@article{fdi:010079794,
  title = {{H}igh genetic diversity with low connectivity among {M}auritia flexuosa ({A}recaceae) stands from {E}cuadorean {A}mazonia},
  author = {{M}ontufar, {R}. and {R}ecalde, {A}. and {C}ouvreur, {T}homas},
  editor = {},
  language = {{ENG}},
  abstract = {{M}auritia flexuosa dominated palm swamps are an important forest resource covering over 30,000 km(2)across the {A}mazon basin. {I}n {E}cuadorean {A}mazonia, {M}auritia flexuosa, a dioecious and arborescent palm species, forms small and isolated populations or large and dense stands on poorly drained soils. {H}ow these populations are genetically interconnected and how genetic diversity varies between cohorts of different ages remains little studied although they are important for conservation of these ecosystems. {T}he genetic structure of {M}auritia flexuosa was studied in five natural stands using eight microsatellite loci and two cohorts (seedling and adults). {I}n addition, age structure and sex ratio within the stands were assessed using transects. {T}he age structure of the studied {M}auritia flexuosa stands is represented by a high number of seedlings (mean = 1,153.6/ha) and adults (mean = 563.2/ha), with a sex ratio favoring female individuals (1.42:1). {T}hese stands are also characterized by a fine-scale genetic structure, high observed heterozygosity (mean: {H}-{O} seedlings=0.52; {H}-{O} adults=0.52), high inbreeding (mean:{F}-{IS} seedlings = 0.26; {F}-{IS} adults = 0.26), low number of migrants ({N}-m=0.29), strong genetic differentiation (mean : pairwise{R}({ST})/ {D}-values(seedlings) = 0.08/ 0.74; mean{R}({ST})/{D}-values(adults) = 0.17/ 0.76), and an average effective population size ({N}-e) of 191.42 individuals. {N}o intergenerational genetic variation was detected between seedlings and adults. {W}e suggest that the high genetic diversity and inbreeding as well as the strong differentiation among stands of these populations could be explained, at least partially, by a low genetic connectivity among populations. {D}estructive harvesting of its fruits and defaunation will be major threats to {M}auritia flexuosa populations in the future. in {S}panish is available with online material},
  keywords = {{E}cuador ; {M}auritia flexuosa palm swamps ; {N}eotropical palms ; wetlands ; {Y}asuni ; {EQUATEUR} ; {AMAZONIE}},
  booktitle = {},
  journal = {{B}iotropica},
  volume = {53},
  numero = {1},
  pages = {152--161},
  ISSN = {0006-3606},
  year = {2021},
  DOI = {10.1111/btp.12855},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079794},
}