Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Northern ecosystems"”.
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Drivers of landscape evolution in northern ecosystems: Shrub expansion, vegetation-fire interaction, and permafrost degradation
As high-latitude ecosystems warm, key biogeophysical properties controlling ecosystem carbon and energy dynamics, such as plant community composition and permafrost stability may shift in response to novel climate regimes. In the tundra of northern and northwestern Alaska, some of the most profound …
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Evaluating impacts of hydroclimatic extremes on water use efficiency and carbon use efficiency of northern ecosystems
… integrity of terrestrial high-latitude ecosystems. As essential global water and carbon balance regulators, these sensitive ecosystems respond to increased warming and altered hydrology with modulated resource use efficiencies. This study aimed to investigate the impacts of various …
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Natural gradients in temperature and nitrogen: Iceland represents a unique environment to clarify long-term global change effects on carbon dynamics
… knowledge on potent feedback mechanisms from ecosystems to the climate system is limited. One such potentially powerful feedback mechanism is the warming-induced transfer of soil organic carbon (SOC) to the atmosphere, exacerbating the warming. This is especially true for high northern …
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Assessing cumulative human impacts on northern woodland caribou with traditional ecological knowledge and resource selection functions
… of human infrastructure development. The Atlin northern mountain herd, in the territory of the Taku River Tlingit First Nation (TRTFN), British Columbia, is less affected by development than southern herds. However, recent low productivity in this herd suggests that the impacts of development …
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Assessing cumulative human impacts on northern woodland caribou with traditional ecological knowledge and resource selection functions
… of human infrastructure development. The Atlin northern mountain herd, in the territory of the Taku River Tlingit First Nation (TRTFN), British Columbia, is less affected by development than southern herds. However, recent low productivity in this herd suggests that the impacts of development …
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Responses of boreal vegetation to recent climate change
The high northern latitudes have warmed faster than anywhere else in the globe during the past few decades. Boreal ecosystems are responding to this rapid climatic change in complex ways and some times contrary to expectations, with large implications for the global climate system. This thesis …