Utvrđivanje bionomije i utjecaja štetnika smrekine ose listarice, Pristiphora abietina na zdravstveno stanje šumskih kultura smreke provedeno je u sastojinama Šumskoprivrednog područja „Ključko“. Istraživanjem su procjenji va ni i mjereni sljedeći parametri: početak, tok i kraj rojenja male smrekine ose listarice, biologija i tok nastajanja simptoma na napadnutim stablima smreke. Za ulov jedinki P. abietina korištene su žute, ljepljive, ploče. Svaka od serija za ulov imala je 10 ploča sa 20 ljepljivih površina. Ukupno je u 180 ljepljivih ploča, ulovljeno 2640 jedinki P. abietina, od toga 1903 mužjaka ili 72,1 % i 737 ženki ili 27,9%. Utvrđene su značajne štete uzrokovane ovim štetnikom na istraživanom području.

UDK: 595.42:582.685.4(497.6 Sarajevo) Urban green areas in Sarajevo are of the most importance for the overall appearance of the city and the quality of life in it. In recent years there has been a decline in the area under vegetation. The main reason for the loss and degradation of green areas is anthropogenic factor which predisposes urban greenery with its activities to various other biotic and abiotic factors. Air pollution, drought, high temperatures, soil and water pollution are group of abiotic factors which synergetic cause physiological changes in plant species. The fall of physiological resistance causes exposure of plants to biotic factors, especially insects, fungi, and recently mites. In this paper, the research was conducted in order to determine the identification of harmful species of mites on the linden trees and determine the intensity of infection. Linden trees are designed as an avenue that stretches from Suada and Olga Bridge to the TV home in Alipašino Polje. Identification was based on symptoms established on the leaf material directly in the field and in the laboratory with the use of microscopes and binoculars. Laboratory studies were carried out at the Faculty of Forestry in Sarajevo. The intensity of infection of trees was determined HAWKSWORH'S six class system (1986). A total of 200 trees were analyzed of which is the 136 infected by phytophagous mites. We identified five types of mites. Found species belonged to the family Eriophyidae and Tetranychidae. Following types of mites are identified from the first family: Eriophyestiliae (Eriophyoidea), Eriophyestiliaelateannulatus (Eriophyoidea), Eriophyesexilis (Eriophyoidea), and Eriophyesleiosoma (Eriophyoidea). From other family revealed the presence of mite Eotetranychustiliarum (Tetranychoidea). The result of research conducted in the period from May to August showed a tendency of all recorded species of mites to the lower parts of the tree crown and going to the higher parts their numbers are decreasing.

2 Prof. Dr Mirza Dautbasic, Assist. Prof. Dr. Osman Mujezinovic, Faculty of Forestry University of Sarajevo, Zagrebacka str. 20, Sarajevo, Bosnia-Herzegovina; 3 Prof. DSc Plamen Mirchev, Prof. DSc Georgi Georgiev, Assist. Prof. Dr Margarita Georgieva, Forest Research Institute – Bulgarian Academy of Sciences, 132 St. Kl. Ochridski Blvd., BG-1756, Sofia, Bulgaria; E-mail: plmirchev@hotmail.com UDK 630* 442 (001) Izvorni znanstveni clanak – Original scientific paper Sumarski list, 1–2 (2015): 69–71

Summary Baryscapus transversalis (H ymenoptera: Eu lophidae) was es tablished fo r fir st ti me as an eg g hy perparasitoid of Tha umetopoea pityocampa (L epidoptera: No todontidae) in Bo snia an d He rzegovina. It wa s re ared fr om eg g bat ches of pin e pr ocessionary mo th col lected on Pi nus nigra in th e reg ion of Bo racko je zero. In la boratory con ditions, 80 sp ecimens of B. transversalis wer e re ared dur ing emer ging per iod of 20 da ys bet ween 3 an d 22 No vember 2013. In th e eg gs o f T . pityocampa, b oth m ales a nd f emales o f B . transversalis de veloped, in s ex ra tio ( ♀♀:♂♂) 3:1.

UDK: 630*4:582.475(497.6 Pale) Total of 125,479 ha of different stated owned forest cultures were registered in the territory of Bosnia and Herzegovina (1990). Stability of forest even – aged stands and forest communities in genera has been endangered by damaging biotic and abiotic factors of local and global nature. The biggest damages on forest cultures have been caused by insects and fungi, biotic factors, and snow and wind, abiotic. The negative influence of global factors, that is, global climate changes has recently stood out. The aim of this research was to determine of health status of forest even – aged stands. Research for the purpose of this work has been carried out in the territory of Forest management Jahorina, Pale with three forest even – aged stands: Norway spruce, Scots pine and forest even – aged stands of other coniferous (European larch and Douglas fir). Research included 796 trees of Norway spruce, Scots pine, European larch and Douglas fir. Presence of insects was identified on 15,58%; fungi on 2,14%, and mechanical damages on trunk and/or crown 11,06% of the total number of examined trees. Of the total number of examined trees, the share of mechanical damages on trunk and/or crown of trees is as follows: first crown, and then trunk. Share of trees with mechanical damages on both crown and trunk is rather small. Identified damaging biotic and abiotic factors do not cause significant damages on the analyzed forest even – aged stands.

