Potential for identification of wild night-flying moths by remote infrared microscopy
Li, Meng LU
; Seinsche, Clara
; Jansson, Samuel
LU
; Hernandez, Julio
; Rota, Jadranka
LU
; Warrant, Eric
LU
and Brydegaard, Mikkel
LU
(2022)
In Journal of the Royal Society Interface
19(191).
- Abstract
- There are hundreds of thousands of moth species with crucial ecological roles that are often obscured by their nocturnal lifestyles. The pigmentation and appearance of moths are dominated by cryptic diffuse shades of brown. In this study, 82 specimens representing 26 moth species were analysed using infrared polarimetric hyperspectral imaging in the range of 0.95–2.5 µm. Contrary to previous studies, we demonstrate that since infrared light does not resolve the surface roughness, wings appear glossy and specular at longer wavelengths. Such properties provide unique reflectance spectra between species. The reflectance of the majority of our species could be explained by comprehensive models, and a complete parametrization of the spectral,... (More)
- There are hundreds of thousands of moth species with crucial ecological roles that are often obscured by their nocturnal lifestyles. The pigmentation and appearance of moths are dominated by cryptic diffuse shades of brown. In this study, 82 specimens representing 26 moth species were analysed using infrared polarimetric hyperspectral imaging in the range of 0.95–2.5 µm. Contrary to previous studies, we demonstrate that since infrared light does not resolve the surface roughness, wings appear glossy and specular at longer wavelengths. Such properties provide unique reflectance spectra between species. The reflectance of the majority of our species could be explained by comprehensive models, and a complete parametrization of the spectral, polarimetric and angular optical properties was reduced to just 11 parameters with physical units. These parameters are complementary and, compared with the within-species variation, were significantly distinct between species. Counterintuitively to the aperture-limited resolution criterion, we could deduce microscopic features along the surface from their infrared properties. These features were confirmed by electron microscopy. Finally, we show how our findings could greatly enhance opportunities for remote identification of free-flying moth species, and we hypothesize that such flat specular wing targets could be expected to be sensed over considerable distances. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/525a8aba-b009-41fa-8a35-13c25d4f8f62
- author
- Li, Meng
LU
; Seinsche, Clara
; Jansson, Samuel
LU
; Hernandez, Julio
; Rota, Jadranka
LU
; Warrant, Eric
LU
and Brydegaard, Mikkel
LU
- organization
- publishing date
- 2022-06-22
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- remote sensing, surface roughness, infrared spectroscopy, lepidoptera, hyperspectral imaging, microstructure, LIDAR measurements
- in
- Journal of the Royal Society Interface
- volume
- 19
- issue
- 191
- article number
- 2022.0256
- publisher
- The Royal Society of Canada
- external identifiers
-
- scopus:85132307587
- pmid:35730175
- ISSN
- 1742-5662
- DOI
- 10.1098/rsif.2022.0256
- language
- English
- LU publication?
- yes
- id
- 525a8aba-b009-41fa-8a35-13c25d4f8f62
- date added to LUP
- 2022-06-15 14:53:18
- date last changed
- 2024-08-23 00:23:47
@article{525a8aba-b009-41fa-8a35-13c25d4f8f62,
abstract = {{There are hundreds of thousands of moth species with crucial ecological roles that are often obscured by their nocturnal lifestyles. The pigmentation and appearance of moths are dominated by cryptic diffuse shades of brown. In this study, 82 specimens representing 26 moth species were analysed using infrared polarimetric hyperspectral imaging in the range of 0.95–2.5 µm. Contrary to previous studies, we demonstrate that since infrared light does not resolve the surface roughness, wings appear glossy and specular at longer wavelengths. Such properties provide unique reflectance spectra between species. The reflectance of the majority of our species could be explained by comprehensive models, and a complete parametrization of the spectral, polarimetric and angular optical properties was reduced to just 11 parameters with physical units. These parameters are complementary and, compared with the within-species variation, were significantly distinct between species. Counterintuitively to the aperture-limited resolution criterion, we could deduce microscopic features along the surface from their infrared properties. These features were confirmed by electron microscopy. Finally, we show how our findings could greatly enhance opportunities for remote identification of free-flying moth species, and we hypothesize that such flat specular wing targets could be expected to be sensed over considerable distances.}},
author = {{Li, Meng and Seinsche, Clara and Jansson, Samuel and Hernandez, Julio and Rota, Jadranka and Warrant, Eric and Brydegaard, Mikkel}},
issn = {{1742-5662}},
keywords = {{remote sensing; surface roughness; infrared spectroscopy; lepidoptera; hyperspectral imaging; microstructure; LIDAR measurements}},
language = {{eng}},
month = {{06}},
number = {{191}},
publisher = {{The Royal Society of Canada}},
series = {{Journal of the Royal Society Interface}},
title = {{Potential for identification of wild night-flying moths by remote infrared microscopy}},
url = {{http://dx.doi.org/10.1098/rsif.2022.0256}},
doi = {{10.1098/rsif.2022.0256}},
volume = {{19}},
year = {{2022}},
}