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Surface area - volume ratios in insects.

Kühsel, Sara and Brückner, Adrian and Schmelzle, Sebastian and Heethoff, Michael and Blüthgen, Nico (2017):
Surface area - volume ratios in insects.
In: Insect science, pp. 829-841, 24, (5), ISSN 1744-7917,
[Article]

Abstract

Body mass, volume and surface area are important for many aspects of the physiology and performance of species. Whereas body mass scaling received a lot of attention in the literature, surface areas of animals have not been measured explicitly in this context. We quantified surface area - volume (SA/V) ratios for the first time using 3D surface models based on a structured light scanning method for 126 species of pollinating insects from four orders (Diptera, Hymenoptera, Lepidoptera and Coleoptera). Water loss of 67 species was measured gravimetrically at very dry conditions for two hours at 15° and 30°C to demonstrate the applicability of the new 3D surface measurements and relevance for predicting the performance of insects. Quantified SA/V ratios significantly explained the variation in water loss across species, both directly or after accounting for isometric scaling (residuals of the SA/V ∼ mass(2/3) relationship). Small insects with a proportionally larger surface area had the highest water loss rates. Surface scans of insects to quantify allometric SA/V ratios thus provide a promising method to predict physiological responses, improving the potential of body mass isometry alone that assume geometric similarity. This article is protected by copyright. All rights reserved.

Item Type: Article
Erschienen: 2017
Creators: Kühsel, Sara and Brückner, Adrian and Schmelzle, Sebastian and Heethoff, Michael and Blüthgen, Nico
Title: Surface area - volume ratios in insects.
Language: English
Abstract:

Body mass, volume and surface area are important for many aspects of the physiology and performance of species. Whereas body mass scaling received a lot of attention in the literature, surface areas of animals have not been measured explicitly in this context. We quantified surface area - volume (SA/V) ratios for the first time using 3D surface models based on a structured light scanning method for 126 species of pollinating insects from four orders (Diptera, Hymenoptera, Lepidoptera and Coleoptera). Water loss of 67 species was measured gravimetrically at very dry conditions for two hours at 15° and 30°C to demonstrate the applicability of the new 3D surface measurements and relevance for predicting the performance of insects. Quantified SA/V ratios significantly explained the variation in water loss across species, both directly or after accounting for isometric scaling (residuals of the SA/V ∼ mass(2/3) relationship). Small insects with a proportionally larger surface area had the highest water loss rates. Surface scans of insects to quantify allometric SA/V ratios thus provide a promising method to predict physiological responses, improving the potential of body mass isometry alone that assume geometric similarity. This article is protected by copyright. All rights reserved.

Journal or Publication Title: Insect science
Volume: 24
Number: 5
Divisions: 10 Department of Biology
10 Department of Biology > Synthetic Ecological Networks
Date Deposited: 31 May 2016 06:51
Identification Number: doi:10.1111/1744-7917.12362
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