Transcript savannafinalpresentationcookx - cooklowery14-15

Savannah’s are located on both sides
of the equator in country's and region’s
like : Africa, Zambia, Leone, Sudan, and
the central American republic (ect)
Overgrazing and farming have destroyed
much of the savannah. When
overgrazing occurs the grasses don’t
grow back and the savannah can turn
into a desert. In Africa the Sahara desert
is expanding into the savannah at the
rate of mpy (miles per year
A savannah is a rolling
grassland scattered with
shrubs and isolated trees.
Most savannah’s are located
in Africa and the most well
known the serngeai in
Tanzania
http://freewallsource.com/savannah-10830.html
www.blueplanetbiomes.org/savannah.hltm
www.brainpop.com
www.ducksters.com/science/ecosystem/savannah_biome.ph
p
www.plantpatrol.info/savannah.hltm
By Alexandra Mercurio
Climate Overview
 The main seasons are dry and wet, during the rainy
season the savanna is lush and rivers typically overflow
and bring water to plants and animals. In the dry
season water may be scarce and there can be a drought
which can effect plants and animals.
Dry Season
 A drought can cause loss of water and other resources. The
water can be dried out for months but it will generally
return when there is heavy rain in the rainy season.
Wildfires can also cause damage to savannas' caused by
droughts.
 A lack of water is called a drought which can happen
mostly in the dry season.
 The dry season happens from October to May.
 In the dry season it is also a bit cooler then the wet because
it takes place during what would be our winter.
Wet Season
 The wet season usually happens from November to April.
 The rainfall in the savanna can be 20-50 inches of rain.
Most of the rain comes from the rainy season but it can rain
in the dry season. However it won’t rain as much as it might
in the other season.
 A period before the wet season is called a build up.
 The build up is a time between August and November
where the humidity increases and there can be thunder
storms and even lightning.
Wind Velocity
 Dust storms can happen in the savanna
and is more possible to happen in a dry
season.
 Dust storms can be caused by when a
strong wind blows dust around
particles start to vibrate and dust or
sand blows everywhere!
Weather Patterns
 The savanna has two seasons instead of four, but they have
at wet season and dry season.
 But these seasons are different then ours because these
biomes are typically closer to the equator.
 There winter is a dry season and it is very hot, but the wet is
a bit more humid then being hot.
 Therefore, a dry season is more likely to have heat and
droughts and the rainy season can more likely have
humidity, heavy rainfall, and floods.
Temperature
 During the wet season it is somewhat more humid
then it would be in the dry season because with rain
normally comes humidity, This humidity can mean
that it may be more hot then the dry season. During
this season the average temperature is 70 – 90
 In the dry season it is sometimes cooler than the wet
season and it doesn't have much humidity but it does
have heat. The average temperature is 60 – 80.
Weather Impact
 The weather has impact on in the:
 Wet season - During this particular season many plants
thrive and soak up the water and animals can drink more
water.
 However some plants or animals may dominate by extra
food/water and change food chains.
 During the dry season if there is a drought most animals
can’t survive the loss of water. Plants will be expected to die
if they don’t need much water. And loss of water can lead to
dying animals which can lead to food chains changing as
well as in the rainy season. If any animals survive on
supplies of fish they can also be seriously impacted.
Sites used
http://www.savanna.org.au/all/climate.html -Slides 5
and 6.
 http://savannatprimosch.weebly.com/precipitationtemperature--soil.html - dry season facts
 and precipitation (3 and 4)
 http://www.blueplanetbiomes.org/savanna.htm .Slides 2 and some of 8
 http://www.blueplanetbiomes.org/savanna_australiacl
imate.htm - 7
Savanna-Plants
Mia
Different Plants
The Majority of the biome is grass, often they grow 3-6 feet tall.
There are not many trees in the savanna because wildfires and
droughts often stop the trees from growing.
