Cuticle structure of Carpathian endemic species: Trachelipus trilobatus (Crustacea, Isopoda, Oniscidea) described with the scanning electron microscope
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Published:2022-06-22
Issue:1
Volume:67
Page:49-62
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ISSN:2065-9512
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Container-title:Studia Universitatis Babeş-Bolyai Biologia
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language:
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Short-container-title:Studia UBB Biologia
Author:
Cupșa Diana, ,Costea Traian-Octavian,Cicort-Lucaciu Alfred-Ștefan,Covaciu-Marcov Severus-Daniel,Ferenți Sára, , , ,
Abstract
The cuticle is the interface between an animal and its environment; thus, it has a special importance. In Arthropods, the cuticle is not uniform, having numerous formations, which is also the case of epigeic terrestrial isopods. Our study presents data on cuticle surface morphology, obtained with a scanning electron microscope, of an endemic terrestrial isopod species, Trachelipus trilobatus. Here we present SEM images of some external morphological features of this species, which were previously described only at the light microscope. Although T. trilobatus was frequently encountered in caves, the aspect of its cuticle is characteristic for an epigeic isopod, presenting numerous micro-scales, spines, and tricorn sensilla, which are considered hygroreceptors. This fact proves that originally T. trilobatus is an epigeic species, which secondarily adapted to karst areas with caves. Nevertheless, it regularly leaves the caves and the limestone cracks and emerges on the soil surface. Therefore, T. trilobatus is able to receive information about environmental humidity, especially on the soil surface, which, when unfavorable, causes the species retreat into caves or cracks. Climatic fluctuations from the glacial periods could direct T. trilobatus to this environment and way of life, modifying its morphology, but not its cuticle.
Publisher
Babes-Bolyai University
Subject
Cell Biology,Environmental Science (miscellaneous),Biochemistry, Genetics and Molecular Biology (miscellaneous),Ecology
Reference47 articles.
1. "1. Boitan, V., & Negrea, Ș. (2001). Contribution to the knowledge of the terrestrial cavernicolous fauna from the middle Cerna valley (Banat, Romania). Trav. Mus. Natl. Hist. Nat. Grigore Antipa, 43, 11-22. 2. Morphological traits - desiccation resistance - habitat characteristics: a possible key for distribution in woodlice (Isopoda, Oniscidea);Csonka;ZooKeys,2018 3. 3. Dias, A.T.C., Krab, E.J., Mariën, J., Zimmer, M., Cornelissen, J.H.C., Ellers, J., Wardle, D.A., & Berg, M.P. (2012). Traits underpinning desiccation resistance explain distribution patterns of terrestrial isopods. Oecologia, 172, 3, 667-677. 4. 4. Ferenți, S., & Covaciu-Marcov, S.-D. (2018). Beyond the rule: a mountainous cave species, Mesoniscus graniger (Isopoda, Oniscidea) on a plain of south-western Romania. Oltenia. Studii și Comunicări. Științele Naturii, 34, 1, 89-92. 5. Winter activity of terrestrial isopods from thermal habitats in western Romania;Ferenți;Arch Biol Sci 65,2013
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