Nitrification in Antarctic soils
Article Abstract:
Marshall's explanation for the presence of pollen from trees considered foreign to Antarctica is used to account for the presence of bacteria in the region. Marshall believes that a specific weather pattern enabled exotic biological particles to be carried by the wind from South America to Antarctica. It is proposed that wind-borne dispersal of bacteria throughout the region may have occurred at the same time as wind-borne transfer of bacteria. The temperature in tested soils suggests that nitrifiers may not have originated in Antarctica.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Succeeding in the sand dunes
Article Abstract:
Soil-carried plant pathogens may cause plant species to succeed each other as dominant in sand dune ecology. W.H. Van der Putten and coworkers tested the supposition that disease-causing organisms that attack particular plant species could engender plant succession. Their results, showing that pathogens cause the marram grass Ammophila arenaria, the fescue Festuca rubra, the sand sedge Carex arenaria and the sea couch Elymus athericus to follow each other in turn, are impressive but not conclusive.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1993
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Nonlinearity and the Moran effect
Article Abstract:
Issues are presented concerning the synchronization phenomena which exist in two populations of feral sheep and their influence on extrinsic environmental variation and population dynamics.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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