Preferirana tjelesna temperatura i gubitak vode isparavanjem kod zidnog macaklina (Tarentola mauritanica) i mrkog ljuskavog guštera (Algyroides nigropunctatus) u laboratorijskim uvjetima

master's thesis

• Title (english): Preferred body temperature and the evaporative water loss of the wall gecko (Tarentola mauritanica) and the Dalmatian Algyroides (Algyroides nigropunctatus) in laboratory conditions
• Author: Martina Ferenčić
• Mentor: Duje Lisičić (mentor)
• Committee member: Duje Lisičić (predsjednik povjerenstva)
• Committee member: Mirela Sertić Perić (član povjerenstva)
• Committee member: Draginja Mrvoš-Sermek (član povjerenstva)
• Committee member: Biserka Prugovečki (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2023-07-17, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Termoregulacija i gubitak vode isparavanjem važni su fiziološki procesi za sve vrste gmazova jer
su izravno povezani s njihovim preživljavanjem. Cilj ovoga rada bio je u laboratorijskim uvjetima
utvrditi postoje li razlike u odabiru preferiranih tjelesnih temperatura i stopi gubitka vode
isparavanjem kod odraslih, muških jedinki dviju mediteranskih vrsta guštera koji zauzimaju
različite ekološke niše. Vrsta Algyroides nigropunctatus rasprostranjena je na zasjenjenim i
vlažnim staništima, a vrsta Tarentola mauritanica obitava na suhim, sunčanim staništima. Rezultati
istraživanja ukazali su na veće stope gubitka vode isparavanjem i relativno visoke preferirane
tjelesne temperature malog raspona u vrste A. nigropunctatus. S druge strane, kod vrste T.
mauritanica zabilježene su niže stope gubitka vode isparavanjem i niže preferirane tjelesne
temperature većeg raspona vrijednosti. Preferirana tjelesna temperatura i gubitak vode
isparavanjem vezani su uz filogeniju, ali i fiziologiju vrste te su ovisni o tipu staništa i mogu biti
određeni posebnim prilagodbama kao što je drugačija propusnost kože. Bez obzira na relativno
dobro poznavanje temperaturnih učinaka na ranjivost vrsta, učinak gubitka vode nije dovoljno
istražen. Dosadašnji rezultati istraživanja istaknuli su potrebu za daljnjim istraživanjem jer obje
vrste ukazuju na specifične mehanizme u svrhu regulacije gubitka vode i odabira preferirane
temperature koje nisu sasvim razjašnjene.

Abstract (english)

Thermoregulation and evaporative water loss are important physiological processes for all reptile
species as they are directly related to their survival. The aim of this work was to determine in
laboratory conditions whether there are differences in the selection of preffered body temperatures
and the rate of evaporation water loss in adult, male individuals of two Mediterranean species of
lizards that occupy different ecological niches. The species Algyroides nigropunctatus is
distributed in shaded and relatively humid habitats, and the species Tarentola mauritanica lives in
dry, sunny habitats. The results of the study indicated higher rates of evaporation water loss and
relatively high preferred body temperatures with low variations in the species A. nigropunctatus.
On the other hand, in the species T. mauritanica, were recorded lower rates of evaporation water
loss and lower preferred body temperatures of a larger range of values. Preferred body temperature
and evaporative water loss are related to phylogeny, but also physiology and are dependent on the
type of habitat and may be determined by special adaptations such as different skin permeability.
Despite the relatively good cognition of temperature effects on species vulnerability, the effect of
water loss has not been sufficiently investigated. The research results so far have highlighted the
need for further research because both species indicate specific mechanisms for the purpose of
regulating water loss and choosing a preferred temperature that are not fully clarified.

• Keywords: termalni gradijent; isušivanje; mehanizmi prilagodbe; distribucija guštera
• Keywords (english): thermal gradient; dehydration; adjustment mechanisms; distribution of lizards
• Language: croatian
• URN:NBN: urn:nbn:hr:217:195942
• Study programme: Title: Integrated undergraduate and graduate university study of Biology and Chemistry Education; specializations in: Integrated undergraduate and graduate university study of Biology and Chemistry Education; Course: Integrated undergraduate and graduate university study of Biology and Chemistry Education; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar/magistra edukacije biologije i kemije (magistar/magistra edukacije biologije i kemije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2025-07-17
• Created on: 2023-07-26 08:18:36