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Ongoing climate change poses an increasing threat to biodiversity. To avoid decline or extinction, species need to either adjust or adapt to new environmental conditions or track their climatic niches across space. In sessile organisms such as plants, phenotypic plasticity can help maintain fitness in variable and even novel environmental conditions and is therefore likely to play an important role in allowing them to survive climate change, particularly in the short term. Understanding a species' response to rising temperature is crucial for planning well‐targeted and cost‐effective conservation measures. We sampled seeds of three Hypericum species (H. maculatum, H. montanum, and H. perforatum), from a total of 23 populations originating from different parts of their native distribution areas in Europe. We grew them under four different temperature regimes in a greenhouse to simulate current and predicted future climatic conditions in the distribution areas. We measured flowering start, flower count, and subsequent seed weight, allowing us to study variations in the thermal plasticity of flowering phenology and its relation to fitness. Our results show that individuals flowered earlier with increasing temperature, while the degree of phenological plasticity varied among species. More specifically, the plasticity of H. maculatum varied depending on population origin, with individuals from the leading range edge being less plastic. Importantly, we show a positive relationship between higher plasticity and increased flower production, indicating adaptive phenological plasticity. The observed connection between plasticity and fitness supports the idea that plasticity may be adaptive. This study underlines the need for information on plasticity for predicting species' potential to thrive under global change and the need for studies on whether higher phenotypic plasticity is currently being selected as natural populations experience a rapidly changing climate. [ABSTRACT FROM AUTHOR]

Crop wild relatives (CWR) are valuable wild plant species that can be used as genetic resources providing adaptive traits to crop plants and therefore they play an important role in future food security. This paper describes in situ and ex situ conservation planning of CWR species in Finland and includes the following parts: (a) drafting of the national CWR priority list, (b) undertaking the in situ conservation gap analysis and (c) identifying ex situ conservation gaps and multi-species collecting sites for the CWR in Finland. As a result of the study, essential information was acquired, which will enhance future planning of active science-based practical conservation of CWR in Finland. Based on the new data and earlier work, a number of conservation recommendations are presented. This national work has been carried out in connection with the larger Nordic regional CWR co-operation. [ABSTRACT FROM AUTHOR]

The aviation industry is facing the challenge of reducing fossil fuels and emissions. Fuel efficiency is improved by making efficient powerplant systems and lighter aircraft. Modern passenger aircraft utilize polymeric and polymeric composite materials to achieve lighter structures without compromising strength. The European Union already has legislation to prevent landfilling and to increase the use of recyclable materials in the automotive industry. While older-generation aircraft, made mainly from metallic materials, are easily dismantled and recycled into other uses, such a process does not yet exist for aircraft made from composite materials. In the coming years, the industry will have to answer the question of how retired polymeric composite aircraft structures are to be recycled. One solution to increase the life cycle of polymeric and polymeric composite parts would be closed-loop recycling. In this paper, a perspective of the closed-loop recycling of polymeric aircraft parts is discussed. The technical aspects of recyclability and the different business models for the remanufacture of a finger pinch shroud certified for use in Airbus A350-900 passenger aircraft are investigated. The results show that closed-loop recycling is possible for polymeric aircraft parts. Future studies could include studying an LCA between virgin and recycled materials for a certain part. [ABSTRACT FROM AUTHOR]

Ecological concerns and the impending depletion of fossil fuels are driving the development of new bio-based, green products. Natural fibers are used increasingly as a filler or reinforcement in commercial thermoplastics due to their low cost, high specific properties and renewable nature. Agricultural byproducts and wastes are excellent alternative materials to supplement or substitute wood material as a reinforcement in composites.This comparative study focuses on the effects of the substitution of wood fiber with agro-basedfiber (barley straw) on the mechanical and physical properties of natural fiber/polypropylene composites. The studied mechanical properties are flexural strength and modulus, Brinell hardness and Charpy impact strength. Water absorption and thickness swelling are studied as physical properties. Generally, the research resultsindicate that almost all the studied properties weakened significantlyas woodwas substituted with barley straw.Ofmechanical properties, the major decrease wasobserved in hardness.However, the use of barley straw slightlyimproved impact strength.The moisture-related properties, water absorption and thickness swelling,which have a great impact on the durability of a composite material, weakened significantly.

