12 Works

Data from: Thermal differences between juveniles and adults increased over time in European forest trees

Maria Mercedes Caron, Florian Zellweger, Kris Verheyen, Lander Baeten, Radim Hédl, Bernhardt-Römermann Markus, Imre Berki, Jörg Brunet, Guillaume Decocq, Sandra Díaz, Thomas Dirnböck, Tomasz Durak, Thilo Heinken, Bogdan Jaroszewicz, Martin Kopecký, Jonathan Lenoir, Martin Macek, Malicki Marek, František Máliš, Thomas Nagel, Michael Perring, Petr Petřík, Kamila Reczyńska, Remigiusz Pielech, Wolfgang Schmidt … & Pieter De Frenne
Woody species’ requirements and environmental sensitivity change from seedlings to adults, a process referred to as ontogenetic shift. Such shifts can be increased by climate change. To assess the changes in the difference of temperature experienced by seedlings and adults in the context of climate change, it is essential to have reliable climatic data over long periods that capture the thermal conditions experienced by the individuals throughout their life cycle. Here we used a unique...

Data from: Rare events of massive plant reproductive investment lead to long-term density-dependent reproductive success

Magdalena Żywiec, Mateusz Ledwoń, Jan Holeksa, Piotr Seget, Barbara Łopata & Jose M. Fedriani
1. The level of reproductive investment and density and distance dependent (DDD) processes are major determinants of plant reproductive output. The reproductive investment of a plant population varies temporally, but whether and how density- and distance-dependent processes are affected by population-level reproductive investment is a puzzle. 2. We used a spatially explicit approach in order to examine DDD effects on Sorbus acuparia crop sizes for a continuous period of 16 years. Our special interest was...

Forest communities of the Tatra Mountains: A classification based on a permanent plot inventory in the Tatra National Park (Poland)

Remigiusz Pielech, Wojciech Różański, Antoni Zięba, Tomasz Zwijacz-Kozica, Paweł Kauzal, Kacper Foremnik, Jan Bodziarczyk & Jerzy Szwagrzyk
The Tatra Mts. are an area with a long tradition of phytosociological studies, as the first study using Braun-Blanquet’s approach in Poland was conducted in this region in the 1920s. However, a compre- hensive modern classification of the forest communities of the Tatra National Park (Polish part of the Tatra Mts.) is missing but urgently needed, for example, as a reference for forest stand conversion and restoration projects. In 2018, a systematic network of over...

The measurement of return on capital employed in assessment of company’s condition

Slawomir Lisek, Lidia Luty & Monika Zioło
The return on capital employed, as a financial ratio, is an important element of the assessment of the company’s condition. It shows the benefits gained by company shareholders against the invested capital. It constitutes the basic reason for investing in a particular enterprise. Thus, it is an important diagnostic variable in the construction of a synthetic indicator of the company’s financial standing. The aim of this article is to propose a universal, useful indicator of...

Zmienność cech wiązu górskiego Ulmus glabra Huds. rosnącego na uprawie zachowawczej ex situ w Nadleśnictwie Oleszyce

Jacek Banach, Kinga Skrzyszewska & Izabela Puk

Misinformation, internet honey trading, and beekeepers drive a plant invasion

Magdalena Lenda, Piotr Skórka, Karolina Kuszewska, Dawid Moroń, Michał Bełcik, Renata Baczek Kwinta, Franciszek Janowiak, David H. Duncan, Peter A. Vesk, Hugh P. Possingham & Johannes M. H. Knops
Biological invasions are a major human induced global change that is threatening global biodiversity by homogenizing the world’s fauna and flora. Species spread because humans have moved species across geographic boundaries and have changed ecological factors that structure ecosystems, such as nitrogen deposition, disturbance, etc. Many biological invasions are caused accidentally, as a byproduct of human travel and commerce driven product shipping. However, humans also have spread many species intentionally because of perceived benefits. Of...

