A practical checklist

  1. Identify the same landmark and direction on both visits.
  2. Attach photos to separate activities with their actual work or observation dates.
  3. Write what changed in the image and what cannot be inferred from it.
Illustrative recordA worked example

June 1 notes: “East lane, facing west toward low strip.” June 10 notes use the same viewpoint and say “More visible emergence in pictured strip; no plant count made.” The change is visual, not a measured population.

What to avoid

Different lighting, distance, or framing can create an apparent difference. Do not report a numerical improvement from photos without an appropriate measurement.

All record photos guides