Ecosystem

An ecosystem consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the system through photosynthesis and is incorporated into plant tissue. By feeding on plants and on one another, animals play an important role in the movement of matter and energy through the system. They also influence the quantity of plant and microbial biomass present. By breaking down dead organic matter, decomposers release carbon back to the atmosphere and facilitate nutrient cycling by converting nutrients stored in dead biomass back to a form that can be readily used by plants and microbes. Ecosystems are controlled by external and internal factors. External factors such as climate, parent material which forms the soil and topography, control the overall structure of an ecosystem but are not themselves influenced by the ecosystem.

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Should Low Earth Orbit be a protected environmental ecosystem?

Exquisite Fossils Show an Entire Rain Forest Ecosystem

Just a small rise in Earth’s temperature could cause irreversible ecosystem and weather changes

NASA selects SiFive and makes RISC-V the go-to ecosystem for future missions

Rewilding Could Benefit Ecosystem in American West, New Study Says

China launches carbon and ecosystem monitoring satellite (video)

First photos of cougars killing donkeys in Death Valley suggest big impacts for ecosystem

What Does It Look Like when an Ecosystem Collapses? Kelp Can Show Us

To tame lake-fouling algal blooms, try an ecosystem approach

Scientists show that at least 44 percent of Earth's land requires conservation to safeguard biodiversity and ecosystem services

Study provides long-term look at ways to control wildfire in sagebrush steppe ecosystem

Nonlethal parasites reduce how much their wild hosts eat, leading to ecosystem effects

Lowly mushrooms may be key to ecosystem survival in a warming world

This Tiny Yellow Robot Spies on Antarctica’s Emperor Penguins. The vehicle dubbed ECHO slowly rolls up to the birds without stressing them and may allow researchers to monitor their ecosystem more closely.

The Furry Ecosystem of Algae, Moths and Sloth Feces

How a mound-building bird shapes its Australian ecosystem

A single gene controls species diversity in an ecosystem

Surfing towards coastal ecosystem protection

Researchers discover new species in critically imperiled ecosystem

Study reveals trade-offs between ecosystem resistance and resilience to tropical cyclones