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Article #7171

Re: Frog declines indication of ozone depletion

#7171
From: Andrew Taylor
Date: Wed, 19 Apr 1995 00:00
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joecool@vnet.net (Zack Sessions) writes:
> No, all species of frogs MUST lay their eggs in water.

Its typical that frogs lay their eggs in water but there are plenty of
exceptions.  A number of Australian frog species have completely
terrestial life cycles.

Most exceptional are (or were) the two species of Gastric Brooding Frog
which swallowed their eggs and the larvae devloped in the female
stomach.  Although only recently discovered both species seem to have
become extinct - probably the most important casualties of the global
amphibian decline.

Many of the worst affected frogs in Australia including the two Gastric
Brooding species are forest species.  So UV levels are unlikely to be
the cause in these cases.

I took part in a frog survey with some experts a month ago.  Its very
sobering to realise

a) How little we know of the status of many species b) How bad the
indications are from this little information we have.

Andrew Taylor
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From: Andrew Taylor <andrewt>
Subject: Re: Frog declines indication of ozone depletion
Date: 1995/04/19
Message-ID: <3n29h7$hie@mirv.unsw.edu.au>
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organization: Phytodiagnostic Software Group, CSE, UNSW, Australia
newsgroups: ca.environment,sci.environment,talk.environment