Sistematika skakavaca veslača (Insecta: Orthoptera: Scelimeninae) temeljena na morfološkim svojstvima

master's thesis

• Title (english): Systematics of pygmy rowerhoppers (Insecta: Orthoptera: Scelimeninae) based on morphological characters
• Author: Jan Regul
• Mentor: Damjan Franjević (mentor)
• Committee member: Damjan Franjević (predsjednik povjerenstva)
• Committee member: Jasna Lajtner (član povjerenstva)
• Committee member: Luka Valožić (član povjerenstva)
• Committee member: Karmen Fio Firi (član povjerenstva)
• Committee member: Mladen Maradin (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2022-02-25, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Trnovratke (Tetrigidae) jedna su od najvećih skupina skakavaca, ali su za razliku od ostalih
skupina vezani za vodu. Jedna skupina među njima posebno je usko specijalizirana za život u vodi
i oko nje, a to su skakavci veslači (potporodica Scelimeninae). Njezin jedini tribus Scelimenini
obuhvaća oko 100 vrsta unutar 15 rodova, a radi se o najduljim trnovratkama na svijetu. Do sada
ova potporodica nikad nije bila sistematski organizirana. Cilj ovog diplomskog rada je odrediti
položaj potporodice Scelimeninae, kao i odnose između i unutar rodova skakavaca veslača.
Molekularna filogenija pokazala je da ovoj potporodici pripadaju rodovi Scelimena i
Paragavialidium, ali ne i rod Falconius. Analizom glavnih komponenti (PCA) definirane su tri
skupine – ona roda Scelimena, ona roda Paragavialidium i ona roda Falconius, a rodovi Tefrinda
i tri vrste roda Tegotettix, kao i u ostalim analizama, ostali su nesvrstani. Kladistička je analiza
polučila iste rezultate te pokazala da unutar potporodice Scelimeninae postoje dvije srodne skupine
rodova. Jednoj pripada rod veslača Scelimena i srodni rodovi, a drugoj skupini pripadaju rodovi
neveslača, tj. Gavialidium i srodni rodovi. Rod Falconius se, kao ni u molekularnoj filogeniji, nije
priklonio nijednoj skupini. Beskrilni rod Austrohancockia po prvi je put morfološki
okarakterizirana kao pripadnik potporidice Scelimeninae. Ustanovljeno je da su neke vrste
svrstane u pogrešne rodove te im je potrebna taksonomska revizija.

Abstract (english)

Pygmy grasshoppers (Tetrigidae) are one of the largest grasshoppers' families, but are, unlike other
groups, closely related to water habitats. One group of pygmy grasshoppers is especially connected
to rivers and ponds – the rowerhoppers, subfamily Scelimeninae. This subfamily with its only
tribe, Scelimeni, gathers around 100 species within 15 genera. Those are the longest pygmy
grasshoppers in the world. This subfamily has never been classified by the means of evolutionary
systematics. The aim of this study was to determine the position of the subfamily Scelimeninae
within Tetrigidae, as well as to investigate the relationships of the genera and species within the
subfamily. Molecular phylogeny shows that Scelimena and Paragavialidium belong to this
subfamily, but Falconius does not. Principal Component Analysis (PCA) shows three clusters, i.e.,
Scelimena genus group, Paragavialidium genus group, and Falconius genus group. Three species
of Tegotettix and Tefrinda do not have clear affinity to any of the groups. Cladistic analysis agrees
with previous analyses and shows that within Scelimeninae there are two genus groups, the one
including Scelimena and related genera, as well as Paragavialidium and related genera. Genus
Falconius belongs to its own group, and as in molecular phylogeny, its placement remains unclear.
Apterous Austrohancockia has been characterized as Scelimeninae member for the first time. It
was determined that some genera require taxonomic revision because some species have been
incorrectly placed.

• Keywords: Tetrigidae; Scelimenini; molekularna filogenija; kladistička analiza; Azija
• Keywords (english): Tetrigidae; Scelimenini; molecular phylogeny; cladistic analysis; Asia
• Language: croatian
• URN:NBN: urn:nbn:hr:217:497775
• Study programme: Title: Enviromental Sciences; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra struke znanosti o okolišu (magistar/magistra struke znanosti o okolišu)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2024-02-25
• Created on: 2022-03-24 13:02:49