SCIENCE PROJECT
BIOME
JULIANA YEPES, VALENTINA RESTREPO AND
VALERIA MAYA
FRESHWATER ECOSYSTEMS
7B
TEACHER: JHOANA CEPEDA
2012
INDEX:
1. Body
1.1 What is a Biome?
1.2 Description of the characteristics of your biome. (map of the world
locating it)
1.3 Do the biome exists in Colombia, if yes, where does it is located and
characteristics
1.4 Effects of climate change in your biome.
1.5 What types of flora and fauna exists in your biome.
1.6 What are the abiotic and biotic factors of your biome.
1.7 Topography
1.8 A purchase of your biome
1.9 Food web
2. Introduction
3. Abstract
4. biography
1. Body
1.1 What is a Biome?
Is a large region characterized by the specific type of climate and cretin
types of plants and animal communities. A biome contains related
ecosystems.
1.2 Description of the characteristics of your biome. (map of the world
locating it)
o closely linked to soils and biotic components of terrestrial
biomes through which they pass
o the biome depends on patterns and speed of water flow
o it has two categories:
Standard: (lentic) Bodies of water which are : Lakes, Ponds and
inland wetlands
Moving: (Lotic) Bodies of water which are: rivers and streams
o Freshwater biomes provide half of the world's drinking water,
one third of the world's irrigation water, and almost 90 percent of
the world's bath water.
o Precipitation: the precipitation in our biome is when it rans over
the brooks, rivers, lakes, swamps, pounds, marshes etc…
o Temperature Earth’s freshwater is constantly interacting ,
changing and in movement, water freezes at 32¨ F and bolds at
212¨F at the sea level the temperature on the freshwater biome
depends on the location and geography around
1.3 Does the biome exists in Colombia, if yes, where does it is located and
characteristics of the biome in this country.
Yes, it exists in our country, because Colombia is a rich country in water
ecosystems, since it’s located in an area where geography has this
characteristics.
Location of freshwaters in Colombia: the biome is located, in all Colombian
Areas, since we have a lot of richness in the ecological features; it’s
classified as one of the first countries with this characteristics worldwide.
Characteristics of freshwater biome in our country:
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The value for Renewable internal freshwater resources per capita
(cubic meters) in Colombia was 46,261 as of 2009. As the graph
below shows, over the past 22 years this indicator reached a
maximum value of 67,539 in 1987 and a minimum value of 46,261 in
2009.
The Atrato River is the largest river in Colombia and also the third
waterway in the country after the Rio Magdalena and Cauca River.
Born in the Western Cordillera of the Andes and empties into the Gulf
of Urabá, in the Caribbean Sea: runs along most of the department of
Chocó, and two sections of the course serves as a border between
Choco and Antioquia department, for its navigability is one of
transportation of the region. It also is part of Chocó, considered the
most biodiversity area of the world and one of the wettest
A freshwater biomes one that many people overlook the importance
of they are much smaller bodies of water but they are equally
important, like lakes rivers streams pound etc..
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Freshwater biomes cover 1/5 of the earth and they are vital for our
survival more than half of the drinking water for humans and animals
comes from this resource.
1.4 Effects of climate change in your biome.
The water is cold and so is the surrounding areas. So the temperature in that area
has to be warm, to hot to make the water that way
Temperature plays an important role in freshwater biomes. Depending on the
season, temperature may be uniform or disparate between different layers of
ponds and lakes. During summer, the temperature at the top could be 22 degrees
C while the bottom temperature can be around 4 degrees C. During the winter, the
temperature at the top could be at freezing point of water (0 degrees C) while the
bottom can be at 4 degrees C.
This biome is under an intense pressure causing a climate change on other biomes
the changes are view in such as melting glaciers and precipitation patterns
because the 70% of the freshwater available in the planet is frozen, letting the
distribution in precipitation space is bigger, another change is the rate of
evaporation depending on temperatures and relative, which impacts the intensive
rain fall, evaporation and the underground water depletion.
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Changes in seasonal distribution and precipitation
Changes in the balance between snow and rain.
Reduction in soil moisture
Changes in vegetation cover
Concequence in changes in management of the resources
Increase in fire risk in many areas
Increase costal inundation and wetland lost from the sea level.
