@article{fdi:010060215, title = {{P}opulation dynamics of canopy trees in {N}ew {C}aledonian rain forests : are monodominant {N}othofagus ({N}othofagaceae) forests successional to mixed rain forests ?}, author = {{R}ead, {J}. and {J}affr{\'e}, {T}anguy}, editor = {}, language = {{ENG}}, abstract = {{I}n {N}ew {C}aledonia, rain forests with an upper canopy dominated by single species of {N}othofagus occur next to mixed-canopy forests, without discernible environmental cause. {A} potential explanation is that they are different successional stages. {T}o test this hypothesis and predict long-term change in canopy dominance, population size structures of 61 canopy species were analysed in six {N}othofagus-dominated forests and three adjacent mixed rain forests. {W}eibull analysis suggests that these {N}othofagus forests are secondary forests, with recruitment insufficient to maintain monodominance, except at a high-altitude site. {A}t low- to mid-altitudes the {N}othofagus canopy is predicted to develop into amixed canopy, unlessmoderate to severe disturbance occurs within its reproductive lifespan. {H}owever, adjacent mixed rain forests are also secondary, with 85% of analysed species showing no evidence of continuous regeneration. {F}ifteen species from both forest types showed reverse-{J} curves suggesting continuous regeneration, but only {C}alophyllum caledonicum did so consistently. {S}ince few canopy species showed evidence of high shade tolerance and persistence, a small number of shade-tolerant species is predicted to dominate both forests in the long term, in the hypothetical absence of disturbance. {H}ence, temporal factors associated with disturbances play a key role in determining dominance in these forests.}, keywords = {{FORET} {SECONDAIRE} ; {ARBRE} {FORESTIER} ; {CANOPEE} {FORESTIERE} ; {DOMINANCE} ; {DYNAMIQUE} {DE} {POPULATION} ; {STRUCTURE} {DE} {POPULATION} ; {REGENERATION} ; {DENSITE} {DE} {POPULATION} ; {EVOLUTION} ; {CYCLONE} {TROPICAL} ; {ALTITUDE} ; {TAILLE} ; {FEU} ; {ANALYSE} {DE} {COHORTES} ; {NOUVELLE} {CALEDONIE} ; {ZONE} {TROPICALE} {HUMIDE}}, booktitle = {}, journal = {{J}ournal of {T}ropical {E}cology}, volume = {29}, numero = {5}, pages = {485--499}, ISSN = {0266-4674}, year = {2013}, DOI = {10.1017/{S}0266467413000576}, URL = {https://www.documentation.ird.fr/hor/fdi:010060215}, }