Transcript Hot & Dry Desert Biome - Lewiston Public Schools

Hot & Dry Desert Biome
PART 1
CHRIS JACQUES
WHITE 8
CLIMATE
TEMPERATURES
ANNUAL TEMPERATURES RANGE FROM 20 - 25 º C ( 68 - 77 º F )
EXTREME MAXIMUM TEMPERATURES RANGE FROM 43 . 5 - 49 º C ( 110 . 3 - 120 . 2 º F )
MINIMUM TEMPERATURES SOMETIMES DROP TO -18 º C ( -0 . 4 º F )
THE ATMOSPHERE IN HOT & DRY DESERTS CONTAINS VERY LITTLE HUMIDITY TO BLOCK
THE SUN’S RAYS
THEREFORE, TEMPERATURES HAVE DAILY EXTREMES
SUMMERS ARE EXTREMELY HOT
GENERALLY WARM THROUGHOUT THE YEAR
WINTERS BRING VERY LITTLE RAINFALL
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CLIMATE
PRECIPITATION
RAINFALL IS VERY LOW IN HOT & DRY DESERTS
2 - 26 cm AVERAGE PER YEAR OF RAINFALL IN DESERTS
EVAPORATION RATES EXCEED RAINFALL RATES
SOMETIMES EVEN WHEN RAIN STARTS FALLING, IT EVAPORATES BEFORE IT HITS THE GROUND
THEY ARE EVEN RAINLESS SOME YEARS
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OTHER ENVIRONMENTAL FACTORS
SOILS
COARSE, SHALLOW, AND ROCKY
GOOD DRAINAGE
NO SUBSURFACE WATER
SOILS ARE COARSE-TEXTURED BECAUSE THERE IS LESS CHEMICAL WEATHERING
HEAVIER SAND PIECES ARE LEFT BEHIND WHEN FINER DUST AND SAND PARTICLES ARE BLOWN
ELSEWHERE
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LOCATION
ALONG THE TROPIC OF CANCER AND THE TROPIC OF CAPRICORN ARE WHERE MOST OF THE
HOT & DRY DESERTS CAN BE FOUND
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LOCATION
THESE ARE THE MAJOR HOT & DRY DESERTS OF THE WORLD:
CHIHUAHUAN
SONORAN
MOJAVE
GREAT BASIN
SAHARA
( NORTH AMERICA )
( NORTH AMERICA )
( NORTH AMERICA )
( NORTH AMERICA )
( AFRICA )
SOUTHERN ASIA REALM
( ASIA )
NEOTROPICAL
( SOUTH AND CENTRAL AMERICA )
ETHIOPIAN
( AFRICA )
AUSTRALIAN
( AUSTRALIA )
ATACAMA
( SOUTH AMERICA )
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DOMINANT ANIMALS
KANGAROO RAT
COYOTE
LIZARDS (ARMADILLO LIZARD)
ANTELOPE
BOBCAT
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OTHER ANIMALS
JAVELINA (WILD
PIG)
BIRDS (CACTUS WREN)
OWLS (PYGMY OWL)
DESERT TORTOISE
DESERT TOAD
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DOMINANT VEGETATION
SAGUARO CACTUS
CACTI
BARREL CACTUS
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CRIMSON HEDGEHOG
CACTUS
PANCAKE PRICKLY PEAR
CACTUS
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DOMINANT VEGETATION
CHAINFRUIT CHOLLA
CREOSOTE BUSH
CHOLLA
BUSHES
JOSHUA TREE
BRITTLE BUSH
JUMPING CHOLLA
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POSITIVE & NEGATIVE
EFFECTS OF HUMANS
THE POPULATION OF HUMANS IN DESERTS IS VERY LOW. HOWEVER, A FEW GROUPS OF PEOPLE
STILL TEND TO LIVE THERE DESPITE THE DANGERS OF THE EXTREME TEMPERATURES,
VENOMOUS ANIMALS, AND THE FACT THAT IT IS A POTENTIALLY DEADLY ENVIRONMENT
FOR HUMANS.
POSITIVE EFFECTS FROM DESERTS ARE THAT THEY ARE GOOD BARRIERS FOR CIVILIZATIONS.
THEY PROVIDE GOOD PROTECTION FROM OUTSIDERS BECAUSE THEY ARE ESSENTIALLY
IMPOSSIBLE TO GO THROUGH AND THEY KILL MANY ENEMIES BY ITSELF. HUMANS HAVE A
POSITIVE EFFECT ON DESERTS BECAUSE THERE ARE SO FEW OF THEM THERE. THERE ISN’T
ANY HUMAN GOING AND KILLING ALL OF THE DESERT TOADS UNTIL THEY BECOME EXTINCT.
THAT WON’T HAPPEN IN A HOT & DRY DESERT.
A NEGATIVE EFFECT OF HUMANS FROM HOT & DRY DESERTS IS THAT THEY ARE DEADLY
ENVIRONMENTS.
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BIBLIOGRAPHY
APA STYLE
Benders-Hyde, Elisabeth M., and Nelson, Karl. "Desert." Blue Planet Biomes. 4
Oct. 2007 <http://www.blueplanetbiomes.org/desert.htm>.
Biology 1B Class, Section 115. "The Desert Biome." University of California
Museum of Paleontology. Fall 1996. University of California. 5 Oct. 2007
<http://www.ucmp.berkeley.edu/exhibits/biomes/deserts.php>.
Watkins, Jefferey. "Deserts." Oswego City School District Regents Exam Prep
Center. 8 Oct. 2007
<http://regentsprep.org/Regents/global/themes/geography/des.cfm>.
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