We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.
Biology

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

What are Some Major Ecosystems?

Michael Anissimov
By
Updated: May 21, 2024
Views: 21,800
Share

An ecosystem is a natural unit consisting of the abiotic (non-living) portion of an environment interacting with the biotic (living) plants and animals that are adapted to it. There are hundreds of ecosystems on the planet, divided into primary categories (i.e., desert) and numerous subcategories (i.e., Western Australia Desert). The major ecosystems on the planet are marine ecosystems, including the photic zone (within 200 m of the surface) and the abyssal plain (the ocean floors). The concept of an ecosystem is very similar to that of a biome.

The major ecosystems on the planet aside from aquatic ecosystems are the taiga (Canadian and Siberian coniferous forests), grasslands (covering most of Asia and North America), and the deep subterranean ecosystem, which extends 2-4 miles beneath the surface of the Earth and is primarily populated by bacteria. The latter is also known as the Subsurface Lithoautotrophic Microbial Ecosystem and is one of the least studied ecosystems on Earth, despite being one of the largest. Much of the planet can also be regarded as human-influenced ecosystems, as humans are so numerous and intervene in nature so frequently that few regions are untouched.

Ecosystems are often defined in terms of the primary producers (vegetation), which serve as the base of the ecosystem and which everything else eats, either directly (consumers) or indirectly (predators). In order of rough proximity to the equator, some major ecosystems defined by vegetation are tropical rainforest, subtropical rainforest, coniferous forest, grasslands, taiga, and tundra. These are intermixed with mountainous and desert ecosystems, each with their own unique flora and fauna. There are also a number of human major ecosystems, such as croplands and cities.

The most important terrestrial major ecosystem is rainforest – rainforests contain more than half of all biodiversity, maybe as much as 80%. Unfortunately, rainforests are also one of the fastest-disappearing ecosystems, destroyed by land clearing for agriculture. Unless this land clearing is aggressively halted, rainforests could disappear by 2100 or earlier.

Share
All The Science is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Michael Anissimov
By Michael Anissimov
Michael Anissimov is a dedicated All The Science contributor and brings his expertise in paleontology, physics, biology, astronomy, chemistry, and futurism to his articles. An avid blogger, Michael is deeply passionate about stem cell research, regenerative medicine, and life extension therapies. His professional experience includes work with the Methuselah Foundation, Singularity Institute for Artificial Intelligence, and Lifeboat Foundation, further showcasing his commitment to scientific advancement.
Discussion Comments
By istria — On May 26, 2011

Someone once told me that mangrove ecosystems are very important because they are the link between the terrestrial and aquatic ecosystems. How do these ecosystems interact with ocean and terrestrial ecosystems?

By aplenty — On May 25, 2011

@georgesplane- I saw a show recently about how the fishing industry in japan is being devastated by a certain type of giant jellyfish blooms. The jellyfish are blooming because of increased water temperatures and a lack of fish to eat the jellyfish in their plankton stage. The lack of fish is due to overfishing so it is a manmade problem that creates a positive feedback loop. The waters around japan are becoming an endangered ecosystem because the blooms used to happen only once every 40 years. Now they happen every year, and it is destroying sea life and the fishing industry.

The life cycle of these 400 pound jellyfish is amazing. The jellyfish each release a billion eggs upon spawning. When they are fertilized and settle on the ocean floor, they then split into hundreds more organisms. Once the conditions are right, the polyps each release tens more jellyfish. The narrator of the show said that a single jellyfish could theoretically spawn a trillion more jellyfish. It is no wonder they are overrunning the seas.

By Georgesplane — On May 24, 2011

The primary producers in ocean ecosystems are phytoplankton. Without phytoplankton, the biodiversity in ocean ecosystems would be much less than it is today. If one thinks about how much area the oceans cover, the amount of biodiversity in the oceans, and the number of people dependent on the oceans biodiversity for survival, one could argue that phytoplankton is the most important primary producer in the world.

Lastly, I would also like to point out that phytoplankton is not one single organism. They are a collection of at least 5000 known organisms that are mostly photosynthetic in nature. Some phytoplanktons however are classified further as zooplankton, which are the "animal" like counterpart to the phytoplankton. Furthermore, the phytoplankton in the world’s oceans, seas, and lakes account for about half of the world’s photosynthetic activity.

Michael Anissimov
Michael Anissimov
Michael Anissimov is a dedicated All The Science contributor and brings his expertise in paleontology, physics, biology...
Learn more
Share
https://www.allthescience.org/what-are-some-major-ecosystems.htm
Copy this link
All The Science, in your inbox

Our latest articles, guides, and more, delivered daily.

All The Science, in your inbox

Our latest articles, guides, and more, delivered daily.