Naslov
A synopsis of Alpioniscus (Illyrionethes) recent research in the Dinaric Karst

Autori
Bedek, Jana ; Gottstein, Sanja ; Taiti, Stefano

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

Izvornik
Abstract Book 2nd Dinaric Symposium on Subterranean Biology / Delić, Teo ; Zagmajster, Maja ; Borko, Špela ; Fišer, Žiga ; Premate, Ester ; Fišer, Cene ; Trontelj, Peter - Postojna : Organizing Commitee, 2nd Dinaric Symposium on Subterranean Biology, 2019, 17-17

ISBN
978-961-290-538-5

Skup
2nd Dinaric Symposium on Subterranean Biology

Mjesto i datum
Postojna, Slovenija, 18.10.2019. - 19.10.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Alpioniscus, Illyrionethes, Dinaric Karst, 16S, COXI, H3

Sažetak
The southern European subterranean genus Alpioniscus consists of two subgenera: Alpioniscus s. s. and Illyrionethes. In the Dinaric Karst 19 nominal troglobiotic species of Illyrionethes have been recorded, seven described in last two years. Molecular analyses using two mtDNA (16S rRNA and COXI) and a nuclear gene (H3) fragments have been performed, together with a detailed taxonomic study on the Dinaric species. Dinaric species grouped into three distinct lineages: strasseri-, heroldi- and magnus-lineage ; which follow a northwest-southeast direction and have overlapping distributions. The strasseri-lineage was thoroughly sampled and highly supported by all phylogenetic methods employed, so a detailed morphometric analysis was performed on the species of this lineage. The analyses were carried out on the male dataset to identify and clarify new differentiating characters, and to distinguish similar species with higher precision. Besides sexually dimorphic characters of male 7th pereopod and 1st and 2nd pleopods, body size and other characters were analysed. Due to observed differences in body size between species and populations, ratios are considered adequate to eliminate the size influence, and were statistically analysed. A high variability in non sexual characters was observed. On the other hand sexually dimorphic characters showed statistically significant differences between species. As a result, novel morphological characters (ratios of length and hump ending point of male pereopod 7th carpus ; length and concavity turning point of male 1st pleopod exopod) are proposed for future species identifications of the strasseri-lineage species.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA