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Chockstone Forum - General Discussion

General Climbing Discussion

 Page 1 of 2. Messages 1 to 20 | 21 to 23
Author
Brush Tailed Rock Wallaby Release in Grampians
Access T CliffCare
13-Nov-2008
10:29:41 AM

Hi All,

As some of you may have been aware, there has been a captive breeding program for the Brush Tailed Rock Wallaby in place for quite a while now with the future plan to release them back into the Grampians. A number of locations were researched to find the best environment for a hopefully, successful reintroduction.

10 were released yesterday (one with pouch young) in the Moora Moora Creek area. This is great news for the wallabies but the downside is that climbing, as well as all other activies will not be permitted in that area until further notice. This is to give them the best possible chance of survival. So Western Bloc, Eastern Wall etc will be off limits. I will update with further information as I have it.

Cheers,

Tracey

evanbb
13-Nov-2008
10:36:17 AM
Good news. A similar program has been running at Jenolan Caves. I think they were brushtailed as well.

Is there a 1080 program going on in conjunction? Foxes like eating wallabies.
Access T CliffCare
13-Nov-2008
10:40:20 AM
On 13/11/2008 evanbb wrote:
>Good news. A similar program has been running at Jenolan Caves. I think
>they were brushtailed as well.
>
>Is there a 1080 program going on in conjunction? Foxes like eating wallabies.

Not sure of that 1080 number but yes, some removal techniques were employed couple of weeks ago. One of the reasons that particular area was chosen for the wallabies because at least it has areas of possible protection and escape from predators.

evanbb
13-Nov-2008
10:52:52 AM
1080 is a poison found in some native plants, so most of the native animals are quite tolerant of it. To get rid of wild dogs (and annoying domestic ones) and foxes, you bait a piece of meat with 1080 and drop it in the bush. Fox eats meat and dies. It's a really good system, as most of the natives can tolerate the poison, and we have very few carnivores.

IdratherbeclimbingM9
13-Nov-2008
10:57:24 AM
Does a residual component remain in the dead carcass?

I have heard bad things about certain chemicals affecting the eggshells of our native birds of prey after eating 'contaminated' food.

shamus
13-Nov-2008
11:13:45 AM
Chemicals affecting eggshells are a different class altogether, and are mostly slowly-accumulated and very long-lived in the environment. 1080 is broken down readily by bacteria or animals that survive poisoning, and even if some were ingested by birds of prey, birds are inherently resistant.

evanbb
13-Nov-2008
11:30:22 AM
The big problem with egg shells was DDT. Some of the raptors got pounded by it, because of the whole bio-accumulation thing. Big birds at the top of the chain, eating things that ate lots of other little things that had eaten DDT. Same happens with Tuna and mercury. Hence the statement that the smaller, oily fish are best for you (sardines and the like.)
john s
16-Nov-2008
3:04:48 PM
>Not sure of that 1080 number but yes, some removal techniques were employed
>couple of weeks ago. One of the reasons that particular area was chosen
>for the wallabies because at least it has areas of possible protection
>and escape from predators.

Yep. The fox baiting has been going on for years but was ramped up a lot after the fires to protect the local critters that hadn't been fried and to get ready for the wallaby release. Fox numbers are way down.
Atomic_Tomatoes
16-Nov-2008
4:23:35 PM
Some information on 1080 from Vic gov site.

It has been used for more than 50 years to control rabbits, foxes, dogs & pigs.

1080 can be administered at specific dose rates - making it more target-specific and less hazardous to non-target animals and the environment, especially when compared to other poisons such as strychnine.
Bait materials are impregnated with selected concentrations of 1080, taking into consideration for the target species factors such as lethal dose rates, body weights, and the amount of bait material likely to be consumed. These factors will vary between species and
between individuals within any species. By using techniques such as stipulating a specific bait type and size, the potential danger to non-target species is kept to a minimum.

1080 Bait
What types of perishable baits are legally available in Victoria?
-Carrot bait for rabbit control
-liver bait for wild dog & fox control
-meat (boneless, red meat) for wild dog control.

Secondary poisoning can occur to carnivores who have eaten the affected carcass. Like Evan has said Birds have a higher resistance.
Doemestic Dogs and Cats are more likely to killed by secondary poisoning.

