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Hi Rick & All, July 13, 2013
A healthy deciduous tree normally has a good complement of reserves (but
at minimum about now when shoot growth is vigorous) so loss of
photosynthetic function may be only an inconvenience. But if there were two
or more consecutive stress years then tree death would be more likely and
almost .certain if the stress was leaf loss.
Blow downs are another matter because a tree with a large crown will
often take more than four promising trees with it. And I don't think I have
ever seen so many small branches speared several inches into the ground; a
whiplash effect not gravity. The season may be past but any bird eggs or
nestlings in open tree nests would likely have been killed by this lashing.
A shot of one of my roads shows windthrow clearly because the road is
otherwise free of trees.
https://www.flickr.com/photos/91817127@N08/14444462457/
Yt, Dave Webster, Kentville
----- Original Message -----
From: "Rick Whitman" <dendroica.caerulescens@gmail.com>
To: <naturens@chebucto.ns.ca>
Sent: Sunday, July 13, 2014 11:43 AM
Subject: Re: [NatureNS] Caramelized White Spruce
>I drove the Cobequid Pass toll road both Friday & Saturday. The brown
> shade to the foliage on the deciduous trees was obvious and sad. I'm
> not saying the foliage is dead but the damage must be highly
> significant and somewhat negative to survival over the next year or
> so. I didn't stop for photos. This high altitude area was far worse
> than the overall view in n. NS & se. NB.
>
> Rick Whitman
>
> On 7/13/14, Burkhard Plache <burkhardplache@gmail.com> wrote:
>> We were paddling yesterday out of Terence Bay,
>> and saw the same pattern on the outlying islands.
>>
>> On Sun, Jul 13, 2014 at 10:10 AM, David Patriquin
>> <David.Patriquin@dal.ca> wrote:
>>>
>>> On a joint Halifax Field Naturalists/Nova Scotia Wildflower Society walk
>>> at
>>> Prospect Head yesterday (July 12, 2014), we noted extensive browning of
>>> vegetation which was attributed to salt burn associated with sea spray
>>> from
>>> Tropical Storm Arthur 8 days before, preceded and followed by hot, dry
>>> weather.
>>>
>>> At one point, a few of us paused and wondered about a strong smell of
>>> caramelized sugar that seemed to come from a white spruce. (It reminded
>>> me
>>> of the smell from sugar cane mills in the West Indies in days gone by.)
>>> A
>>> brief investigation revealed the source as the browned needles on branch
>>> tips. A few pics at http://versicolor.ca/caramspruce
>>>
>
>
> -----
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