61. Global guidelines for the sustainable use of non-native trees to prevent tree invasions and mitigate their negative impactsGiuseppe Brundu, Aníbal Pauchard, Petr Pyšek, Jan Pergl, Anja M. Bindewald, Antonio Brunori, Susan Canavan, Thomas Campagnaro, Laura Celesti-Grapow, Michele de Sá Dechoum, Marjana Westergren, 2020, original scientific article Abstract: Sustainably managed non-native trees deliver economic and societal benefits with limited risk of spread to adjoining areas. However, some plantations have launched invasions that cause substantial damage to biodiversity and ecosystem services, while others pose substantial threats of causing such impacts. The challenge is to maximise the benefits of non-native trees, while minimising negative impacts and preserving future benefits and options. A workshop was held in 2019 to develop global guidelines for the sustainable use of non-native trees, using the Council of Europe % Bern Convention Code of Conduct on Invasive Alien Trees as a starting point. The global guidelines consist of eight recommendations: 1) Use native trees, or non-invasive non-native trees, in preference to invasive non-native trees; 2) Be aware of and comply with international, national, and regional regulations concerning non-native trees; 3) Be aware of the risk of invasion and consider global change trends; 4) Design and adopt tailored practices for plantation site selection and silvicultural management; 5) Promote and implement early detection and rapid response programmes; 6) Design and adopt tailored practices for invasive non-native tree control, habitat restoration, and for dealing with highly modified ecosystems; 7) Engage with stakeholders on the risks posed by invasive non-native trees, the impacts caused, and the options for management; and 8) Develop and support global networks, collaborative research, and information sharing on native and non-native trees. The global guidelines are a first step towards building global consensus on the precautions that should be taken when introducing and planting non-native trees. They are voluntary and are intended to complement statutory requirements under international and national legislation. The application of the global guidelines and the achievement of their goals will help to conserve forest biodiversity, ensure sustainable forestry, and contribute to the achievement of several Sustainable Development Goals of the United Nations linked with forest biodiversity.
Keywords: biological invasions, code of conduct, environmental policy and legislation, invasion science, stakeholder engagement, stakeholder participation, sustainable forestry
Published in DiRROS: 26.01.2021; Views: 1349; Downloads: 878
 Full text (1,34 MB)
This document has many files! More... |
62. Decision support tool for the management of dynamic genetic conservation unitsA. Rudow, Marjana Westergren, J. Buiteveld, Václav Buriánek, B. Cengel, Joan Cottrell, G. de Dato, K. Järve, Davorin Kajba, Colin Kelleher, François Lefèvre, M. Liesebach, L. Nagy, Srđan Stojnić, M. Villar, L. Yrjänä, Michele Bozzano, 2020, final research report Keywords: decision support tool, genetic conservation
Published in DiRROS: 14.01.2021; Views: 1249; Downloads: 590
Full text (2,92 MB)
This document has many files! More... |
63. Cultivation and utilization of Poplars, Willows and other fast-growing trees in Slovenia : report of the National Poplar CommissionGregor Božič, Andreja Ferreira, Anže Martin Pintar, Gordana Beltram, Marko Kovač, Darja Istenič, Špela Ščap, Marjana Westergren, Marko Bajc, Daniel Zorko, Simon Verebič, Nikica Ogris, Hojka Kraigher, 2020, treatise, preliminary study, study Keywords: Poplar, Willow, Black Walnut, Black Locust, international commission, FAO, national report, questionnaire, genetics, forest protection, legislation, categorisation, forest products, ecology, Slovenia
Published in DiRROS: 11.12.2020; Views: 1423; Downloads: 431
Full text (624,71 KB) |
64. 30 let spremljanja stanja gozdov v SlovenijiGregor Božič, Matjaž Čater, Mitja Ferlan, Maarten De Groot, Tine Hauptman, Domen Finžgar, Katarina Flajšman, Anže Japelj, Dušan Jurc, Milan Kobal, Marko Kovač, Hojka Kraigher, Lado Kutnar, Tom Levanič, Aleksander Marinšek, Nikica Ogris, Matej Rupel, Primož Simončič, Iztok Sinjur, Mitja Skudnik, Mihej Urbančič, Andrej Verlič, Urša Vilhar, Saša Vochl, Marjana Westergren, Daniel Žlindra, 2015, scientific monograph Keywords: gozdarstvo, monitoring gozdov, zborniki, Slovenija
Published in DiRROS: 05.06.2020; Views: 2246; Downloads: 596
Full text (3,81 MB) |
65. Obvladovanje tveganj pri gospodarjenju s smreko v gozdovih Slovenije : zaključno poročilo projekta V4-1614Tom Levanič, Lado Kutnar, Andrej Kobler, Aleksander Marinšek, Matjaž Čater, Gregor Božič, Marjana Westergren, Maarten De Groot, Jernej Jevšenak, Samo Stopar, 2020, final research report Keywords: gospodarjenje z gozdovi, smreka, Slovenija, smrekovi gozdovi
Published in DiRROS: 27.05.2020; Views: 1776; Downloads: 725
Full text (11,73 MB) |
66. The interplay between forest management practices, genetic monitoring, and other long-term monitoring systemsDarius Kavaliauskas, Barbara Fussi, Marjana Westergren, Filipos Aravanopoulos, Domen Finžgar, Roland Baier, Paraskevi Alizoti, Gregor Božič, Evangelia V. Avramidou, Monika Konnert, Hojka Kraigher, 2018, review article Abstract: The conservation and sustainable use of forests and forest genetic resources (FGR) is a challenging task for scientists and foresters. Forest management practices can affect diversity on various levels: genetic, species, and ecosystem. Understanding past natural disturbance dynamics and their level of dependence on human disturbances and management practices is essential for the conservation and management of FGR, especially in the light of climate change. In this review, forest management practices and their impact on genetic composition are reviewed, synthesized, and interpreted in the light of existing national and international forest monitoring schemes and concepts from various