Feather Barbule Orientation and Iridescence Model for Coeligena Hummingbirds

ANATOBIRD is a morphology-informed computational modeling framework for simulating the optical response of iridescent feather structures. The model integrates microstructural geometry, including barbule inclination, with nanoscale multilayer architecture composed of melanin, keratin, and air layers. It was authored by Ana Maria Valencia Palacios and last updated on April 20, 2026.

Use Cases

• Simulating angle-dependent reflectance spectra based on feather microstructure geometry.
• Comparing simulated and experimental spectra to quantify the link between morphology and visual signals.
• Modeling the optical effects of variable illumination and observation conditions on iridescent structures.

Strengths

• Framework integrates multiple physical principles: geometric optics and thin-film interference.
• Model couples specific structural components: barbule inclination and nanoscale melanin-keratin-air layers.
• Last updated on April 20, 2026, indicating recent maintenance.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale modeling.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Harvard Dataverse

Collection Method

Computational modeling framework integrating morphological and optical principles.

Time Range

The model's temporal coverage is not specified.

Freshness

Last updated 2026-04-20 14:37:43

Geography

The dataset's spatial coverage is not specified.