08/11/2013
GEOGRAPHY AND SOIL
• Locations : Africa, Asia, Middle East, USA, Mexico,
South America, and Australia.
• Soil Conditions: Rich in minerals; Lack of organic
materials.
BIOTIC FACTORS
DOMINANT ORGANISMS
•
•
•
Plants with a short growth cycle.
• Pronghorn and sheep compete for food.
Animals:
•
Herbivores: Mule deer, pronghorn
antelope, and desert bighorn sheep
•
Predators: Mountain lions, grey foxes, and
bobcats.
•
Reptiles: Tortoises, rattle snakes, and
lizards.
•
Birds: Owls, hawks, roadrunners
•
•
OTHER INTERACTIONS
Plants: Cacti, creosote Bush, and other
Insects: Ants, beetles, butterflies, flies,
Competition:
Predation
• Mountain lions eat mule deer.
•
Symbiosis:
• Mutualism:
Mutualism Cacti flowers are pollinated by
butterflies and moths.
• Parasitism:
Parasitism Fleas on a Kangaroo rat.
• Commensalism
Commensalism: Cactus wren builds its nest
on a cactus and the cactus does no harm.
wasps, moths
CLIMATOGRAM
•
Sunlight: 10 - 12hrs a day
•
Precipitation: annual - less
than 25cm/year
•
Temperature: ranges from
-3.8°C to 38°C
•
Sand Storms: Measure
between 12 - 65 feet.
WHAT IS UNIQUE ABOUT OUR BIOME?
•
Most dry out of all biomes
•
Around one third of the Earth's surface is covered in deserts.
•
Deserts have very low humidity.
•
Our Biome contains large mineral deposits
•
Temperatures can drop from 43°
43°C to 10°
10°C just in a couple of hours
•
Deserts have hardly any rain, roughly 25 centimeters yearly.
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08/11/2013
WORK CITED
HUMAN IMPACT
Miller, Kenneth R., and Joseph S. Levine. <i
<i>Prentice Hall biology</i
biology</i>. Upper Saddle River, N.J.: Prentice Hall,
•
OffOff-roading leaves tracks, which will “scar the land for decades”
•
Tracks kill off vegetation (harmed vegetation = harmed animals)
•
Desert soils held by plant roots, so destroying plants = destroying soils.
•
The global warming we are causing is drying up the many of the few waterholes
2002. Print.
"How Much Sunlight Does the Desert Biome Get?." <i
<i>- Ask.com</i
Ask.com</i>. Wikipedia, n.d.
n.d. Web. 29 Oct. 2013.
& lt;http://
lt;http://www.ask.com
://www.ask.com/question/how
www.ask.com/question/how/question/how-muchmuch-sunlightsunlight-doesdoes-thethe-desertdesert-biomebiome-get&gt;.
get&gt;.
•
Global warming is predicted to increase size of deserts
Przyborski,
Przyborski, Paul . "Desert : Mission: Biomes." Desert : Mission: Biomes. NASA, n.d.
n.d. Web. 29 Oct. 2013.
<http://earthobservatory.nasa.gov/Experiments/Biome/biodesert.php>.
Parks, Natasha. "Weather in the Deserts | eHow."
eHow." eHow.
eHow. Demand Media, 7 Apr. 2011. Web. 29 Oct. 2013.
<http://www.ehow.com/info_8179796_weather<http://www.ehow.com/info_8179796_weather-deserts.html#page=4>.
"What are examples of parasitism in a desert biome?." WikiAnswers.
WikiAnswers. Answers, n.d.
n.d. Web. 30 Oct. 2013.
<http://wiki.answers.com/Q/What_are_examples_of_parasitism_in_a_desert_biome>.
Feller, Walter . "Mountain Lion." Desert Wildlife.
Wildlife. N.p.,
N.p., n.d.
n.d. Web. 30 Oct. 2013. <http://digital<http://digitaldesert.com/wildlife/mountaindesert.com/wildlife/mountain-lion.html>.
Krejci,
Krejci, Kandace . "Animal Diversity Web." ADW: Antilocapra americana:
americana: INFORMATION.
INFORMATION. N.p.,
N.p., n.d.
n.d. Web. 30 Oct.
2013. <http://animaldiversity.ummz.umich.edu/accounts/Antilocapra_americana/>.
WORK CITED
Lee, Jonathan . "What do pronghorn eat?." WikiAnswers.
WikiAnswers. Answers, n.d.
n.d . Web. 30 Oct. 2013.
<http://wiki.answers.com/Q/What_do_pronghorn_eat>.
"Mule Deer." - DesertUSA.
DesertUSA. Digital West Media, n.d.
n.d . Web. 30 Oct. 2013. <http://www.desertusa.com/animals/mule<http://www.desertusa.com/animals/muledeer.html>.
http://www.wallpea.com/wphttp://www.wallpea.com/wp-content/uploads/2013/06/Desertcontent/uploads/2013/06/Desert-WallpapersWallpapers-HDHD-4.jpg
http://static.environmentalgraffiti.com/sites/default/files/images/httphttp://static.environmentalgraffiti.com/sites/default/files/images/http-inlinethumb59.webshots.cominlinethumb59.webshots.com1881018810-2949926850103830173S600x600Q85.jpg
http://search.yahoo.com/search?p=climatogram+for+desert&ei=UTF-http://search.yahoo.com/search?p=climatogram+for+desert&ei=UTF
8&fr=w3i&type=W3i_DS,202,0_0,Search,20131043,18946,0,76,0
http://desertbiomepro.weebly.com/human--impact.html
http://desertbiomepro.weebly.com/human
http://images.nationalgeographic.com/wpf/media--live/photos/000/063/cache/map
live/photos/000/063/cache/map--world
world-http://images.nationalgeographic.com/wpf/media
desert_6364_600x450.jpg
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