@article{fdi:010091938, title = {{I}nteraction between anecic and polyhumic endogeic earthworms can lead to synergistic effects on soil functioning}, author = {{P}ham, {Q}. {V}. and {D}anga, {H}. {X}. and {N}guyen, {A}. {D}. and {C}apowieze, {Y}. and {J}ouqueta, {P}. and {T}ranb, {T}. {M}. and {R}umpel, {C}. and {B}ottinelli, {N}icolas}, editor = {}, language = {{ENG}}, abstract = {{U}sing a mesocosm experiment, we investigated the individual and interaction effects of two earthworm species with contrasting behaviour on soil structure and water transfers. {T}he anecic species {A}mynthas zenkevichi ({T}hai, 1982) and the polyhumic endogeic species {P}ontoscolex corethrurus ({M}üller, 1857) were incubated in repacked soil columns alone or together for three months under laboratory conditions. {T}he volume of belowground casts, empty burrows and lateral soil compaction were assessed using {X}-ray computed tomography. {T}he production of surface casts and the amount of food ingested were also recorded. {T}he soil moisture at 7 cm depth and water evaporation of the whole column were monitored regularly. {S}oil water infiltration was assessed using the {B}eerkan method at the end of the experiment. {A}. zenkevichi burrows were less numerous (25 vs. 85), more continuous (41 vs. 0 cm3), 3 ), more connected from the surface to the bottom of the columns (17 vs. 0 cm3) 3 ) and more compacted laterally (243 vs. 92 cm3) 3 ) than those of {P}. corethrurus. . {C}onversely, {P}. corethrurus burrows were more abundant in the top 5 cm of the columns and more backfilled by casts than those of {A}. zenkevichi (36 vs. 5 %). {B}oth species ingested buffalo dung provided at the soil surface and produced surface casts at similar rates. {I}nteractions resulted in an increase in surface activity of more than 40 % and a decrease in the depth and continuity of burrow systems. {T}he water infiltration rate was increased by 3.5 times (compared to the control soil without earthworms) by {A}. zenkevichi burrows and was not modified by interactions. {P}. corethrurus increased the cumulative water evaporation by 10 % and decreased soil moisture by 3 % (compared to the control soil without earthworms), whereas {A}. zenkevichi had marginal effects on these parameters. {G}lobally, interactions led to a slight positive synergistic effect on soil resistance to water loss by evaporation, which was likely related to the increase in surface casting activity. {T}o conclude, this study stresses the importance of considering interactions between earthworms in soil and the need to confirm our findings under natural conditions.}, keywords = {{B}ioturbation ; {I}ntraspecific interactions ; {D}rilosphere ; {VIET} {NAM}}, booktitle = {}, journal = {{A}pplied {S}oil {E}cology}, volume = {200}, numero = {}, pages = {105438 [8 p.]}, ISSN = {0929-1393}, year = {2024}, DOI = {10.1016/j.apsoil.2024.105438}, URL = {https://www.documentation.ird.fr/hor/fdi:010091938}, }