@article{fdi:010048389, title = {{D}ecreasing fallow duration in tropical slash-and-burn agriculture alters soil macro invertebrate diversity : a case study in southern {F}rench {G}uiana}, author = {{R}ossi, {J}. {P}. and {C}elini, {L}. and {M}ora, {P}. and {M}athieu, {J}{\'e}r{\^o}me and {L}apied, {E}. and {N}ahmani, {J}. and {P}onge, {J}.{F}. and {L}avelle, {P}atrick}, editor = {}, language = {{ENG}}, abstract = {{I}n the humid tropics, slash-and-burn cultivation causes changes in the composition of soil biota communities. {W}e investigated the soil macroinvertebrates (body length >= 2 mm) in five sites, two at {M}aripasoula, an {A}luku village along the {M}aroni river ({F}rench {G}uiana), with short fallow (approximate to 8 years), and the other three at {E}lahe, a {W}ayana village along the same river, with long fallow (approximate to 25 years). {W}e report observed species richness, the corresponding estimates by bootstrap and its associated standard deviation. {A}t both sites the cultivation led to impoverished communities. {T}he overall observed species richness {L}e. gamma diversity was ca. twice as larger in {E}lahe than in {M}aripasoula. {T}he landscape at {M}aripasoula was dominated by highly disturbed areas with the direct consequence that local species richness relied on colonization from an impoverished regional species pool. {O}n the contrary, in {E}lahe, crops formed small patches scattered across a landscape essentially constituted of rich undisturbed or slightly disturbed forests hence higher gamma diversity. {T}he proportion of rare species ranged from 44% to 54%. {W}e found 6 indicator species amongst which 5 were associated to the old secondary forest in {E}lahe and one, the earthworm {P}ontoscolex corethrurus was associated to crop fields in {M}aripasoula (short fallow system). {R}esults are discussed in a landscape context in terms of conservation and management of soil macrofaunal diversity in agro-ecosystems.}, keywords = {{S}oil macrofauna ; {S}pecies richness ; {S}lash-and-burn agriculture ; {A}griculture intensification ; {L}andscape ; {B}iodiversity}, booktitle = {}, journal = {{A}griculture {E}cosystems and {E}nvironment}, volume = {135}, numero = {1-2}, pages = {148--154}, ISSN = {0167-8809}, year = {2010}, DOI = {10.1016/j.agee.2009.08.012}, URL = {https://www.documentation.ird.fr/hor/fdi:010048389}, }