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Willey-Willey grasshopper census method (Acrididae)
Local Knowledge Graph (35 entities)
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Knowledge graph centered on Willey-Willey grasshopper census method (Acrididae) with 35 nodes and 128 connections. Top connected: Spruce, Erigeron, Populus, Populus tremuloides, Taraxacum.
Description
Systematic walking surveys through grasshopper habitat to count and score individuals for wing color morphs (orange vs yellow) across multiple populations and years. Researchers targeted 100 individuals per deme using non-repeating spatial patterns.
Typical Equipment
- U.S. Geological Survey 7.5-minute topographic maps
- field data sheets
Output Measurements
- wing color frequencies
- population sizes
- morph ratios