UV Fluorescence Screening
Definition
Examination of feathers or fur under long-wave ultraviolet (365 nm) to detect dyeing, bleaching, or species-characteristic fluorescence patterns. A rapid triage tool, not a definitive identification method.
- Field
- Wildlife and trace hair/feather examination
- Wavelength
- Long-wave UV, 365 nm
- Detects
- Dyeing, bleaching, species-characteristic fluorescence
- Evidentiary weight
- Rapid triage tool, not definitive identification
Common questions
Why is UV fluorescence screening only a triage step rather than a final answer?+
Fluorescence patterns can vary with age, weathering, and individual specimen condition, and different species can occasionally show overlapping responses, so a positive or unusual result flags a sample for confirmatory microscopy or DNA testing rather than closing the identification.
What does detecting dyeing or bleaching add to a wildlife case?+
It can reveal that fur or feathers were processed or disguised to obscure the source species, which is relevant when a trafficking case depends on proving deliberate concealment of a protected species' origin.
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