The recycling of wood waste still offers a wide variety of opportunities. The possibilities for wood recycling depend mainly on the substances contained in wood waste; in particular, the recycling of impregnated wood waste, which contains environmentally harmful substances, is strictly regulated. Cement matrix composites could offer new potentials for the utilization of wood-waste fractions. The product safety of wood–cement composites, in terms of leaching and freeze-thaw resistance using de-icing salts, was investigated in this study. In a leaching test, low amounts of copper, chromium, and arsenic leached from a wood–cement composite were observed. The measured concentrations of the studied substances decreased over time. Freeze-thaw resistance of wood–cement composites was studied with four different additives typically used in concrete products. The highest resistance was obtained for the composite without any additives, but, in general, all the studied specimen, with one exception, performed relatively well. [ABSTRACT FROM AUTHOR]

The Geology Collection is part of the national collections of the Finnish Museum of Natural History Luomus. General principles and guidelines for the collections are defined in the General Collection Policy of Luomus. The Geology Collection Policy is subordinate to the General Collection Policy of Luomus, clarifying its content with reference to the special characteristics of the geological collections. The Geological Collection includes mineral, rock, and meteorite specimens worldwide and from all geologic ages to support Finnish research and educational projects. The coverage emphasizes specimens from Finland, Scandinavia, Africa, and Antarctica. The Geology Collection Policy defines the purpose of the collections, the objectives, the distribution of responsibilities for collection management and maintenance in the organisation, and the principles of collection accumulation, preservation, accessibility and use to public. [ABSTRACT FROM AUTHOR]

The Paleontological Collection (PalCo) is one of partial collections of the Finnish Museum of Natural History Luomus. General principles and guidelines for the collections are defined in the General Collection Policy of Luomus. The PalCo Policy is subordinate to the General Collection Policy of Luomus, clarifying its content with reference to the special characteristics of the paleontological collections. The PalCo includes fossil plant, invertebrate and vertebrate specimens worldwide in scope and from all geologic ages to support Finnish research and educational projects. The coverage emphasizes Paleozoic and Quaternary specimens from Finland, the Baltic countries and Scandinavia. The PalCo Policy defines the purpose of the collections, the objectives, the distribution of responsibilities for collection management and maintenance in the organisation, and the principles of collection accumulation, preservation, accessibility and use. [ABSTRACT FROM AUTHOR]

The Genomic Resources Collection is a separate, independently managed part of the natural history collections of the Finnish Museum of Natural History Luomus specifically intended for consumptive research. The GRC policy deals with the materials that are archived for the very purpose of enabling the study of biological diversity at the genome level, DNA extractions of animal, fungal and plant specimens, and animal tissue samples stored deep-frozen for purposes of future DNA extraction. The GRC policy defines the purpose of the collections, the objectives and content of the procedures and activities related to them, the distribution of responsibilities for collection management and maintenance in Luomus, and the principles of collection accumulation, preservation and accessibility. The aim of the GRC is to store and loan genomic samples for research purposes. In taxonomic coverage the collection overlaps with all the taxonomically delimited specimen collections managed by the Zoology and Botany Units, but is distinguished as being directed to preserve the genomic (DNA) information irrespective of the phenotypic variation that are the focus of specimen collections. The GRC includes both Finnish and foreign samples, all legally and ethically obtained, mostly linked to a specimen voucher in the taxonomic collections. The GRC samples are documented and trackable in Luomus collections management system. In accordance with the Universities Act, the GRC belongs to the national natural science collections of Luomus. For their part, the GRC collection implement the mission of Luomus, which is to be "responsible for the preservation, accumulation and exhibition of the national natural history collections and for research and education relating to them". [ABSTRACT FROM AUTHOR]