@article{fdi:010062599, title = {{P}lant clonal morphologies and spatial patterns as self-organized responses to resource-limited environments}, author = {{C}outeron, {P}ierre and {A}nthelme, {F}abien and {C}lerc, {M}. and {E}scaff, {D}. and {F}ernandez-{O}to, {C}. and {T}lidi, {M}.}, editor = {}, language = {{ENG}}, abstract = {{W}e propose here to interpret and model peculiar plant morphologies (cushions and tussocks) observed in the {A}ndean {A}ltiplano as localized structures. {S}uch structures resulting in a patchy, aperiodic aspect of the vegetation cover are hypothesized to self-organize thanks to the interplay between facilitation and competition processes occurring at the scale of basic plant components biologically referred to as 'ramets'. ({R}amets are often of clonal origin.) {T}o verify this interpretation, we applied a simple, fairly generic model (one integro-differential equation) emphasizing via {G}aussian kernels non-local facilitative and competitive feedbacks of the vegetation biomass density on its own dynamics. {W}e show that under realistic assumptions and parameter values relating to ramet scale, the model can reproduce some macroscopic features of the observed systems of patches and predict values for the inter-patch distance that match the distances encountered in the reference area ({S}ajama {N}ational {P}ark in {B}olivia). {P}rediction of the model can be confronted in the future with data on vegetation patterns along environmental gradients so as to anticipate the possible effect of global change on those vegetation systems experiencing constraining environmental conditions.}, keywords = {{A}ndes ; intraspecific interactions ; localized structures ; morphogenesis ; plant architecture ; symmetry-breaking instability ; {ANDES} ; {BOLIVIE}}, booktitle = {}, journal = {{P}hilosophical {T}ransactions of the {R}oyal {S}ociety {A} : {M}athematical {P}hysical and {E}ngineering {S}ciences}, volume = {372}, numero = {2027}, pages = {art. 20140102 [17 ]}, ISSN = {1364-503{X}}, year = {2014}, DOI = {10.1098/rsta.2014.0102}, URL = {https://www.documentation.ird.fr/hor/fdi:010062599}, }