prikaz prve stranice dokumenta Intra- and interspecific variability of digestive tract morphology in Podarcis siculus and Podarcis melisellensis lizards
Embargo period 2025-09-19
master's thesis
Intra- and interspecific variability of digestive tract morphology in Podarcis siculus and Podarcis melisellensis lizards
Zagreb: University of Zagreb, Faculty of Science, 2023. urn:nbn:hr:217:845032
Jančula, Anja
University of Zagreb
Faculty of Science
Department of Biology

Institutional repository: Repository of the Faculty of Science

Cite this document

Jančula, A. (2023). Intra- and interspecific variability of digestive tract morphology in Podarcis siculus and Podarcis melisellensis lizards (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:845032

Jančula, Anja. "Intra- and interspecific variability of digestive tract morphology in Podarcis siculus and Podarcis melisellensis lizards." Master's thesis, University of Zagreb, Faculty of Science, 2023. https://urn.nsk.hr/urn:nbn:hr:217:845032

Jančula, Anja. "Intra- and interspecific variability of digestive tract morphology in Podarcis siculus and Podarcis melisellensis lizards." Master's thesis, University of Zagreb, Faculty of Science, 2023. https://urn.nsk.hr/urn:nbn:hr:217:845032

Jančula, A. (2023). 'Intra- and interspecific variability of digestive tract morphology in Podarcis siculus and Podarcis melisellensis lizards', Master's thesis, University of Zagreb, Faculty of Science, accessed 22 November 2024, https://urn.nsk.hr/urn:nbn:hr:217:845032

Jančula A. Intra- and interspecific variability of digestive tract morphology in Podarcis siculus and Podarcis melisellensis lizards [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2023 [cited 2024 November 22] Available at: https://urn.nsk.hr/urn:nbn:hr:217:845032

A. Jančula, "Intra- and interspecific variability of digestive tract morphology in Podarcis siculus and Podarcis melisellensis lizards", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:217:845032

Metadata
TitleIntra- and interspecific variability of digestive tract morphology in Podarcis siculus and Podarcis melisellensis lizards
Title (croatian)Intra- i interspecijska varijabilnost morfologije probavila kod gušterica Podarcis siculus i Podarcis melisellensis
AuthorAnja Jančula
MentorAnamaria Štambuk (mentor)
Committee memberAnamaria Štambuk (predsjednik povjerenstva)
Committee memberDuje Lisičić (član povjerenstva)
Committee memberDražen Balen (član povjerenstva)
Committee memberNeven Bočić (član povjerenstva)
Committee memberGordana Medunić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Biology)
Zagreb
Defense date and country2023-09-19, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
Upon translocation of five pairs of Podarcis siculus from islet Pod Kopište to islet Pod Mrčaru in 1971 newly established Pod Mrčaru population underwent significant ecological in the course of only 35 years. The shift towards omnivory resulted in morphological changes, the appearance of cecal valves, and a prolonged digestive tract. This thesis studies occurrence of cecal valves in insular and mainland populations of Podarcis siculus and Podarcis melisellensis. Both species have high within-population variability of hind gut morphology. However, the among-population differences in frequencies of specific hind gut morphotypes was much more prominent in P. siculus. Cecal valves were almost specific for P. siculus, which also exhibited longer digestive tract. The occurrence of cecal valves was not particularly more prevalent in insular population, was not sex dependent, was not correlated with the presence of nematodes in the hind gut, and did not exhibit strong heredity. Overall, my result point to ecologically driven appearance of cecal valves in P. siculus and, contrary to previous opinions, its wide spread occurrence across different populations and habitats
Abstract (croatian)
Nakon translokacije pet parova Podarcis siculus guštera sa otočića Pod Kopište na otočić Pod Mrčaru 1971. godine, novouspostavljena populacija na otočiću Pod Mrčaru pokazala je značajne ekološke promjene nakon svega 35 godina. Prijelaz prema omnivornoj prehrani rezultirao je u morfološkim promjenama, pojavi cekalnih valvi i produljenom probavnom traktu. Ovaj diplomski rad proučava pojavu cekalnih valvi u otočnim i kopnenim populacijama guštera Podarcis siculus i Podarcis melisellensis. Obje vrste pokazuju visoku unutarpopulacijsku varijabilnost morfologije cekuma. Međutim, razlike između populacija u frekvenciji specifičnih morfotipova cekuma bile su izraženije kod vrste P. siculus. Cekalni valvi su bili gotovo specifični za vrstu P. siculus, koja također ima i duži probavni trakt. Pojava cekalnih valvi nije bila izraženija kod otočnih populacija, nije ovisila o spolu, nije bila povezana s prisutnošću oblića u cekumu i nije pokazala visoku nasljednost. Dakle, moji rezultati ukazuju na ekološki uvjetovanu pojavu cekalnih valvi kod vrste P. siculus i, suprotno prethodnim mišljenjima, njihovu široku rasprostranjenost među različitim populacijama i staništima.
Keywords
Keywords (croatian)
Languageenglish
URN:NBNurn:nbn:hr:217:845032
Study programmeTitle: 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 resourceText
File originBorn digital
Access conditionsEmbargoed access
Embargo expiration date: 2025-09-19
Terms of useLicence In copyright icon
Created on2023-11-15 13:37:55