What happens when people abandon a city? Nature takes over. Example: From farmland to forest.
- Abandoned farm : the pionner species take place things like grass, insects, adn crabgrass.
- Second a third year: tall weeds, small mammals like mice and rabbits, insects, and eatin-birds seed and insect form a pionner community.
- Four to six years: more birds are join to the community, pine trees, small mammals like opossums adn skunks.
- Twenty-five yars later: a pine forest has replaced the old farm field. Seeds of a decidious trees such as maple, hickory, larger animal like raccons and foxes.
- One hundread years later: the forest is now mostly decidious trees. This trees are the habits of many animals like birds and small mammals like squirrels. Deers, raccons, and foxes also live in the forest.
The gradual replacement of one coummunity bu another is called ecological succesion. The ecological succesion can begin in two different kinds of places. It can begin where community already exists. Ecological succesion in a place where a community alraedy exist is called secondary succesion. The ecological succesion can also happen where thre few, if any, living things. This is called primary succesion.
All the animals need to adapt to their ecosysytems, so here you will see s about their ecosystems:
Anything that controls the growth or survival of a population is called a limiting factor. Some limitings factors are nonliving: sunlight, wind, water, and tempreture. How livingyhings survivr in harsh enviroment? First is adaptation are the characteristict that haelp an organism survive in its enviroment. The organism interact in different ways, this is called symbiosis is the nature relarionship between two kinds of organism that last over a period of time. They are the Mutualism, Parasitism, and Commensalism:
- Mutualism: is the ralationship between two organism that both are benefits, example: yucca trees and yucca moths depend on each other for survival, each helps the other reproduce.
- Parasitism: a ralationship in which one kind of organism lives on or in the another organism and may harm that organism. The organism that live on or in other organisms are called parasites. Example: dog and the flea.
- Commensalism: the ralationship where organism benefits from another without harming or helping. Example: orchids benefit from their position on the trunks of trees.
In the 5 grade A and B is a debate about the question: are the Panamenias taking care of the enviroment? They are two teams AGREE (I'm agree) and DESAGREE. I AGREE because her in Panam are about 14 national park that take care of our country example:
- Altos de Campana National park.
- Baru Volacano National park
- Chagres National park
- Metrapolitan National park
- Soberania National Park
- Portobelo National park
SO all this is goin to be talk in class. The others you can also answer this questions. GO GREEN!!!!!
