Animal nitrogen swap for plant carbon

Article Abstract:

Observations are presented describing how a common boreal tree species is able to act indirectly as a predator of arthropods living in the soil, because a fungal symbiont uses the plant's carbon in exchange for its own animal nitrogen. This reveals a more flexible and efficient nitrogen cycle than has been assumed, and indicates the possibility that forest-nutrient cycling is more tightly linked and complicated than scientists believe.

Observations, Predation (Biology), Food chains (Ecology), Food chains, Nitrogen cycle, Predation

---

Abrupt rise in atmospheric CO (sub) 2 overestimates community response in a model plant-soil system

Article Abstract:

The ecological effect of increasing atmospheric CO (sub) 2 concentration, CO (sub) 2, usually involves exposing today's ecosystems to expected future CO (sub) 2 levels. However, a major assumption of these approaches has not been tested that exposing ecosystems to a single-step increase in CO (sub) 2 will yield similar responses to those of a gradual increase over several decades.

United States, Environmental aspects, Atmospheric carbon dioxide, Atmospheric gases

---

Rise in carbon dioxide changes soil structure

Article Abstract:

It is shown that water stability and size distribution of aggregates is affected by long-term CO(sub2) fumigation, in three ecosystems. A mechanism for this is proposed involving the production of the glycoprotein glomalin by fungi. It is suggested that changes in soil structure in response to CO(sub2) enrichment should be included in global research.

Research, Carbon dioxide, Soil structure

Similar abstracts:

• Abstracts: Importance of iron for plankton blooms and carbon dioxide drawdown in the Southern Ocean. Making sense
• Abstracts: Conformational identification of individual adsorbed molecules with the STM. Observation of nuclear fusion driven by a pyroelectric crystal
• Abstracts: The hydrogenosome's murky past. Gene transfer to plants by diverse species of bacteria. Gene exchange by design
• Abstracts: A massive black hole at the centre of the quiescent galaxy M32. Energy input from quasars regulates the growth and activity of black holes and their host galaxies

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.