Soil microbial diversity and community structure across a climatic gradient in western Canada
Soil microbial functional diversity was assessed along a climatic gradient in Western Canada. Mineral soil samples were collected from jack pine (Pinus banksiana Lamb.) stands along an 800km transect between Prince Albert, Saskatchewan and Gillam, Manitoba. Microbial communities were isolated from t...
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| Veröffentlicht in: | Biodiversity and conservation 1998-08, Vol.7 (8), p.1081-1092 |
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| container_title | Biodiversity and conservation |
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| creator | Staddon, William J. Trevors, Jack T. Duchesne, Luc C. Colombo, Carol a. |
| description | Soil microbial functional diversity was assessed along a climatic gradient in Western Canada. Mineral soil samples were collected from jack pine (Pinus banksiana Lamb.) stands along an 800km transect between Prince Albert, Saskatchewan and Gillam, Manitoba. Microbial communities were isolated from the soil samples, washed and inoculated into wells of Gram-negative Biolog microplates. Optical density values were used to calculate Shannon diversity indices and to perform principal component analysis. Colour development rank plots (CDR) were created by expressing optical density values as a percentage of total colour development and plotting the wells in descending order. Soil microbial functional diversity decreased with increasing latitude and correlated positively with measures of atmospheric temperature and pH. Soil microbial diversity may be lower in northern sites due to decreased productivity, nutrient limitation and higher acidity. CDR plots are consistent with a trend of increasing environmental harshness moving north along the transect.[PUBLICATION ABSTRACT] |
| doi_str_mv | 10.1023/A:1008813232395 |
| format | Article |
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Mineral soil samples were collected from jack pine (Pinus banksiana Lamb.) stands along an 800km transect between Prince Albert, Saskatchewan and Gillam, Manitoba. Microbial communities were isolated from the soil samples, washed and inoculated into wells of Gram-negative Biolog microplates. Optical density values were used to calculate Shannon diversity indices and to perform principal component analysis. Colour development rank plots (CDR) were created by expressing optical density values as a percentage of total colour development and plotting the wells in descending order. Soil microbial functional diversity decreased with increasing latitude and correlated positively with measures of atmospheric temperature and pH. Soil microbial diversity may be lower in northern sites due to decreased productivity, nutrient limitation and higher acidity. 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| issn | 0960-3115 1572-9710 |
| language | eng |
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| source | Springer Nature - Complete Springer Journals |
| subjects | Acidity Atmospheric temperature Bacteria Community structure Diversity indices Microbial activity Pine trees Principal components analysis Soils |
| title | Soil microbial diversity and community structure across a climatic gradient in western Canada |
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