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个人简介
Diana Wall works on soil biodiversity and ecosystem functioning in any ecosystems. She works at the physical limits to life in the Antarctic dry valleys where climate change effects are amplified and species diversity is much reduced compared to other soil ecosystems. Across these ice-free ecosystems, she and her colleagues showed that soil nematodes—microscopic worms— represent the top of the terrestrial food chain. One species, Scottnema lindsayae, had a surprisingly broad distribution and high abundance in drier, more saline soils, than other less abundant species found in aquatic systems (e.g, glacial meltstreams. This knowledge on habitat preference can be used to help predict how species and ecosystems might respond to climate change.
Wall’s more than 25 years of research in the Antarctic continues to clarify the critical links between climate change and soil biodiversity. Her interdisciplinary research with the McMurdo Dry Valley LTER has uncovered dramatic impacts to invertebrate communities in response to climate change, the key role nematode species play in soil carbon turnover, and how they survive such extreme environments. A 20-year long-term field project on climate change is revealing that with increased carbon sources, warming and water events, the dominant, physiologically tough Scottnema species that preys on soil bacteria across the dry landscape (also referred to as the “lion of the McMurdo dry valleys”) declined while others increased. By altering the soil physical and chemical habitat through increased moisture, warming for the future creates a more homogenous soil community with unknown effects on soil carbon turnover rates, a fundamentally important ecosystem process. Wall has combined her polar research with global scale field studies demonstrating that soil animals increase decomposition rates more in temperate and moist tropical climates than in cold and dry conditions, indicating a latitudinal gradient in their roles in ecosystems.
Wall’s more than 25 years of research in the Antarctic continues to clarify the critical links between climate change and soil biodiversity. Her interdisciplinary research with the McMurdo Dry Valley LTER has uncovered dramatic impacts to invertebrate communities in response to climate change, the key role nematode species play in soil carbon turnover, and how they survive such extreme environments. A 20-year long-term field project on climate change is revealing that with increased carbon sources, warming and water events, the dominant, physiologically tough Scottnema species that preys on soil bacteria across the dry landscape (also referred to as the “lion of the McMurdo dry valleys”) declined while others increased. By altering the soil physical and chemical habitat through increased moisture, warming for the future creates a more homogenous soil community with unknown effects on soil carbon turnover rates, a fundamentally important ecosystem process. Wall has combined her polar research with global scale field studies demonstrating that soil animals increase decomposition rates more in temperate and moist tropical climates than in cold and dry conditions, indicating a latitudinal gradient in their roles in ecosystems.
研究兴趣
论文共 356 篇作者统计合作学者相似作者
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Monica Farfan,Carlos Guerra,Katarina Hedlund,María Ingimarsdóttir, Edmundo Barrios, Neil Cox, Anders Dahlberg,Manuel Delgado-Baquerizo,Nico Eisenhauer, Maria Lundesjö,Alberto Orgiazzi, J. Parnell,
Soils for Europe (2024)
POLAR BIOLOGYno. 5 (2023): 461-471
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作者统计
#Papers: 356
#Citation: 58587
H-Index: 84
G-Index: 241
Sociability: 8
Diversity: 0
Activity: 2
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