Template-Type: ReDIF-Article 1.0 Author-Name: E. Kula Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry Brno, Brno, Czech Republic Author-Name: W. Ząbecki Author-Workplace-Name: Faculty of Forestry, Agricultural University, Cracow, Poland Title: Spruce windfalls and cambioxylophagous fauna in an area with the basic and outbreak state of Ips typographus Abstract: In spruce windfalls incurred in the autumn and winter season the synusia of cambioxylophagous fauna was evaluated in the profile of a whole stem and crown branches according to the species spectrum, tree cover and intensity of attack. The fauna of windfalls in the area with the basic level of Ips typographus and in the gradation area differed by species diversity. In the gradation area, frequency of the occurrence of Ips typographus (L.) was higher by 20-40%. P. chalcographus (L.) showed decreased stem cover in the gradation area. In the area with the basic state of Ips typographus, windfalls were intensively colonized by secondary species Hylurgops palliatus (Gyll.), Isarthron fuscum (Fabr.), Monochamus sp. With the increasing dbh (diameter at breast height) of windfalls the colonization of stems by Ips typographus was positively affected, H. palliatus, I. fuscum, Polygraphus poligraphus (L.) responded the other way round. Keywords: Norway spruce, the Beskids, windfalls, cambioxylophages, Ips typographus, Pityogenes chalcographus, Ips amitinus, Polygraphus poligraphus Journal: Journal of Forest Science Pages: 497-509 Volume: 52 Issue: 11 Year: 2006 DOI: 10.17221/4530-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/4530-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200611-0001.txt Handle: RePEc:caa:jnljfs:v:52:y:2006:i:11:id:4530-JFS Template-Type: ReDIF-Article 1.0 Author-Name: J. Paluch Author-Workplace-Name: Faculty of Forestry, Agricultural University, Cracow, Poland Title: Factors controlling the regeneration process in unevenly aged silver fir forests: inferences from the spatial pattern of trees Abstract: The main objective of this study was to prove the relationship between the spatial pattern of trees and distribution of advanced regeneration in structured Abies alba Mill. forests in the Western Carpathians (of southern Poland). In 13 sample plots (0.45-1.00 ha in size), the locations of all live trees above 15 cm in d1.3 and all stumps of canopy trees (above 50 cm in d1.3) were determined. In addition, in all plots the coordinates of all live and dead pole-stage trees (5-15 cm in d1.3), in seven plots the coordinates of all live and dead younger saplings (0.5-1.3 m in height), and in eight plots the coordinates of all live and dead older saplings (above 1.3 m in height and below 5 cm in d1.3) were registered. The univariate and bivariate Ripley's K-function was applied to test spatial independence of the patterns of trees representing different size categories. In each of the stands, younger and older saplings and pole-stage trees showed an aggregated pattern. The strongest attraction between trees of these size categories was detected at the scale 6, 5 and 10 m, respectively. At the scale below 10 m, a positive spatial correlation was frequently found between large firs and pole-stage trees and saplings. A spatial repulsion between advanced fir regeneration and trees of the middle stand layer was negligible or observable only in a relatively large scale above 15 m. The patterns of saplings and trees of the lower stand layer appeared to be spatially independent in most of the stands being studied. These results suggest that in unevenly aged fir forests, a stable mechanism is generating the aggregated patterns of regeneration functions and the factors involved are spatially linked with the distribution of large firs. Therefore, a hypothesis is advanced that the spatial pattern of regeneration in such forests is controlled by edaphic factors - in particular, the humus form - and that light conditions play only a secondary role. Keywords: Abies alba, selection forest, regeneration, microhabita Journal: Journal of Forest Science Pages: 510-519 Volume: 52 Issue: 11 Year: 2006 DOI: 10.17221/4531-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/4531-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200611-0002.txt Handle: RePEc:caa:jnljfs:v:52:y:2006:i:11:id:4531-JFS Template-Type: ReDIF-Article 1.0 Author-Name: M. Švestka Author-Workplace-Name: Forestry and Game Management Research Institute, Jíloviště-Strnady, Czech Republic Title: Distribution of tribes of cockchafers of the genus Melolontha in forests of the Czech Republic and the dependence of their swarming on temperature Abstract: The abundance and species spectrum of cockchafers of the genus Melolontha and characteristics of the tribes in four forest regions of theCzechRepublic was explored. We used light traps, automatic meteorological stations and field investigations to study the course of swarming, species composition, abundance of the respective tribes, sex ratio during swarming and the dependence of swarming on the average daily temperature. Studies will continue in the next years and the objective is to use the results for prognosis of the occurrence of cockchafers and the damages subsequently caused by grubs in forest cultures. Keywords: forest protection, Melolontha hippocastani, Melolontha melolontha, cockchafer tribe, light trap Journal: Journal of Forest Science Pages: 520-530 Volume: 52 Issue: 11 Year: 2006 DOI: 10.17221/4532-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/4532-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200611-0003.txt Handle: RePEc:caa:jnljfs:v:52:y:2006:i:11:id:4532-JFS Template-Type: ReDIF-Article 1.0 Author-Name: M. Dvořák Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry Brno, Brno, Czech Republic Author-Name: D. Palovčíková Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry Brno, Brno, Czech Republic Author-Name: L. Jankovský Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry Brno, Brno, Czech Republic Title: The occurrence of endophytic fungus Phomopsis oblonga on elms in the area of southern Bohemia Abstract: The health condition of the population of elms in the region of southern Bohemiawas studied from the viewpoint of their decline, the occurrence of Dutch Elm Disease (DED) and the presence of other diseases. Of the total number of 105 elms in total 33 of them were without any symptoms of the disease or other damage. Elms regenerated quite spontaneously in the neighbourhood of mother trees and their increasing population in mixed forests is hopeful. According to macroscopic symptoms, DED was identified in 10 trees but the presence of pathogens Ophiostoma ulmi and Ophiostoma novo-ulmi was not identified in isolations. A possible reason of this observation is overgrowing the colonies by the Phomopsis oblonga mycelium. This fungus was identified in most isolations. Thus, its role requires further research. Keywords: elm, Ulmus, Dutch Elm Disease, Ophiostoma ulmi, Ophiostoma novo-ulmi, Phomopsis oblonga Journal: Journal of Forest Science Pages: 531-535 Volume: 52 Issue: 11 Year: 2006 DOI: 10.17221/4533-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/4533-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200611-0004.txt Handle: RePEc:caa:jnljfs:v:52:y:2006:i:11:id:4533-JFS