Morfometrična variabilnost poletuš (rod Pteromys)

pristop z geometrijsko morfometrijo

Ana Jurjec (Author), Franc Janžekovič (Mentor), Boris Kryštufek (Co-mentor)

Abstract

V magistrski nalogi smo s pomočjo metode geometrijske morfometrije ovrednotili morfometrično variabilnost spodnje čeljustnice in lobanje treh operativnih taksonomskih enot (OTU) rodu Pteromys, in sicer P. momonga, P. volans in P. volans buechneri. Naši cilji so bili preveriti razlike med tremi OTU-ji poletuš in testirati sekundarni spolni dimorfizem pri tej skupini veveric. V analizo je bilo vključenih 60 primerkov mandibul, 55 primerkov ventralne lobanje, 56 primerkov lateralne lobanje in 40 primerkov dorzalne lobanje. Na spodnji čeljustnici smo določili 17 oslonilnih točk, na dorzalni strani lobanje 13, na ventralni in lateralni strani lobanje pa 18 oslonilnih točk. Analiza morfološke variabilnosti med spoloma ni pokazala signifikantnih razlik v spolnem dimorfizmu tako v velikosti kot v obliki spodnje čeljustnice in lobanje pri nobenem od OTU-jev. OTU-ji so se statistično razlikovali v obliki, ne pa tudi v velikosti. Največja odstopanja so se pojavila pri OTU-ju P. v. buechneri, v obliki kotnega podaljška spodnje čeljustnice, v obliki bobničnega mehurja in v obliki možganskega dela lobanje.

Keywords

magistrska dela;Pteromys;geometrijska morfometrija;spodnja čeljustnica;lobanja;sekundarni spolni dimorfizem;

Data

Language:	Slovenian
Year of publishing:	2021
Typology:	2.09 - Master's Thesis
Organization:	UM FNM - Faculty of Natural Sciences and Mathematics
Publisher:	[A. Jurjec]
UDC:	591(043.2)
COBISS:	90778627
Views:	232
Downloads:	29
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Morphometric variability of flying squirells (genus pteromys)
Secondary abstract:	In the master 's thesis, we used the method of geometric morphometry to evaluate the morphometric variability of the mandible and skull of three operative taxonomic units (OTUs) of the genus Pteromys, namely P. momonga, P. volans and P. volans buechneri. Our goals were to verify the differences between the three flight OTUs and to test for secondary sexual dimorphism in this group of squirrels. 60 specimens of mandibles, 55 specimens of ventral skull, 56 specimens of lateral skull, and 40 specimens of dorsal skull were included in the analysis. We analyzed the differences between OTUs and the occurrence of secondary sexual dimorphism. We determined 17 support points on the lower jaw, 13 on the dorsal side of the skull, and 18 support points on the ventral and lateral sides of the skull. Analysis of morphological variability between the sexes showed no significant differences in sexual dimorphism in both size and shape of the mandible and skull in any of the OTUs. OTUs differed statistically in shape but not in size. The largest deviations occurred in OTU buechneri, in the form of an angular extension of the lower jaw and tympanic bladder, and the cerebral part of the skull.
Secondary keywords:	master theses;Pteromys;geometric morphometry;mandible;skull;secondary sexual dimorphism;Poletuše;Mandibula;Lobanja;Univerzitetna in visokošolska dela;
Type (COBISS):	Master's thesis/paper
Thesis comment:	Univ. v Mariboru, Fak. za naravoslovje in matematiko, Oddelek za biologijo
Pages:	VIII, 64 f.
ID:	13783400