[NatureNS] Frog over-population?

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Date: Mon, 28 Jul 2008 17:02:19 -0300
From: "Randy Lauff" <randy.lauff@gmail.com>
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remarked earlier.&lt;br&gt;&lt;br&gt;On th
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Steve,

The Green Frog is *Rana clamitans* (
http://commons.wikimedia.org/wiki/Image:Green_Frog_Rana_clamitans_2448px.jpg).
It is relatively common (up my way anyway) and is easily localized by its
banjo-like call. The Green Frog is more aquatic than the Leopard Frog, which
I routinely find on land.

Ribbit!


2008/7/28 Stephen Shaw <srshaw@dal.ca>

> OK but what's a "green frog"?
> I think this nomenclature started on this current thread with Jim, but as a
> resident alien species (me not the frog), I'd not heard that name before.
>  Do
> you mean the usually-named Northern Leopard Frog (Rana pipiens), aka meadow
> or
> grass frog, or is Green Frog a different species?  If it is the same
> species
> (R. pipiens), is Green Frog a colloquial name restricted to the Maritimes?
>  On
> the appropriateness of the name if it is the same as R. pipiens, the base
> colour (on which there are usually spots superimposed) often is not green
> but
> light brown, as someone else remarked earlier.
>
> On the original question of overpopulation, R. pipiens has almost
> disappeared in
> western Canada (BC and AB) since the 70s, but seems not to be threatened in
> central Canada; not sure about the Maritimes. The cause of western decline
> in
> this particular species seems uncertain from the little I've read.  Maybe
> also
> a chytrid (spelling?) problem spread originally from clawed frog Xenopus to
> other amphibians, or else a debilitating trematode parasite?  Does anyone
> on
> NNS have specialist info on the cause of decline for this species, as
> opposed
> to that for amphibians generally, worldwide?
> Steve


Randy
'gonish.

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<div dir="ltr"><div>Steve,</div>
<div>&nbsp;</div>
<div>The Green Frog is <em>Rana clamitans</em> (http://commons.wikimedia.org/wiki/Image:Green_Frog_Rana_clamitans_2448px.jpg). It is relatively common (up my way anyway) and is easily localized by its banjo-like call. The Green Frog is more aquatic than the Leopard Frog, which I routinely find on land.</div>

<div>&nbsp;</div>
<div>Ribbit!</div>
<div><br>&nbsp;</div>
<div class="gmail_quote">2008/7/28 Stephen Shaw <span dir="ltr">&lt;srshaw@dal.ca&gt;</span><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">OK but what&#39;s a &quot;green frog&quot;?<br>I think this nomenclature started on this current thread with Jim, but as a<br>
resident alien species (me not the frog), I&#39;d not heard that name before. &nbsp;Do<br>you mean the usually-named Northern Leopard Frog (Rana pipiens), aka meadow or<br>grass frog, or is Green Frog a different species? &nbsp;If it is the same species<br>
(R. pipiens), is Green Frog a colloquial name restricted to the Maritimes? &nbsp;On<br>the appropriateness of the name if it is the same as R. pipiens, the base<br>colour (on which there are usually spots superimposed) often is not green but<br>
light brown, as someone else remarked earlier.<br><br>On the original question of overpopulation, R. pipiens has almost disappeared in<br>western Canada (BC and AB) since the 70s, but seems not to be threatened in<br>central Canada; not sure about the Maritimes. The cause of western decline in<br>
this particular species seems uncertain from the little I&#39;ve read. &nbsp;Maybe also<br>a chytrid (spelling?) problem spread originally from clawed frog Xenopus to<br>other amphibians, or else a debilitating trematode parasite? &nbsp;Does anyone on<br>
NNS have specialist info on the cause of decline for this species, as opposed<br>to that for amphibians generally, worldwide?<br>Steve</blockquote>
<div>&nbsp;</div>
<div>Randy</div>
<div>&#39;gonish.</div></div></div>

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