Iberolacerta horvathi in Podarcis muralis v Sloveniji
Urban Dajčman (Author), Peter Trontelj (Reviewer), Rok Kostanjšek (Mentor), Rok Kostanjšek (Thesis defence commission member), Anamarija Žagar (Thesis defence commission member), Peter Trontelj (Thesis defence commission member), Ivan Kos (Thesis defence commission member), Anamarija Žagar (Co-mentor)

Abstract

Namen naloge je bil prepoznati, kateri znotrajcelični krvni paraziti so prisotni pri dveh slovenskih vrstah kuščaric, pozidni (Podarcis muralis) in velebitski (Iberolacerta horvathi) kuščarici. Identiteto parazitov smo potrdili z molekularno analizo gena za 18S rRNA. Opaženi osebki pripadajo rodu Karyolysus, ki je znan parazit plazilcev in kuščaric specifično. Kayryolysus je rod enoceličnih evakriontskih parazitov iz skupine haemogregarin. Nadaljnja analiza se je osredotočala na prevalenco in intenziteto okužbe in primerjavo le-teh med vrstama, spoloma, velikostjo, lokacijami, nadmorskimi višinami in sintopičnostjo/alotopičnostjo populacij obeh gostiteljskih vrst kuščaric. Potrdili smo, da so velebitske kuščarice pogosteje in intenzivneje okužene. Prav tako smo prepoznali pogostejšo okuženost pri večjih osebkih, vendar le na dveh lokacijah. V nasprotju s pričakovanji smo v dveh lokacijah zaznali nižjo intenziteto okužbe pri večjih osebkih. Intenziteta okužbe je bila večja pri samcih. Razlik med populacijami, ko kuščarice živijo v sintopiji (prisotni obe vrsti) ali v alotopiji (prisotna le ena vrsta), nismo uspeli potrditi. Prav tako nismo uspeli potrditi razlik med populacijami, ki poseljujejo različne nadmorske višine. Opaženi rezultati kažejo, da v kompetitivnem odnosu med kuščaricama obstaja asimetrična okužba s paraziti. Velebitska kuščarica je pogosteje in intenzivneje okužena, kar bi lahko imelo vpliv na medvrstne odnose, kot je kompeticija in sobivanje proučevanih vrst kuščaric.

Keywords

kuščarice;paraziti;prevalenca;intenziteta;Iberolacerta horvathi;Podarcis muralis;medvrstni odnosi;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [U. Dajčman]
UDC: 598.161.212(043.2)
COBISS: 33497091 Link will open in a new window
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Downloads: 105
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Other data

Secondary language: English
Secondary title: Impact of Haemogregarines on interspecific interactions of lacertid lizards in the case of two competing species
Secondary abstract: Our thesis aimed to recognize which intraerythrocytic blood parasites infect two species of Slovene lacertids, common wall lizard (Podarcis muralis), and Horvath's rock lizard (Iberolacerta horvathi). We confirmed the identity of the parasites using molecular approaches by sequencing a part of the 18S rRNA gene. All observed parasite individuals belong to the genus Karyolysus, known by parasitizing reptiles and lacertids specifically. Karyolysus is a genus of protozoan hamogreagrines. Further work included the analysis of prevalence and intensity of parasitic infection in both species of lizards. We compared prevalence and intensity between species, sexes, size, locations, altitudes, and whether the populations live in syntopy or alotopy. We confirmed that the prevalence and intensity of blood parasites were significantly higher in Horvath's rock lizards. We also observed a higher prevalence of parasites in larger individuals, but this was found in only two locations. Contrary to expectations, we found in two localities that the intensity of parasites was lower in larger animals. The intensity was also higher in males. We did not confirm any differences in prevalence or intensity between syntopic and alotopic populations. We also did not observe any differences related to altitude. Our results confirm an asymmetric parasitic prevalence and intensity between the two competing lizard species that may have a potential influence on their competitive relationship and coexistence.
Secondary keywords: lacertids;parasites;prevalence;intensity;Iberolacerta horvathi;Podarcis muralis;interspecies interactions;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. Ljubljana, Biotehniška fak.
Pages: IX, 67, [5] f.
ID: 12053342