Transcript 5th final apes project

DESERTS
By Hina Javed Trish Tieu and
Melody Cruz
Temperature
Hot Deserts-43.5 to 49° C (summer)
20 to 25° C (winter)
Cold Deserts- -2 to 4° C (winter)
21 to 26° C (summer)
 Rainfall- less than 30 percent per year

CHARACTERISTICS
Adaption's to low
rainfall
Plants:

Water-storing leaves
and stems
 Thick epidermal
layers to reduce water
loss
 Salt tolerance
 Plants are mainly
ground-hugging
shrubs and short
woody trees

Adaptions to low rainfall
Animals

Nocturnal (avoid sun’s heat)
 Rodents have highly concentrated urine and feces

Soils are course-textured, shallow, rocky or
gravely with good drainage
 Clouds are scarce

TYPES OF ORGANISMS

Plants
Low growing shrubs
 Water storing plants

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Insects and arachnids
Reptiles
Mammals
Birds
SAHARA DESERT: FOOD WEB

Producers
Cacti
 Rabbit Brush/Sage Brush

Sahara Desert

Primary Consumers
Desert insects [locust, yucca moth, ants]
 Rodents [Kangaroo Rats]
 Reptiles [Lizards]

SAHARA DESERT:
TOP CARNIVORES

Small Carnivores
Tarantulas
 Scorpions
 Lizards
 Snakes


Large predators
Knit Foxes
 Hawks

COLD DESERTS
The deserts that occur in
Greenland, Antarctic and
the Nearctic areas are
called cold deserts
 characterized by cold
winters with snowfall
and high overall
temperatures throughout
the winter and
sometimes the summer
too
 The main plants in this
area are deciduous

ATACAMA DESERT
FOOD WEB

Primary Producers
Low growing shrubs
 Low growing bushes

ATACAMA DESERT

Primary consumers
Rabbits
 Squirrels
 Rats
 Seed-eating birds

ATACAMA DESERT

Top Consumers
Spiders
 Foxes
 Owls
 Hawks

HUMAN IMPACT

Slow-growing vegetation is quickly damaged by
off-road vehicles.

Live stock are destroying much of the plant cover in
deserts.