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All Australasian Mammals are Marsupials - NOT

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tchrist
752506.  Sat Oct 16, 2010 6:55 pm Reply with quote

Zebra57 wrote:
In Australia the 75 species of bats constitute the only non placental mammals.

I think you have one non too many there—or too few.

--tom

 
Zebra57
752507.  Sat Oct 16, 2010 6:58 pm Reply with quote

you are quite correct tc thanks

 
suze
752510.  Sat Oct 16, 2010 7:03 pm Reply with quote

Is the statement true, in any case?

We are told that - with the exception of those bats and the two kinds of monotreme - all mammals native to Australia are marsupials. Now I'll accept that the various mammals introduced since Western colonization are not native - so cattle, rabbits, sheep, cats, and so on.

But what about the dingo? It is not a marsupial, and it was present in Australia long before Western discovery.

 
Zebra57
752516.  Sat Oct 16, 2010 8:04 pm Reply with quote

It depends on the definition of "native". The dingo was introduced by the Aboriginal people and researchers reckon could account for the disappearance of the Thylacine on the Australian mainland.

 
Dr. Know
752519.  Sat Oct 16, 2010 8:12 pm Reply with quote

Quote:
all mammals native to Australia are marsupials.



And therefore, not mammals?

 
Alfred E Neuman
752706.  Sun Oct 17, 2010 12:44 pm Reply with quote

Dr. Know wrote:
Quote:
all mammals native to Australia are marsupials.



And therefore, not mammals?


Except for the fact that marsupials are mammals, yes.

 
do.fisher!
765956.  Thu Dec 09, 2010 8:11 am Reply with quote

We have two monotremes (platypus and short-beaked echidna), 75 species of native bats and 60 native rodents. 45% of land mammal species in Australia are bats or rodents (eutherians = placentals) (bats- http://www.allenandunwin.com/default.aspx?page=94&book=9781741754612 , rodents- http://www.publish.csiro.au/pid/5695.htm). These are all mammals. Most of them are quite interesting.

For example, I like giant white-tailed rats. They are tree-dwelling rainforest animals the size of a cat, some hang around campsites and have learned that tins have food. They now open tins they find in camper's food supplies using their teeth (scary incisors). Stick-nest rats are large desert rodents with long soft fur like a chinchilla. They live in groups and construct huge woven nests with tunnels through them out of sticks over many generations. The two species are extinct on the mainland, but one survives on an island. Ghost bats are large, pure white, desert and savanna carnivorous bats with big ears and eyes, they are also rare and declining. They mainly eat other bats, also frogs and lizards.

Up to series three episode three here, it's great to see there are so many more to look forward to.

 
samivel
765960.  Thu Dec 09, 2010 8:19 am Reply with quote

Another Aussie newbie. It's an invasion!

Welcome :)

 
Jenny
766065.  Thu Dec 09, 2010 7:21 pm Reply with quote

Welcome do.fisher :-)

 
Zebra57
766273.  Fri Dec 10, 2010 6:36 pm Reply with quote

G'day

 
monzac
766310.  Sat Dec 11, 2010 12:05 am Reply with quote

Yay Aussie invasion \O/

G'day do.fisher, welcome :)

 
plinkplonk
767295.  Wed Dec 15, 2010 6:58 am Reply with quote

NZMoggy wrote:
Here in New Zealand we only have one native land mammal and its a bat - a very small bat at that.


What about humans? And bats can't be thought of as land mammals, can they?

 
Chowchilla
902149.  Mon Apr 16, 2012 1:06 pm Reply with quote

do.fisher! wrote:
We have two monotremes (platypus and short-beaked echidna), 75 species of native bats and 60 native rodents. 45% of land mammal species in Australia are bats or rodents (eutherians = placentals) (bats- http://www.allenandunwin.com/default.aspx?page=94&book=9781741754612 , rodents- http://www.publish.csiro.au/pid/5695.htm). These are all mammals. Most of them are quite interesting.


Up to this point I was wondering when someone was going to mention the native rodents we have here. They are believed to have come to Australia after it split from Gondwanaland and radiated into dozens of species.

Here in Cairns we have White-tailed Rats, Prehensile-tailed Rats, Fawn-footed Melomys and no doubt many other species.

Rodents are an important part of most of Australia's ecosystems. A bird (the Letter-winged Kite) is heavily dependent on fluctuating populations of Long-haired Rats (another native species) and will rapidly increase in numbers in response to population eruptions of said rat. At these times the Kites may disperse coastwards and turn up hundreds of kms from their normal breeding areas.

 
Chowchilla
902150.  Mon Apr 16, 2012 1:08 pm Reply with quote

plinkplonk wrote:
NZMoggy wrote:
Here in New Zealand we only have one native land mammal and its a bat - a very small bat at that.


What about humans? And bats can't be thought of as land mammals, can they?

'Land Mammals' in this context refers to terrestrial species as opposed to marine ones. So whilst bats can fly, they would fit this definition.

 
tuttledvd
1234563.  Tue Apr 18, 2017 8:37 am Reply with quote

Bats are mammals which are unique of their kinds; they carry a strange aggressive look for which people think of them as scary creatures. But they are very gentle creatures and are helpful to our environment. So building a bat house and installing it close to your home can lead to good conservation and maintain a healthy natural environment in your surrounding area.

Personally, I've been using a very helpful resource for my bat house building plans. You may check it out here: http://www.merlintuttle.com/bat-house-builders-handbook

 

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