habitat changes wiki
TRANSCRIPT
Habitat changes
1-Changes by nature
Fire
Once upon a time there was a forest where the animals live happily, they have
a safe shelter and they could find their food
But one day a fire has came to burn everything , the animals’ shelters and the trees, but all the animals could run away
so they’ve stayed safe
When the fire ended the animals came back to find their homes burned, as well
as all plants
Animals can’t find their food or shelter and some of them died ,so
they become (Endangered)
DROUGHT
A long time when there is little or no rain
1-Losses or destruction of fish and wildlife habitat
2-Lack of food and drinking water for wild animals
3-Increased endangered animals or even extinction
4-Loss of wetlands
Floods Too much rain in a short period of time
Floods kill animals and people
Floods have rushing water that destroys everything in its path
2-Changes by animals
Beavers and dams
The stream
The beaver
It is looking for a shelter (DAM)
First of all they gnaw a tree down then gnaw the branches off and float them down the river into the spot that they will do the dam,the beaver piles logs on the surface of the water than it swims underneath the pile and puts up poles to support the logs and build a roof
Beavers usually build a dam where there is water, so they end up blocking off water in one side of the stream. This means the water backs up and had to go some place else
so this means a lake or pond is formed.
A pond is formed
3-Changes by people
• People may build there homes on the animals
habitat
• People may cut the
trees to get their wood
• People may kill animals to get their
fur so animals become
endangered
When many of one kind of animal die and only a few are
left that animal is
Endangered
A plant or animal becomes extinct when there are no more of its kind left
Extinct
Dinosaurs