Biology, affinity and description of an unusual aquatic new genus and species of Isotomidae (Collembola) from high altitude lakes in Tasmania

A new species of Isotomidae (Collembola) was collected from submerged stones on the edge of nine lakes on Tasmania's Central Highland Plateau. Because it did not comply fully with the characters of any existing genus, a new genus, Chionobora gen. n. is erected for it here. An Antarctic species,...

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Main Authors: Penelope GREENSLADE, Mikhail POTAPOV
Format: Article
Language:English
Published: Institute of Entomology, Biology Centre, Czech Academy of Science 2015-04-01
Series:European Journal of Entomology
Subjects:
Online Access:https://www.eje.cz/artkey/eje-201502-0015_Biology_affinity_and_description_of_an_unusual_aquatic_new_genus_and_species_of_Isotomidae_Collembola_from_h.php
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author Penelope GREENSLADE
Mikhail POTAPOV
author_facet Penelope GREENSLADE
Mikhail POTAPOV
author_sort Penelope GREENSLADE
collection DOAJ
description A new species of Isotomidae (Collembola) was collected from submerged stones on the edge of nine lakes on Tasmania's Central Highland Plateau. Because it did not comply fully with the characters of any existing genus, a new genus, Chionobora gen. n. is erected for it here. An Antarctic species, Desoria klovstadi (Carpenter), has characters which conform with the new genus so is formally transferred to the new genus here. The Antarctic Continent and Tasmania were last in proximity 60 million years b.p. so it is suggested both species are relicts persisting in probable ice-free refugia during glacial cycles. Gut contents of specimens of the new species exclusively contained diatoms in various stages of digestion and the species appears to graze on aquatic macrophytes, a feeding habit not recorded before for Collembola. We note the high numbers of endemic invertebrate taxa of restricted distributions in cold habitats of southern regions compared to warmer regions and stress their conservation values and threats to their populations.
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spelling doaj.art-89b0293575b24ec8a429b40ac1b9a86b2022-12-21T22:51:28ZengInstitute of Entomology, Biology Centre, Czech Academy of ScienceEuropean Journal of Entomology1210-57591802-88292015-04-01112233434310.14411/eje.2015.032eje-201502-0015Biology, affinity and description of an unusual aquatic new genus and species of Isotomidae (Collembola) from high altitude lakes in TasmaniaPenelope GREENSLADE0Mikhail POTAPOV1Department of Environmental Management, School of Science, Information Technology and Engineering, Federation University, Ballarat, Victoria 3353, Australia; e-mail: pgreenslade@federation.edu.auMoscow State Pedagogical University, Department of Zoology and Ecology, Moscow 129164, Kibalchicha 6 B5, Russia; e-mail: mpnk-abroad@yandex.ruA new species of Isotomidae (Collembola) was collected from submerged stones on the edge of nine lakes on Tasmania's Central Highland Plateau. Because it did not comply fully with the characters of any existing genus, a new genus, Chionobora gen. n. is erected for it here. An Antarctic species, Desoria klovstadi (Carpenter), has characters which conform with the new genus so is formally transferred to the new genus here. The Antarctic Continent and Tasmania were last in proximity 60 million years b.p. so it is suggested both species are relicts persisting in probable ice-free refugia during glacial cycles. Gut contents of specimens of the new species exclusively contained diatoms in various stages of digestion and the species appears to graze on aquatic macrophytes, a feeding habit not recorded before for Collembola. We note the high numbers of endemic invertebrate taxa of restricted distributions in cold habitats of southern regions compared to warmer regions and stress their conservation values and threats to their populations.https://www.eje.cz/artkey/eje-201502-0015_Biology_affinity_and_description_of_an_unusual_aquatic_new_genus_and_species_of_Isotomidae_Collembola_from_h.phpcollembolaisotomidaechionobora amilanew genusnew speciesantarcticadiatomsrefugiaadversity selection
spellingShingle Penelope GREENSLADE
Mikhail POTAPOV
Biology, affinity and description of an unusual aquatic new genus and species of Isotomidae (Collembola) from high altitude lakes in Tasmania
European Journal of Entomology
collembola
isotomidae
chionobora amila
new genus
new species
antarctica
diatoms
refugia
adversity selection
title Biology, affinity and description of an unusual aquatic new genus and species of Isotomidae (Collembola) from high altitude lakes in Tasmania
title_full Biology, affinity and description of an unusual aquatic new genus and species of Isotomidae (Collembola) from high altitude lakes in Tasmania
title_fullStr Biology, affinity and description of an unusual aquatic new genus and species of Isotomidae (Collembola) from high altitude lakes in Tasmania
title_full_unstemmed Biology, affinity and description of an unusual aquatic new genus and species of Isotomidae (Collembola) from high altitude lakes in Tasmania
title_short Biology, affinity and description of an unusual aquatic new genus and species of Isotomidae (Collembola) from high altitude lakes in Tasmania
title_sort biology affinity and description of an unusual aquatic new genus and species of isotomidae collembola from high altitude lakes in tasmania
topic collembola
isotomidae
chionobora amila
new genus
new species
antarctica
diatoms
refugia
adversity selection
url https://www.eje.cz/artkey/eje-201502-0015_Biology_affinity_and_description_of_an_unusual_aquatic_new_genus_and_species_of_Isotomidae_Collembola_from_h.php
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AT mikhailpotapov biologyaffinityanddescriptionofanunusualaquaticnewgenusandspeciesofisotomidaecollembolafromhighaltitudelakesintasmania