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Temperature Response of Soil Organic Matter Decomposition Rates: Construction and Applications of a Temperature Gradient Block
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Temperature-based bioclimatic parameters can predict nematode metabolic footprints.

Daya Ram Bhusal1, Maria A Tsiafouli, Stefanos P Sgardelis

  • 1Central Department of Zoology, Institute of Science and Technology, Tribhuvan University, Kirtipur, Kathmandu, Nepal.

Oecologia
|April 23, 2015
PubMed
Summary

Nematode metabolic footprints (MFs) can be predicted using temperature-based bioclimatic parameters. This upscaling method allows for landscape-level estimation of soil carbon metabolism and ecosystem services.

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Area of Science:

  • Soil Ecology
  • Biogeochemistry
  • Ecosystem Services

Background:

  • Nematode metabolic footprints (MFs) link soil food webs to ecosystem services.
  • Upscaling MFs from soil samples to landscapes is crucial for management.
  • Temperature influences nematode life processes and carbon metabolism.

Purpose of the Study:

  • To explore predicting nematode MFs using temperature-based bioclimatic parameters.
  • To assess the feasibility of upscaling MFs across a landscape.
  • To understand temperature's role in nematode carbon metabolism variations.

Main Methods:

  • Collected microclimate data over one year across sites with varying orientation, altitude, and vegetation.
  • Estimated MFs for different nematode trophic groups at these sites.
  • Developed models correlating bioclimatic parameters with nematode MFs.

Main Results:

  • Bioclimatic parameters, especially temperature variations and extremes, significantly predicted MFs.
  • High seasonality and low isothermality correlated with higher fungivorous and lower bacterivorous MFs.
  • High seasonality also predicted higher plant-parasitic MFs, indicating landscape-level food web shifts.

Conclusions:

  • Temperature-based bioclimatic parameters effectively predict nematode MFs.
  • Upscaling nematode bioindication potential is feasible for landscape-level soil ecology.
  • This approach offers new insights into soil carbon metabolism and ecosystem functions.