@article{fdi:010076576, title = {{L}ong-term influence of early human occupations on current forests of the {G}uiana {S}hield}, author = {{O}donne, {G}. and {V}an den {B}el, {M}. and {B}urst, {M}. and {B}runaux, {O}. and {B}runo, {M}. and {D}ambrene, {E}. and {D}avy, {D}. and {D}esprez, {M}. and {E}ngel, {J}ulien and {F}erry, {B}. and {F}reycon, {V}. and {G}renand, {P}. and {J}eremie, {S}. and {M}estre, {M}. and {M}olino, {J}ean-{F}ran{\c{c}}ois and {P}etronelli, {P}. and {S}abatier, {D}aniel and {H}ermit, {B}.}, editor = {}, language = {{ENG}}, abstract = {{T}o decipher the long-term influences of pre-{C}olumbian land occupations on contemporary forest structure, diversity, and functioning in {A}mazonia, most of the previous research focused on the alluvial plains of the major rivers of the {A}mazon basin. {T}erra firme, that is, nonflooded forests, particularly from the {G}uiana {S}hield, are yet to be explored. {I}n this study, we aim to give new insights into the subtle traces of pre-{C}olumbian influences on present-day forests given the archaeological context of terra firme forests of the {G}uiana {S}hield. {F}ollowing archaeological prospects on 13 sites in {F}rench {G}uiana, we carried out forest inventories inside and outside archaeological sites and assessed the potential pre-{C}olumbian use of the sampled tree species using an original ethnobotanical database of the {G}uiana {S}hield region. {A}boveground biomass (320 and 380 {T}/ha, respectively), basal area (25-30 and 30-35 m(2)/ha, respectively), and tree density (550 and 700 stem/ha, respectively) were all significantly lower on anthropized plots ({A}s) than on nonanthropized plots ({NA}s). {A}ncient human presence shaped the species composition of the sampled forests with {A}recaceae, {B}urseraceae, and {L}auraceae significantly more frequent in {A}s and {A}nnonaceae and {L}ecythidaceae more frequent in {NA}s. {A}lthough alpha diversity was not different between {A}s and {NA}s, the presence of pre-{C}olumbian sites enhances significantly the forest beta diversity at the landscape level. {F}inally, trees with edible fruits are positively associated with pre-{C}olumbian sites, whereas trees used for construction or for their bark are negatively associated with pre-{C}olumbian sites. {H}alf a millennium after their abandonment, former occupied places from the inner {G}uiana {S}hield still bear noticeable differences with nonanthropized places. {C}onsidering the lack of data concerning archaeology of terra firme {A}mazonian forests, our results suggest that pre-{C}olumbian influences on the structure (lower current biomass), diversity (higher beta diversity), and composition (linked to the past human tree uses) of current {A}mazonian forests might be more important than previously thought.}, keywords = {{A}mazonian forest ; archaeology ; ethnobotany ; {G}uiana {S}hield ; historical ecology ; pre-{C}olumbian settlements ; ring-ditched hills ; {GUYANE} {FRANCAISE} ; {AMAZONIE}}, booktitle = {}, journal = {{E}cology}, volume = {100}, numero = {10}, pages = {e02806 [14 ]}, ISSN = {0012-9658}, year = {2019}, DOI = {10.1002/ecy.2806}, URL = {https://www.documentation.ird.fr/hor/fdi:010076576}, }