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Hi Again,
I notice that, for unintentional comic relief, I looked at 1500 and read
1700 so my numbers must be shifted accordingly. So average ring width would
be 1.78 mm and max age would be 475 years.
DW
----- Original Message -----
From: "David & Alison Webster" <dwebster@glinx.com>
To: <naturens@chebucto.ns.ca>
Sent: Saturday, April 26, 2014 11:46 AM
Subject: Re: [NatureNS] Tree hugger's quandary - our biggest/oldest Yellow
Birch
> Hi All, Apr 26. 2-14
> If that tree is 17.5' in diameter then the head of that gentleman who
> is sitting on our right is 2.5' wide; a Guiness record for sure. Liars can
> figure but undoctored images don't lie. Assuming the number 17.5 was
> accurately transcribed from some vaild source then that tree could be
> 17.5' in circumference; 5.57' in diameter (67") yielding a head "only" 10"
> wide [or perhaps 7" if he is sitting well in front of the trunk].
>
> Again, assuming 17.5' in diameter, the radius would be 2667 mm which
> assuming 1700 years, would yield an average ring width of 1.6 mm; entirely
> reasonable for Yellow Birch.
>
> Paul Bunyan with a magic increment borer could not extract a core 2667
> mm long. Consequently, if a core was taken at all, it was likely no more
> than 10 cm long with an average ring width of `1.6 mm. And someone with a
> first-hand unfamiliarity with the facts subsequently used a
> state-of-the-art computer program to divide the incorrect diameter of
> 17.5' ( i.e. 5334 mm) by 2*1.6 mm.
>
> Therefore that tree is likely no more than 530 years old
> [5.57*6*25.4/1.6]; old nonetheless.
> Yt, Dave Webster, Kentville
> ----- Original Message -----
> From: "David Patriquin" <David.Patriquin@Dal.Ca>
> To: <naturens@chebucto.ns.ca>
> Sent: Saturday, April 26, 2014 9:54 AM
> Subject: RE: [NatureNS] Tree hugger's quandary - our biggest/oldest Yellow
> Birch
>
>
>> Old Trees of Nova Scotia - we purportedly have a 1500 year old Yellow
>> Birch
>> http://www.outdoornovascotia.com/ancient.htm
>> What do we know about it, e.g., was it actually aged by DNR?
>> ________________________________________
>> From: naturens-owner@chebucto.ns.ca <naturens-owner@chebucto.ns.ca> on
>> behalf of Stephen Shaw <srshaw@Dal.Ca>
>> Sent: Friday, April 25, 2014 8:07 PM
>> To: naturens@chebucto.ns.ca
>> Subject: RE: [NatureNS] Tree hugger's quandary
>>
>> An impressive old tree indeed. At a conference in Cambridge UK ~1996, a
>> short cut accompanied by the local organizer took us past (I think it
>> was) King's College where he pointed out a mature, tall horse chestnut
>> tree in full leaf outside the building, in great shape. Did I know that
>> there's an actual university committee which oversees looking after that
>> particular chestnut tree and only that one, he commented? I hope they
>> are still there (both the tree and the committee).
>>
>> Such extreme specialization may arise in part from England's being only
>> 2.4x larger in area than Nova Scotia but having a population density of
>> ~411 per square km versus Nova Scotia's ~17/squ km, in Cambridge U having
>> a student/faculty ratio of only ~1/4 of that in most Canadian (and other)
>> universities, and the fact that the English in particular cut down most
>> of 'their' trees in the Middle Ages and before, so perhaps have had time
>> to reflect on what little they have left.
>> Steve (Hfx)
>> ________________________________________
>> From: naturens-owner@chebucto.ns.ca [naturens-owner@chebucto.ns.ca] on
>> behalf of Dusan Soudek [soudekd@ns.sympatico.ca]
>> Sent: Wednesday, April 23, 2014 9:44 AM
>> To: naturens@chebucto.ns.ca
>> Subject: Re: [NatureNS] Tree hugger's quandary
>>
>> A gorgeous big tree! And an interesting book on the old trees of the
>> U.K. They published a book about significant old trees in New Brunswick a
>> number of years ago. (I do have a copy, somewhere. Probably lent out.) I
>> don't believe there is one for Nova Scotia. Nimbus Publishing, are you
>> listening?
>> Dusan Soudek
>>
>>
>>> On April 22, 2014 at 7:41 PM David & Alison Webster <dwebster@glinx.com>
>>> wrote:
>>> Hi All, Apr 22, 2014
>>> Not NS natural history but I like this tree--
>>> http://www.telegraph.co.uk/gardening/plants/trees/8675208/Champion-trees-of-Britain-and-Ireland.html
>>> Yt, DW, Kentville
>>>
>>
>>
>> -----
>> No virus found in this message.
>> Checked by AVG - www.avg.com
>> Version: 2014.0.4570 / Virus Database: 3920/7389 - Release Date: 04/24/14
>>
>
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