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Primerjava aktivnosti navadnega polha na vhodu polšin v Dinaridih med leti s slabim in boljšim obrodom bukve
ID Podpečan, Jaka (Avtor), ID Jerina, Klemen (Mentor) Več o mentorju... Povezava se odpre v novem oknu

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Izvleček
Doslej je bila aktivnost navadnega polha na vhodih v polšine (podzemske jame) v Dinaridih proučevana le enkrat, in še to v letu z zelo malo hrane, ko bukev praktično ni rodila. Raziskavo na istih lokacijah (10 polšinah) smo zato ponovili leta 2022, ko je bil obrod bukve precej boljši. Aktivnost polha na proučevanih polšinah med Ljubljanskim barjem in Krimom smo v obeh letih (torej 2021 in 2022) proučevali s fotopastmi, ki so spremljale izhod iz polšine; v obeh letih je spremljanje potekalo od aprila do novembra. V raziskavi smo potrdili, da ima dostopna količina hrane (oz. jakost obroda bukve) bistven vpliv na aktivnost navadnega polha. V letu 2021 je bil od skupaj 2.860 posnetih dogodkov (na 10 lokacijah) navadni polh prisoten na 252 dogodkih. V letu 2022 je bilo skupno na 10 lokacijah zabeleženih 14.747 dogodkov in navadni polh je bil prisoten na kar 13.325 dogodkih (posnetkih; tj. skoraj 53-krat več kot leta 2021). V letu 2022 smo zaznali veliko aktivnost navadnega polha tudi na območju, kjer listavci predstavljajo le majhen delež v drevesni sestavi, obratno pa v letu 2021, ko aktivnosti ni bilo zaznane na območjih, kjer listavci predstavljajo manj kot 50 % in je bila nekoliko višja le na območju s hrastom. Zaradi visoke aktivnosti navadnega polha v letu 2022 se je povečala tudi aktivnost njegovih plenilcev. Poleg tega so bili v letu 2022 preko celotne noči dokaj enakomerno aktivni na vhodih v polšine, leto prej pa je bila aktivnost bimodalna, z izraženim viškom zvečer in pred jutrom.

Jezik:Slovenski jezik
Ključne besede:Navadni polh, Glis glis, primerjava aktivnosti, slab in boljši obrod bukve, polšine, cirkadiana aktivnost, listopadni gozd
Vrsta gradiva:Diplomsko delo/naloga
Tipologija:2.11 - Diplomsko delo
Organizacija:BF - Biotehniška fakulteta
Kraj izida:Ljubljana
Založnik:[J. Podpečan]
Leto izida:2023
PID:20.500.12556/RUL-144049 Povezava se odpre v novem oknu
UDK:630*14+630*15:630*18(043.2)=163.6
COBISS.SI-ID:139917059 Povezava se odpre v novem oknu
Datum objave v RUL:29.01.2023
Število ogledov:959
Število prenosov:104
Metapodatki:XML DC-XML DC-RDF
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Sekundarni jezik

Jezik:Angleški jezik
Naslov:Comparison of edible dormouse activity at their underground cavern entrances between poor and better mast years of common beech in Dinarides
Izvleček:
So far, the activity of the edible dormouse at the entrances to underground caves in the Dinarides has only been studied once, and that in a year with very little food, when beech crop was very poor. The survey was therefore repeated in 2022 on the same sites (10 locations), when the beech crop was much better. In both years (2021 and 2022), the activity of the edible dormouse in the study areas between Ljubljansko barje and Krim was monitored with photo-traps that monitored the exit from the area; in both years, monitoring took place from April to November. In this study, we confirmed that the amount of food available (or the abundance of beech seed) has a significant influence on the activity of the edible dormouse. In 2021, out of a total 2,860 recorded events (at 10 locations), the edible dormouse was present at 252 events. In 2022, a total of 14,747 events were recorded at 10 sites and the edible dormouse was present at 13,325 events (recordings; almost 53 times more than in 2021). In 2022, we detected high dormouse activity even in areas where deciduous trees make up only a small proportion of the tree composition, and vice versa in 2021, when no activity was detected in areas where deciduous trees make up less than 50% of the tree species composition, and activity was slightly higher only in the area with oak trees. The high activity of the edible dormouse in 2022 has also led to an increase in the activity of its predators. In addition, in 2022, they were fairly uniformly active at the entrances to the underground caves throughout the night, whereas the year before, activity was bimodal, with a pronounced peak in the evening and before dawn.

Ključne besede:Edible dormouse, Glis glis, comparison of activity, poor and better mast years of common beech, underground caverns, cirkadian activity, decidous forest

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