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The Temperate Deciduous Forest

Mr.Chewning-5th period Dustin Tu, Evan Rodriguez, Andrew Timoshchuk

dustin tu

on 8 February 2014

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Transcript of The Temperate Deciduous Forest

Temperate Deciduous Forest
A temperate deciduous forest is a biome majorly located in North America, western Asia, and Europe. They are always changing and have 4 distinct seasons: Summer, Fall, Winter, and Spring. They get about 30 to 60 inches of precipitation a year.
What makes this biome so special is that almost every producer adapts to change their leaves year round.
An abundant amount of organisms inhabits these forests, including those like the brown bear, red fox, skunk, squirrel, and raccoon.
Organisms, Ecosystems, and beyond...
Within the biomes...
Nitrogen Cycle
How Humans Affect This Biome
Nitrogen is an important element. It makes up 78% of the earth's atmosphere.
Bacteria is the key to this cycle. Bacteria converts nitrogen gas into ammonia ( useable form of nitrogen to plants.)
Where as in the temperate deciduous forest it obviously has a lot of plants.
These plants and in the forest pass their nitrates to the consumers and through the food web. And nitrogen returns to the atmosphere.
Nitrogen is very important to all the plants and animals because, nitrogen makes amino acids which converts to proteins. Proteins are structures among the DNA.
Unfortunately, humans have negatively affected and influenced this biome in many different ways.
Workers have cut down many trees from the forest, killing organisms to extinction before even being noticed, and destroying the homes in which thousands
of animals inhabit.
Deciduous forests and other biomes have been used for commercial purposes, which makes humans the most destructive living things in these locations.
When people cut down trees, much of the rich soil gets washed away by water during heavy rain or flooding. This basically creates a barren piece of empty land
Animals also lose their habitats, causing them to die. Hundreds of species are now extinct due to deforestation and commercial use.
Humans have increased Global warming, forcing organisms worldwide into hot and humid conditions.
How Humans Affect This Biome
Big and....
... small
Phosphorus Cycle
The phosphorus cycle is also important. Phosphorus starts weathering of rocks and goes through plants, animals, soil, water, and back to rocks. Where in the temperate deciduous forest is filled with all sorts of plants and animals. Phosphorus has a role in making up all the cell membranes and help make DNA. Phosphorus is a building block in forming the skeletal system.
Energy Pyramid
Carbon Cycle
Carbon is very important factor in plants and animals in the temperate deciduous forest. It is needed because:
Plants take in carbon dioxide. They absorb them and to use it to make their own food.
Plants, in return, exhale oxygen.
Oxygen is needed for all animals within the forest. Therefore without oxygen, animals would not exist.
It is the basic element for all living things.
H20 Cycle
The water cycle ( known ad H20) is probably the most important cycle in the temperate deciduous forest because water gives life to all the animals and plants that live there.
Water is needed in plants since it carries all the important nutrients from the soil to the plant. Plants form the basis of all food chains.
In the Deciduous Forest, many plants have adaptations that help them survive.
Trees here have thick bark to protect against cold weather, and they also have broad leaves to help capture sunlight.
Wild flowers grow on forest floor early in the spring before trees leaf-out and shade the forest floor
Trees learn to shed their leaves because the water within would otherwise freeze, causing damage and loosing heat as winter hits. They conserve energy through this process.
Plant Adaptations
Animals spend much time getting ready for winter here.
Squirrels will gather nuts and seeds and store them in logs or holes underground.
Bears spend time eating as much as possible before winter, so they have fat stored up.
Birds will leave the area entirely to warmer climates, until spring begins.
Animal Adaptations
What exactly is a Temperate Deciduous Forest?
The appearances among these forests shift with the change of the seasons. Deciduous forests are actually one of the most scenic biomes you can find among the planet. During the season of autumn, this forest expresses the most impressive views where almost every tree and plant alters their leaf colors into bright oranges, yellows, and reds. Visiting these locations can change the way you look towards nature entirely.
Why is this place special?
Energy Pyramid
Animal Adaptation
Organisms, Population, Communities, and Ecosystems
Primary consumers will only get 10% from their producers so they get about 600 kilo calories per square meter per year.
Levels of organization occurs everywhere on Earth. To start it all, organisms are individuals among the biomes. Population is next where a group of the same species live together in a minor area. Community occurs where all living factors are in a small region. Ecosystems and biomes are the similar where living and nonliving things are placed with their environment. Biomes are vast while ecosystems are small. Biosphere is all organisms upon Earth.
Tertiary Consumer
Food Chains
producers (grass)
Primary Consumer
Tertiary Consumer (owls). They will also receive 10 % from the secondary consumers so they will only get about 6 kilo calories per square meter per year.
Producers get about 6000 kilo calories per square meter per year from the sun's energy.
Secondary consumers ( snakes). Predators will get 60 kilo calories per square meter per year. Takes only 10% from the herbivores.
The Sun
Every life form is sustained and started by the sun
Herbivores (mice)
or Omnivores
Secondary Consumer
Organism Relationships
The Process of Symbiosis
Parasitism: Leeches sapping blood from animals moving through swamps or lakes
Predation: -A snake hunting down and eating a rabbit
Competition: A cougar and a bear fighting over food.
Mutualism: -ants taking shelter in a tree while protecting it from competition against other vines and plant-eating insects.
Organism Relationships
An s curve represents the temperate deciduous forest's population trend meaning when the area overpopulates, it levels its self out.
Population Trend
Starts when individuals slowly increases their size. The process

accelerates, but it can't be maintained in real life.
-The left graph shows growth with unlimited resources and perfect conditions where organisms reproduce constantly.
It's also named an exponential growth.
An S-curve is a logistic or limited graph. In the deciduous forest, competition over resources and predation prevent species from growing too rapidly.
:) vs :(
:) vs :/
Symbiosis-relationship where one organism is always helped
EX: Birds nesting on trees where the plant
isn't injured in any way.
EX:Thousands of dust mites live upon your bed.
They eat your dead skin without any harm, yet
you never feel it.
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