Search for dissertations about: "understory"
Showing result 1 - 5 of 16 swedish dissertations containing the word understory.
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1. Uptake of and Preference for Nitrate, Ammonium and Amino Acids by Understory Species in Deciduous Forests
Abstract : AbstractThe uptake of different nitrogen forms by understory species was studied in field and laboratory. Species of the understory in deciduous forests have previously been thought to take up and assimilate only inorganic nitrogen sources. READ MORE
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2. Management of urban woodlands - effects on bird communities and recreational values
Abstract : The ongoing urbanisation increases the pressure on urban nature. Urban woodlands are receiving growing attention as they provide valuable ecosystem services to urban citizens, mainly by providing areas for recreation but also through improving air quality and reducing noise. READ MORE
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3. Responses of boreal forest understory plant communities to climate and forestry
Abstract : A warming climate is altering species distributions and community compositions. To understand and predict changes in species distributions to climate change, we often use species occurrences together with large-scale regional climate data. This can be problematic for several reasons. READ MORE
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4. Microclimate at range margins : Consequences for boreal forest understory species
Abstract : A warmer climate will shift species distributional range margins poleward, but near-ground microclimates may modify these shifts. Cold-adapted northern species at their rear edge may survive locally in microrefugia with a colder microclimate, and warm-adapted southern species at their leading edge may colonize stepping stone habitats with a warmer microclimate. READ MORE
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5. Plant colonization of oak plantations - the interactive effects of local environment and land-use history
Abstract : In Europe, only small fragments of deciduous woodlands remain intact and species dependent on this ecosystem have declined. In southern Sweden, a shifting trend during the 20th century, with more afforestations on former arable land, resulted in new oak stands. These new stand are either on former arable fields or on continuously forested land. READ MORE