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Re: E-M:/ coyote biology



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Enviro-Mich message from David Allen <dallen@nmu.edu>
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Can't remember where I saw it, but I read some time ago that litter size
was also impacted by numbers - inversly.  More coyotes in area <==> smaller
litters.  Read this years ago, so it should be taken with suspicion.

Dave A.

At 12:24 PM 6/21/00 , Tim Flynn wrote:
>-------------------------------------------------------------------------
>Enviro-Mich message from Tim Flynn <timf@mac.com>
>-------------------------------------------------------------------------
>
>Sherry,
>
>Thanks for the input.  The social pressure I was referring to need not be
>related to pack structure.  The dominate pairs in an areas exert pressure on
>other sub-dominate individuals attempting to limit competition for their
>food.  As the community is put under increased mortality by hunting, more
>individual coyotes are freed from this pressure from dominate individuals
>and pairs, and therefore breeding increases among other members of the
>community.
>
>At least that is what the paper said.
>
>Tim
>
> > From: "Sherry MacKinnon" <MACKINSM@state.mi.us>
> > Reply-To: "Sherry MacKinnon" <MACKINSM@state.mi.us>
> > Date: Wed, 21 Jun 2000 08:30:37 -0400
> > To: <enviro-mich@great-lakes.net>
> > Subject: E-M:/ coyote biology
> >
> > -------------------------------------------------------------------------
> > Enviro-Mich message from "Sherry MacKinnon" <MACKINSM@state.mi.us>
> > -------------------------------------------------------------------------
> >
> > Just a short note on coyote biology- it would be unlikely that social
> pressure
> > would limit coyote reproduction as coyotes rarely, if at all, form
> packs like
> > wolves.  In pack society only the dominant pair are allowed to breed.
> > Generally, the only time coyotes are seen in any number together is
> when the
> > pups are young and the coyotes are travelling as a family unit.  Young
> > disperse from the natal den at 6-9 months of age and most will not
> breed until
> > their second winter.  So every year these new recruits to the
> population are
> > not breeding.  Most biologists feel that the major limiting resource on
> coyote
> > reproduction is lack of food resources and available habitat (although
> coyotes
> > are good at making the best of what is available in a suburban
> setting).  So
> > the point Tim makes about getting rid of their access to "un-natural" food
> > resources is a good one.
> >
> > According to A. Kurta (Mammals of the Great Lakes Region) woodchucks
> have not
> > been documented as a food source, but I can't imagine a coyote not
> taking the
> > opportunity if it arises!
> >
> > Sherry
> >
> >
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