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W dniach 15–17 marca 2022 r. w Instytucie Badawczym Leśnictwa odbyła się XII Sesja Zimowej Szkoły Leśnej, której tematem był „Wpływ zmian klimatu na środowisko leśne”. Spośród licznych propozycji, o wyborze powyższego tematu przesądziło obserwowane od wielu lat systematyczne pogorszanie się stanu zdrowotnego drzewostanów na skutek synergicznego oddziaływania wielu czynników abiotycznych i biotycznych w warunkach zmian klimatu. Współorganizatorem Sesji była Dyrekcja Generalna Lasów Państwowych. Merytoryczne aspekty XII Sesji zostały przygotowane i opracowane przez Radę Programową Zimowej Szkoły Leśnej w składzie: dr hab. Krzysztof Stereńczak, prof. IBL (przewodniczący), prof. dr hab. Bogdan Brzeziecki, mgr inż. Michał Graczyk, prof. dr hab. Andrzej Grzywacz, prof. dr hab. Andrzej Jagodziński, prof. dr hab. Janusz Olejnik, mgr inż. Jan Tabor, mgr inż. Krzysztof Rostek, prof. dr hab. Iwona Skrzecz, dr inż. Klaudia Ziemblińska. Rada Programowa określiła nie tylko zakres problematyki XII Sesji, ale także propozycje tematyczne referatów zamawianych oraz ich autorów. W trakcie trzech dni obrad prelegenci przedstawili 33 referaty. Referaty wygłosili również zaproszeni goście zagraniczni reprezentujący: Uniwersytet w Helsinkach, Czeski Uniwersytet Przyrodniczy w Pradze, Instytut Badań nad Zmianami Globalnymi (Czechy), Uniwersytet Wspólnoty Wirginii, Łotewski Państwowy Instytut Badawczy Leśnictwa oraz Integrated Carbon Observation System. W XII Sesji, która odbyła się w wersji online, wzięło udział niemal 200 osób reprezentujących m.in.: Ministerstwo Klimatu i Środowiska, jednostki organizacyjne Lasów Państwowych, ośrodki uniwersyteckie i instytuty badawcze. Liczne grono stanowili również przedstawiciele ośrodków naukowych oraz polskich uczelni leśnych.

The protection of reforested areas against the large pine weevilHylobius abietisis one of the greatest forest management challenges in many European countries. No information exists on the spatial distribution of this pest, which is necessary to assess its abundance and, consequently, to precisely estimate its threat to reforested sites. The aim of this study was to assess the spatio-temporal changes in the number ofH. abietisbeetles in reforested clear-cut areas (reforestations) and neighbouringPinus sylvestrisstands, from which these beetles are assumed to migrate to the reforestations. In this two-year study, baited traps were used to catchH. abietisbeetles in the reforestations and neighbouring stands. The results revealed significantly more beetles in the neighbouring old stands (61–69 years) than in the young stands (5–11 years). The distribution of the beetles in both the old and young stands was inversely dependent on the distance from the stand edge. The large pine weevil migration to the reforestations was most intense in mid-May and early June. In May, most beetles were collected along the edges of the reforestations; in June, their distribution was more regular; and in July, the beetles were more abundant in the central part of the reforestations. These results allowH. abietismonitoring improvement, which is an important element of integrated forest protection.

The intraspecific variation of climate&ndash, growth relationships observed on provenance trials results from among&ndash, provenance differences in phenotypic plasticity. Temporal variation in radial growth synchrony among provenances may be modified by adverse climatic/biotic conditions such as drought or insect defoliation. However, these factors can potentially diminish provenance&ndash, specific growth reactions and, consequently, prevent the identification of provenances with the highest adaptive potential. Thus, understanding the influence of major biotic conditions on provenance&ndash, specific climate&ndash, growth relationships seems to be important to anticipate climate change. To determine provenance&ndash, specific growth patterns in relation to climate conditions (drought), seed production (reproductive effort), and insect defoliation in a common garden of Scots pine (Pinus sylvestris L.), we applied dendroecological techniques to time&ndash, series of tree&ndash, ring widths and basal area increments. The long&ndash, term records of seed production and insect outbreaks from the local Scots pine stands were used to explain the potential effect of biotic factors on the temporal dynamics of radial growth synchrony. During a period of favorable growth conditions, Scots pine provenances showed a decline in inter&ndash, provenance synchronicity in growth patterns, while during years affected by severe soil water deficit and insect defoliation, they manifested high uniformity in growth dynamics. The long&ndash, term trend in growth synchrony among P. sylvestris provenances depend on both abiotic and biotic environmental factors. This gains significance following an introduction of the appropriate selection of tree provenances for climate&ndash, smart forestry.

