@article{fdi:010032587,
  title = {{V}ariations in phenology of a residual invasive shrub species in {S}ahelian fallow savannas {S}outh-{W}est {N}iger},
  author = {{S}eghieri, {J}osiane and {S}imier, {M}onique},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he aim of this work was to analyse the phenological variation of a residual invasive semi-evergreen shrub in {S}ahelian fallows in {N}iger. {T}his species, {G}uiera senegalensis ({C}ombretaccae), has benefited from the elimination of other species thanks to its high resistance to the increasing cutting pressure for cultivation. {W}e sought to identify traits of its life cycle that could contribute to its persistence and widespread dominance under such a disturbance regime. {L}eafing, flowering and fruiting were monitored on seven fallows differing in topographic location, age, shrub density and degradation state, during two rainy seasons and one dry season. {P}henological spectra showed similar timing of the three phenophases of the seven populations. {D}ifferences were observed mainly in magnitude of the phases. {H}owever, there were both a high intra-fallow variability (64.6% of the whole variability) and a statistically significant inter-fallow variability, despite only 35.4% of the total variability being due to differences between fallows. {A} statistical classification of the fallows was proposed based on shrub phenological course over the two cycles monitored. {T}his classification corresponds to a gradient of life-cycle achievement primarily linked to the topographic situation of the stations, and then to a combination of other factors. {T}he flexibility of the phenology at the individual, population and metapopulation scales, inherent to its specific semi-evergreenness property, appeared as an essential phenological attribute contributing to successful widespread persistence of {G}. senegalensis in the study area.},
  keywords = {{SAVANE} ; {JACHERE} ; {ARBUSTE} ; {INVASION} ; {PHENOLOGIE} ; {VARIABILITE} ; {TOPOGRAPHIE} ; {DENSITE} {DE} {POPULATION} ; {STRATE} {LIGNEUSE} ; {DEGRADATION} ; {FACTEUR} {ANTHROPIQUE} ; {SECHERESSE} ; {RESSOURCES} {EN} {EAU} ; {PRECIPITATION} ; {ANALYSE} {EN} {COMPOSANTES} {PRINCIPALES} ; {SEMI} {PERSISTANT} ; {PLANTE} {RUDERALE} ; {NIGER} ; {NIAMEY}},
  booktitle = {},
  journal = {{J}ournal of {T}ropical {E}cology},
  volume = {18},
  numero = {},
  pages = {897--912},
  ISSN = {0266-4674},
  year = {2002},
  DOI = {10.1017/{S}0266467402002584},
  URL = {https://www.documentation.ird.fr/hor/fdi:010032587},
}