Essays about: "beech"

Showing result 6 - 10 of 83 essays containing the word beech.

  1. 6. Effect of tree age on masting signal in tree-ring chronologies of beech in southern Sweden

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Jeppe Van Der Lee; [2023]
    Keywords : beech; masting; masting signal; proxy; tree-ring chronologies; age; dominance; social position; southern Sweden; climate change; tree growth; regeneration success;

    Abstract : Masting is a synchronous and highly variable production of seeds in tree species. Masting may reflect a reproduction strategy to cope with seed predation. In beech, temperature is the cue controlling annual variability in seeding. Masting behaviour in beech typically begins around the age of 40 years. READ MORE

  3. 7. Utilisation of hardwood in cross-laminated timber - A numerical study on vibrations in floors

    University essay from Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

    Author : Johannes Jonasson; Olle Karlsson; [2022]
    Keywords : hardwood; birch; beech; clt; cross-laminated timber; vibrations; floors; footfall; accelerations; Technology and Engineering;

    Abstract : Cross-laminated timber (CLT) is an engineered wood product consisting of several layers of laminations bonded together with adhesives. In contrast to heavier construction materials, timber and other lightweight building materials are more prone to serviceability issues due to vibrations. READ MORE

  4. 8. Temporal, climatic and spatial variation in the distribution and activity patterns of the raccoon (Procyon lotor) in Hainich National Park, Germany

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Maria Grüneberger; [2022]
    Keywords : raccoon; procyon lotor; hainich National Park; canopy Walk; camera trapping; nocturnality; ground temperature; habitat preference; european beech; fagus sylvatica; anthropogenic influence;

    Abstract : The raccoon (Procyon lotor) has been a part of German fauna since the 1920s, following a number of releases and escapes from captivity. This study intends to investigate the distribution and activity patterns of this non-native mesopredator in Hainich National Park, which lies in Central Germany, in-between 3 core areas of established raccoon populations. READ MORE

  5. 9. Mapping edge vegetation in connection to beech forest to locate potential habitats for red-listed beetles in Scania, Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Lovisa Rosenquist Ohlsson; [2022]
    Keywords : forest; temperate broadleaved forest; beech; biodiversity; edge vegetation; southern Sweden; Scania; beetles; Natura 2000; Fagus sylvatica; Stictoleptura scutellata; Ischnomera sanguinicollis; Earth and Environmental Sciences;

    Abstract : The number of species classified as red-listed has increased by 11% between 2015 and 2020, with beetles and butterflies being especially affected. Among these are the vulnerable longhorned beetle (Stictoleptura scutellata) and the endangered false blister beetle (Ischnomera sanguinicollis). READ MORE

  6. 10. Elemental variability in tree-rings as indicator for climate change : a case study on beech and oak trees at the Laacher See, Germany

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Ann-Kathrin Wild; [2022]
    Keywords : trace elements; tree-rings; dendrochemistry; dendroclimatology; ITRAX; Laacher See; mofettes; tree-bark; Quercus sp.; Fagus sp.;

    Abstract : The aim of this study was to contribute to the comprehension of the connection of element uptake in trees at the Laacher See in Germany and climatic parameters on different time scales. Understanding the relationship of certain elements in trees and temperature might enable the assignment of extraordinary high peaks in the elemental concentration, which cannot be explained by temperature, to another process as CO2 degassing of the mofettes, which are relics of the volcanic past of the lake. READ MORE