#ecosys6

Coniferous forest

Biotic organisms in the coniferous forest  

shrubs, flowering plants, ferns, mosses, lichens, fungi, mammals, birds, reptiles, insects, worms.

Abiotic factors

water(12to30in)yearly

soil(soft moist)

air(moist during winter,humid in the summer)

rocks

temp(can average between -40-68 degrees fahrenheit

Carrying Capacity and Changes in Pop.

A population needs food, water, and space

limiting factors

abiotic limiting factors:water,soil,light,temp.

biotic limiting factors:competition,preditation,crowding, and disease

predator/prey relationship

Predator-prey Relationship: A good example of the predator-prey relationship is that between the snowshoe hare and the Canadian lynx. The Canadian lynx is a yellowish-brown, 2-4 foot long nocturnal cat that is found throughout Canada and Alaska. Although it will eat rodents, birds, and fish if necessary, the snowshoe hare, a nocturnal, medium-sized rabbit that lives in Alaska and northern Canada, is by far its preferred prey. In fact, the lynx is so dependent on the snowshoe hare that, when the population of snowshoe hares decreases, lynx become weak and start having fewer litters. Thus, the populations of snowshoe hares and lynx fluctuate in a linked cycle.

http://faculty.college-prep.org/~bernie/sciproject/project/biomeweb/Coniferous/CommInt.htm

http://2.bp.blogspot.com/_Q9x-MZcpbXI/TRzdzQmVhZI/AAAAAAAAABs/Fq6LBTxcyrY/s1600/Untitled+6.png

energy roles

producers:ever green trees,columbies,and,balsam fir trees

consumers: snowhares,bald eagles, eastern milk snake ,and moose

decomposers: protozomes,nemotodes, soil bacteria

food webs and food chains

food webs are more realistic because food webs show all the possible out come of what and animal can eat and what eats it.

lets say the moose died off the animals that would be affected would be the wolves because they would have nothing to eat so they would starve and die.

Trophic levels and energy pyramids

1:final consumers 0% energy

2:secondary consumers 10% energy

3:primary consumers 100% energy

4:producers 1000% energy

The reason people use an pyramid other than other shapes is because in a pyramid the more energy is in the bottom part the biggest part of the pyramid so the less energy goes up the smaller the pyramid gets.

plants need carbon dioxide and water witch it then goes through the process photosynthesis and it turns it into glucose a type of sugar and oxygen.

Tropisms

you could find 4 different types of tropisms in the coniferous forest.

geotropism:gravity causes a response in a plants growth

hydrotropism:the way a plant grows in responses to water

thigmotropism:the way a plant moves or grows because of touch

phototropism:the way a plant grows in response to light

Tropisms help because they help plants get enough water and sunlight to survive.

The role of decomposers

Decomposers help the enviroment because with out them there would be nothing to eat the dead animals so there would be nothing to give the producers energy so they would all die and it would be a waist land.

In the coniferous forest you would find many different varietys of decomposers like earth worms maggats etc.

https://vimeo.com/2187950

Adaptions

Adaptions of an animal are important because they help them with the enviroment that there in like an arctic fox is white like the snow it lives in so it can hunt without being seen.

http://1.bp.blogspot.com/-rJyqOcTIn_4/UT-IHnUfxUI/...

this plant has adapted so that it can eat the bugs and other small organisms to get nutrients.

http://www.teachertube.com/video/animal-adaptations-15006

Lets say we put a polar bear in the desert it has so much fat so that it can survive in the snow so if we put it in the desert it would over heat and die.

natural selection

Natural selection is the gradual process by which heritable biological traits become either more or less common in a population as a function of the effect of inherited traits on the differential reproductive success of organisms interacting with their environment. It is a key mechanism of evolution

http://evolution.berkeley.edu/evosite/misconceps/images/misconceptions_beavers.gif

This beaver has a hand as a chain saw it doesnt seem sientific but it is this beaver had a mutation to where it now has a chain saw to cut wood.

Comment Stream

2 years ago
0

"This beaver has a hand as a chain saw it doesnt seem sientific but it is this beaver had a mutation to where it now has a chain saw to cut wood." It's not. It's a cartoon...