The aim of the study was to examine the major biometric parameters of the fox (Vulpes vulpes) in the Bieszczady region and to investigate possible differences related to age, sex and the place of culling. The study was conducted on 61 foxes shot in hunting in 2005–2007. Total measured were 61 foxes. For characterizing the basic dimensions of the body size used: body length, height at withers, body circumference, weight of the whole body. Standard cranial measurements were taken for 6 parameters on each skull: length of the profile of the skull, the maximum width of the skull, braincase width, the width of the mouth of the rear nostrils, the height of the braincase and the height of the mandibular branch. In result was detected low sexual dimorphism, but the differences were not statistically significant. The research indicated that a large impact on the condition and state of health of foxes have weather conditions, and therefore individual assessment of their quality should not be based only on their weight. Relationship between the biometrics of foxes and the length and width of their skulls revealed that the weight of foxes can suggest value of the trophy.

Research of moths and butterflies was been conducted in the Giant Mountains in 1998–2003. The results were to create a checklist of moths and butterflies. 109 species of Tortricidae have been shown, which represents approx. 23% of all species currently known in Poland. The Larch Bud Moth Zeiraphera griseana may continue to threaten the sustainability of spruce stands. Its constant monitoring of site gradation is located on Hala Szrenicka. Clepsis rogana is a typical mountain species of tortrix moths occurs in the Karkonosze mountains at 950–1300 m above the sea level. The research found 7 new species for the voivodeship of Lower Silesia and 11 species of rare national fauna.

In forests, a frequent problem is obtaining of road in wetlands. This road is characterized by natural – difficult conditions of soil-water road investment. These conditions are usually dictated by a high groundwater level and occurrence of low load-bearing organic soils. Using technology based on geotextiles can be reduce the costs of road construction and the degree of interference in the environment. This paper presents the results of an experiment, whose primary objective was to compare the performance bearing capacity the forest road surface made of crushed rubble of technologies using geotextile reinforcement road base. Five experimental stretch on a forest road running through wetlands were established in autumn 2014. Surface stretch E consists of crushed rubble, other stretches A-D consist of geotextile with track reinforcement. The track reinforcement consisted in adding stronger fibres to the geotextile on the width of two vehicle tracks, so that a higher performance could be acheved of both of geotextile puncture, elongation and tensile strength in the area of movement of trucks transporting wood on forest roads. On the two stretches of geotextile laid flat and other two stretches wrapping it into a semi-mattress and covered with varied medium sand or crushed granite. In 2015, measurements were carried out of terrain bearing capacity (E_vd, E₁, E₂) and the level of density surface Light Weight Deflectometer (LWG) and VSS test (static plate load test). Studies have shown that all the variants reinforceing the pavement structure made on the basis of geotextile had similar bearing capacity, while demonstrating significantly better performance compared to using technology rubble. At the same time studies have not shown the expected difference in bearing capacity surface between the tested technologies using different options to strengthen the geotextile.

Mineral and foliar fertilization are the main source of nutrients for seedlings in nurseries. The paper presents the results of comparing effects of different methods of fertilization and various fertilizers containing nitrogen on the height of the two-year seedlings of oak (Quercus robur L.), in subsequent years of production cycle. Acorns were sown on 7.11.2011. In the experiment were analyzed six variants of fertilization: (1) control without fertilization; (2) 24 kg N/ha – foliar 1% Urea + 2.04 kg N/ha – foliar 1% Bioekor; (3) 24 kg N/ha – foliar 1% Urea + 0.72 kg N/ha – foliar 1% Florovit; (4) 24 kg N/ha – soil, ammonium nitrate + 2.04 kg N/ha – foliar 1% Bbioekor; (5) 24 kg N/ha – soil, ammonium nitrate + 0.72 kg N/ha – foliar 1% Florovit; (6) 24 kg N/ha – soil, ammonium nitrate + 24 kg N/ha – foliar 1% Urea. The average height of the one-year oak seedlings was 16.24 cm. Analysis of variance for height did not show statistically significant differences between the variants. The average height of two-year seedlings of oak was 43.38 cm. The analysis contrasts measurements carried out after the second year of the experiment showed a significant difference in height between the control variant and fertilization variants. There were no differences within individual groups of subjects fertilization.

The State Forests National Forest Holding implementing the statutory objectives shall bear the costs of forest management and protection, as well as significant capital investment, which are realized through external funds. The aim of the study was to analyse the activity taken by forest districts within the Regional Directorate of State Forests in Krosno (RDSF Krosno) with use external sources of financing, in 2007–2013. Data sources were the Report Annual RDSF Krosno Information for 2007–2013 and Report on the implementation of projects by forest districts for the years 2010–2013, an additional source of information were interviews with office workers. In the analysed period RDLP Krosno unit raised funds for the implementation of 62 projects in 26 forest districts. The total amount of funding actions taken in units RDSF Krosno was 84 953.1 thousand PLN. Vast majority of this amount came from EU funds (approximately 90%), the majority of funds came from the Operational Program Infrastructure and Environment and the Rural Development Program.

Armillaria root rot is one of the most dangerous diseases of tree root systems in Poland, occurring both in coniferous and deciduous stands. The greatest economic losses in coniferous stands cause Armillaria ostoyae, on the other hand Armillaria gallica is considered to be the most important species infecting deciduous stands. The aim of the research was to define diversity of Armillaria species settling the chosen oak stands in the Górzyska Forest Range (Smolarz Forest District, Szczecin Regional Directorate of State Forests) by means of commonly used, in the molecular biology area, polymerase chain reaction (PCR) and restricted fragment length polymorphism (RFLP) techniques. Rhizomorphs were collected from soil and the root collar of 74 oaks characterized by differential loss in assimilation apparatus. The analysis of IGS region of the ribosomal DNA in the PCR-RFLP technique allows to claim that dominant Armillaria species on the study area was Armillaria gallica.

The aim of the study was to examine the quality of roe deer bucks hunted in 2012/2013 in the Opolskie region (south-western Poland). As a criterion was adopted carcass weight, form and weight of antlers. As a result it was found that the best individuals in terms of weight, form and weight of antler harvested in the field-type hunting inspectorates (forest cover to 10%), and the weakest in areas with more than 40% forest cover. There was also evidence that in areas where the fertile soil dominated (chernozem, alluvial and rendzinas) bucks were significantly heavier and imposed more massive antlers.

The goal of the study was to determine the mortality of pupae of Panolis flammea and Hyloicus pinastri caused by Micromammalia in pine tree stands and in deciduous tree and bush patches present in such tree stands. The pupae of P. flammea and H. pinastri were put in the forest plant litter. The observations were conducted in the period between 6 th February 2015 and 12 th March 2015 in eight tree and bush patches and in eight pine tree stands. It was shown that the number of insectivorous rodents is higher in small deciduous activity of small rodents damaging the pupae of pine beauty. Large pupae of pine-hawk month are more attractive for small rodents than smaller pupae of pine beauty.tree and bush patches than in the surrounding pine tree stands. The species composition of deciduous vegetation packets may not have significant impact on the numbers and feeding activity of small rodents damaging the pupae of pine beauty. Large pupae of pine-hawk month are more attractive for small rodents than smaller pupae of pine beauty.