Tag

Forest Ecosystems

All articles tagged with #forest ecosystems

science2 years ago

The Paradox of Parasites: Fueling Forest Life

Parasitic fungi, such as the vegetable caterpillar fungus Ophiocordyceps robertsii, play a crucial role in regulating insect populations and maintaining balance in forest ecosystems. These fungi infect and consume the innards of their insect hosts, transforming them into mummified structures from which spores are released. By targeting specific arthropod species, the fungi prevent any one group from dominating and help keep ecosystems stable. Vegetable caterpillars are found in diverse habitats worldwide and have evolved various strategies to manipulate their hosts. Their parasitic nature is essential for preventing population explosions and maintaining forest dynamics.

environment2 years ago

The Secret Communication Network of Trees and Fungi

The mother tree hypothesis, which suggests that large trees share carbon and nutrients with saplings through underground fungal networks, has limited empirical evidence and theoretical explanations for its mechanisms. The fungal network is more likely a trading ground for individual trees and fungi, each trying to survive, rather than a pipeline for resource sharing among trees. The forest is a complex ecosystem with trees, fungi, and other organisms, which are all interdependent but not guided by a common purpose.