Patient safety means a condition in which a patient does not suffer any unnecessary actual harm, nor is exposed to any potential harm related to healthcare. The World Health Organization&rsquo, s recognition of patient safety, as one of the most important factors in determining high quality healthcare, initiated the systematic introduction of changes in the approach to this issue, both globally and on the level of individual healthcare service providers. In order to enhance the quality and ensure the safety of healthcare services provided, national, European Union, and worldwide institutions focus on the introduction of a so-called patient safety culture. The creation of this safety culture would not be possible without the establishment of its legal framework. The purpose of this article is to shed light on the legislative achievements of the European Union within patient safety, taking into consideration acts that summarize the level of implementation of individual recommendations. This study can be useful both for those who focus their scientific interests on the subject of patient safety and those who need concise information on the legislative measures of the Community in this respect, as well as for medical personnel who want to become acquainted with this issue without reading comprehensive legal acts.

Small banded pine weevil Pissodes castaneus is one of the most dangerous pests of Pinus sylvestris plantations and thickets. The lack of effective and environmentally safe methods of limiting the number of the pest justified to undertake the studies aimed at the laboratory and field evaluation of biological activity of entomopathogenic fungus Beauveria bassiana used to reduce the numbers of small banded pine weevil. In laboratory, the beetles were reared on the sections of fresh Scots pine twigs that were treated with five suspensions containing from 1 × 104 to 1 × 108 conidia of B. bassiana in 1 ml. During the 3-week rearing, insect mortality was determined and median lethal concentration LC50 was calculated. The field treatments consisted of spraying 4-year-old P. sylvestris trees with two formulations of fungus containing 1 × 108 conidia ml−1 of suspension. Treatments consisted of spraying 4-year-old P. sylvestris trees with two fungus formulations containing 1 × 108 conidia ml−1. High insecticidal activity of B. bassiana was found because the pathogen caused the death of 14-94% of P. castaneus beetles, LC50 = 6.51 × 105 conidia ml−1. Field treatments did not result in the reduction of plant damage caused by small banded pine weevil; therefore, the spraying of trees with B. bassiana cannot be recommended to protect the young stands of P. sylvestris against pest.

This study estimates the efficacy of an attract-and-kill (A&K) technique to control the horse chestnut leaf miner, Cameraria ohridella Deschka and Dimic (Lepidoptera, Gracillariidae), an invasive insect pest of the horse chestnut, Aesculus hippocastanum L. (Hippocastanaceae). The A&K formulation was dispensed as 50 μl droplets of paste-like matrix, containing C. ohridella sex pheromone, (8E,10Z)-tetradeca-8,10-dienal (85% + pure; 0.16% w/w) and a fast acting contact toxicant, pyrocides (94% pure; 6% w/w), applied directly to the bark of the trees. It was tested in 2003 at rates of 30 and 45 droplets/tree at the Ostrobramska site and at rates of 30, 60 and 90 droplets/tree at the Woloska site in Warsaw, Poland, for the first insect generation. A set of untreated plots (0 droplets/tree) was established at each site as well. The treatment efficacy was estimated using two indices: (1) moth catches in pheromone traps and (2) the number of mines per leaf. Trap catches were significantly higher in the untreated plots than in the treated plots regardless of the application rate in all sites. However, there were no significant differences in leaf damage amongst all plots on each site. At the “Lazienki Krolewskie” park the attractiveness of two types of pheromone sources were compared: traps were baited with rubber septum lures or with A&K droplets. The catches of C. ohridella in traps baited with lures were lower than captures in A&K droplet-baited traps, but the difference was not significant. Possible reasons for the low efficacy of the A&K method in management of C. ohridella and reducing leaf damage are discussed.

Background. Bone metastases are observed in many patients with neoplastic disease. Frequently, the first sign of metastasis is a pathological fracture in weight bearing regions. The proximal end of the femur is the most common site of long bone involvement by metastatic disease and pathological fracture. Treatment of metastatic disease should be multidisciplinary: both oncologic and orthopedic. The target of operative procedure is a relief of pain and regaining the ability to walk. In case of changes in proximal end of the femur, the tumor resection and total hip arthroplasty is a procedure of choice.br /Material and methods. In the Orthopedic Clinic in Warsaw, 27 patients with bone metastases in proximal end of the femur had total hip arthroplasty performed in the period of 1998-2002. In 16 cases it was possible to collect data about postoperative period - these patients were analyzed. In 14 patients postresective prostheses were used and in 2 procedures - standard prostheses.br /Results and Conclusions. This type of treatment reduced pain, restored weight bearing ability of the limb and improved comfort of life. Subjective estimation of treated patients was good. Only in one case the clinical result was poor. Total hip arthroplasty is an efficacious palliative treatment in patients with metastases in proximal end of the femur. Final effect of therapy depends on individual precise preoperative planning and multidisciplinary specialist postoperative care.