(PhysOrg.com) -- Terms such as the "invisible hand," laissez-faire policy, and free-market principles suggest that economic growth and decline in capitalist societies seem to be somehow self-regulated. Now, scientists Arto ...
A previously unknown mathematical property has been found to be behind one of nature's greatest mysteries – how ecosystems survive.
Mathematics
Dec 22, 2014
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0
Atomic bomb tests conducted during the Cold War have helped scientists for the first time correctly determine the age of whale sharks.
Plants & Animals
Apr 6, 2020
1
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The idea of food chains and food webs in the animal kingdom is simple: Remove a link or thread, and the system is broken. But nature is complex, and it's not always clear how the absence of one species may impact others.
Plants & Animals
Mar 7, 2022
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475
University of Delaware doctoral student Desiree Narango is researching trees and shrubs planted in the lawns of homeowners throughout the Washington, D.C., Maryland and northern Virginia areas to assess how those choices ...
Plants & Animals
Oct 30, 2017
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617
The sea floor around the West Antarctica peninsula could become invaded by a voracious king crab, which is on the march thanks to global warming, biologists reported on Wednesday.
Ecology
Sep 7, 2011
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A new tool developed by European and Australian scientists enabling unparalleled modeling of interconnected species loss shows cascading extinctions are unavoidable, and that the Earth will lose some 10% of its animals and ...
Environment
Dec 16, 2022
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1039
A Colorado State University experiment spanning more than two decades has found that removal of apex predators from an ecosystem can create lasting changes that are not reversed after they return—at least, not for a very ...
Plants & Animals
Feb 6, 2024
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323
Some of the world's largest, most spectacular and unheralded mammals are silently slipping away, species like Tibetan wild yaks and Patagonia's huemul, Bhutan's takin and Vietnam's saola. Even Africa's three species of zebras ...
Ecology
Jun 9, 2020
0
1633
Scientists at Duke University are harnessing the power of big data and geospatial analysis to create new ways to track the effects of climate change on species and food webs. Their work, which is funded by the National Science ...
Plants & Animals
Jul 13, 2020
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800
Food chains, also called food webs, describe the eating relationships between species within an ecosystem or a particular living place. Many types of food chains or webs are applicable depending on habitat or environmental factors.
Organisms are connected to the organisms they consume by lines representing the direction of organism or energy transfer. It also shows how the energy from the producer is given to the consumer. Typically a food chain or food web refers to a graph where only connections are recorded, and a food network or ecosystem network refers to a network where the connections are given weights representing the quantity of nutrients or energy being transferred.
Sometimes, on a food chain, each animal is separated with an arrow. If it is pointing right, it means "is eaten by" or "is consumed by".
Every single food chain known to Man begins with a type of autotroph, whether it be a plant or some kind of unicellular organism.
This text uses material from Wikipedia, licensed under CC BY-SA
