Skip to Content

Grass Quiz (OQ) - IPY

Enjoy, participate and learn from the quiz forum. Post your quiz here for others to enjoy as well
User avatar
oddesy
Virtual Ranger
Virtual Ranger
Posts: 2694
Joined: Wed Jan 02, 2008 4:57 pm
Location: Randburg, SA

Re: Grass Quiz (RV)

Unread post by oddesy » Fri Aug 06, 2010 3:11 pm

Well the sweet (Eutrophic-fertile) grasses dominate in the eastern half of kruger where the soil is basaltic in origin so satara, lower sabie. The sour (dystrophic-unfertile) grasses are dominant in westrn kruger where soil is granitic in origin so mopani and berg en dal. But then in the west there are also the Gabbro intrusions that have vegetation charateristiccs similar to the east.
The beginning of knowledge is the discovery of something we do not understand.

"We are what we repeatedly do. Excellence, then, is not an act, but a habit." Aristotle

User avatar
onewithnature
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 11949
Joined: Tue Dec 23, 2008 5:22 am
Location: Midway between the infinite and the infinitesimal!

Re: Grass Quiz (RV)

Unread post by onewithnature » Fri Aug 06, 2010 4:59 pm

More than good enough! IT, Oddesy! :clap: :clap: Great to have you around again!! :thumbs_up:
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)

User avatar
oddesy
Virtual Ranger
Virtual Ranger
Posts: 2694
Joined: Wed Jan 02, 2008 4:57 pm
Location: Randburg, SA

Re: Grass Quiz (RV)

Unread post by oddesy » Fri Aug 06, 2010 6:37 pm

Thanks OWN :thumbs_up:

What is a grazing lawn? and name one common grass species that occurs here.
The beginning of knowledge is the discovery of something we do not understand.

"We are what we repeatedly do. Excellence, then, is not an act, but a habit." Aristotle

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 5701
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Grass Quiz (RV)

Unread post by Elzet » Fri Aug 06, 2010 7:44 pm

Hiya Ods, good to :big_eyes: you again. :thumbs_up: :thumbs_up: :thumbs_up:


Grazing lawns - co-evolution between herds of grazing animals and unique communities of grazing-tolerant grass species.


Grazing lawns are recognized as important components of many savanna ecosystems, but there is no clarity on their origin or their stability in space and time. Some researchers believe soil nutrients control grazing lawn distributions. Others believe feedbacks created by herding mammals grazing in patches can promote the spread of grazing lawns without soil nutrient differences. This in turn is affected by rainfall and fire.

http://www.kfpe.ch/projects/jeuneschercheurs/Suter.php

http://www.bioone.org/doi/abs/10.2193/2007-045

Here's another article

http://docs.google.com/viewer?a=v&q=cac ... _7kPwfichQ
“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 5701
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Grass Quiz (RV)

Unread post by Elzet » Fri Aug 06, 2010 7:49 pm

Digitaria longiflora is one.
“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay

User avatar
oddesy
Virtual Ranger
Virtual Ranger
Posts: 2694
Joined: Wed Jan 02, 2008 4:57 pm
Location: Randburg, SA

Re: Grass Quiz (RV)

Unread post by oddesy » Sat Aug 07, 2010 10:37 am

Spot on E! :thumbs_up: :thumbs_up: great to be back :dance:

Another thing to add would be that most commonly stoloniferous grasses would grow on grazing lawns as they grow very close to the ground reducing the sizes of bites herbivores can take so as to prevent overgrazing. Foraging ecologists have found that the wildebeest around orpen gate in KNP move from one grazing lawn to another and due to lowered vigilance between lawns that is where they are preyed upon :thumbs_up:

Your IT E :clap: :clap:
The beginning of knowledge is the discovery of something we do not understand.

"We are what we repeatedly do. Excellence, then, is not an act, but a habit." Aristotle

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 5701
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Grass Quiz (RV)

Unread post by Elzet » Sat Aug 07, 2010 9:57 pm

Great Q, thanks Ods.

...... indicates that veld is in good condition. The more it burns, the more it becomes resistant to fire, subject to it having a rest in between. This grass as an awning-twirling effect, ensuring that seeds reach the soil.
“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay

User avatar
onewithnature
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 11949
Joined: Tue Dec 23, 2008 5:22 am
Location: Midway between the infinite and the infinitesimal!

Re: Grass Quiz (RV)

Unread post by onewithnature » Mon Aug 09, 2010 12:43 am

Spear grass?
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 5701
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Grass Quiz (RV)

Unread post by Elzet » Sat Aug 21, 2010 6:21 am

No.
“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay

User avatar
bishop3006
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 5394
Joined: Thu Nov 06, 2008 4:45 pm
Location: Pretoria

Re: Grass Quiz (RV)

Unread post by bishop3006 » Sat Aug 21, 2010 9:44 pm

:hmz: Also thought it was spear grass but didn't answer as I don't want to be IT! :tongue:

Now...? :hmz:
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

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 5701
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Grass Quiz (RV)

Unread post by Elzet » Sat Aug 21, 2010 11:07 pm

It might be 'slang' for the grass I'm looking for. Let me have the Latin name so that I can check.
“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay

User avatar
Imberbe
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 13596
Joined: Wed Aug 31, 2005 12:28 am
Location: Pretoria, RSA

Re: Grass Quiz (RV)

Unread post by Imberbe » Sat Aug 21, 2010 11:45 pm

I also initially thought it may be spear grass / assegaai gras (Heteropogon contortus), but spear grass is not an indication of good veld condition. In fact quite the opposite. It will be found in areas that has been heavily damaged, such as through over grazing and areas that has been eroded or ploughed.

The rest of the description is a good fit. :thumbs_up:

Please don't call the common names of things slang :twisted: :lol: It is very often much more useful than the latinized version. :wink: Just my humble opinion. :)
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


One positive deed is worth more than a thousand critical words.

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 5701
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Grass Quiz (RV)

Unread post by Elzet » Sun Aug 22, 2010 12:16 am

Imberbe, I'm all for 'slang' (volksmond), trust me. :thumbs_up: It's just that spear grass was not part of the Latin, Dutch, French, Italian, English, Zulu, Xhosa, Sepedi, Venda, Tsonga, Afrikaans or Latin name of the grass that I have in mind. And I want to ensure that I'm not saying :naughty: when I should be saying :thumbs_up: .
“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay

User avatar
Imberbe
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 13596
Joined: Wed Aug 31, 2005 12:28 am
Location: Pretoria, RSA

Re: Grass Quiz (RV)

Unread post by Imberbe » Sun Aug 22, 2010 4:21 pm

Are you referring to Red grass / Rooi gras (Themeda trianda)?
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


One positive deed is worth more than a thousand critical words.

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 5701
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Grass Quiz (RV)

Unread post by Elzet » Sun Aug 22, 2010 8:11 pm

“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay


Return to “Quizzes”

Who is online

Users browsing this forum: No registered users and 2 guests


Webcam Highlights

Addo
Submitted by chantier at 22:30:08
orpen
Submitted by chantier at 22:42:39
satara
Submitted by chantier at 22:52:18
nossob
Submitted by chantier at 22:26:16