Influence of agricultural practices on arthropod communities in a vertisol (Martinique) |
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Authors: | Gladys Loranger,Jean-Franç ois Ponge,É ric Blanchart,Patrick Lavelle |
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Affiliation: | aLaboratoire d'écologie des sols tropicaux, IRD/université Paris-VI, 32, avenue Henri-Varagnat, 93143 Bondy, France;bLaboratoire d'écologie générale, Muséum national d'histoire naturelle, 4, avenue du Petit-Château, 91800 Brunoy, France;cLaboratoire de biologie et d'organisation des sols tropicaux, IRD, B.P. 8006, 97259 Fort-de-France, Martinique, France |
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Abstract: | The influence of human activities on soil arthropods of vertisols was assessed in several plots characterized by different land uses in the south-eastern part of Martinique (French West Indies). Abundance and diversity of soil invertebrate groups and collembolan species were measured in a 40-year-old secondary forest, a 15-year-old fallow, a 4-year-old fallow, a 4-year-old pasture, a 15-year-old pasture and a 20-year-old market-garden. Agricultural practices modified abundance and species distribution of soil arthropods, compared to forest. Arthropod richness (number of taxa present) decreased from forest to market-garden, according to a gradient of intensification of agricultural use (pesticides, tillage, weed control). In the old pasture, the arthropod diversity was lower in spite of a high carbon content. Species richness of Collembola decreased together with plant diversity and water availability. |
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Keywords: | Author Keywords: Soil arthropods Collembola agricultural practices biodiversity |
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