UDK 582.475:502.131.1(497.6) Adoption and implementation of sustainable biodiversity conservation policy is essential for sustaining natural resources. But development of effective strategies to achieve them is problematic. This is often the case due to the limited knowledge about the impact of biodiversity conservation policies on livelihood of local people. This study uses dichotomous choice format to assess cost and willingness to engage in the conservation of an endemic species – Picea omorica (Pančić) Purk.in Bosnia Herzegovina. The empirical data was generated from sites in the vicinity of Srebrenica, north east Bosnia and Herzegovina. The data was analyzed with the aid of the logit regression model. The study showed that the respondents’ mean willingness to pay per year to conserve the pine was 1.4 percent of their income from non-timber forest products. The decision to conserve Picea omorica was influenced by factors such as cost associated with conservation, income from non-timber forest products, the distance of the respondent’s residence to the site location, education and occupation.

UDK: 582.475:582.728.4(497.6)            630*44:582.475(497.6) In terms of the health status, in Bosnia and Herzegovina, European silver fir (Abies alba) is currently most threatened by the white mistletoe (Viscum album ssp. abietis). Along with drought and pollution, white mistletoe infestation plays an important role in silver fir decline. The aim of this research was to determine the intensity of infestation of European silver fir trees by the white mistletoe. In order to realize the defined aim, two compartments were chosen in the area of Forest Management Association of Zenica-Doboj Canton and Forestry Office “Olovo” where the analysis of the presence of mistletoe was conducted. In total, 451 fir trees were examined and an assessment of the intensity of infested trees was carried out by implementation of Hawksworth Index of Infestation. According to the results conducted by the research, it was determined that the intensity of infestation of European fir stands differed according to the thirds of crown of the tree. Significant differences were also found in the severity of mistletoe intensity on trees of host trees within the diameter classes. A large number of mistletoe shrubs further deplete the host tree, making it more susceptible to secondary attacks by harmful insects and pathogens.

UDK 613.164:711.4]:630*27(497.6 Sarajevo) Noise represents any unwanted, too loud, unpleasant or unexpected sound which negatively affects physical and/or mental health of people. Noise impedes human activities, causes indisposition, irritability, unrest, mental health and behaviour issues, fatigue and sleep deprivation, and even aggressive behaviour with noise volumes above 80 dB. In urban areas, i.e. all the places man lives and works in, the noise people are exposed to daily is called environmental, communal or general noise. Communal noise is a major problem of the closer human environment, especially in urban areas. One reliable means of protection against communal noise is an array of different green plantations. They absorb sound waves and thus lower the level of noise. The larger the density and depth of the plantations, the higher the level of noise protection, and the effectiveness also depends on the character of the plantations (composition, layout of different plants, construction, density, the presence of undergrowth and the shrub layer, height, etc.). In relation to the abovementioned, measuring communal noise in two distinctive locations in Sarajevo was conducted within this paper. The main objective of these measurings is to ascertain, in relation to allowable values (Law on noise protection in Sarajevo Canton), whether and to which degree communal noise exceeds the legally prescribed levels. Apart from that, the framework of this paper strives to ascertain the level to which city greenery affects lowering noise levels. The results show that the measured noise levels in both localities exceed the allowable values regulated by law to a great extent. It is also ascertained that city greenery lowers the noise level by approximately 8%,thus the paper presents recommendations on the method of erecting city greenery for purposes of noise protection.

1 doc. dr. sc. Osman Mujezinovic (osmansfs@yahoo.com); prof. dr. sc. Tarik Trestic (trestict@yahoo.com); prof. dr. sc. Mirza Dautbasic (mirzad@bih.net.ba), Sumarski fakultet Univerziteta u Sarajevu, Katedra za zastitu suma, urbanog zelenila i lovnog gospodarenja, Zagrebacka 20, 71000 Sarajevo, Bosna i Hercegovina 2 prof. dr. sc. Josip Margaletic, Sumarski fakultet Sveucilista u Zagrebu, Zavod za zastitu suma i lovno gospodarenje, Svetosimunska 25, 10000 Zagreb, Republika Hrvatska, e-mail: josip.margaletic@sumfak.hr UTJECAJ STANISTA NA PRISUTNOST SUMSKE VOLUHARICE (Myodes glareolus) I ŽUTOGRLOG SUMSKOG MISA (Apodemus flavicollis) NA PODRUCJU BOSNE

This paper compares the forest structure, regeneration and distribution of dead wood in a virgin forest remnant and a close-to-nature managed beech–conifer mixture situated on Grmeč Mountain in Western Bosnia. The investigations were carried out in a 1 ha permanent sample plot and 35 circular plots (20 m radius) in the virgin forest and in 17 circular plots (25 m radius) in managed forests. The number of trees in the managed forest was significantly (p = 0.05) higher than that in virgin forest and the distribution of the number of trees per diameter classes had a decreasing trend, but with a different shape in the virgin forest compared to the managed stands. In the lower diameter classes, the stock volume recorded in virgin forest was half of that in the managed forest, whilst for higher diameter classes the cumulated volume of the growing stock was almost double in virgin forest. The young crops had a significantly lower presence in the virgin forest and a larger volume of dead wood was identified in the virgin forest than in managed stands. The study results are important in assessing the consequences of close-to-nature management on the forest structure and regeneration when compared to the condition in virgin forests.