UV-Excited Fluorescence on Riparian Insects except Hymenoptera Is Associated with Nitrogen Content

I photographed ultraviolet-excited fluorescence of external resilin on insects in 7 orders, 17 families, and 18 genera collected from shrubs and trees alongside the Colorado River in western Arizona, USA. The localized blue-fluorescence characteristic of resilin was emitted by a variety of structur...

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Main Author: William D. Wiesenborn
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Psyche: A Journal of Entomology
Online Access:http://dx.doi.org/10.1155/2011/875250
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author William D. Wiesenborn
author_facet William D. Wiesenborn
author_sort William D. Wiesenborn
collection DOAJ
description I photographed ultraviolet-excited fluorescence of external resilin on insects in 7 orders, 17 families, and 18 genera collected from shrubs and trees alongside the Colorado River in western Arizona, USA. The localized blue-fluorescence characteristic of resilin was emitted by a variety of structures including sutures and wing articulations on Odonata and Diptera and membranous wings, compound eyes, or ocelli on Hemiptera, Neuroptera, and Hymenoptera. Different widespread, but blotchy, light-blue fluorescence was observed on cuticles of immature Orthoptera and adult Hemiptera. Insects in Hymenoptera and Coleoptera fluoresced least. Ranked amounts of fluorescence, relative to body area, were positively correlated with ranked nitrogen contents (%N of body dry-mass) of insects in genera excluding Hymenoptera. Nitrogen concentrations in insect exoskeletons appear to increase as abundances of resilin and other fluorescent, elastic proteins increase. These structural compounds may be an important nitrogen source for insectivorous vertebrates.
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spelling doaj-art-f08ad896e20d48f5b9c264d3bac5c1762025-02-03T05:48:18ZengWileyPsyche: A Journal of Entomology0033-26151687-74382011-01-01201110.1155/2011/875250875250UV-Excited Fluorescence on Riparian Insects except Hymenoptera Is Associated with Nitrogen ContentWilliam D. Wiesenborn0USDI Bureau of Reclamation, Lower Colorado Regional Office, P.O. Box 61470, Boulder City, NV 89006, USAI photographed ultraviolet-excited fluorescence of external resilin on insects in 7 orders, 17 families, and 18 genera collected from shrubs and trees alongside the Colorado River in western Arizona, USA. The localized blue-fluorescence characteristic of resilin was emitted by a variety of structures including sutures and wing articulations on Odonata and Diptera and membranous wings, compound eyes, or ocelli on Hemiptera, Neuroptera, and Hymenoptera. Different widespread, but blotchy, light-blue fluorescence was observed on cuticles of immature Orthoptera and adult Hemiptera. Insects in Hymenoptera and Coleoptera fluoresced least. Ranked amounts of fluorescence, relative to body area, were positively correlated with ranked nitrogen contents (%N of body dry-mass) of insects in genera excluding Hymenoptera. Nitrogen concentrations in insect exoskeletons appear to increase as abundances of resilin and other fluorescent, elastic proteins increase. These structural compounds may be an important nitrogen source for insectivorous vertebrates.http://dx.doi.org/10.1155/2011/875250
spellingShingle William D. Wiesenborn
UV-Excited Fluorescence on Riparian Insects except Hymenoptera Is Associated with Nitrogen Content
Psyche: A Journal of Entomology
title UV-Excited Fluorescence on Riparian Insects except Hymenoptera Is Associated with Nitrogen Content
title_full UV-Excited Fluorescence on Riparian Insects except Hymenoptera Is Associated with Nitrogen Content
title_fullStr UV-Excited Fluorescence on Riparian Insects except Hymenoptera Is Associated with Nitrogen Content
title_full_unstemmed UV-Excited Fluorescence on Riparian Insects except Hymenoptera Is Associated with Nitrogen Content
title_short UV-Excited Fluorescence on Riparian Insects except Hymenoptera Is Associated with Nitrogen Content
title_sort uv excited fluorescence on riparian insects except hymenoptera is associated with nitrogen content
url http://dx.doi.org/10.1155/2011/875250
work_keys_str_mv AT williamdwiesenborn uvexcitedfluorescenceonriparianinsectsexcepthymenopteraisassociatedwithnitrogencontent