Naslov
THREE NEW STYLONISCID GENERA (ONISCIDEA, STYLONISCIDAE) FROM DINARIC CAVES AND THEIR PECULIARITIES

Autori
Karaman, Ivo M. ; Bedek, Jana ; Horvatović, Mladen

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstract Book of the 10th International Symposium on Terrestrial Isopod Biology / Hornung, Erzsébet - Budimpešta : Hungarian Biological Society (Magyar Biológiai Társaság), 2017, 31-31

ISBN
978-963-87343-9-6

Skup
10th International Symposium on Terrestrial Isopod Biology

Mjesto i datum
Budimpešta, Mađarska, 27.08.2017. - 30.08.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ubterranean, troglobiont, diversity, phyletic affinity, morphology

Sažetak
The Dinarides (western Balkan Peninsula) are famous as global hotspot of subterranean biodiversity. Regarding terrestrial isopods it refers to the family Trichoniscidae, which is presented with 11 troglobitic genera and about 40 species, endemic for the region. Such huge diversity reflects the great diversity of Balkan Trichoniscidae that counts 35 genera and about 130 species. In the eastern part of the Balkans (Greece and Bulgaria), the closely related family Styloniscidae is present too, with 11 stenoendemic troglobionts which belong to the genus Cordioniscus. The genus also includes 3 troglobiotic and one endogean species from some western parts of the Mediteranean. Up to now the genus Cordioniscus was the only styloniscid representative in the European fauna. The family Styloniscidae (with 90 described species in 14 genera), has mainly Gondwanan distribution with the core in the temperate and subtropical zone of the southern hemisphere. On the northern hemisphere, aside of the genus Cordioniscus, two additional genera are known, all troglobionts: Trogloniscus (with 5 species from southern China) and Thailandoniscus (with one species). Three other genera disjunctly distributed in the southern hemisphere, also have several representatives on the northern hemisphere. As a result of intensified biospeleological researches of Dinarides in last decade, five new stylinoiscid species have been discovered. Undoubtedly of monophyletic origin, these dinaric styloniscids are so heterogeneous that we have to establish three new genera (two monotypic) for them. The great heterogeneity of forms and expressed dissimilarity with other genera of the family testify to long separate history of dinaric styloniscids. They do not show phyletic affinity either toward the genus Cordioniscus, neither toward any of the already known styloniscid genera. Several peculiarities characterize this styloniscid group. The species from a monotypic genus, with a very elongated body, shows a possibility to laterally bend the pereon while walking, as unique trait among Oniscidea. Representatives of two other genera are inhabitants of cave hygropetric, which is accompanied with a specific structure of their mouth parts. A monotipic genus is characterized by exceptionally complex copulatory structures in males. All species possess unusual and attractive tergal ornamentics that we functionally associate with the role of their tergal tubercles.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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