Vokalizacija dinarskog voluhara (Dinaromys bogdanovi Martino, 1922) u različitim uvjetima okoliša u zatočeništvu

master's thesis

• Title (english): Vocalization of Balkan snow vole (Dinaromys bogdanovi Martino,1922) in different captive enviroment conditions
• Author: Matea Kovač
• Mentor: Duje Lisičić (mentor)
• Committee member: Duje Lisičić (predsjednik povjerenstva)
• Committee member: Zrinka Ljubešić (član povjerenstva)
• Committee member: Davor Zanella (član povjerenstva)
• Committee member: Renata Matoničkin Kepčija (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2016-02-19, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Glasnje glodavaca u ultrazvučnom dijelu spektra bitna je komponenta njihovog ponašanja. Istraživanje do sada
neutvrđenog vokalnog repertoara endemičnog glodavca Dinaromys bogdanovi Martino,1922 provedeno je na
11 odraslih jedinki u prostorijama Zoološkog vrta grada Zagreba. Cilj istraživanja bio je detektirati i analizirali
glasanja jedinki te utvrditi njihovu upotrebu i funkciju kroz izlaganje pokusnih životinja određenim uvjetima
okoliša unutar testnih terarija. Glasanja su snimana mikrofonom UltraMic 2000K u programu SeaWave, a
analiza sonograma je provedena u programu BatSound. Direktnim premjeravanjem unutar sonograma te na
temelju poznate literature, utvrđeni su frekvencijski modulirani signali sastavljeni od jedne komponente te
višekomponentni signali koji uključuju frekvencijske skokove. Definirano je 11 tipova signala razdvojenih u
ukupno 28 podtipova. U različitim biološkim kontekstima životinje koriste određenu količinu signala unutar tih
tipova. Ustanovljeno je da prilikom socijalnog kontakta jedinki dolazi do pojave svih tipova u velikoj
abundanciji, dok je prilikom osvajanja prostora ili prilikom susreta s olfaktornim signalima drugih jedinki
količina glasanja smanjena na minimum. Mužjaci vokaliziraju više od ženki unutar svakog postava. Primarno
korištenje vokalizacije prilikom socijalnih kontakata između jedinki iste vrste sugerira da je vokalizacija bitan dio
komunikacije unutar istovrsnih odnosa. Razumijevanje vokalizacije doprinijet će saznanjima iz područja
biologije vrste i ponašanja, a istraživanje prirodnih populacija na terenu uspješnijim.

Abstract (english)

The sounds that rodents make in the ultrasonic part of the spectrum are an important component of their
behavior. Research of the hitherto unknown vocal repertoire of the endemic rodent Dinaromys bogdanovi was
conducted on 11 adult specimens in the enclosures of the Zagreb Zoo. The goal of the research was to detect
and analyse specie`s vocalisation and to determine their usage and function by exposing test animals to certain
environmental conditions within the testing terrariums. The sounds were recorded with an UltraMIc 200K
microphone using the program SeaWave, and sonogram analysis was conducted by the program BatSound. By
using direct measurements obtained within the sonogram and the available literature, it was concluded that
there are single-component signals with frequency modulation and multiple-component signals which involved
frequency steps. Eleven types of signals and their respective subtypes were determined. In various biological
contexts, this animals use certain amounts of signals within the types. It was determined that during social
contact between the specimens all of the types occurred in great abundance, while the amount of sounds
decreased to a minimum during the claiming of territory or scent presentation by other specimens. Males
vocalized more than females within each setting. Primary usage of vocalization during social contacts between
conspecifics suggests that vocalization is an important part of interspecies communication. The understanding
of vocalization will be a contribution to the findings from the areas of biology of species and behaviour, making
research of natural populations in the field more successful.

• Keywords: glodavci; vokalizacija; ultrazvučno glasanje; komunikacija među životinjama
• Keywords (english): Rodents; vocalisation; ultrasound; communication between animals
• Language: croatian
• URN:NBN: urn:nbn:hr:217:816025
• Study programme: Title: Experimental Biology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra eksperimentalne biologije (magistar/magistra eksperimentalne biologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-05-08 09:22:25