The Umbrella Thorn Acacia Tree
http://thegreatsavanna.weebly.com/savanna-plants.html
Kangaroo Paw
http://upload.wikimedia.org/wikipedia/en/a/ab/Kangaroo_paws_darling_range.JPG
http://trade.indi
amart.com/detail
s.mp?offer=4328
571062
Elephant Grass
http://3.imimg.com/data3/JB/QC/MY-2604841/elephant-grass-seeds500x500.jpg
http://www.google.com/search?q=Red+fescue&safe=acti
ve&client=firefox-a&hs=B9i&rls=org.mozilla:enUS:official&source=lnms&tbm=isch&sa=X&ei=Dd79VJSh
Msr3yQTsw4GYBQ&ved=0CAcQ_AUoAQ&biw=1280&bi
h=661#imgdii=_&imgrc=1nplRpEncxtQAM%253A%3Brf
UsnZ-PdS9qyM%3Bhttp%253A%252F%252Fyac
wag.org.uk%252Fwpcontent%252Fuploads%252F2012%252F06%252Fredfescue.jpg%3Bhttp%253A%252F%252Frosarubicondior.blo
gspot.com%252F2014%252F07%252Fevolution-arms-racemoose-spit-detox.html%3B1600%3B1200
Red Fescue
https://farm4.staticflickr.com/3652/3542304350_2aa3417df1_z.jpg
Aloe Marlothii
http://pics.davesgarden.com/pics/2012/02/11/palmbob/4a51e3.jpg
http://www.plantza
frica.com/vegetation
/savanna.htm
Lala Palm
http://media-cacheec0.pinimg.com/736x/55/af/f6/55aff659e1ce730d70a03cbc77ccd3d4.j
pg
Pitcher Plant
http://cdn-1.carnivorous--plants.com/images/pitcher-plant.jpg
Davill Eliptica
t0.gstatic.com/images?q=tbn:ANd9GcS37v9q10bhhIlgYnW0TzZomlqaUpL9cJvZCKCncZGw
WvrMXhGa2w
Stemless Palm
http://cdn.c.photoshelter.com/img-get/I0000wGu8mBATMZo/s/860/860/brazil-cerradopalm-attalea-JNGX0700.jpg
Iron Wood
http://www.marietta.edu/~biol/biomes/images/grassland/tironweed.jpg
Dogbane seed pod:
http://www.marietta.edu/~biol/biomes/images/grassland/dogbane_7299.jpg
Plant Adoption
» The Plants in the savanna have adapted to common drought
circumstances, by putting their roots deep in the ground to find water
below the surface. This helps them survive in the savanna.
» The roots of the plants are so deep in the ground that even during
wildfires the will remain unharmed.
» The plants in the savanna are known for their bright and colorful flower
that bloom exclusively to get pollen.
» The leaves of a lot of the plants in this biome are small and narrow, this
is to make sure little loss of the heat in the daytime.
http://www.buzzle.com/articles/grassland-biome-animals-and-plants.html
Abiotic Factors: soil, climate,
sunlight
Credits:
http://oaksavannas.org/savanna-ecology.html
http://www.softschools.com/facts/biomes/savanna_biome_facts/163/
Soil
 Most Soil in the savanna is dry, some plants that cant survive
in such soil may die during this season and grow back during
rainy seasons.
 Crops are not found in the savanna because they cant grow
in the dry soil.
 There are many different types of Soil in the Savanna, the
major ones are:
 lateritic soils
 cracking clays
 deep sands
 alluvial soils
Climate
 Plants vary in there temperature needs. Some are cool weather
plants and others warm weather plants.
 Trees may loose there leaves so that there is a minimum water
loss during dry seasons.
 When there is a lot of rain it could flood the plants and they
could die.
Sun light
 When direct sunlight hits the ground, the water in the soil
evaporates, giving the plants little water.
 Drought resistant plants may be able to survive, but plants
that cant survive without a lot of water may die.
 Sunlight gives plants Nutrients.
 Grey-green/ pale coloring of the bottom of the leafs helps
reflect the sun away so there is a minimum loss of water.
Giraffes, Hippos and
Elephants
Wild African Dogs, Meerkats
and Lions
Jackals, Ostriches and
Warthogs
Termites
Termites are responsible for keeping nutrients for the producers and
keep the food chain rolling.
Primary
consumer: Deer
Secondary
consumer:
Cougar
Primary
consumer:
Rodent
Secondary
consumer: Fox
Hippo have very sensitive skin and the
sweat reddish oil to keep it from drying
out.
 Hippos spend most of the day sleeping
underwater and bathing in rivers or lakes.
 At night Hippos come out of the water to
graze on grass beside the shores of the
river or lake.

Water Availability: Water is scarce during
the winter-dry season but in the summer
there is plenty of water to go around. So
the in the winter-dry season animals store
and conserve food and water. In the
summer animals gather around a pond or
lake and drink. Also carnivores are on the
prowl in the summer again.
http://kids.nceas.ucsb.edu/biomes/sava
nna.html
 http://www.planetpatrol.info/savannah.
html
 http://www.outtoafrica.nl/animals/enghi
ppo.html
 https://images.google.com/