1.5 What types of flora and fauna exists in your biome.
Flora: Almost any plant can live in a freshwater biome, and the most
common ones are trees, shrubs and grasses. Cattails, swamp fronds,
tamarack trees and algae and lily pads also flourish in freshwater
biomes.
Fauna: A large variety of animals live in freshwater biomes, especially
mammals like beaver, muskrat and otter. Freshwater biomes also
provide homes for many species of waterfowl like ducks, swans and
geese.
Wetland contains the greatest diversity of species in the world,
including water animals, insects, amphibians, reptiles, birds and
mammals.
The fauna and flora of freshwater biome also depends on the place
where the biome is located.
1.6 What are the abiotic and biotic factors of your biome.
Biotic Factors in freshwater ecosystems:
 Water
 Algae
 Plants
 Fish
 Grass
 Insects
 Snails
 Bacteria
 growth rate
 Cattails
 Groundsel Trees
 Fungi
 Feather foil
 food chain/web
Abiotic Factors in freshwater ecosystems:
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rocks
sand
dirt
Air currents
Sun
Soil
Concentration of ions
Hydrological Cycle
salinity(dissolved minerals)
pollution
turbidity
1.7 Topography
The topography of the freshwater biome includes all type of characteristics,
including rivers, creeks, brooks and streams cause erosion that shapes the
topography of Earth's surface, this movement of water deposits sediments to
create landforms, such as floodplains, alluvial fans and deltas. The erosion of rocks
and soil also create landforms such as channels, canyons and valleys. Where
water settles, lakes and ponds are formed of wetlands.
o Deltas and Estuaries: When a stream or river enters a lake, its speed slows
and silt and sand are deposited to form a delta, These deltas are often the
extension of a nearby floodplain, and where flood controls or drainage takes
place the area can provide fertile agricultural land.
o Lakes and Ponds: Lakes and ponds are bodies of water surrounded by land
on all sides. Lakes are usually too deep to support any rooted plants, except
near the shoreline. Some lakes are big enough to produce waves and since
light does not penetrate readily, photosynthesis is found only in the top layer
o Wetlands: is a waterlogged landscapes, They usually contain plants which
grow up and out of the water, creating a topography without any elevation or
erosion.
o Rivers are important for transporting and depositing sediments, a product of
erosion. A river cuts both downwards and sideways to shape and form wide
valleys and deep canyons.
A waterfall may also develop where a stream or river flows over the edge of
a plateau or cliff in mountainous terrain. As water continues to fall onto the
valley floor, it erodes the land at the base of the waterfall to create a basin.
1.8 Food web
“See annex, it’s drawn.”
2. INTRODUCTION: in this project we will research freshwater biomes
having all there information, and presenting it all with a word document
and a model with our biomes, which is characterized by rivers, lakes,
ponds and more. In this project we learned how did biomes work, the
different types of biomes there where and how we can take care of them,
also letting all of our other classmates know about our biome.
3. Abstract: The freshwater biome is composed mostly of lakes, rivers
pounds, streams or wetlands; they are mainly made by the harsh raining
or climate of the area. Is also defined as having a low salt concentration;
Usually less than 1%. Plants and animals in freshwater regions are
adjusted to the low salt content and would not be able to survive in
areas of high salt concentration there are different types of freshwater
regions .this biome is also very important for human been because this
is where it comes the drinking water and the water we take shower with,
the one we cook etc.. and is not only important for us is also important
for animals that live there and that are not adjusted to salt water and
have all their survival things and family in this biome.
PICTURES:
http://www.ehow.com/info_8018293_animals-plants-aquaticbiome.html
http://bioexpedition.com/biomes/
http://www.wisegeek.com/what-is-the-freshwater-biome.htm
http://grmsbiomes.pbworks.com/w/page/23239820/Biotic%20Factors%20%20Rivers%20and%20Streams
http://www.biology-online.org/6/3_abiotic_factors.htm
http://www.ehow.com/list_6190259_freshwater-biome-abiotic-factors.html
http://wiki.answers.com/Q/What_are_the_biotic_factors_of_fresh_water_biomes
http://www.ucmp.berkeley.edu/exhibits/biomes/freshwater.php
http://mason.gmu.edu/~klargen/111lectecosystemsaquaticbiomess
pring04.htm
http://www.ehow.com/about_6363504_topography-influenceweather_.html
http://www.ucmp.berkeley.edu/exhibits/biomes/freshwater.php