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Article #7171Re: Frog declines indication of ozone depletion
From: Andrew Taylor
Date: Wed, 19 Apr 1995 00:00
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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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10607c,25abf7f79976320a X-Google-Attributes: gid10607c,public X-Google-Thread: 10df74,25abf7f79976320a X-Google-Attributes: gid10df74,public X-Google-Thread: fb58e,25abf7f79976320a X-Google-Attributes: gidfb58e,public From: Andrew Taylor <andrewt> Subject: Re: Frog declines indication of ozone depletion Date: 1995/04/19 Message-ID: <3n29h7$hie@mirv.unsw.edu.au> X-Deja-AN: 101126757 references: <3m3g3n$p0k@server.st.usm.edu> <3m46e9$36f@triton.unm.edu> <granholm.33.2F88760B@direct.ca> organization: Phytodiagnostic Software Group, CSE, UNSW, Australia newsgroups: ca.environment,sci.environment,talk.environment