Follow us  

Ecosystems

Introduction

What is an ecosystem

The climatic regions of the Earth gave origin to a large variety of natural environments. Each habitat is formed by a community of animals and plants, called ecosystem, that, in order to survive, must adapt to the surrounding environment exploiting its resources as best they can. 550 million years ago plants began to grow on the Earth, creating the first environment that was suited for animal life; initially mosses and ferns were dominant, then conifers developed, and then flowering plants. At the same time, also herbivorous animals evolved and the foundations for the complex ecosystems of today were laid.

Specials

Environmental risk in Nepal
The government institution in charge of management of...

Protected areas

Protecting nature, at least as a general concept, has...


Read all the Specials Reports

More info

A heavenly garden
In Cornwall huge sphere greenhouses were built...

The concentration of elements
In nature the quantity of elements is extremely important...

Read all the Curiosities

Related topics

Earth
Observing the Earth’s surface
Atmosphere and hydrosphere get in contact with rocks and minerals on...
Read more

Earth
Ocean floor
When we explore an ocean floor, we meet huge and long...
Read more

multimedia


Ecosystems/Photos
Welwitschia

Ecosystems/Photos
History

Ecosystems/Graphs and Tables
Endangered ecosystems

Ecosystems/Graphs and Tables
The components of an ecosystem