From Tasmania Government Website
http://www.dpiw.tas.gov.au/inter.nsf/WebPages/RPIO-4ZM7Cx?open
1080 has been used to kill Wallabies and Possums for years in Tasmania

According to this CSIRO webpage it was also trialled in new Zealand to kill Tammar Wallabies.
http://www.publish.csiro.au/paper/WR9900541.htm

jjobrien
17-Nov-2008
8:54:29 AM
Just btw.
I'm told that Ratsak is particularly bad stuff.
The rat eats it, staggers out into the open, gets eaten by a hawk/eagle, and the bird cops it.
Or they get got by a snake or lizzard with the same results.
Lesson: use traps.
tastybigmac
17-Nov-2008
9:29:07 AM
will i die if i eat the carcass of a 1080'd animal? a free feed is a free feed

evanbb
17-Nov-2008
9:38:31 AM
Probably not, but you might get sick. A fatal dose for a dog weighing 15kg should hopefully not be fatal for a human weighing what ever you weigh...

Ratsak is pretty bad, but it doesn't accumulate very much. The active ingredient is Warfarin (sp?), which is a blood thinning medication used for heart patients. In rats, which are picky eaters, they eat these baits that taste good, and don't notice anything going on. So they come back and eat more, and more. Until their blood is that thin that they start bleeding internally. Then they get thirsty cos they've lost all this fluid. So, they leave your house in a mad search for water and die somewhere else.

It hangs around in the animal, but you'd (if you're an owl) need to eat a lot of dead rats to get poisoned yourself. Fortunately, lots of the big predators (Powerful Owls, the Falcons and Eagles) even cats, don't each much food that's already dead, preferring the thrill of a hunt. Owls and raptors have eyes designed to see movement, so they look for moving things, rather than dead ones. I reckon it'd be a big problem for vultures/condors that like carrion, or for Wedge Tailled eagles if they started poisonning road killed Roos. DDT was much worse because they only need a little dose to have bad effects (egg shell thinning), it hangs around EVERYWHERE for ages and was sprayed on paddocks.

Paulie
18-Nov-2008
9:22:51 AM
On 13/11/2008 Access T wrote:
>...there has been a captive breeding program for the Brush Tailed Rock Wallaby in >place for quite a while now with the future plan to release them back into the >Grampians...10 were released yesterday (one with pouch young) in the Moora Moora >Creek area.

Tracey, are these wallabies genetically endemic to the area or are they from a different gene pool?

Pat
18-Nov-2008
9:50:08 AM
On 17/11/2008 tastybigmac wrote:
>will i die if i eat the carcass of a 1080'd animal? a free feed is a free
>feed

If you are going to eat the carcass of a 1080'd dead fox, can you let us know. I might even pay to see it.
john s
24-Nov-2008
12:35:32 PM
On 18/11/2008 Paulie wrote:

>... are these wallabies genetically endemic to the area or are they
>from a different gene pool?

They are from different stock... The last endemic Grampians colony of BTRW (that lived around Muline) dropped to just a single female by around 2001. She was captured and taken to Tidbinbilla where, I think, she died.

The individuals released near Moora are from various genetic backgrounds and were bred in Adelaide Zoo, Healesville and Tidbinbilla.

Apparently, there is a lot of genetic diversity even within the small wild populations in southern Australia because the animals generally don't move very far and so even nearby colonies have developed distinct genetics over time.

There is a good e-newsletter put out regularly by the BTRW Recovery Team. You can get on the mailing list by contacting Lucy.Clausen@dse.vic.gov.au

tastybigmac
24-Nov-2008
9:33:32 PM
i will let you know when i eat one

Macciza
24-Nov-2008
9:44:22 PM
On 24/11/2008 john s wrote:

>The individuals released near Moora are from various genetic backgrounds
>and were bred in Adelaide Zoo, Healesville and Tidbinbilla.
>
Australia Says No! To Genetically Modified Rock Wallabies!
Keep Rock Wallabies In The Ground - Cull Kangaroos Instead!
We actually captured the the female you are talking about!
In order for her release we demand that you listen to our list of demands!
john s
25-Nov-2008
7:26:16 PM
... let the wallaby go and we'll provide a free ticket for you to leave town by your choice of tram ...
kieranl
25-Nov-2008
7:41:31 PM
On 25/11/2008 john s wrote:
>... let the wallaby go and we'll provide a free ticket for you to leave
>town by your choice of tram ...
Have you started working for the Vic govt now John? That sounds like an offer they would make : a great choice except 1. the trams are full 2. there's no tram coming if you live in NSW.
Access T CliffCare
14-Dec-2008
9:09:08 PM

Hi All,

Have put some updates about the BTRW progress on the VCC website

http://www.vicclimb.org.au/Site/index.php?location=cliffCare

Unfortunately, due to rockfall, one male has died. Apart from that, it appears to be going well.

Cheers,
Tracey

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There are 23 messages in this topic.

 

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