territory
large anal scent glands
fishers have what type of claws
semi-retractable
what continent do fishers live
north america