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Title:Prostorska ogroženost populacij divjega petelina (Tetrao urogallus L.) v Sloveniji leta 1998
Authors:ID Čas, Miran (Author)
Files:.pdf PDF - Presentation file, download (3,01 MB)
MD5: D03E1D9D61FA3226A38A580E31D4D9C3
PID: 20.500.12556/dirros/bed28bc9-ed3a-44b0-af45-871e3f751fdc
 
Language:Slovenian
Typology:1.01 - Original Scientific Article
Organization:Logo SciVie - Slovenian Forestry Institute
Abstract:Leta 1998 je v ponovljenem vseslovenskem popisu aktivnosti rastišč divjega petelina (Tetrao urogallus L.) sodelovalo 473 lovcev in gozdarjev v 1.234 opazovanjih. Od skupno evidentiranih 559 rastišč je aktivnih le še 273 (49 %). Od 495 rastišč (88,6 %) v alpskem prostoru je bilo aktivnih 51 %, od ostalih 64 rastišč v dinarskem prostoru je aktivnih 33 %. Aktivne populacije so prisotne na 74 % površine evidentiranega območja razširjenosti. 80,3 % območja razširjenosti je ohranjenega v alpskem (22 ptic/km2) in 19,7 % v dinarskem prostoru (0,07 ptic/km2) na 4.839 km2 ali 22 % površine Slovenije. Delež aktivnih rastišč v gozdovih na površinah po 200 m višinskih pasovih narašča linearno, od samo še 16 % aktivnih rastišč nad 601 do 800 m nadmorske višine do 70 % nad 1.401 do 1.600 m. Pod 1.000 m je le 11,2 % vseh aktivnih rastišč. Optimum populacijske gostote je nad 1.201 do 1.600 m na 66 % vseh aktivnih rastišč z 0,59 ptic in 0,18 aktivnega rastišča/km2. Po letu 1986 je število aktivnih rastišč upadlo za 199 (42 %), od tega za 41 % v alpskem in 53% v dinarskem prostoru. Število opuščenih rastišč narašča linearno s padanjem po 200 metrskih višinskih pasovih, od 22,9 % nad 1.401 do 1.600 m do 78,9 % nad 601 do 800 m. Najbolj ogrožena so robna območja razširjenosti v predalpskem ter v dinarskem prostoru, najbolj ohranjena so v gorskih gozdovih smreke in bukve.
Keywords:divji petelin, Tetrao urogallus (L.), areal razširjenosti, habitat, gozd, gozdnata krajina, spreminjanje gozda
Publication status:Published
Publication version:Version of Record
Year of publishing:1999
Number of pages:str. 5-52
Numbering:Vol. 60
PID:20.500.12556/DiRROS-7429 New window
UDC:630*1
ISSN on article:0351-3114
URN:URN:NBN:SI:doc-5NZA01Z8
COBISS.SI-ID:589734 New window
Publication date in DiRROS:12.07.2017
Views:5203
Downloads:2050
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Record is a part of a journal

Title:Zbornik gozdarstva in lesarstva. forest and wood science & technology
Shortened title:Zb. gozd. lesar.
Publisher:Gozdarski inštitut Slovenije, Biotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vire, Biotehniška fakulteta, Oddelek za lesarstvo
ISSN:0351-3114
COBISS.SI-ID:6206978 New window

Secondary language

Language:Slovenian
Title:Spatial endangerment of capercaillie (Tetrao urogallus L.) populations in Slovenia in 1998
Abstract:In 1998, 473 hunters and foresters participated in a repeated pan-Slovenian survey of capercaillie (Tetrao urogallus L.) leks activities in 1.234 observations. Out of the total of 559 surveyed leks only 273 (49%) are still active. Out of 495 leks (88.6%) in the Alpine region 51% were established as active and of the other 64 leks in the Dinaric region 33%. Active populations are present in 74% of the surveyed distribution area. 83% of the distribution area have been preserved in the Alpine (0.22 birds/km2) and 19.7% in the Dinaric region (0.07 birds/km2) in 4 839 km2 or 22% of Slovenian area. The share of active leks in forests in 200 m- altitude zone areas increases linearly, from only 16% of active leks from 601 to 800 m above sea level to 70% from 1.401 to 1.600 m (timber line is at 1.650 m). Below 1.000 m there areonly 11.2% of all active leks. The optimum of population density was established from 1.201 to 1.600 m in 66% of all active leks, with 0.59 birds and 0.18 of active lek/km2. After 1986 the number of active leks has fallen by199 (42%), 41% of this in the Alpine and 53% in the Dinaric region. The number of deserted forest leks grows linearly with decreasing in 200 m - altitudinal zones, from 22,9% from 1.400 to 1.600 m to 78,9% from 601 to 800 m. Deserted or most endangered are the margin distribution regions in the sub-Alpine region and in the entire Dinaric region. The greatest number of sub-populations has been preserved in remote high-altitude Norway spruce and beech forests.


Collection

This document is a part of these collections:
  1. Acta Silvae et Ligni

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