@article{fdi:010086370, title = {{S}patial patterns of a savanna palm tree {B}orassus aethiopum and its temporal variability}, author = {{T}raore, {A}. {S}. and {K}ouassi, {K}. {I}. and {K}one, {M}. and {G}ignoux, {J}. and {B}arot, {S}{\'e}bastien}, editor = {}, language = {{ENG}}, abstract = {{T}he spatial distributions and associations of plant species in a stand can provide essential information about their dynamics. {H}owever, since tree spatial distribution and association depend on factors that operate at different scales, disentangling the effects of environmental heterogeneity and plant-plant interactions requires the choice of a suitable null model for spatial analysis. {W}e analyzed the spatial distributions of the same savanna palm tree populations that were studied, the underlying hypothesis being that these distributions have changed in 20 years. {T}o remove the effect of large-scale environmental heterogeneity, the inhomogeneous {L}-function under the heterogeneous {P}oisson null model was used. {W}e showed: (i) unlike 20 years ago, adults had a regular distribution instead of an aggregated distribution in the grass savanna; (ii) although the spatial distribution of seedlings and juveniles was always aggregated, we observed a decrease in the size of the aggregates (intensities); (iii) except for juveniles, no other stages were associated with nutrient-rich patches, which was also different 20 years ago; (iv) we did not observe any particular difference in structure between two study sites, only that female palm trees were spatially associated with entire-leafed seedlings in the reserve while they were spatially independent in the rural area. {O}ur study supports the hypothesis that the spatial distributions have partially changed, and that the management of spatial heterogeneity has improved and given more precision in the results.}, keywords = {spatial heterogeneity ; palm trees ; heterogeneous {P}oisson ({HP}) null ; model ; spatial distribution ; spatial association ; {L}amto reserve ; {COTE} {D}'{IVOIRE} ; {LAMTO} {RESERVE}}, booktitle = {}, journal = {{J}ournal of {P}lant {E}cology}, volume = {15}, numero = {5}, pages = {1049--1064}, ISSN = {1752-9921}, year = {2022}, DOI = {10.1093/jpe/rtac029}, URL = {https://www.documentation.ird.fr/hor/fdi:010086370}, }