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Biogeography

life science Maturity 7-9 Next article →

Biogeography is the study of where living things live.

The Earth seen from Apollo 17 with transparent background
The Earth seen from Apollo 17 with transparent background

It looks at how species are spread across the world. Scientists also look at how these patterns change over huge amounts of time. There are different branches of this science. Phytogeography studies where plants grow. Zoogeography looks at the homes of animals. Mycogeography focuses on fungi, like mushrooms.

Aegopodium podagraria1 ies
Aegopodium podagraria1 ies

This field helps us understand our own world. It connects many ideas like geology, climate, and how life evolves.

Many things decide where a species can live. Scientists look at how landmasses are shaped and how isolated they are. They also look at how much energy a habitat can provide. Changes in sea levels or river paths can move life around.

Europe biogeography countries en
Europe biogeography countries en

Even the movement of continents plays a part. A long time ago, all land was joined in one piece called Pangea.

Wegener fossils-mapped
Wegener fossils-mapped

As the plates under the Earth moved, the continents drifted apart. This split groups of living things into new, separate homes.

Many famous explorers helped build this science. In the 1700s, Carl Linnaeus helped classify the living world. Georges-Louis Leclerc, Comte de Buffon, noticed how different regions had different life forms.

Tree of life by Haeckel
Tree of life by Haeckel

Later, Alexander von Humboldt studied how climate affects plants. He even created isotherms, which are lines on a map that show temperature patterns. Augustin de Candolle studied how plants compete for space. These thinkers helped us see that life is not just random. It follows patterns tied to the Earth itself.

Other scientists found even deeper reasons for these patterns. Charles Lyell showed that the Earth is very old and changes slowly. This helped Charles Darwin develop his ideas about natural selection.

Darwin's finches by Gould
Darwin's finches by Gould

Darwin studied animals in the Galapagos Islands to see how they changed. Alfred Russel Wallace is often called the "father of biogeography." He studied birds and butterflies in the Amazon and the Malay Archipelago.

Alfred Russel Wallace's map of biogeographical regions
Alfred Russel Wallace's map of biogeographical regions

Wallace noticed that the number of animals depends on how much food is available in a habitat.

Today, scientists use special tools to study these patterns. They use Geographic Information Systems, or GIS, to make digital maps.

Land ocean ice cloud hires
Land ocean ice cloud hires

These computer systems help them solve problems about space and nature. They can even try to predict where species might move in the future. Islands are still some of the best places to learn.

Pleuroceras ammonite with no background
Pleuroceras ammonite with no background

Because islands are small, they are easier to manage for study. Scientists can watch how new species arrive and change an island's ecosystem.

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🖼️ Images & Media (15)
File:Europe biogeography countries en.svg
Europe biogeography countries en.svg
File:Tree of life.svg
Tree of life.svg
File:Snider-Pellegrini Wegener fossil map.svg
Snider-Pellegrini Wegener fossil map.svg
File:WikiProject Geology.svg
WikiProject Geology.svg
File:Land ocean ice cloud hires.jpg
Land ocean ice cloud hires.jpg
File:Earth Day Flag.png
Earth Day Flag.png
File:Pleuroceras ammonite with no background.png
Pleuroceras ammonite with no background.png
File:The Earth seen from Apollo 17 with transparent background.png
The Earth seen from Apollo 17 with...
File:Wegener fossils-mapped.png
Wegener fossils-mapped.png
File:Tree of life by Haeckel.jpg
Tree of life by Haeckel.jpg
File:Alfred Russel Wallace's map of biogeographical regions.jpg
Alfred Russel Wallace's map of...
File:Darwin's finches by Gould.jpg
Darwin's finches by Gould.jpg

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