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Author Topic: What is the world population of mammals?  (Read 6788 times)

Offline imd321

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What is the world population of mammals?
« on: 22/01/2010 07:15:53 »
Does anyone know how many mammals there are in the world, excluding humans?


 

Offline Don_1

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What is the world population of mammals?
« Reply #1 on: 22/01/2010 10:59:50 »
There are 4600+ species of mammals of which just over 20% are bats.

The total number of individuals, I would not even hazard a guess.
 

Offline EatsRainbows

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What is the world population of mammals?
« Reply #2 on: 23/01/2010 23:18:00 »
The total number of individuals i think is unknown. Eg I was watching a wildlife doco last night and they were talking of a species of antelope in Africa and it was mentioned that it is not known precisely how many of them there are.
 

Cecilie

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What is the world population of mammals?
« Reply #3 on: 04/02/2010 13:06:15 »
why were there no mammals in NZ at the time of Evolution
 

Offline EatsRainbows

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What is the world population of mammals?
« Reply #4 on: 06/02/2010 07:39:35 »
When you say "time of evolution" you mean Gondwana I assume?

I just happen to have here beside me an encyclopedia of the New Zealand natural world... it says that when NZ split from Australia it "carried with it" "ancestors of primitive mammals such as platypuses and echidnas" and that "one of the enduring mysteries of New Zealand biogeography is the fate of these. Why did these egg laying mammals survive in Australia but not New Zealand?"

So I suppose, ancestors of mammals did not survive for unknown reasons, therefore, no mammals! I know that absence of mammals led to birds becoming flightless and many becoming very large, ie moa - because there were no mammalian land predators. No mammals is key to the unique flora and fauna of the country.

(p.s, why does spell check not like 'moa' and 'Gondwana'?  I suppose brits have never heard of either of these...? hehehe)
« Last Edit: 06/02/2010 07:42:18 by EatsRainbows »
 

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What is the world population of mammals?
« Reply #4 on: 06/02/2010 07:39:35 »

 

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