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Mark
Eden
Hunting out of Bosebuck Mountain
Camps, Wilsons Mills, Maine,
Wednesday, October 22, 1986
I was hunting for ruffed grouse
on an old logging road and flushed
a grouse and managed to drop
it. It was immediately evident
as I picked it up that it was
unique. I saved extra feathers
that had fallen out (used later
for DNA testing), and carefully
put it in my vest. I later wrapped
it well, in preparation for
taxidermist Tom Delsignore.
September
28, 1994
From Brad Allen, Wildlife Biologist
- Bird Group (Maine Department
of Inland Fisheries and Wildlife)
Your photos of the
unusual grouse you shot recently
crossed my desk. I thank you
for taking the time to send
these great photos. Your taxidermist
did a nice job as well.
I have to agree with you
that it looks to be a cross
between a spruce grouse and
a ruffed grouse. I searched
all my available literature
on grouse and have found that
there are reports of spruce
and willow ptarmigan crosses,
but Ive found none with
ruffed grouse. There is a spruce
grouse expert in New York that
I will call to see if hes
heard of it. Youve got
my curiosity up, and I will
look into this further. When
I learn anything new, Ill
drop you a note.
December
4, 1994
From Paul E. Carson, Editor,
Ruffed Grouse Society
I apologize for the
more than two month delay in
responding to your letter and
photos. Contrary to appearances,
I havent forgotten your
grouse. What Ive been
trying to do is find an expert
who might give us a good, educated
guess concerning the bird. Ive
gotten the name of a person
I think can help. Ive
been looking for an opportunity
to get the photos duplicated
so I wouldnt have to send
off your originals and risk
losing them.
Thank you for sending
the photos. The bird is certainly
beautiful. I hope we can find
out something about the grouse.
It probably wouldnt have
taken this long if I could simply
have shown the photos to Gordon
Gullion. His death has cut down
dramatically on the number of
grouse experts available.
Photo of grouse was printed
in the RGS magazine.
April
12, 1996
From Ken Szabo; Grouse Tales
Thanks for your letter
and photos of April 9th. The
grouse you killed in the Rangely
area of Maine in undoubtedly
a hybrid cross of a spruce and
ruffed grouse, and luckily you
had it mounted.
From Grouse Tales, May - June,
1996
Member Reports Bagging
Hybrid Grouse. Mark Eden
of Attleboro, MA writes Here
is a photograph of an unusual
grouse I had mounted. I bagged
this bird on October 22, 1986
while on a grouse-hunting trip
near Rangely, Maine. I believe
this grouse shows characteristics
of both ruffed and spruce grouse.
A Wildlife Biologist for the
Maine Department of Inland Fisheries
and Wildlife agreed the bird
appears to be a cross between
a ruffed and spruce grouse.
Photo of grouse was printed
in Grouse Tails Newsletter
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June
3, 1999
E-mail from Peter A. Eden, PHD.
"Well, some grouse molecular
genetic analysis material has
arrived at thelab. Using an
experimental approach, which
takes advantage of likely genomic
chromosomal differences between
these types of grouse (i.e.
some gene segments from Ruffed
are different size than "same"
gene segments from Spruce),
we might be able to detect Spruce
AND Ruffed grouse DNA in tissue
specimens from the hybrid. This
type of testing is possible
since the two types of grouse,
while having very similar genetic
makeup, do differ as they have
evolved separately in recent
history."
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Molecular
Genetic Analysis of a
Hybrid Grouse Specimen
Background:
An apparent hybrid Spruce/Ruffed
grouse was identified
on the basis of phenotypic
characteristics. In order
to confirm true hybrid
status, evaluation of
the genetic make-up of
this specimen is suggested.
Identification of Spruce
grouse as well as Ruffed
grouse molecular genetic
markers, from DNA isolated
from this particular bird,
will prove that mating
between these groups occurred.
Rationale:
While the phenotype clearly
suggests that this bird
is a hybrid, there is
no better confirmation
than genetic proof of
such natural breeding.
This evidence eliminates
any subjectivity. Moreover,
by examining Spruce versus
Ruffed grouse-specific
genomic DNA markers, we
will be able to tell whether
this particular bird is
an F1 (immediate
parents Spruce and Ruffed,
i.e. half of genetic material
comes from each type),
or is an F2
or beyond (i.e. an F1
hybrid then mated with
either a pure Spruce or
a Ruffed grouse, resulting
in the bird that we are
analyzing; that is, while
it appears to be half
Spruce or Ruffed, phenotypically,
it may be 1/4 of either).
The findings will confirm
the phenotypic assessment,
and will provide valuable
information regarding
the breeding dynamics
of these grouse.
Methodology:
Feathers have been obtained
from the hybrid, and Spruce
grouse as well as Ruffed
grouse tissue has been
obtained from George Barrowclough
(Dept. Ornithology, Museum
of Natural History in
NYC). DNA will be extracted
from this tissue, in Prof.
Edens lab. Reagents
needed to perform the
genetic analysis have
been obtained from Dr.
Stuart Piertney (Dept.
Zoology, University of
Aberdeen, Scotland UK).
While these molecular
tools are specific for
Red grouse, it is hoped
that they will work on
Spruce/Ruffed grouse DNA
as well. DNA from the
hybrid and from the pure
Spruce and Ruffed grouse
samples will be tested
with the molecular genomic
reagents. By analyzing
the DNA products from
these tests, we hope to
see evidence of variation
between Spruce and Ruffed
grouse DNA at various
markers across the grouse
genome. If this is achieved,
and if the hybrid specimen
is truly a hybrid, we
expect to observe Spruce
AND Ruffed grouse markers
in the hybrid DNA.
Timeline:
This project is due to
begin late May, 2002,
and could be completed
by December 2002.
Peter
A. Eden, Ph.D. holds a
B.S. in Microbiology from
University of Massachusetts,
Amherst and a Ph.D. in
Microbiology from University
of New Hampshire, Durham.
He has held the position
of Scientist, Research
Project Leader and Consultant
at Biomeasure, Inc, Milford,
MA, Research Fellow at
Jackson Laboratory, Bar
Harbor, ME and is currently
Asst. Professor and Chair
for the Science Department
of Marywood University,
Scranton, PA.
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