Współpraca naukowa Katedry Entomologii Leśnej i Instytutu Badawczego Leśnictwa w Krakowie w zakresie badań nad owadami kambio- i ksylofagicznymi w górach

Wojciech Grodzki , Starzyk Jerzy

Abstract

In 1998–2002 the investigations, concerning the protection against Ips typographus (L.) in the adjacent zones of managed and protected forests in the region of the Gorce National Park, were undertaken. It was found, that the insect determining the spruce mortality was I. typographus, accompanied by the other species (tab. 1 and 2). Its elevated occurrence level in the Gorce Mts. caused the lasting threat to the Norway spruce stands in both protected and managed forests. In the autumn 2002 the damage caused by the foehn wind occurred in the Tatra National Park. In 2003–2005 the investigations on the level and dynamics of I. typographus and accompanying bark beetle species’ populations were conducted in the Norway spruce stands that survived the wind disaster. The mortality of standing spruces due to the bark beetle infestations, very low in the first vegetation season after wind damage, increased in 2004, when I. typographus outbreak, developing during the next few years over large areas, began (fig. 1). At the proximity of the fallen and broken trees left in the forest, the bark beetles started to attack the standing trees in 2004 (fig. 2), and the location of the stands the most attacked was spatially related with the distribution of the stands the most damaged in 2002. In 2004–2006 the problem of leaving in the stands the dead and dying trees, which could serve as the breeding material for many groups of insects living on Norway spruce, Silver fir and European beech. The numbers of beetles, captured to several type traps in the fir and spruce stands, were similar and much higher than those from beech stands (fig. 3). The beetles captured exclusively in spruce (51 taxa) and in fir (35 taxa) stands were the most numerous group. The beetles related with coniferous stands belonged to 28 taxa, while those related with beech – to 18 taxa (fig. 4). The amount of the old and dying trees left in the forest should be depending on the stand characteristics, local conditions and the quality of wood, i.e. its usefulness as breeding material for the insects. The relationships between the characteristics of stands and the occurrence of I. typographus, known from the literature, were the inspiration for the research aimed on the definition of criteria for the estimation of its outbreak potential, useful for the risk assessment in Norway spruce stands. Preliminary results of the research in Beskid Żywiecki, started in 2010, indicated the existence of the dependence of some traits of I. typographus population on the selected elements of stand characteristics (tab. 3), however those relations need to be verified by further analyses
Author Wojciech Grodzki (FRI)
Wojciech Grodzki,,
- Forest Research Institute, Department of Forestry Mountain Regions
, Starzyk Jerzy (FoF / DoFPFEaC)
Starzyk Jerzy,,
- Department of Forest Protection, Forest Entomology and Climatology
Other language title versionsScientific cooperation of the Chair of Forest Entomology and the Forest Research Institute in Kraków in the research on cambio- and xylophagous insects in the mountains
Pages287-301
Publication size in sheets0.7
Book Ząbecki Wojciech (eds.): Rola i udział owadów w funkcjonowaniu ekosystemów leśnych, 2013, Wydawnictwo Uniwersytetu Rolniczego, ISBN 978-83-60633-92-2, 349 p.
Keywords in Polishowady kambiofagiczne, owady ksylofagiczne, lasy górskie, Ips typographus
Keywords in Englishbark beetles, wood-boring insects, montane forests, Ips typographus
Abstract in PolishW pracy przedstawiono przegląd prowadzonych w latach 1998–2012 przez obie instytucje wspólnych badań nad owadami kambio- i ksylofagicznymi w lasach górskich. Dotyczyły one występowania Ips typographus (L.) w lasach zagospodarowanych i chronionych w Gorcach, następstw szkód od wiatru w kontekście zagrożenia drzewostanów świerkowych przez korniki w Tatrach, pozostawiania starych drzew do naturalnej śmierci w aspekcie zagrożenia drzewostanów i ochrony bioróżnorodności oraz określenia wybranych cech przydatnych do oceny potencjału gradacyjnego I. typographus w Beskidzie Żywieckim. Zaprezentowano najważniejsze rezultaty badań oraz wynikające z nich wnioski naukowe i zalecenia praktyczne.
Languagepl polski
Score (nominal)4
ScoreMinisterial score = 5.0, 27-07-2017, BookChapterNotSeriesNotMainLanguages
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