Istraživačko ponašanje i neofobija juvenilnih jedinki iz pokusa križanja populacija primorske gušterice (Podarcis siculus)

master's thesis

• Title (english): Exploratory behaviour and neophobia of juvenile individuals from the crossing experiment of Italian wall lizard (Podarcis siculus) populations
• Author: Antonija Borjana Agapito
• Mentor: Duje Lisičić (mentor)
• Mentor: Marko Glogoški (komentor)
• Committee member: Duje Lisičić (predsjednik povjerenstva)
• Committee member: Anamaria Štambuk (član povjerenstva)
• Committee member: Davor Zanella (član povjerenstva)
• Committee member: Zoran Marčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2022-09-21, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Translokacijskim pokusom 1971. pet parova primorske gušterice (Podarcis siculus) preneseno je
s otočića Pod Kopište na otočić Pod Mrčaru. 36 godina kasnije, ustanovljeno je da je autohtona
vrsta krške gušterice Podarcis melisellensis na otočiću Pod Mrčaru u potpunosti istisnuta
kompeticijom od strane unesene P. siculus. Istraživanja ishodišne i novonastale populacije P.
siculus na otočićima Pod Kopište i Pod Mrčaru otkrila su morfološke, fiziološke i bihevioralne
razlike između dviju populacija. Prethodna testiranja roditeljske generacije utvrdila su da su odrasle
jedinke s otočića pod Kopište agresivnije. Cilj ovog diplomskog rada bio je utvrditi postoje li
razlike u istraživačkom ponašanju, aktivnosti i neofobiji između juvenilnih jedinki F1 generacije s
obzirom na porijeklo njihovih roditelja. Sve jedinke sudjelovale su u tri testa otvorenog polja: test
habituacije, test aktivnosti i test neofobije prema novom objektu. Test habituacije ispituje
istraživačko ponašanje jedinke u nepoznatom okolišu. Test aktivnosti prati aktivnost jedinki u
poznatom okolišu. Testom neofobije mjerene su vrijednosti straha prema novom, nepoznatom
objektu. Prema dobivenim rezultatima, čiste linije juvenilnih jedinki ne razlikuju se međusobno u
ponašanju. Križanci su manje skloni istraživačkom ponašanju i više neofobični. Potrebna su daljnja
istraživanja ponašanja juvenilnih i odraslih jedinki.

Abstract (english)

In a translocation experiment in 1971, five pairs of Italian wall lizards (Podarcis siculus) were
transferred from the islet of Pod Kopište to the islet of Pod Mrčaru. 36 years later, it was found that
the native species of Dalmatian wall lizard Podarcis melisellensis on the islet of Pod Mrčaru was
completely replaced through competition of the introduced P. siculus. Studies of the original and
newly formed populations of P. siculus on the islets Pod Kopište and Pod Mrčaru revealed
morphological, physiological and behavioral differences between the two populations. Previous
studies of parental generation have shown higher aggressivity of adults from the islet Pod Kopište.
The aim of this thesis was to determine whether there are differences in exploratory behavior,
activity and neophobia between juvenile individuals of the F1 generation. Juvenile individuals are
divided into four groups according to the origin of their parents. All individuals participated in
three open field tests: habituation test, activity test and neophobia test towards a novel object. The
habituation test examines the exploratory behavior of an individual in an unfamiliar environment.
The activity test monitors the activity of individuals in a known environment. The neophobia test
measured fear values towards a novel, unknown object. According to the obtained results, pure
lines of juvenile individuals do not differ from each other in behavior. Hybrids are less prone to
exploratory behavior and more neophobic. Further research on the behavior of juveniles and adults
is needed.

• Keywords: ponašanje životinja; test otvorenog polja; translokacijski pokus; utjecaj odrastanja; utjecaj okoline
• Keywords (english): animal behavior; open field test; translocation experiment; influence of maturation; influence of environment
• Language: croatian
• URN:NBN: urn:nbn:hr:217:538622
• 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; Embargo expiration date: 2024-09-21
• Created on: 2022-10-26 11:21:02