@article{fdi:010079143,
  title = {{M}ultiple stable dominance states in the {C}ongo basin forests},
  author = {{K}atembo, {J}. {M}. and {L}ibalah, {M}. {B}. and {B}oyemba, {F}. {B}. and {D}auby, {G}illes and {B}arbier, {N}icolas},
  editor = {},
  language = {{ENG}},
  abstract = {{U}nderstanding the dynamics of dominant tree species in tropical forests is important both for biodiversity and carbon-related issues. {W}e focus on the {C}ongo {B}asin ({E}ast of {K}isangani) to investigate the respective roles of topographic/soil gradients and endogenous dynamics in shaping local variations in dominance. {W}e used a dataset of 30 1-ha plots, in which all trees above 10 cm diameter at breast height ({DBH}) were censused. {S}oil samples were analyzed for standard pedologic variables and a digital elevation model permitted to infer topography and hydromorphy. {W}e found that this forest is characterized by variations in the abundance of three dominant species:{P}etersianthus macrocarpus({P}.{B}eauv.) {L}iben ({PM}),{G}ilbertiodendron dewevrei({D}e {W}ild.) {J}.{L}eonard ({GD}) and{J}ulbernardia seretii({D}e {W}ild.) {T}roupin ({JS}). {T}hese variations occur independently of substratum or topography variations. {A}t plot level, the local relative abundance never reached 50%, the threshold for monodominance proposed in the literature, but rather progressively increased to reach higher values for canopy trees (>60 cm {DBH}), where this threshold could be exceeded. {W}e found no sign of shifting compositional dynamics, whereby the dominant species would switch between the canopy and the undergrowth. {O}ur results, therefore, support the possibility of the existence of stable dominance states, induced by endogenous processes, such as biological positive feedbacks fostering monodominance. {W}e also document a strong relation between monodominance level and alpha diversity, when giving more weight to abundant species which is expected ({R}-2 = 0.79) but also when giving more weight to rare species ({R}-2 = 0.37), showing that monodominance influences tree species richness patterns. {S}tructural differences existed between groups, with the {PM} group having more (and on average smaller) stems and lighter wood on average, but paradoxically also higher biomass and basal area.},
  keywords = {{DR} {C}ongo ; forest dynamics ; {G}ilbertiodendron dewerei ; {J}ulbernadia seretii ; monodominance ; soil ; succession ; {P}etersianthus macrocarpus ; {REPUBLIQUE} {DEMOCRATIQUE} {DU} {CONGO} ; {CONGO} {BASSIN}},
  booktitle = {},
  journal = {{F}orests},
  volume = {11},
  numero = {5},
  pages = {art. 553 [16 p.]},
  year = {2020},
  DOI = {10.3390/f11050553},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079143},
}