Makrozoobentos lokvi Dugog otoka

master's thesis

• Title (english): Benthic macroinvertebrates of the ponds on Dugi otok island
• Author: Luka Polović
• Mentor: Marko Miliša (mentor)
• Committee member: Marko Miliša (predsjednik povjerenstva)
• Committee member: Jasna Hrenović (član povjerenstva)
• Committee member: Antun Alegro (član povjerenstva)
• Committee member: Marija Ivković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2019-02-22, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

U proljeće i jesen 2017. godine i ljeto 2018. godine proveo sam istraživanje makrozoobentosa mediteranskih povremenih lokvi na Dugom otoku. Cilj istraživanja bio je odrediti dominantne svojte makrozoobentosa, odrediti uzrasnu strukturu vretenca Sympetrum fonscolombei (Selys, 1840) i usporediti njihove veličine s ekološkim čimbenicima u svakoj od lokacija. Presudni čimbenici u strukturiranju zajednice lokvi su morfometrija i promijenjivi fizikalno-kemijski uvjeti koji se mijenjaju s obzirom na doba godine i vremenske uvjete, te postoji mogućnost presušivanja lokvi. Planktonski račići (Crustacea) bili su najbrojniji u makrozoobentosu, a od kukaca su to bili dvokrilci (Diptera). Najbrojniji grabežljivci u makrozoobentosu bili su vretenca (Odonata). Najbogatiju zajednicu sam utvrdio u Lokvi 1 na Dugopolju, najvjerojatnije radi stabilnosti uvjeta koji su vladali u toj lokvi. Vrsta Sympetrum fonscolombei bila je najbrojnija među vretencima. Mjerenjem širina njihovih glava, svrstao sam ih u 10 veličinskih razreda i izradio sezonsku sliku njihove uzrasne strukture. Sezonske slike u veličinskim razredima odgovaraju multivoltnom životnom ciklusu vretenaca roda Sympetrum.

Abstract (english)

The aim of the study was to determine the dominant macroinvertebrate taxa, to determine the age structure of the species Sympetrum fonscolombei (Selys, 1840), and to compare their size with the ecological factors at each site. In the spring and autumn of 2017 and summer 2018, I conducted a study of benthic macroinvertebrates of Mediterranean temporary ponds on Dugi otok Island. The most important factors in the community's structure are morphometry and physio-chemical conditions of the pond that vary seasonally including a possibility of drying. Plankton crustaceans (Crustacea) were the most abundant taxon among the macroinvertebrates, followed by flies (Diptera). The most abundant predators were the dragonflies and damselflies (Odonata). The richest benthic macroinvertebrate fauna was found in the pond marked as Lokva 1 at Dugopolje, probably because of the stability of environmental conditions. Sympetrum fonscolombei is the most common among dragonflies. By measuring their head capsule’s width, I ranked them in 10 size classes and made an analysis of their age structure which corresponds to the multivoltine life cycle of Sympetrum dragonflies.

• Keywords: makrozoobentos; krš; vretenca; Sympetrum; mediteranske povremene lokve; Dugi otok; uzrasna struktura
• Keywords (english): benthic macroinvertebrates; karst; dragonflies; Sympetrum; Mediterranean temporary ponds; Dugi otok island; size structure
• Language: croatian
• URN:NBN: urn:nbn:hr:217:949261
• Study programme: Title: Ecology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra ekologije i zaštite prirode (magistar/magistra ekologije i zaštite prirode)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-04-10 09:40:15