Snag fall rates in Fennoscandian forests
Aakala, T., Jonsson, B. G., Korhonen, K. T. and Storaunet, K. O. (2018). Snag fall rates in Fennoscandian forests. 5th European Congress of Conservation Biology. doi: 10.17011/conference/eccb2018/107382
Päivämäärä
2018Tekijänoikeudet
© the Authors, 2018
Snags (standing dead trees) are an integral component of natural boreal forests, serving multiple functions, including habitat for a variety of dead wood-dependent organisms, and as a dynamic carbon storage. As a result of intensive and long-term use of forests in Finland, Norway and Sweden, the amount of snags has drastically decreased from the levels encountered in the natural forests. Consequently, increasing the amount of snags is one important aim when restoring habitat diversity in managed forests. However, current information on the dynamics of snags and most importantly how long do they remain standing is fragmentary. Earlier research that has suffered from limited by data availability, has revealed a wide range in standing times of snags. This range has been variably linked to different factors, including climatic and edaphic conditions of the site, the tree species or its size, but comprehensive, large scale efforts on assessing dynamics of snags have not been conducted so far. Understanding snag dynamics and the factors that drive this variability would be essential for predicting snag dynamics and more efficiently incorporating them into forest management.
In this study, we will compile a large dataset of snag survival and fall in Fennoscandia, combining Finnish, Norwegian and Swedish national forest inventory (NFI) measurements on permanent sample plots since the mid-1990s, when systematic dead wood measurements began in these inventories. Using this dataset, our aim is to analyze the rates of snag fall, and their variability as a function of the characteristics of the snag, the site it grew on, and the climate.
For this, we will harmonize the datasets from the inventories of the three different countries, to create a single dataset for modeling snag dynamics. In the Norwegian NFI, individual snags are tracked through time as part of the measurement protocol, but for the Finnish and the Swedish NFIs we will first develop a piece-matching algorithm to link trees measured at one time with trees measured at the next inventory. We will then use mixed effects models to analyze snag fall rates, and the factors influencing their variability. Here, we report the first results of these analyses.
...
Julkaisija
Open Science Centre, University of JyväskyläKonferenssi
ECCB2018: 5th European Congress of Conservation Biology. 12th - 15th of June 2018, Jyväskylä, Finland
Alkuperäislähde
https://peerageofscience.org/conference/eccb2018/107382/Metadata
Näytä kaikki kuvailutiedotKokoelmat
- ECCB 2018 [712]
Lisenssi
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Solving Conflicts among Conservation, Economic, and Social Objectives in Boreal Production Forest Landscapes : Fennoscandian Perspectives
Mönkkönen, Mikko; Burgas Riera, Daniel; Eyvindson, Kyle; Le tortorec, Eric; Peura, Maiju; Pohjanmies, Tähti; Repo, Anna; Triviño, María (Springer, 2018)This chapter discusses challenges and possibilities involved in preserving biological diversity and the diversity of ecosystem services in the boreal zone and yet at the same time maintaining intensive timber extraction ... -
Stable isotope data from Fennoscandian lakes collated in COLDWEBS project
Sandlund, Odd Terje; Jones, Roger; Amundsen, Per-Arne; Knudsen, Rune; Finstad, Anders; Byström, Pär; Karlsson, Jan; Helland, Ingeborg; Gjelland, Karl Øystein; Johnsen, Stein Ivar; Museth, Jon; Hesthagen, Trygve; Eloranta, Antti; Davidsen, Jan G.; Rognerud, Sigurd; Brabrand, Åge (2022)This dataset is collected and compiled by numerous partners in the COLDWEBS project (see project details below). The data includes information about the study locations (i.e., lakes in Norway, Sweden and Finland) and samples ... -
Abiotic and biotic controls on methane formation down to 2.5 km depth within the Precambrian Fennoscandian Shield
Kietäväinen, Riikka; Ahonen, Lasse; Niinikoski, Paula; Nykänen, Hannu; Kukkonen, Ilmo T. (Pergamon Press; Geochemical Society, 2017)Despite a geological history characterised by high temperature and pressure processes and organic carbon deprived crystalline bedrock, large amounts of hydrocarbons are found in deep groundwaters within Precambrian continental ... -
Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) differ in their suitability as hosts for the endangered freshwater pearl mussel (Margaritifera margaritifera) in northern Fennoscandian rivers
Salonen, Jouni; Luhta, Pirkko-Liisa; Moilanen, Eero; Oulasvirta, Panu; Turunen, Jarno; Taskinen, Jouni (Blackwell Scientific, 2017)1. European populations of the freshwater pearl mussel (FPM, Margaritifera margaritifera) have widely collapsed, and despite many types of conservation actions the number of successful restoration trials has remained ... -
Voles and weasels in the boreal Fennoscandian small mammal community : What happens if the least weasel disappears due to climate change?
Ylönen, Hannu; Haapakoski, Marko; Sievert, Thorbjörn; Sundell, Janne (Wiley-Blackwell Publishing Ltd., 2019)Climate change, habitat loss and fragmentation are major threats for populations and a challenge for individual behavior, interactions and survival. Predator–prey interactions are modified by climate processes. In the ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.