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Hi Jim & All, Apr 5, 2014
Thanks for the reminder about this Jim. Will view it by computer on =
CBC one of these days.
But I think the account of the Mammoths is viewed throught the wrong =
end of the telescope.=20
No doubt good old humans have done a great job of destroying things =
in the last 60 years, and have had some impact in the previous 50,000 or =
so, but anyone who has hunted or comprehends predator-prey relationships =
will know that stone age hunters did not exterminate Mammoths and other =
Pleistocene mammals. Then as now habitat determines survival.=20
And it takes a leap of blind faith to imagine that subtracting =
Mammoths will cause grassland to change to boggy tundra. At about this =
same time the grassland habitat of the Hairy Mammoth also became boggy =
as many intact specimens, swallowed by the bog, testify.=20
It seems clear, at least superficially, that climate change =
triggered the widespread extinctions and this is consistent with the =
change of grassland to boggy tundra, presumably triggered by greater =
ppt. relative to evapotranspiration.
Yt, Dave Webster, Kentville
----- Original Message -----=20
From: James W. Wolford=20
To: NatureNS=20
Sent: Saturday, March 15, 2014 2:26 AM
Subject: [NatureNS] re Wild Canada, The Nature of Things last Thurs. =
eve.
Subject: [ValleyNature] re Wild Canada, The Nature of Things last =
Thurs. eve.
<snip>
The show mentioned that just after the last glaciers, mammoths kept =
the ground and vegetation as a vast grassland. Then came good old =
humans to change things, as they always do, here by destroying the =
mammoths and other Pleistocene mammals and helping to change the =
grassland into boggy tundra with different plants, which only caribou =
can deal with in large numbers.
_______________________________________________
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4336 / Virus Database: 3722/7197 - Release Date: =
03/14/14
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http-equiv=3DContent-Type>
<META name=3DGENERATOR content=3D"MSHTML 8.00.6001.23569">
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<BODY=20
style=3D"WORD-WRAP: break-word; -webkit-nbsp-mode: space; =
-webkit-line-break: after-white-space"=20
bgColor=3D#ffffff>
<DIV>Hi Jim & All, =
=20
=
=20
Apr 5, 2014</DIV>
<DIV> Thanks for the reminder about this Jim. =
Will view=20
it by computer on CBC one of these days.</DIV>
<DIV> </DIV>
<DIV> But I think the account of the Mammoths is =
viewed=20
throught the wrong end of the telescope. </DIV>
<DIV> </DIV>
<DIV> No doubt good old humans have done a great job =
of=20
destroying things in the last 60 years, and have had some impact in the =
previous=20
50,000 or so, but anyone who has hunted or comprehends predator-prey=20
relationships will know that stone age hunters did not =
exterminate Mammoths=20
and other Pleistocene mammals. Then as now habitat determines =
survival.=20
</DIV>
<DIV> </DIV>
<DIV> And it takes a leap of blind faith to imagine =
that=20
subtracting Mammoths will cause grassland to change to boggy tundra. At =
about=20
this same time the grassland habitat of the Hairy Mammoth also became =
boggy as=20
many intact specimens, swallowed by the bog, testify. </DIV>
<DIV> </DIV>
<DIV> It seems clear, at least superficially, that =
climate=20
change triggered the widespread extinctions and this is consistent with =
the=20
change of grassland to boggy tundra, presumably triggered by greater =
ppt.=20
relative to evapotranspiration.</DIV>
<DIV>Yt, Dave Webster, Kentville</DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; =
PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"=20
dir=3Dltr>
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: =
black"><B>From:</B>=20
<A title=3Djimwolford@eastlink.ca =
href=3D"mailto:jimwolford@eastlink.ca">James W.=20
Wolford</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dnaturens@chebucto.ns.ca=20
href=3D"mailto:naturens@chebucto.ns.ca">NatureNS</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Saturday, March 15, 2014 =
2:26=20
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [NatureNS] re Wild =
Canada, The=20
Nature of Things last Thurs. eve.</DIV>
<DIV><BR></DIV><BR>
<DIV>
<BLOCKQUOTE type=3D"cite">
<DIV style=3D"MARGIN: 0px"><FONT style=3D"FONT: 12px Helvetica; =
COLOR: #000000"=20
color=3D#000000 size=3D3 face=3DHelvetica><B>Subject: =
</B></FONT><FONT=20
style=3D"FONT: 12px Helvetica" size=3D3 =
face=3DHelvetica><B>[ValleyNature] re Wild=20
Canada, The Nature of Things last Thurs. eve.</B></FONT></DIV>
<DIV style=3D"MARGIN: 0px; MIN-HEIGHT: 14px"><snip><BR></DIV>
<DIV style=3D"MARGIN: 0px"><FONT style=3D"FONT: 16px Helvetica" =
size=3D5=20
face=3DHelvetica>The show mentioned that just after the last =
glaciers,=20
mammoths kept the ground and vegetation as a vast grassland. =
Then came=20
good old humans to change things, as they always do, here by =
destroying the=20
mammoths and other Pleistocene mammals and helping to change the =
grassland=20
into boggy tundra with different plants, which only caribou can deal =
with in=20
large numbers.</FONT></DIV>
<DIV=20
style=3D"MARGIN: =
0px">_______________________________________________</DIV></BLOCKQUOTE></=
DIV><BR><A></A>
<P align=3Dleft color=3D"#000000" avgcert??>No virus found in this=20
message.<BR>Checked by AVG - <A=20
href=3D"http://www.avg.com">www.avg.com</A><BR>Version: 2014.0.4336 / =
Virus=20
Database: 3722/7197 - Release Date: =
03/14/14</P></BLOCKQUOTE></BODY></HTML>
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