Ecosystems are made up of living – or biotic – organisms, like plants and animals;which rely on nonliving – or abiotic – things, like the sun and the weather,to survive and thrive.

Often, this is a sign of trouble that can be caused by biotic or abiotic issues but not always a major cause for alarm. The dropping leaves can be a symptom of foliar diseases which weakens the tree, ...

Abiotic stresses, such as cold, heat, drought, salinity, and heavy metals, limit plant growth. Plants interact with a wide ...

The biotic parts of the ecosystem, which include bacteria, flora and fauna, have a complex relationship with the abiotic components - changing one will lead to a change in the other.