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The Kgalagadi Quiz (OQ) - IPY

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DinkyBird
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The Kgalagadi Quiz (OQ) - IPY

Unread post by DinkyBird » Wed May 13, 2009 10:14 pm

People - be gentle with me please. I am crawling (as in baby, not drunk) into this intellectual part of the forum. It took me long enough to fathom how to start a quiz :redface:

But I am prepared to drag my name through the mud :roll: and invite others in nappies to join in here with me! Please, those of you who are so good at these, just act like you're clueless as to the answer for the first few posts :twisted:

So here goes!

Question 1:
The Camelthorn tree (Acacia erioloba) is a dominant tree in the Kalahari. How deep do its roots grow?

And a bonus for any other info on this tree.
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Re: The Kgalagadi Quiz - OQ

Unread post by Timepilot » Thu May 14, 2009 9:58 am

I seem to recall a figure of something like up to 60m deep for the tap root but that's about all I can remember. Or, did they change the name of this some time ago from girraffe or something?

And good oh on your quiz - you're now talking an area that I have'nt visited since the mid-80's so this will be interesting for me. :thumbs_up:
“ Every year elephants were becoming scarcer and wilder south of the Zambezi, so that it had become impossible to make a living by hunting at all. ” FC Selous 1881

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Re: The Kgalagadi Quiz - OQ

Unread post by wanderlust » Thu May 14, 2009 12:06 pm

Hi DB

Ok let me have a go - nappy and all!

I've read in "The Kalahari and it's plants" that the tap root system can develop up to a depth of 40m. A tree 10m high can produce up to 500kg of pods in a year - elephant in the northern Kalahari shake the trees to get to the pods. The seeds contain up to 33% protein.

The botanical name was previously Acacia giraffe. Erioloba refers to the wooly (erio) sickle-shaped (loba) pod.

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Re: The Kgalagadi Quiz - OQ

Unread post by annapangolin » Thu May 14, 2009 5:17 pm

They can grow to 15metres high. Do the roots really go 60m? That's incredible- i'll never look at one the same again...

Animals who eat the grey seed pods, end up tasting quite odd because of it.

In Botswana, they use the bark to treat headaches and lung problems.

Cool tree :)

So I have the KTP guide book on my lap... :redface:

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Re: The Kgalagadi Quiz - OQ

Unread post by DinkyBird » Thu May 14, 2009 10:23 pm

The name giraffe comes from the Afrikaans name for the tree that translates to giraffe (Kamelperd) where the English name is Camel.

I was totally amazed to be told on an Orientation course I did there last week that the root can extend up to 150m down! But how would anyone really measure that? There is a case in the KTNP where they needed to dig down to repair a borehole and found the root of a Camelthorn at 99m!

There is a magnificent specimen in the north of one of the river beds, that is estimated to be 1000 years old.

They are very slow growing trees.

Camelthorns in the Nossob River:
Image
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Re: The Kgalagadi Quiz - OQ

Unread post by Timepilot » Fri May 15, 2009 3:56 am

Dang, but that's phenomonal!! Thanks for the info DB - I just love these quizzes for the education. :thumbs_up:

So, what's the next step in the education process? :hmz:
“ Every year elephants were becoming scarcer and wilder south of the Zambezi, so that it had become impossible to make a living by hunting at all. ” FC Selous 1881

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Re: The Kgalagadi Quiz - OQ

Unread post by DinkyBird » Fri May 15, 2009 1:25 pm

You want me to exhaust my little list here in one go :shock: I think it could just be your turn to educate us :D
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Re: The Kgalagadi Quiz - OQ

Unread post by Timepilot » Mon May 18, 2009 5:44 am

Aikona DB :wink: I have'nt been in that part of the world in 25 years and even then it was a fleeting visit.

Someone else better have a go
“ Every year elephants were becoming scarcer and wilder south of the Zambezi, so that it had become impossible to make a living by hunting at all. ” FC Selous 1881

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Re: The Kgalagadi Quiz - OQ

Unread post by bishop3006 » Mon May 18, 2009 8:13 am

Kgalagadi? OK, never been there, but let me try one that is related.

You are looking at a herd of gemsbok, but the grass is long, so you can't see the stomach line, and thus cannot see the penis sheath of the bulls either. How do you determine which are the bulls? (Not failsafe without the penis sheath, but generally it works.)
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Re: The Kgalagadi Quiz - OQ

Unread post by Sawubona » Mon May 18, 2009 8:34 am

B3006,

The female's horns are longer and thinner.
The bull shorter and thicker.
:hmz:
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Re: The Kgalagadi Quiz - OQ

Unread post by bishop3006 » Mon May 18, 2009 8:43 am

Only that...? :twisted:
Marius
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Re: The Kgalagadi Quiz - OQ

Unread post by billyf » Mon May 18, 2009 8:48 am

I always thought that the males are also stockier than the cows??
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Re: The Kgalagadi Quiz - OQ

Unread post by Micetta » Mon May 18, 2009 8:57 am

I like this! :D What a lot I can learn before going to the KTP next year, thank you DB!

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bishop3006
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Re: The Kgalagadi Quiz - OQ

Unread post by bishop3006 » Mon May 18, 2009 9:03 am

And...? :twisted:
Marius
Hunter, angler, nature lover, conservationist.

I believe that for man to survive, we must work with nature rather than against her. We need the land; the land doesn't need us. Too many people have lost sight of this fact. - Bruce Truter

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Re: The Kgalagadi Quiz - OQ

Unread post by AFRICAT » Mon May 18, 2009 6:29 pm

The bulls (males) are the ones whose pupils/irises are focused straight ahead, while the females are the ones whose pupils/irises are furtively glancing out of the corners of their eyes....looking at penis sheaths....?


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