New methods for quantifying the spatial storage effect: an illustration with desert annuals.

Area of Science:

• Ecology
• Community Ecology
• Plant Ecology

Background:

• Species coexistence is a fundamental ecological concept.
• The spatial storage effect proposes that species-specific environmental responses promote coexistence.
• Quantifying this effect requires measuring the covariance between environmental response and competition.

Purpose of the Study:

• To demonstrate a method for quantifying the spatial storage effect.
• To apply this method to a model field system of desert annual plants.
• To compare the spatial storage effect with neighborhood-scale resource partitioning.

Main Methods:

• Utilizing neighborhood competition experiments in a desert annual plant system.
• Quantifying the spatial storage effect through covariance analysis.
• Comparing measured spatial storage effect with resource partitioning.

Main Results:

• The study successfully demonstrates the quantification of the spatial storage effect in a field system.
• Insights into the dynamics of desert annual plant communities were provided.
• The spatial storage effect was compared with resource partitioning.

Conclusions:

• The spatial storage effect is a measurable mechanism promoting species coexistence.
• The demonstrated methods are applicable to existing and future ecological datasets.
• Understanding these dynamics is crucial for community ecology research.