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Pojavljanje črne žolne (Dryocopus martius) v gozdnati krajini okolice Ljubljane : diplomsko delo - univerzitetni študij = The presence of black woodpecker (Dryocopus martius) in wooded landscape around Ljubljana : graduation thesis - university studiesCajnko, DomenČrna žolna (Dryocopus martius L.) je ptica večjih in sklenjenih gozdov. Za Ljubljano in njeno okolico so takšni gozdovi značilni predvsem v hribovitem predelu, medtem ko je v nižinah gozdov zelo ... malo. Zato se pojavlja vprašanje ali so ti gozdovi primerni za njen obstoj. Popis črnih žoln je potekal spomladi leta 2011. Petdeset popisnih točk je bilo popisanih vsak mesec (marec, april, maj). Prisotnost žolne je bila potrjena z njenim odzivom na posnetek klica črne žolne, ki je bil predvajan na vsaki točki (play-back metoda). Namen naloge je bil ugotoviti kje se žolna pojavlja. Ugotavljal se je tudi vpliv skupne lesne zaloge, lesne zaloge iglavcev in listavcev, razvojne faze gozda in sklepa sestoja na pojavljanje črne žolne. Pri razvojni fazi sta bili obravnavani samo fazi debeljaka in pomlajenca, pri sklepu pa le rahel ter vrzelast sklep sestoja. Raziskovala se je tudi velikost gozdnih površin in njihova oddaljenost od gozdne matice, da so še primerne za prisotnost žolne. Pri popisu je bil zabeležen tudi odziv ostalih vrst ptic na predvajan posnetek črne žolne za kasnejše ugotavljanje ali se vrste izločujejomed seboj. Rezultati so pokazali, da je črna žolna pogosta na posameznih območjih, ponekod pa je zelo redka ali pa sploh ni prisotna. Najpogostejša je v gozdovih okolice Rašice, odsotna pa na ravninskem področju Ljubljanskega polja. V manjših gozdnih površinah ni bila opažena. Vpliva parametrov zgradbe gozda ni bilo možno dokazati, saj so bile razlike med pojavljanji žolne majhne oz. je bilo število zabeleženih ptic premajhno.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [D. Cajnko], 2013Language - slovenianCOBISS.SI-ID - 3661478
Author
Cajnko, Domen
Other authors
Jurc, Maja, 1954-
Topics
črna žolna |
Dryocopus martius L. |
saproksil |
drevesna sestava |
zgradba sestojev |
Ljubljana
Library/institution |
City | Acronym | For loan | Other holdings |
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Slovenian Forestry Institute, Forestry Library, Ljubljana | Ljubljana | GIS |
outside loan 1 cop.
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Cajnko, Domen | |
Jurc, Maja, 1954- | 02491 |
Source: Personal bibliographies
and: SICRIS
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