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Thanks Wayne,
I now better appreciate the emphasis on the threatened minority=20
cover.
DW
------ Original Message ------
From: "rita.paul@ns.sympatico.ca" <rita.paul@ns.sympatico.ca>
To: naturens@chebucto.ns.ca
Sent: 10/23/2017 9:50:15 AM
Subject: Re: [NatureNS] observation and dogma
>Well Chris Moose wouldn't survive where there are deer -
>clear cut or other wise!
>Paul
>
>>On October 23, 2017 at 7:06 AM Chris Pepper <cpepper@ymail.com> wrote:
>>
>>In Eastern HRM and Guysborough you can still see moose sign fairly=20
>>frequently compared to most of the mainland. Every time I do it's=20
>>always near or in large tracks of intact woods. I know moose like=20
>>feeding in cut areas but so do white-tailed deer. In this area the=20
>>deer need these cut areas while the moose can survive without them.=20
>>Once they are cut the deer move in which doesn't bode well for the=20
>>moose.
>> If I'm wrong and moose would prefer every last acre of their habitat=20
>>cut then they should be doing better these days.
>>Chris
>>
>>Sent from my BlackBerry 10 smartphone on the Bell network.
>>From: Wayne P. Neily
>>Sent: Monday, October 23, 2017 5:22 AM
>>To: naturens@chebucto.ns.ca
>>Reply To: naturens@chebucto.ns.ca
>>Subject: Re: [NatureNS] observation and dogma
>>
>>
>>Hello David,
>>
>>
>>
>>You are quite right that it can be difficult to change the mind of any=20
>>of us who have a fixed opinion on something and have not been able to=20
>>study the question in the field.
>>
>> I'm not sure that anyone has claimed that ancient woodland is the=20
>>best type of cover - certainly it is not if you are a moose. What=20
>>most conservationists and naturalists seek is a good diversity of the=20
>>forest types and stages naturally occurring in a given area, since=20
>>each stage and type has trees, shrubs, herbaceous plants, birds and=20
>>other animals adapted to it. All these stages are important to ensure=20
>>biological diversity and to protect threatened species. Old-growth=20
>>forests may have less diversity of species than some others (edge=20
>>habitats usually have the most diversity), but for those that live=20
>>there they are essential, and our focus needs to be on protecting them=20
>>because they are the most endangered forest ecosystems here and they=20
>>take the longest to regenerate. Certainly there is no shortage of the=20
>>early forest stages preferred by deer and moose. It seems that our=20
>>forest managers are making some effort to see that "harvested" areas=20
>>grow back to a sort of forest that will provide more fibre in the=20
>>shortest time but have little or no interest in allowing it to grow to=20
>>subsequent successional stages or ensuring that all forest types are=20
>>represented. I'll leave it to the forest ecologists on the list to=20
>>give more details if they wish.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>Wayne P. Neily
>>Tremont, Kings Co., Nova Scotia
>>
>> "The woods are lovely, dark and deep.
>>But I have promises to keep,
>>And miles to go before I sleep." - Robert Frost, 1923 [Stopping by=20
>>Woods on a Snowy Evening]
>>
>>"Think globally, Act locally." - Ren=C3=A9 Dubos, 1972.
>>
>>
>>
>>-------------------------------------------------------------------------=
-------
>>From:naturens-owner@chebucto.ns.ca <naturens-owner@chebucto.ns.ca> on=20
>>behalf of David <dwebster@glinx.com>
>>Sent: October 22, 2017 21:14
>>To:naturens@chebucto.ns.ca
>>Cc: David Webster
>>Subject: [NatureNS] observation and dogma
>>
>>Hello All,
>> While clearing some junk out of the basement recently I came=20
>>across a gear which I made from scraps, decades before e-mail,(~1975=20
>>?) for stereoscopic viewing of air photos. It consisted of two=20
>>mirrors held 7" apart in slots cut at a 45 degree angle in thin=20
>>boards, one mirror facing up & one down. A low table lamp is required=20
>>so that the portion of air photo below the down facing mirror is=20
>>illuminated.
>> In use, the area of interest was placed below the down facing=20
>>mirror and a full size image would then appear in the up facing=20
>>mirror. For purposes of visualization let the down facing mirror be on=20
>>the left. The corresponding area of the second air photo would then be=20
>>placed one eye spacing to the right of the up facing mirror. If the=20
>>photos are arranged with edges parallel then the whole assembly can be=20
>>moved around without adjustment.
>> For viewing I used two cheap reading lenses about 2" in diameter.=
=20
>>Tilting one or both a bit, one over the up mirror, one over the right=20
>>air photo enabled fine distance adjustment for stereoscopic viewing.
>>
>> With this long preamble out of the way, and with likely most=20
>>naturensers reading something else, I can now get to the point.
>> A few years after I joined Naturens the subject of expensive=20
>>stereoscopic viewers came up and I mentioned having designed and made=20
>>this device from disposables.
>> Observation: it worked fine even for those who had never=20
>>previously seen stereoscopic images of air photos.
>> Dogma: someone chimed in with the objection "that can't possibly=20
>>work."
>>
>> I have noticed this conflict between observation and dogma many=20
>>times on Naturens, especially in recent posts with respect to Old=20
>>Growth and wildlife e.g Moose. Over the years I have walked over a lot=20
>>of woodland, sometimes for hunting but mostly for the fun of seeing=20
>>what was over the next rise etc. And without exception, woodland of=20
>>large widely spaced trees is country either avoided by animals or=20
>>crossed in a bee line. Disturbed cover, on the other hand, clearcut or=20
>>selectively cut by human, by wind throw or by Spruce Budworm quickly=20
>>become more alive. Former Beave