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The Kgalagadi Quiz (OQ) - IPY

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Boorgatspook
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Re: The Kgalagadi Quiz - OQ

Unread post by Boorgatspook » Mon Jun 15, 2009 12:02 pm

Thirteenth - Originally Grootskrij
Fourteenth - Originally Kleinskrij.

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ingrid60
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Re: The Kgalagadi Quiz - OQ

Unread post by ingrid60 » Mon Jun 15, 2009 1:53 pm

Hi Bishop3006,

I'm an "old" newbie in the quizz thread!
Thank you for warning me!! :lol: :lol: :thumbs_up:

:clap: :clap: :clap:
BGS!!
Well done!
You are the one!! :thumbs_up:
We do not see nature with our eyes, but with our understandings and our hearts.
William Hazlitt

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Siobain
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Re: The Kgalagadi Quiz - OQ

Unread post by Siobain » Sun Jun 21, 2009 4:11 pm

Well done Spook! :thumbs_up:

What special adaptations does the Gemsbok (Oryx) have that enables
it to survive comfortably in temperatures that would kill most animals
in the dry arid regions of the kalahari?
He is rich or poor according to what he is, not according to what he has. ~Henry Ward Beecher

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ingrid60
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Re: The Kgalagadi Quiz - OQ

Unread post by ingrid60 » Sun Jun 21, 2009 7:45 pm

The most vulnerable part to such high body temperatures is the hypothalamus in the brain. The feature that protect the hypothalamus of the gemsbok,is a feature known as the “carotid rete”. It is a maze of blood vessels that work like the radiator (cooling device) of a vehicle. Warm blood from the heart to the brain passes through this network of vessels. Veins that carry blood already cooled through evaporation (in the nasal area) surround the network. Heat is exchanged in this process and thus lowering the temperature of the blood to the brain. It is a very efficient way to protect the body and simultaneously avoid too much sweating (which has the result of fluid loss).
We do not see nature with our eyes, but with our understandings and our hearts.
William Hazlitt

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Siobain
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Re: The Kgalagadi Quiz - OQ

Unread post by Siobain » Sun Jun 21, 2009 8:03 pm

The gemsbok (oryx) is supremely adapted to the desert environment and can go for months without water as it reabsorbs its own waste fluids and barely sweats. Its core temperature can rise far beyond that which would kill most animals, and to avoid literally boiling its brains, blood is first passed through the nostrils to cool it down.

Well done Ingrid... :clap: :thumbs_up:
He is rich or poor according to what he is, not according to what he has. ~Henry Ward Beecher

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bishop3006
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Re: The Kgalagadi Quiz - OQ

Unread post by bishop3006 » Sun Jun 21, 2009 10:19 pm

Would that be amur falcon? Don't know birds too well, especially raptors, I am afraid... :redface:
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Sky
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Re: The Kgalagadi Quiz - OQ

Unread post by Sky » Sun Jun 21, 2009 10:24 pm

Has to be the pygmy falcon
25 December - Lower Sabie
26 - 31st satara
1 Jan 2016 Skukuza

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ingrid60
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Re: The Kgalagadi Quiz - OQ

Unread post by ingrid60 » Sun Jun 21, 2009 11:00 pm

Sorry,bishop3006!

:clap: :clap:
Sky is correct!! :thumbs_up:

You're IT!!
We do not see nature with our eyes, but with our understandings and our hearts.
William Hazlitt

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bishop3006
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Re: The Kgalagadi Quiz - OQ

Unread post by bishop3006 » Mon Jun 22, 2009 7:58 am

Well done Sky. :thumbs_up: To my defense, I DID say I don't know anything... :tongue:
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 Siobain » Mon Jun 22, 2009 5:23 pm

Well done Sky... :thumbs_up: That's how we learn Bishop :D
He is rich or poor according to what he is, not according to what he has. ~Henry Ward Beecher

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bishop3006
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Re: The Kgalagadi Quiz - OQ

Unread post by bishop3006 » Tue Jun 23, 2009 10:22 pm

Since this is an open quiz I'll throw one in.

We all know hyaena are quite capable hunters, actually taking some 75% of their food themselves by hunting. The hyaena of the Kalahari has developed a special technique to handle oryx.

What is that technique?
Marius
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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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ingrid60
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Re: The Kgalagadi Quiz - OQ

Unread post by ingrid60 » Wed Jun 24, 2009 10:21 am

I will try to answer:

Spotted hyena usually hunts single or in small groops of two to five!!The size of the hyena hunting groop depends on the prey!
When attacking large prey(Oryx,Wildebeest or even Eland) they bite the animal's hind quarters and tear open the abdomen.
We do not see nature with our eyes, but with our understandings and our hearts.
William Hazlitt

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bishop3006
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Re: The Kgalagadi Quiz - OQ

Unread post by bishop3006 » Wed Jun 24, 2009 12:43 pm

Ingrid,

That is correct in that is the normal hunting method followed by hyaena. Actually quite gruesome, as most animals actually die of shock and/or blood loss, but are not killed outright such as with leopard or lion who smothers big prey. These guys just pile in and start ripping apart, whether the animal is still running or not.

But a hyaena can reach about 65 km/h tops if I remember correctly, and keep something like 50 km/h up for some 4 or 5 kilometers. Antelope easily outrun them if they cannot get close enough at the start.

This question is specifically about how they've adapted the above hunting techniques in the Kalahari to handle large animals like gemsbok. Probably also use it on smaller ones like springbok.
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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ingrid60
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Re: The Kgalagadi Quiz - OQ

Unread post by ingrid60 » Thu Jun 25, 2009 6:05 pm

Marius,thank you for much more informations about hyena hunting!
I'm not very experienced in these questions and I am not too good in
your language!
I'll give it another try:
Once the pack has decided which animal in the herd to attack, the Spotted Hyaena chases its prey over long distances, tiring the animal until it falls.
Hyenas are built for endurance beeing able to trot at 10km/h without
tiring!For this reason they hunt in open areas,like the Kalahari!
We do not see nature with our eyes, but with our understandings and our hearts.
William Hazlitt

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bishop3006
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Re: The Kgalagadi Quiz - OQ

Unread post by bishop3006 » Thu Jun 25, 2009 10:14 pm

Ingrid, you're not doing bad at all with English! My language is Afrikaans... Ich kanne nicht Deutsch spreche. Ich habe Deutsch gelerne auf schüle, aber est was ein-und-dreizig jahre züruck... (Hopefully that was: I cannot speak German. I learned German at school, but that was 31 years ago...) So, now that you've finished laughing at my command of your language, let's get back to the quiz... :mrgreen: :mrgreen:

What you're describing, the running/loping after prey, is once again part of the hunting methods of hyaena. But they don't want to run for miles as that wastes energy and time, so they've adapted their hunting style, or rather learned additional methods, in the Kalahari.

HINT: Think of the ground...

(I might not be on tomorrow, or only late if at all, so I'll try and look on Saturday then.)
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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