Zmienność nasion Pinus sylvestris L. z uwzględnieniem barwy okrywy nasiennej

Jacek Banach, Kinga Skrzyszewska & Beata Pańczyk

Aconitum specimens sampled in the Dolina Małej Łąki valley (ML) and Dolina Miętusia valley (DM) in the Tatra Mountains

Agnieszka Sutkowska
In this study, our objection was to identify the extent of introgression between Aconitum species in a narrow mountain hybrid zone in the Tatra Mountains (West Carpathians, Poland). We expected that mountain topography may affect the genetic structure of the populations and hampered the interspecific gene flow. We used inter-simple sequence repeat (ISSR) molecular markers and chloroplast DNA (cpDNA) sequencing. The results revealed that the diploid and tetraploid species have different cpDNA haplotypes, and the...

Data from: EuMIXFOR empirical forest mensuration and ring width data from pure and mixed stands of Scots pine (Pinus sylvestris L.) and European beech (Fagus sylvatica L.) through Europe

Michael Heym, Ricardo Ruíz-Peinado, Miren Del Río, Kamil Bielak, David I. Forrester, Gerald Dirnberger, Ignacio Barbeito, Gediminas Brazaitis, Indrė Ruškytė, Lluís Coll, Marek Fabrika, Lars Drössler, Magnus Löf, Hubert Sterba, Václav Hurt, Viktor Kurylak, Fabio Lombardi, Dejan Stojanović, Jan Den Ouden, Renzo Motta, Maciej Pach, Jerzy Skrzyszewski, Quentin Ponette, Géraud De Streel, Vit Sramek … & Hans Pretzsch
This data set provides unique empirical data from triplets of Scots pine (Pinus sylvestris L.) and European beech (Fagus sylvatica L.) across Europe. Dendrometric variables are provided for 32 triplets, 96 plots, 7555 trees and 4695 core samples. These data contribute to our understanding of mixed stand dynamics.

Effectiveness of the financial management in terms of R&D activities across selected stock companies in Poland

Barbara Kiełbasa & Sławomir Lisek
The purpose of the study is to determine the financial impact of expenditure on research and development activities (R&D) of selected companies listed on the Warsaw Stock Exchange. The work is based on reports of 44 such companies, which conducted R&D activities between 2015 and 2017. Expenditure on R&D was taken as a diagnostic variable in the assessment of a given company’s management efficiency. The financial condition was assesed using three diagnostic indicators: the return...

Nauczyciel i wychowawca Profesor Zygmunt Ruta (1932–2021) – życie i nauka

Ryszard Ślęczka & Adam Ruta
W opracowaniu odniesiono się do młodości, wykształcenia i życia rodzinnego Zygmunta Ruty, jednego z najwybitniejszych profesorów krakowskiego środowiska naukowego. W części zasadniczej przedstawiono dorobek naukowy prof. Z. Ruty oraz starano się pokazać jego wpływ na losy współczesnej pedagogiki. Nie zapomniano też o jego związkach z dzisiejszym Uniwersytetem Pedagogicznym w Krakowie, które wyrażały się w licznych prac naukowych oraz sumienności w wykonywaniu zadań nauczyciela akademickiego.

Emerging stability of forest productivity by mixing two species buffers temperature destabilizing effect

Miren Del Rio, Ricardo Ruiz‐Peinado, Stig‐Olof Holm, Aris Jansons, Thomas Nord‐Larsen, Kris Verheyen, Andrés Bravo‐Oviedo, Hans Pretzsch, Ricardo Ruiz-Peinado, Hervé Jactel, Lluís Coll, Magnus Löf, Jorge Aldea, Christian Ammer, Admir Avdagić, Ignacio Barbeito, Kamil Bielak, Felipe Bravo, Gediminas Brazaitis, Jakub Cerný, Catherine Collet, Sonia Condés, Lars Drössler, Marek Fabrika, Michael Heym … & Andrés Bravo-Oviedo
The increasing disturbances in monocultures around the world are testimony to their instability under global change. Many studies have claimed that temporal stability of productivity increase with species richness, although the ecological fundaments have mainly been investigated through diversity experiments. To adequately manage forest ecosystems, it is necessary to have a comprehensive understanding of the effect of mixing species on the temporal stability of productivity and the way in which this it is influenced by...

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