European projects. There is a clear need and mandate for forest genetic monitoring (FGM), while the requirements thereof lack complementarity with existing forest monitoring. Due to certain obstacles (e.g., the lack of unified FGM implementation procedures across the countries, high implementation costs, large number of indicators and verifiers for FGM proposed in the past), merging FGM with existing forest monitoring is complicated. Nevertheless, FGM is of paramount importance for forestry and the natural environment in the future, regardless of the presence or existence of other monitoring systems, as it provides information no other monitoring system can yield. FGM can provide information related to adaptive and neutral genetic diversity changes over time, on a species and/or on a population basis and can serve as an early warning system for the detection of potentially harmful changes of forest adaptability. In addition, FGM offers knowledge on the adaptive potential of forests under the changing environment, which is important for the long-term conservation of FGR
Keywords: forest monitoring, forest genetic monitoring, forest genetic diversity, silviculture
Published in DiRROS: 20.02.2020; Views: 2131; Downloads: 1331
Full text (766,78 KB)
This document has many files! More... |
67. Evaluating WorldClim version 1 (1961-1990) as the baseline for sustainable use of forest and environmental resources in a changing climateMaurizio Marchi, Iztok Sinjur, Michele Bozzano, Marjana Westergren, 2019, original scientific article Abstract: WorldClim version 1 is a high-resolution, global climate gridded dataset covering 1961-1990; a ˝normal˝ climate. It has been widely used for ecological studies thanks to its free availability and global coverage. This study aims to evaluate the quality of WorldClim data by quantifying any discrepancies by comparison with an independent dataset of measured temperature and precipitation records across Europe. BIO1 (mean annual temperature, MAT) and BIO12 (mean total annual precipitation, MAP) were used as proxies to evaluate the spatial accuracy of the WorldClim grids. While good representativeness was detected for MAT, the study demonstrated a bias with respect to MAP. The average difference between WorldClim predictions and climate observations was around +0.2 °C for MAT and -48.7 mm for MAP, with large variability. The regression analysis revealed a good correlation and adequate proportion of explained variance for MAT (adjusted R2 = 0.856) but results for MAP were poor, with just 64% of the variance explained (adjusted R2 = 0.642). Moreover no spatial structure was found across Europe, nor any statistical relationship with elevation, latitude, or longitude, the environmental predictors used to generate climate surfaces. A detectable spatial autocorrelation was only detectable for the two most thoroughly sampled countries (Germany and Sweden). Although further adjustments might be evaluated by means of geostatistical methods (i.e., kriging), the huge environmental variability of the European environment deeply stressed the WorldClim database. Overall, these results show the importance of an adequate spatial structure of meteorological stations as fundamental to improve the reliability of climate surfaces and derived products of the research (i.e., statistical models, future projections).
Keywords: spatial analysis, spatial interpolation, geostatistics, ecological mathematics
Published in DiRROS: 20.02.2020; Views: 1833; Downloads: 1109
Full text (2,62 MB)
This document has many files! More... |
68. Katalog harmoniziranih kazalnikov za spremljanje trajnostnega gospodarjenja z gozdovi in nacionalnega gozdnega programa v Republiki SlovenijiMarko Kovač, Andrej Ficko, Špela Ščap, Mitja Piškur, Anže Japelj, Marjana Westergren, Gregor Božič, 2019, professional monograph Keywords: participacija, nacionalni program gozdov, kazalniki, Slovenija, Slovenija
Published in DiRROS: 17.10.2019; Views: 2273; Downloads: 731
Full text (1,00 MB) |
69. Indikatorji za spremljanje nacionalnega programa gozdov in trajnostnega gospodarjenja z gozdovi v Republiki Sloveniji : zaključni elaboratMarko Kovač, Andrej Ficko, Špela Ščap, Mitja Piškur, Anže Japelj, Milan Šinko, Marjana Westergren, Gregor Božič, 2019, final research report Keywords: participacija, nacionalni program gozdov, indikatorji, Slovenija
Published in DiRROS: 17.10.2019; Views: 2106; Downloads: 808
Full text (439,37 KB) |
70. Genetic diversity of core vs. peripheral Norway spruce native populations at a local scale in SloveniaMarjana Westergren, Gregor Božič, Hojka Kraigher, original scientific article Abstract: We investigated the levels of genetic diversity and population differentiation among core and peripheral populations of Norway spruce along an altitudinal gradient (from inversions to upper tree line) using isoenzymes (ISO) and nuclear simple-sequence repeats (SSR) markers on overlapping set of populations. Twenty-seven to seventy trees from 11 and 7 populations were genotyped with isoenzymes and SSRs, respectively. The results partially conform to the expectations of the central-peripheral hypothesis (CPH) and are consistent for both marker sets. Genetic differentiation among peripheral populations was low but significantly different from zero (FST-ISO = 0.013, FST-SSR = 0.009) and higher than that among core populations (FST-ISO = 0.007, FST-SSR = 0.005), conforming to central peripheral hypothesis. Contrastingly, levels of genetic diversity assessed by both richness and equitability measures did not significantly differ between peripheral and core populations (AR-ISO = 2.20 vs. 2.14, AR-SSR = 17.16 vs. 17.68, HE-ISO = 0.183 vs. 0.185, and HE-SSR = 0.935 vs. 0.935 for peripheral and core populations, respectively).
Keywords: central peripheral hypothesis, Picea abies (L.) Karst., genetic diversity, genetic differentiation, upper tree line, inversion
Published in DiRROS: 07.05.2018; Views: 8101; Downloads: 1787
Full text (561,16 KB)
This document has many files! More... |
