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Index of Subjects --Apple-Mail-465-596399543 Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Hi Steve, Although many frogs are green in varying degrees, the Green Frog (Rana clamitans) is a species unto itself. It is superficially similar to the Bull Frog (Rana catesbeiana) (although smaller), but has a dorso- lateral fold running down the back from the tympanum (ear). It's vocalization is quite different from that of either Bull or Leopard frogs. Cheers, Chris On 28-Jul-08, at 3:53 PM, Stephen Shaw wrote: > 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 > > Quoting Ken McKenna <kenmcken@eastlink.ca>: >> Ken McKenna >> Box 218 Stellarton NS >> B0K 1S0 >> 902 752-7644 >> Hi Randy and Liz >> Randy is correct. I believe the frogs in McGee Pond are Green >> Frogs. They look quite a bit like Bullfrogs. During the Herp atlas >> I had a single bullfrog in Pictou Co.between Pictou and River John. >> They are nearby in Colchester in the Tatamagoughe area and south in >> Guysborough Co., but still not common to have bullfrogs in Pictou >> Co. I heard a bullfrog somewhere in northern Guysborough this >> summer while doing the bird atlas. >> cheers >> Ken >> ----- Original Message ----- >> From: Randy Lauff >> To: naturens@chebucto.ns.ca >> Sent: Sunday, July 27, 2008 2:43 PM >> Subject: Re: [NatureNS] Frog over-population? >> >> >> These are Green Frogs, Liz. >> >> Our only tree frogs are the spring peeper...a very small frog. >> Bullfrogs are not listed as being present in Pictou County >> according to Gilhen's book (1984). Perhaps all the effort of >> volunteers a few years ago in doing the Herp Atlas came up with >> reliable sightings for Pictou (or Antigonish). I get a number of >> folks every year telling me of Bullfrogs up my way - only once have >> they turned out to be Bullfrogs (normally, they're Green Frogs) - >> and these were just over the Antigonish border into Guysborough >> County. >> >> And we could be so fortunate to have an overpopulation of frogs! >> >> Randy >> >> >> 2008/7/27 Elizabeth Doull <edoull@ns.sympatico.ca> >> >> Wednesday, July 23, 2008 >> >> There were at least 22 frogs in MacGee Pond in Big Island! All >> of them were sporting a bright yellow breast, reminding me of >> Yellow breasted Chats. Which species? They could be either Tree >> or Bull Frog? They were large. Some of them had light brown backs >> while the others had green back. >> >> Cheers, liz >> >> >> _________________________________ >> RF Lauff >> Way in the boonies of >> Antigonish County, NS. >> > > > > -- > Stephen R. Shaw Ph.D. > Dept of Psychology & Neuroscience > Dalhousie University > 1355 Oxford Street > Halifax, Nova Scotia, Canada B3H 4J1 > e-mail: srshaw@dal.ca > phone: 1-902-494-2886 > fax: 1-902-494-6585 > > Christopher Majka Nova Scotia Museum, 1747 Summer St., Halifax, Nova Scotia, Canada B3H 3A6 c.majka@ns.sympatico.ca --Apple-Mail-465-596399543 Content-Type: text/html; charset=US-ASCII Content-Transfer-Encoding: quoted-printable <html><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; = -webkit-line-break: after-white-space; ">Hi = Steve,<div><br></div><div>Although many frogs are green in varying = degrees, the Green Frog (<i>Rana clamitans</i>) is a species unto = itself. It is superficially similar to the Bull Frog (<i>Rana = catesbeiana</i>) (although smaller), but has a dorso-lateral fold = running down the back from the tympanum (ear). It's vocalization is = quite different from that of either Bull or Leopard = frogs.</div><div><br></div><div>Cheers,</div><div><br></div><div>Chris</di= v><div><br><div><div>On 28-Jul-08, at 3:53 PM, Stephen Shaw = wrote:</div><br class=3D"Apple-interchange-newline"><blockquote = type=3D"cite"><div>OK but what's a "green frog"?<br>I think this = nomenclature started on this current thread with Jim, but as = a<br>resident alien species (me not the frog), I'd not heard that name = before. 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? If it is the same species<br>(R. pipiens), is = Green Frog a colloquial name restricted to the Maritimes? = 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 th