| Title: | Ali asimetrija dolžine rogljev gamsa (rupicapra rupicapra l.) odraža kvaliteto in starost živali |
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| Authors: | ID Hafner, Miran (Author) |
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| Files: |  PDF - Presentation file, download (726,10 KB)
MD5: C57252F2DE07CAC0DE67A270388B3996
PID: 20.500.12556/dirros/58651f50-bac1-4632-9405-6d5c11e42a63
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| Language: | Slovenian |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  SciVie - Slovenian Forestry Institute
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| Abstract: | Nihajočo asimetrijo (fluctuating asymmetry-FA) dolžine rogljev gamsa (Rupicapra rupicapra) smo proučevali v vzorcu 718 odstreljenih živali obeh spolov (425 samcev, 293 samic) v obdobju od 1985-2003 v populaciji gamsov v vzhodnih Karavankah v SZ delu Slovenije. Dolžina rogljev odraža FA tako pri samcih kot pri samicah. Absolutna FA dolžine rogljev s starostjo narašča pri obeh spolih. Med mladimi živalmi z večjo FA izstopajo dveletne. V absolutni FAv okviru posameznih starostnih razredov nismo odkrili razlik med spoloma. Odvisnost med FA in velikostjo znaka smo odkrili pri samicah, in sicer z velikostjo znaka asimetrija narašča. Nismo odkrili odvisnosti med absolutno FAin telesno maso. Nismo odkrili razlik v relativni FA pri samicah med posameznimi starostnimi razredi. Če domnevamo, da le kvalitetni osebki in osebki, ki niso pod stresom, lahko proizvedejo bolj simetrične roglje, ugotavljamo, da rezultati domneve, da FA v sekundarnih spolnih znakih odraža kvaliteto nosilca, ne potrjujejo. Roglji večjih osebkov niso bolj simetrični. Ocenjujemo, da je asimetrija dolžine rogljev lahko znak starosti njihovega nosilca, ni pa znak njegove kvalitete. Simetrija dolžine rogljev pri gamsu verjetno nima velikega pomena v medsebojnih interakcijah.We have researched the fluctuating asymmetry (FA) in the horn length of chamois (Rupicapra rupicapra L.) on a sample of 718 animals of both sexes (425males, 293 females) that were shot in chamois population in the eastern Karavanke mountain ridge in northwestern part of Slovenia in the period 1985 -2003. Horn length reflects FA in male as well as in female population. Absolute FA in horn length increases with age in both sexes. Among young animals, twoyear olds stand out as the ones with higher FA. Within single age classes we have not detected any differences in absolute FA in-between sexes. We have, however, detected dependence between FA and the size of horns among females. Fluctuating asymmetry increases with an increase in horn length. No dependence has been found between absolute FA and carcass mass. We have not detected any differences in relative FA in females within single age classes. If we presume, that only individuals of good quality and individuals which arenot under stress conditions are able to develop more symmetrical horns, we can ascertain that our results do not confirm the presumption that FA in secondary sexual characteristics reflects the quality of the individual. Hornsof bigger individuals are not more symmetrical. We therefore assume that the asymmetry in horn length could be a characteristic feature of the age of an individual but could not be a characteristic feature of the quality of the individual. The symmetry in horn length in chamois probably does not have highsignificance in contacts between animals. |
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| Keywords: | Rupicapra rupicapra, gams, roglji, nihajoča simetrija, chamois, horns, fluctuating asymmerty |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2004 |
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| Number of pages: | str. 5-29 |
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| Numbering: | Vol. 73 |
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| PID: | 20.500.12556/DiRROS-7595  |
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| UDC: | 630*149.6 Rupricapra rupricapra L.:131.3(045) |
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| ISSN on article: | 0351-3114 |
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| URN: | URN:NBN:SI:doc-6T6VOE2K |
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| COBISS.SI-ID: | 1267366 |
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| Publication date in DiRROS: | 12.07.2017 |
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| Views: | 4678 |
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| Downloads: | 1980 |
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