top of page
  • TikTok
  • Facebook
  • Twitter
  • Instagram

GEOGRAPHY

Geography-removebg-preview_edited.png

SIDE Ladder.png

Most Biodiverse Ecosystems

This list features the most biodiverse ecosystems on Earth based on the average number of unique flora and fauna.

RANK

LOCATION

FLORA

FAUNA

DESCRIPTION

1

Amazon Rainforest

16,000

2.5 million

The largest tropical rainforest, the Amazon is home to an incredible variety of plants and animals, including 427 mammal species, 1,300 bird species, and over 2.5 million insect species.

2

Madagascar

14,000

200,000

Known for its unique wildlife, over 90% of Madagascar's wildlife is found nowhere else on Earth, including lemurs and a variety of plant species.

3

Sundaland

12,000

3,000

Comprising the Malay Peninsula and surrounding islands, Sundaland is home to high levels of endemism, including species like orangutans and the Sumatran tiger.

4

Coral Triangle

5,000

2,000

Located in Southeast Asia, this marine area boasts the highest diversity of coral species and supports a vast array of fish and marine life.

5

Great Barrier Reef

400

1,500

The world's largest coral reef system, it supports a diverse range of marine life, including various species of corals, fish, and sea turtles.

6

California Floristic Province

5,500

1,500

A global biodiversity hotspot, this region is known for its unique plant species, including many that are found nowhere else, alongside diverse wildlife habitats.

7

Indo-Burma Region

30,000

1,200

Spanning several countries, this region has a rich variety of habitats, supporting an immense diversity of flora and fauna, including many endemic species.

8

Himalayas

7,000

1,000

The diverse climate and elevation range support a rich variety of flora, including numerous medicinal plants, and fauna such as the snow leopard and red panda.

9

Amazon Basin

15,000

500

This vast area has one of the highest levels of biodiversity on land and in freshwater ecosystems, with many endemic fish species.

10

Western Ghats, India

7,402

139

This mountain range is recognized for its unique biodiversity, with many species of flora and fauna endemic to the region, including various primates and reptiles.


SIDE Ladder.png

References

Fearnside, P. M. (2016). Amazonia: Geography, Ecology, and the Conservation of the Amazon Rainforest. Cambridge University Press. Goodman, S. M., & Benstead, J. P. (2003). The Natural History of Madagascar. University of Chicago Press. Whitten, T., Soeriaatmadja, U., & Afiff, S. A. (2002). The Ecology of Java and Bali. Periplus Editions. Carpenter, K. E., & Springer, V. G. (2005). The Center of the Center of Marine Shore Fish Biodiversity: The Coral Triangle. In Biology and Ecology of Tropical Fishes. CRC Press. Hughes, T. P. (2003). Climate Change, Coral Reef Ecosystems, and the Future of the Great Barrier Reef. Australian Journal of Marine and Freshwater Research. Barbour, M. G., & Billings, W. D. (2000). Northwest California: A Natural History. University of California Press. MacKinnon, J., & MacKinnon, K. (2004). The Indo-Burma Region: An Overview of Biodiversity and Conservation Issues. In Biodiversity and Conservation in the Indo-Burma Region. Cambridge University Press. Singh, J. S., & Singh, S. P. (2011). Ecology of the Himalaya. In Ecology and Conservation of the Himalaya. Springer. Huber, O., & P. M. Fearnside (2012). The Amazon Basin: Natural and Anthropogenic Change. In The Amazon: The Environmental and Social History of the Amazon Basin. Oxford University Press. Gadgil, M., & Meher-Homji, V. (1986). Biodiversity of the Western Ghats. Proceedings of the Indian Academy of Sciences - Animal Sciences.
Screenshot 2024-12-16 at 16.55.04.png

SCALA

lists

CONTACT US

We'd Love to Hear From You!

If you would like to submit a list request, talk business or send over your thoughts, we are all ears!

GET ON THE LADDER!

© 2025 by Scala Lists. All Rights Reserved.

bottom of page