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Hi Mary & All, Nov 20, 2010
Based on the geology of the area one would expect a good assortment =
of rare to uncommon plants that are associated with rich hardwoods, =
gypsum, limestone and basic bedrock. Most of the names escape me now =
because the memories are up to 55 years dim, but certainly hepatica and =
ram's head would be among these.=20
The difficulty is finding such plants because, if I understand your =
area correctly, you don't have obvious hot spots such as seepy rock =
outcrops, ravines or waterfalls and must cover ground, like a one-person =
search & rescue operation, until you find something. So congratulations =
on having brought interesting material to light.=20
Chance favours the prepared mind, as the quote goes (which I can't =
locate), but it also helps to be on the lookout for any uncommon animal =
or vegetable; as you do.
Yt, Dave Webster, Kentville =20
=20
----- Original Message -----=20
From: Mary Macaulay=20
To: Nature Nova Scotia=20
Sent: Friday, November 19, 2010 10:46 PM
Subject: [NatureNS] disjunct species at Angevine vs Northumberland =
Coastal Plain
Yes there seem to be an unusual number of disjunct species at Angevine =
Lake, and I am not just referring to flora. Some, for example, =
Polygonum arifolium, have been found elsewhere along the strait. =
However, the ram's head population, the hepatica population and at least =
3 globally rare species of dragonfly do not appear to be anywhere in the =
region - as yet. The lake also has, to this date, the highest recorded =
biodiversity of herp species in NS. There are several theories why such =
unusual diversity is found at the lake. I will discuss at the talk. One =
reason (but not the only one) is that it seems to straddle 4 or 5 mini =
ecozones. The lake is fed and feeds out to a short tidal river into the =
strait. It is little known that Atlantic salmon still travel the river. =
They used to be in the lake but the lake was dammed and the anadromous =
population was netted out in the 50's. I originally thought that =
Angevine typically represented the Northumberland Coastal Plain, and =
that this region was neglected by the experts and that was the reason =
why the species found at the Lake seemed to surprise everyone. However, =
I believe since then there has been much more work done but, as far as I =
know, the Lake still stands as unusually biodiverse. Schofield mainly =
confined himself to the aquatic flora of the lake and was the first to =
document these very interesting findings and they are listed in Rolands =
under Dewar Lake which is another name for Angevine. I don't purport to =
be an expert at botany which is why every time I found something odd I =
invited several botanists to come down to look. Sean, Ruth and Marion =
did and took specimens, records etc. DNR also came out each time to =
document the botanical findings. Charlie, Heather, Joan, Carl and others =
from the Wild Flora group also came several times to have a look around. =
The dragonflies I first identified by photographing them. These =
identifications were then corroborated by Paul Brunelle, who is an =
expert, using actual specimens. The herps were done in partnership with =
the herp atlas and corroborated with photos. Sadly I am a lousy birder =
so the ornithological component is missing. We have made a start on the =
butterflies too. The Lichens are amazing at Angevine and I could use =
some help with those! It is a wonderful place for a naturalist to =
explore. I can almost count on finding something I've never seen before =
on every outing. But there is a back story.=20
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<DIV><FONT face=Arial>Hi Mary & All,
Nov 20, 2010</FONT></DIV>
<DIV><FONT face=Arial> Based on the geology of the area one
would expect a good assortment of rare to uncommon plants that are
associated with rich hardwoods, gypsum, limestone and basic bedrock.
Most of the names escape me now because the memories are up to 55 years dim, but
certainly hepatica and ram's head would be among these. </FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial> The difficulty is finding such plants
because, if I understand your area correctly, you don't have obvious hot spots
such as seepy rock outcrops, ravines or waterfalls and must cover
ground, like a one-person search & rescue operation, until you find
something. So congratulations on having brought interesting material to
light. </FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial> Chance favours the prepared mind, as
the quote goes (which I can't locate), but it also helps to be on the
lookout for any uncommon animal or vegetable; as you do.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Yt, Dave Webster, Kentville </FONT></DIV>
<DIV><FONT face=Arial> </FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=marymacaulay@hotmail.com href="mailto:marymacaulay@hotmail.com">Mary
Macaulay</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=naturens@chebucto.ns.ca
href="mailto:naturens@chebucto.ns.ca">Nature Nova Scotia</A> </DIV>
<DIV style="FONT: 10pt arial