1. The stress-gradient hypothesis (SGH) states that environmental stress modulates species interactions, causing a shift from negative interactions to net positive interactions with increasing stress.

PROVIDENCE, R.I. [Brown University] — Ecology is rife with predation, competition, and other dramatic "negative interactions," but those alone do not determine the course life on Earth. Organisms ...

This is a preview. Log in through your library . Abstract The stress-gradient hypothesis predicts that interactions among plants are context dependent, shifting from facilitation to competition as ...

Environmental stress changes the relationship between biodiversity and ecosystem functions, but the underlying mechanisms are poorly understood. Because species interactions shape ...

The Stress Gradient Hypothesis holds that as stress increases in an ecosystem, mutually supportive interactions become more significant and negative interactions, such as competition, become less so.