Monitoring aerial insect biodiversity: a radar perspective

Area of Science:

• Ecology
• Remote Sensing
• Biodiversity Science

Background:

• Insect populations are declining globally, exacerbating the biodiversity crisis.
• Monitoring small, nocturnal, or migratory insects presents significant challenges for traditional methods.
• Remote sensing technologies, particularly radar, show promise for overcoming these monitoring limitations.

Purpose of the Study:

• To review the current use of radar technology for insect monitoring.
• To outline how radar data can contribute to essential biodiversity variables (EBVs).
• To explore future advancements in radar-based insect biodiversity monitoring.

Main Methods:

• Review of existing research on small-scale biological and weather surveillance radars for insect detection.
• Analysis of how radar-derived measures contribute to EBVs: species population, traits, community composition, and ecosystem function.
• Synthesis of methodological, analytical, and technological advancements for radar applications.

Main Results:

• Radars provide detailed data on intensity, timing, altitude, and spatial scale of aerial insect movements.
• Radar-derived data can inform key EBVs, enhancing biodiversity assessment.
• Existing research demonstrates the potential of radar for insect monitoring.

Conclusions:

• Radar technology is a powerful, yet underutilized, tool for insect biodiversity monitoring.
• Advancements in radar technology and analysis will expand its application in biodiversity science.
• Radar-based approaches offer long-term, large-scale monitoring capabilities essential for addressing the biodiversity crisis.