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Jukuri

Tervetuloa käyttämään Jukuria, Luonnonvarakeskuksen (Luke) avointa julkaisuarkistoa. Jukurissa on tiedot Luken julkaisutuotannosta. Osa julkaisuista on vapaasti ladattavissa. Luken muodostaneiden tutkimuslaitosten aikaisemmasta julkaisutuotannosta osan tiedot ovat järjestelmässä jo nyt ja kattavuus paranee jatkuvasti.

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Viimeksi tallennetut

Artificial nest predation, relative abundance, and activity patterns of mesocarnivores in relation to wild boar presence
Miettinen, Elmo; Holopainen, Sari; Huitu, Otso; Krüger, Heidi; Kunnasranta, Mervi; Väänänen, Veli-Matti
European journal of wildlife research (Springer Nature, 2025)
Intensifying nest predation is one of the suggested factors causing the wide decline of ground-nesting birds. Predation rates often increase with growing predator numbers, especially of invasive species. The emerging effects of novel species may, however, be hard to quantify due to interactions with native species. The wild boar (Sus scrofa) has recently expanded its range into Finland through natural dispersion, marking a significant northward extension of the range. In this ecosystem, little is known about the direct and indirect roles of wild boars as nest predators. Especially the potential avoidance of wild boars by other mammalian nest predators has not been studied. To address this gap, we conducted artificial nest and scent post experiments with camera traps on sites of wild boar presence and absence. We found that predation rates by wild boars were at similar modest levels than the rates of other mammalian predators in the area. No significant differences in the overall likelihood of nest predation or nest visits by mesocarnivores were observed between the study areas. Based on the scent post indices, however, mesocarnivores were less abundant on wild boar sites. Our study concludes that the effects of wild boars on nest survival rates are small at their current low densities. The study also provides a baseline for monitoring, as wild boars are expected to expand their range and density in the future.
Silkinhieno nopeusennätyspuu
Nuorteva, Heikki
Metsälehti : 16/2025 (Tapio, 2025)
Spatial distribution and isotopic signatures of N and C in mosses across Europe
Izquieta-Rojano, Sheila; Morera-Gómez, Yasser; Elustondo, David; Lasheras, Esther; Santamaría, Carolina; Torrens-Baile, Julen; Alber, Renate; Barandovski, Lambe; Coşkun, Mahmut; Coskun, Munevver; Danielsson, Helena; De Temmerman, Ludwig; Harmens, Harry; Jeran, Zvonka; Leblond, Sébastien; Martínez-Abaigar, Javier; Núñez-Olivera, Encarnación; Pesch, Roland; Pihl karlsson, Gunilla; Piispanen, Juha; Soja, Gerhard; Spiric, Zdravko; Stafilov, Trajče; Thöni, Lotti; Santamaría, Jesús Miguel
Science of the total environment (Elsevier, 2025)
The accumulation of nitrogen (N) in moss tissue has proven to be a reliable marker of increasing N deposition. However, this measurement does not offer additional data about the origin of pollution. In this respect, the analysis of the N isotopic ratios might be a helpful tool in providing supplementary information about the nature of the nitrogenous species in biomonitoring surveys. Furthermore, isotopic signatures have been extensively used in the study of N and carbon (C) biogeochemical cycles. The main purpose of this study was to determine N and C elemental contents and their stable isotopes in mosses to investigate atmospheric pollution patterns across Europe. We aimed at identifying the main N polluted areas and evaluating the potential use of isotopic signatures in the attribution of pollution sources at a regional scale. With these objectives in mind, >1300 samples from 15 countries from Europe, all of them participants of the ICP-Vegetation programme 2005–2006, were analyzed for their C and N contents and δ15N and δ13C. The results were compared to those derived from EMEP model, which provided modeled deposition and emission data, as well as to the predominant land uses at the sampling sites (based on CORINE Land Cover). This evaluation suggests that additional measurements of stable C and N isotopes in mosses could be a valuable tool in European environmental surveys. Such measurements not only provide useful information for identifying probable pollution sources but also enable the quantification of their contributions, serving as biological indicators of significant environmental processes. This study presents the first quantitative assessment of major atmospheric nitrogen (N) sources based on stable isotope analysis on a European scale, establishing a framework for evaluating historical changes in N across the region.
Integrating waters, bridging boundaries: a comprehensive review of Transboundary Mega-Basin Management for sustainable and equitable water governance
Mozumder, Mohammad Mojibul Hoque; Schneider, Petra; Deb, Dibash
Water international (Taylor & Francis, 2025)
This review explores the significance of transboundary mega-basin management (TMBM) in promoting sustainable and equitable governance of shared water resources. In the context of increasing water demand and climate variability, we assess how TMBM, which builds on integrated water resource management (IWRM) principles, addresses complex governance challenges. By analysing global case studies, including the Nile, Colorado, Mekong and Senegal River basins, we highlight effective practices in collaboration, benefit-sharing and adaptive governance. This study contributes to the conversation on global water governance by advocating innovative and inclusive strategies that ensure water security, environmental sustainability and peaceful international relations.
Enhancing Soil Physicochemical Properties and Fruit Production of Rosa roxburghii With Biochar‐Based Fertilizer in Karst Agricultural Systems
Xiang, Yangzhou; Luo, Jun; Liu, Ying; Luo, Yang; Bolan, Nanthi; Fan, Jing; Shurpali, Narasinha J.; Bhattarai, Hem Raj; Siddique, Kadambot H. M.; Li, Yuan
Food and energy security : 5 (Wiley-Blackwell, 2025)
The development of sustainable agricultural practices in Karst regions faces significant challenges due to inherent soil limitations and complex terrain characteristics. This study investigated the effects of biochar-based fertilizers on soil properties and fruit quality of chestnut rose (Rosa roxburghii) in Southwest China's Karst region. Three biochar types derived from R. roxburghii pomace (RPB), discarded mushroom substrate (DMB), and chili straw (CSB) were evaluated at five application rates in combination with conventional fertilizers (with nitrogen, phosphorus, and potassium). Results revealed that the RPB4 treatment (70% biochar) significantly enhanced soil moisture content (61.37%), organic matter content (22.73%), and available nitrogen (22.74%) compared to controls. Fruit quality parameters showed significant improvements under optimal biochar treatments, with vitamin C content increasing by 67.94% (DMB4), total flavonoids by 120.06% (RPB4), and soluble sugars by 148.69% (RPB4). Structural equation modeling revealed significant direct effects of biochar application on soil water content (Standardized path coefficient = 0.60) and pH (0.80). Principal component analysis identified RPB4 as the optimal treatment combination, explaining 69.328% of total variance in soil and fruit properties. These findings provide quantitative evidence for the efficacy of biochar-based fertilizers in improving both soil quality and fruit characteristics in Karst agricultural systems, while establishing optimal application rates for sustainable orchard management.