@article{fdi:010054302, title = {{S}pecies diversity and growth forms in tropical american palm communities}, author = {{B}alslev, {H}. and {K}ahn, {F}rancis and {M}illan, {B}. and {S}venning, {J}.{C}. and {K}ristiansen, {T}. and {B}orchsenius, {F}. and {P}edersen, {D}. and {E}iserhardt, {W}.{L}.}, editor = {}, language = {{ENG}}, abstract = {{T}o advance our understanding of the processes that govern the assembly of palm communities and the local coexistence of numerous palm species, we here synthesize available information in the literature on species diversity and growth-form composition in palm communities across the {A}mericas. {A}merican palm communities surveyed had 4-48 (median 16) species in study plots covering 0.09-7.2 ha. {C}limate, soils, hydrology, and topography are the main factors determining palm community species richness. {T}ropical lowland terra firme rain forests are the most species-rich whereas forests that are inundated or grow on sandy soils or in areas with seasonal climate have much fewer species. {P}alm communities in the central-western {A}mazon and in {C}entral {A}merica are significantly richer than the average region and those in the {C}aribbean significantly poorer in species. {A}s for branching, the 789 species of tropical {A}merican palms belong to {C}orner's model (solitary, 268 species, 33%), {T}omlinsons model (cespitose, 521 species, 66%) and {S}choute's model (dichotomous branching, three species, < 1%). {W}e assigned the species to eight different growth forms: (i) {L}arge tall-stemmed {P}alms (102 spp), (ii) {L}arge-leaved medium-short-stemmed {P}alms (31 spp), (iii) {M}edium-sized {P}alms (95 spp), (iv) {M}edium/{S}mall {P}alms with {S}tout {S}tem (42 spp), (v) {S}mall {P}alms (423 spp), (vi) {L}arge acaulescent {P}alms (28 spp), (vii) {S}mall acaulescent {P}alms (56 spp), and (viii) {C}limbing {P}alms (12 spp). {T}he eight growth forms are differently represented in the palm communities, and the categories {S}mall {P}alms and {L}arge tall-stemmed {P}alms dominate the communities both in terms of species richness and in number of individuals.}, keywords = {{A}mazon ; {A}recaceae ; {F}unctional {D}iversity ; {H}abitat {S}pecialization ; {P}almae ; {S}pecies {R}ichness ; {T}ropical {F}orest ; {T}ropical {T}rees ; {AMAZONIE} ; {AMERIQUE} {CENTRALE} ; {CARAIBE}}, booktitle = {}, journal = {{B}otanical {R}eview}, volume = {77}, numero = {4}, pages = {381--425}, ISSN = {0006-8101}, year = {2011}, DOI = {10.1007/s12229-011-9084-x}, URL = {https://www.documentation.ird.fr/hor/fdi:010054302}, }