eng Poznan University of Life Sciences, Poland Acta Scientiarum Polonorum Silvarum Colendarum Ratio et Industria Lignaria 16440722 2025-09-30 24 3 article Anna Ankudo-Jankowska 1 Monika Starosta-Grala 1 Katedra Ekonomiki i Techniki Leśnej, Uniwersytet Przyrodniczy w Poznaniu The aim of this study was to assess losses resulting from forest damage in the State Forests National Forest Holding (SFNFH) between 2011 and 2023. Four main categories of willful damage were analyzed: timber theft, theft and destruction of property, illegal use of forest resources, and poaching. The analysis revealed that the total value of losses during the study period amounted to nearly PLN 90 million, with the largest shares attributed to timber theft (39%) and illegal forest use (32%). Poaching and theft or destruction of property each accounted for approximately 14% of total losses. A downward trend was observed in losses caused by timber theft and poaching, stability was noted in the case of theft and destruction of property, while losses related to illegal forest use showed a dynamic increase. The results also confirmed a significant spatial differentiation of losses between the regional directorates of the State Forests (RDSF), highlighting the need for further research into the factors determining their scale and structure. https://www.forestry.actapol.net/volume24/issue3/27_3_2025.pdf willful forest damage State Forests economic losses eng Poznan University of Life Sciences, Poland Acta Scientiarum Polonorum Silvarum Colendarum Ratio et Industria Lignaria 16440722 2025-09-30 24 3 article Mariusz R. Szczepański 1 Muzeum Przyrodniczo-Łowieckie w Uzarzewie k. Poznania, Polska In Poland, Lilium bulbiferum L. grows primarily in Lower Silesia. Localities known from the northwestern part of the country are considered anthropogenic. In contrast, Lilium martagon L., has a slightly larger distribution range than L. bulbiferum mentioned above. Similarly, it can be found in the Sudetes and the Carpathians, but it is somewhat rarer in the lowlands. New localities of these plants were discovered at the former Protestant cemetery in Potulice and in the historic park in Mały Buczek, the Lipka commune, in the Krajna Lake District. https://www.forestry.actapol.net/volume24/issue3/28_3_2025.pdf Lilium bulbiferum Lilium martagon Protestant cemetery historic park northern Greater Poland eng Poznan University of Life Sciences, Poland Acta Scientiarum Polonorum Silvarum Colendarum Ratio et Industria Lignaria 16440722 2025-09-30 24 3 article Błażej Drożdżewski* 1 Patrycja Jankowska 2 Jerzy Łamaszewski 1 Weronika Kopa 1 Marcin Łaguna 1 Kacper Jankowski 1 Agata Osoś 3 Sekcja Etnobotaniczna Koła Naukowego Leśników Uniwersytetu Przyrodniczego w Poznaniu, Poznań Instytut Biotechnologii Przemysłu Rolno-Spożywczego im. prof. Wacława Dąbrowskiego - Państwowy Instytut Badawczy, Zakład Koncentratów Spożywczych i Produktów Skrobiowych, Poznań Koło Naukowe Technologów Żywności Uniwersytetu Przyrodniczego w Poznaniu, Poznań The growing popularity of tree sap based products stems from the presumed health-promoting properties of this raw material. Moreover, the maple syrup market, dominated by Canada, is recording a steady increase in the size and value of production. The study attempted to expand knowledge regarding contents of sugars and health-promoting substances in the sap of sycamore maple Acer pseudoplatanus L. growing in the Promotional Forest Complex “Noteć Forest”. Sap was collected in the period 5–8.03.2022 and analyses were conducted for individual compounds in the following groups: sugars, antioxidants, preservatives, and mineral compounds. Low contents of sugars and health-promoting substances were found, indicating that the study area may not be suitable for the economic use of sycamore sap. In addition, an elevated level of manganese was recorded, which may have negative effects on human health with sycamore sap regular consumption. https://www.forestry.actapol.net/volume24/issue3/29_3_2025.pdf sugars F-AAS HPLC sycamore preservatives antioxidants health-promoting substances mineral compounds eng Poznan University of Life Sciences, Poland Acta Scientiarum Polonorum Silvarum Colendarum Ratio et Industria Lignaria 16440722 2025-09-30 24 3 article Jakub Glura 1 Katedra Ekonomiki i Techniki Leśnej, Uniwersytet Przyrodniczy w Poznaniu The State Forests National Forest Holding (PGL LP) operates in a complex external environment that significantly impacts its operations. This environment not only influences decisions made within the State Forests’ management, but is itself influenced by the organization itself. The aim of this study was a multifaceted analysis of the State Forests’ environment, divided into its more distant (macroenvironment) and closer (microenvironment) environment. The study covered the company’s current period of operation and included a review of current legislative provisions related to the State Forests’ environment. The analysis revealed that both the macroenvironment (to a lesser extent) and microenvironment are characterized by a high dynamic of change (from a dominant production function to a prioritization of ecological or social functions), which can consequently lead to the escalation of social conflicts related to forest management. Furthermore, a key challenge for PGL LP is consistently building and maintaining a positive image in such areas as nature conservation, tourism development, forest education, and cooperation with local governments. https://www.forestry.actapol.net/volume24/issue3/30_3_2025.pdf state forests; macroenvironment; microenvironment; management eng Poznan University of Life Sciences, Poland Acta Scientiarum Polonorum Silvarum Colendarum Ratio et Industria Lignaria 16440722 2025-09-30 24 3 article Robert Kuźmiński 1 Artur Chrzanowski 1 Marek Bąkowski 2 Izabela Jung 1 Uniwersytet Przyrodniczy w Poznaniu, Katedra Entomologii i Fitopatologii Leśnej, Poznań, Polska Uniwersytet im. Adama Mickiewicza w Poznaniu, Zakład Zoologii Systematycznej, Instytut Biologii Środowiska, Poznań, Polska The Wolin National Park is one of those parks that are poorly recognised in terms of insect species richness. Although information concerning butterflies and moths from the Wolin Island appeared as early as the 19th century, apart from a few exceptions, there has been no comprehensive research and there is a lack of detailed information on the species of moths from the Macrolepidoptera group found in the Park. The present-day list of moths of the area is largely based on historical data. With many species, contemporary information on their occurrence is lacking. In 2024, research was started to provide insight into species richness of moths of the Wolin National Park. This paper presents preliminary results from the first research season. On forest sites, non-forest and ecotone zones, 310 species of moths from 10 families of the Macrolepidoptera group and one species representing the Crambidae family of the Microlepidoptera group were recorded. The collected insects included both common species and species considered new to the West Pomeranian Voivodeship, as well as species rare on a national scale and species first confirmed from the West Pomeranian Voivodeship after 1985. As the presented results refer to one research season, they should be treated as preliminary information and therefore it is advisable to continue comprehensive faunistic research, in order to fully understand the species richness of moths and butterflies found in the Wolin National Park. https://www.forestry.actapol.net/volume24/issue3/31_3_2025.pdf Lepidoptera moths National Park nature conservation faunistics Wolin National Park