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A drought-thinned grassland can benefit its survivors

Experimental loss of some neighbors gave a foundational C4 grass more soil moisture.

Evidence
Peer-reviewed
Geography
Colorado Plateau grassland, USA
System
Arid grassland competition and drought

WHAT THE EVIDENCE SAYS

Removing C3 grasses and forbs increased soil moisture and physiological or biomass performance for Pleuraphis jamesii, while removing C4 neighbors had different effects.

WHY IT MATTERS / OUR READ

Increased vigor of a survivor after species loss is not evidence of healthier community function.

CAVEATS / UNCERTAINTY

Experimental neighbor removal is not observed climate-driven die-off; results depend on functional group and water pulses.

SOURCE

Oecologia (27 Oct 2026)
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