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Horizontal Distribution of an Earthworm Community at El Molar, Madrid (Spain)

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Hernández Gordo, Patricia and Gutiérrez López, Mónica and Ramajo Matesanz, Marta and Trigo Aza, María Dolores and Díaz Cosín, Darío J. (2003) Horizontal Distribution of an Earthworm Community at El Molar, Madrid (Spain). Pedobiologia, 5-6 (47). pp. 568-53.

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Abstract

The earthworm community in El Molar (Madrid) is studied, and its distribution patterns and relation with some soil factors are described by using geostatistic and multivariate tools. Six species were found, Hormogaster elisae, Allolobophora rosea and Allolobophora caliginosa being the three most abundant ones. These speciesexhibited a clumped distribution. The most dominant species, H. elisae, was distributed in patches of an average size of 45m in spring and more than 100m inautumn. A. rosea was aggregated in patches of an average size of 22m and A. caliginosa formed patches of an average size of 38 m. There seemed to be a positive correlation between the abundance of H. elisae and the percentage of total and coarse sands, as well as a negative correlation with clay, nitrogen, carbon and coarse loams contents, opposite to what was observed for A. rosea.


Item Type:Article
Uncontrolled Keywords:Earthworms; Horizontal distribution; Soil factors; Aggregation
Subjects:Medical sciences > Biology > Invertebrates
Medical sciences > Biology > Zoology
ID Code:6015
Deposited On:29 Dec 2006
Last Modified:10 Dec 2018 15:25

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