What happens after drought ends: synthesizing terms and definitions

Area of Science:

• Ecology
• Climate Change Science
• Environmental Science

Background:

• Global droughts are intensifying due to climate change, necessitating research into ecosystem functioning during and after these events.
• Existing literature extensively covers ecosystem responses during drought but lacks focus on post-drought dynamics.
• Inconsistent terminology for drought and post-drought ecosystem responses hinders clear communication and synthesis.

Purpose of the Study:

• To review and clarify the diverse terms ecologists use to describe ecosystem responses following drought.
• To establish standardized definitions for post-drought ecological dynamics.
• To propose a framework for understanding and communicating post-drought ecosystem behavior.

Main Methods:

• Systematic literature review of ecological studies focusing on post-drought ecosystem responses.
• Analysis of terminology used to describe ecosystem recovery, resilience, and legacy effects after drought.
• Synthesis of findings to develop a generalized framework for the post-drought period.

Main Results:

• Commonly used terms for post-drought responses include legacy effects, resilience, and recovery, but their definitions are highly variable.
• The review identified significant inconsistencies in how post-drought ecosystem dynamics are described in scientific literature.
• A need for clearer, more consistent terminology to accurately capture post-drought ecological processes was highlighted.

Conclusions:

• A proposed framework, termed 'the post-drought period,' is introduced to generalize ecosystem responses after drought cessation.
• Future research should clearly define drought characteristics and adopt 'post-drought period' as a general term.
• Specific terms like legacy effects, resilience, and recovery should be used as precise descriptors within the broader post-drought period framework.