Stephen,
Perhaps sodium fluoroacetate is attracted to bone structure, so as to provide a
readily available source of F for bone growth and regeneration? What do you
think?
Cheers,
Carl Clifford
Sent from my iPad
On 16/05/2012, at 18:30, "Stephen Ambrose" <> wrote:
> Thanks Clifford, I thought that may be the case. But it doesn't explain how
> sodium fluoroacetate can be stored in the bones of Bronzewing Pigeons,
> unless there is rapid uptake by the bones, i.e. before the compound is
> broken down.
>
> I also recall from the time when I was a student at the University of WA
> (late 1970s/early 1980s) there was some research that suggested secondary
> poisoning from 1080 was responsible partly for the decline in the abundance
> of the Little Eagle in South-western Australia. I don't know if that finding
> was eventually debunked. If it wasn't, perhaps secondary poisoning occurred
> as a result of the consumption of the prey's entrails where the 1080 had not
> yet been fully digested/broken down.
>
> Kind regards,
> Stephen Ambrose
>
>
> -----Original Message-----
> From:
> On Behalf Of Carl Clifford
> Sent: Wednesday, 16 May 2012 5:08 PM
> To: Stephen Ambrose
> Cc: Birding Aus
> Subject: Re: [Birding-Aus] Poisonous Aussie birds.
>
> Stephen,
>
> Sodium fluoroacetae, AKA 1080, breaks down very quickly once ingested, and
> has an extremely low risk of secondary poisoning. Very hard to detect post
> mortem, very bad for rich Grannies and Aunties.
>
> Cheers,
>
> Carl Clifford
>
> Sent from my iPad
>
> On 16/05/2012, at 14:06, "Stephen Ambrose" <> wrote:
>
>> The poison in Gastrolobium is sodium fluoroacetate (also known as 1080).
> In
>> Australia, natural occurrences of sodium fluoroacetate occurs mostly in
>> Gastrolobium species, and nearly all species in this genus are restricted
> in
>> distribution to South-western Australia. Twigg & King (1991) found that
>> Emus also had a high tolerance to the poison when feeding on Gastrolobium
>> seeds, but I don't know if it accumulates in the Emu's body, is
> metabolised
>> or excreted.
>>
>> Stephen Ambrose
>> Ryde, NSW
>>
>> Reference:
>>
>> Twigg, L.E. & D.R. King (1991). The impact of fluoroacetate-bearing
>> vegetation on native Australian fauna: a review. Oikos 61: 412-430
>>
>>
>>
>>
>> -----Original Message-----
>> From:
>> On Behalf Of Steve Clark
>> Sent: Wednesday, 16 May 2012 9:49 AM
>> To: Sonja Ross; Birding Aus;
>> Subject: Re: [Birding-Aus] Bass Straight migrants and poisonous Aussie
> birds
>> - birdng myths?
>>
>> G'day Sonja and Anthea
>>
>> Thanks for your replies.
>>
>> I'm aware of the Gastrolobium poison bush in WA. Anthea has turned up
>> this reference
>>
>> http://www.publish.csiro.au/?act=view_file&file_id=MU942057.pdf
>>
>> which is good evidence that the pigeons accumulate poison from the
>> seeds of Gastrolobium bilobum in Western Australia.
>>
>> Further questions:
>>
>> Has anyone ever extracted poison from a Bronzewing and analysed it?
>> What is the situation in other parts of the Bronzewings' range?
>> Why are Pitohuis claimed to be the first known poisonous birds? This
>> article mentions others (including Bronzewings):
>>
>>
> http://nationalzoo.si.edu/Publications/ZooGoer/2001/2/intoxnewguineabirds.cf
>> m
>>
>> It seems that others were known or suspected earlier but the chemical
>> in Pitohui poison was the first to be identified.
>>
>> There appears to be no conclusive evidence that Flame Robins migrate
>> across Bass Strait unless Anthea can track down the unpublished
>> research of Balmford and Dennett. I wouldn't be at all suprised if
>> they do cross the Strait but it would be nice to have evidence.
>>
>> Cheers
>> Steve
>> ===============================
>>
>> To unsubscribe from this mailing list,
>> send the message:
>> unsubscribe
>> (in the body of the message, with no Subject line)
>> to:
>>
>> http://birding-aus.org
>> ===============================
>>
>> ===============================
>>
>> To unsubscribe from this mailing list,
>> send the message:
>> unsubscribe
>> (in the body of the message, with no Subject line)
>> to:
>>
>> http://birding-aus.org
>> ===============================
> ===============================
>
> To unsubscribe from this mailing list,
> send the message:
> unsubscribe
> (in the body of the message, with no Subject line)
> to:
>
> http://birding-aus.org
> ===============================
>
===============================
To unsubscribe from this mailing list,
send the message:
unsubscribe
(in the body of the message, with no Subject line)
to:
http://birding-aus.org
===============================
|
