Is earthworms' dispersal facilitated by the ecosystem engineering activities of conspecifics? - Bioemco
Article Dans Une Revue Biology and Fertility of Soils Année : 2012

Is earthworms' dispersal facilitated by the ecosystem engineering activities of conspecifics?

Résumé

In this work, we documented the influence of earthworm's galleries on their speed of movements during dispersal events in the soil. We quantified, by using X-rays, the dispersal behaviour of earthworms in the soil. The observations were conducted in mesocosms in controlled conditions for 12 h. Our experiments revealed that during a dispersal sequence of a batch of individuals of the species Aporrectodea terrestris (Savigny 1826): (a) individuals used preferentially existing conspecifics' galleries, (b) individual velocity increased after each dispersal event and (c) the lag time before each dispersal event did not seem to be influenced by previous dispersers. Therefore, dispersal seems to be facilitated by conspecifics' activity, which strongly supports the hypothesis of a feedback between ecosystem engineers' activity and their dispersal speed
Fichier principal
Vignette du fichier
Manuscript_BFSO-D-12-00034-_revised_V2.pdf (223.58 Ko) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

bioemco-00712684 , version 1 (27-06-2012)

Identifiants

Citer

Gael Caro, Anick Abourachid, Thibaud Decaens, Lorenza Buono, Jérôme Mathieu. Is earthworms' dispersal facilitated by the ecosystem engineering activities of conspecifics?. Biology and Fertility of Soils, 2012, pp.Online. ⟨10.1007/s00374-012-0694-1⟩. ⟨bioemco-00712684⟩
275 Consultations
481 Téléchargements

Altmetric

Partager

More