Allometric scaling of a superposition eye optimizes sensitivity and acuity in large and small hawkmoths
Stöckl, Anna LU ; Grittner, Rebecca ; Taylor, Gavin LU
; Rau, Christoph
; Bodey, Andrew J.
; Kelber, Almut
LU
and Baird, Emily
LU
(2022)
In Proceedings of the Royal Society B: Biological Sciences
289(1979).
- Abstract
Animals vary widely in body size within and across species. This has consequences for the function of organs and body parts in both large and small individuals. How these scale, in relation to body size, reveals evolutionary investment strategies, often resulting in trade-offs between functions. Eyes exemplify these trade-offs, as they are limited by their absolute size in two key performance features: sensitivity and spatial acuity. Due to their size polymorphism, insect compound eyes are ideal models for studying the allometric scaling of eye performance. Previous work on apposition compound eyes revealed that allometric scaling led to poorer spatial resolution and visual sensitivity in small individuals, across a range of insect... (More)
Animals vary widely in body size within and across species. This has consequences for the function of organs and body parts in both large and small individuals. How these scale, in relation to body size, reveals evolutionary investment strategies, often resulting in trade-offs between functions. Eyes exemplify these trade-offs, as they are limited by their absolute size in two key performance features: sensitivity and spatial acuity. Due to their size polymorphism, insect compound eyes are ideal models for studying the allometric scaling of eye performance. Previous work on apposition compound eyes revealed that allometric scaling led to poorer spatial resolution and visual sensitivity in small individuals, across a range of insect species. Here, we used X-ray microtomography to investigate allometric scaling in superposition compound eyes-the second most common eye type in insects-for the first time. Our results reveal a novel strategy to cope with the trade-off between sensitivity and spatial acuity, as we show that the eyes of the hummingbird hawkmoth retain an optimal balance between these performance measures across all body sizes.
(Less)
- author
- Stöckl, Anna
LU
; Grittner, Rebecca
; Taylor, Gavin
LU
; Rau, Christoph
; Bodey, Andrew J.
; Kelber, Almut
LU
and Baird, Emily
LU
- organization
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- acuity, allometry, eye morphology, insect, sensitivity, vision
- in
- Proceedings of the Royal Society B: Biological Sciences
- volume
- 289
- issue
- 1979
- article number
- 20220758
- publisher
- Royal Society Publishing
- external identifiers
-
- scopus:85135132571
- pmid:35892218
- ISSN
- 0962-8452
- DOI
- 10.1098/rspb.2022.0758
- language
- English
- LU publication?
- yes
- id
- 0568d238-8aa7-40b7-983a-4b3f7d38a1da
- date added to LUP
- 2022-10-14 14:13:29
- date last changed
- 2024-06-13 20:11:01
@article{0568d238-8aa7-40b7-983a-4b3f7d38a1da,
abstract = {{<p>Animals vary widely in body size within and across species. This has consequences for the function of organs and body parts in both large and small individuals. How these scale, in relation to body size, reveals evolutionary investment strategies, often resulting in trade-offs between functions. Eyes exemplify these trade-offs, as they are limited by their absolute size in two key performance features: sensitivity and spatial acuity. Due to their size polymorphism, insect compound eyes are ideal models for studying the allometric scaling of eye performance. Previous work on apposition compound eyes revealed that allometric scaling led to poorer spatial resolution and visual sensitivity in small individuals, across a range of insect species. Here, we used X-ray microtomography to investigate allometric scaling in superposition compound eyes-the second most common eye type in insects-for the first time. Our results reveal a novel strategy to cope with the trade-off between sensitivity and spatial acuity, as we show that the eyes of the hummingbird hawkmoth retain an optimal balance between these performance measures across all body sizes.</p>}},
author = {{Stöckl, Anna and Grittner, Rebecca and Taylor, Gavin and Rau, Christoph and Bodey, Andrew J. and Kelber, Almut and Baird, Emily}},
issn = {{0962-8452}},
keywords = {{acuity; allometry; eye morphology; insect; sensitivity; vision}},
language = {{eng}},
number = {{1979}},
publisher = {{Royal Society Publishing}},
series = {{Proceedings of the Royal Society B: Biological Sciences}},
title = {{Allometric scaling of a superposition eye optimizes sensitivity and acuity in large and small hawkmoths}},
url = {{http://dx.doi.org/10.1098/rspb.2022.0758}},
doi = {{10.1098/rspb.2022.0758}},
volume = {{289}},
year = {{2022}},
}