@article{fdi:010065291, title = {{M}orphological and functional characterisation of the burrow systems of six earthworm species ({L}umbricidae)}, author = {{C}apowiez, {Y}. and {B}ottinelli, {N}icolas and {S}ammartino, {S}. and {M}ichel, {E}. and {J}ouquet, {P}ascal}, editor = {}, language = {{ENG}}, abstract = {{E}arthworm burrow systems are generally described based on postulated behaviours associated with the three ecological types. {I}n this study, we used {X}-ray tomography to obtain 3{D} information on the burrowing behaviour of six very common anecic ({A}porrectodea nocturna and {L}umbricus terrestris) and endogeic ({A}porrectodea rosea, {A}llolobophora chlorotica, {A}porrectodea caliginosa, {A}porrectodea icterica) earthworm species, introduced into repacked soil cores for 6 weeks. {A} simple water infiltration test, the {B}eerkan method, was also used to assess some functional properties of these burrow systems. {E}ndogeic worms make larger burrow systems, which are more highly branched, less continuous and of smaller diameter, than those of anecic worms. {A}mong the anecic species, {L}. terrestris burrow systems are shorter (9.2 vs 21.2 m) with a higher number (14.5 vs 23.5) of less branched burrows (12.2 vs 20.2 branches m(-1)), which are also wider (7.78 vs 5.16 mm) than those of {A}. nocturna. {I}n comparison, the burrow systems made by endogeic species appeared similar to each other. {H}owever, {A}. rosea burrows were short and narrow, whereas {A}. icterica had a longer burrow system (15.7 m), more intense bioturbation intensity (refilled macropores or soil lateral compaction around them) and thus a greater number of burrows. {R}egarding water infiltration, anecic burrow systems were far more efficient due to open burrows linking the top and bottom of the cores. {F}or endogeic species, we observed a linear relationship between burrow length and the water infiltration rate ({R} (2) = 0.49, p < 0.01). {O}verall, the three main characteristics significantly influencing water infiltration were burrow length, burrow number and bioturbation volume. {T}his last characteristic highlighted the effect of burrow refilling by casts.}, keywords = {{W}ater infiltration ; {M}acropores ; {B}ioturbation ; {A}porrectodea icterica ; {L}umbricus terrestris ; {A}porrectodea caliginosa ; {FRANCE}}, booktitle = {}, journal = {{B}iology and {F}ertility of {S}oils}, volume = {51}, numero = {7}, pages = {869--877}, ISSN = {0178-2762}, year = {2015}, DOI = {10.1007/s00374-015-1036-x}, URL = {https://www.documentation.ird.fr/hor/fdi:010065291}, }