@article{fdi:010060318,
  title = {{S}tress-tolerator leaf traits determine population dynamics in the endangered {N}ew {C}aledonian conifer {A}raucaria muelleri},
  author = {{E}nright, {N}.{J}. and {M}iller, {B}.{P}. and {P}erry, {G}.{L}.{W}. and {G}oldblum, {D}. and {J}affr{\'e}, {T}anguy},
  editor = {},
  language = {{ENG}},
  abstract = {{D}emographic and ecophysiological data for the endangered {N}ew {C}aledonian conifer, {A}raucaria muelleri ({A}raucariaceae), were analysed to: (i) evaluate population viability in relation to site conditions and human impacts; and (ii) advance our understanding of how stress-tolerator plant functional traits affect the population dynamic behaviour and conservation requirements of long-lived tree species. {G}rowth, survivorship and recruitment in four {A}. muelleri populations were monitored across 9 years. {D}emographic rates were analysed using stage-based transition matrices. {L}eaf δ13{C}, %{N} and photosystem {II} stress ({F}v/{F}m) were measured for seedlings, saplings and trees, and leaf mass per area ({LMA}) for trees, and correlations among ecophysiological and demographic variables explored. {S}eedling, sapling and tree stem growth were among the slowest, and annual survivorship among the highest, reported for any tree. {T}ransition matrix analyses yielded stable estimated population growth rates, λ, not significantly different from 1.0 for all populations. {L}eaf δ13{C} was positively correlated with seedling and sapling height growth, while daytime photosystem {II} stress ({F}v/{F}m) was high in seedlings, but low in saplings and trees. {E}cophysiological measures suggest that individuals transition from moisture-limited growth at the seedling stage to nutrient-limited growth as adults. {H}igh levels of environmental stress result in slow stand dynamics, characterized by low recruitment and growth rates counterbalanced by equally low mortality rates. {T}hese dynamics result in populations with limited capacity to increase in size quickly, but potentially highly vulnerable to decline should the rate of adult mortality increase. {T}his combination of traits is likely typical of extreme stress-tolerator woody species and suggests a conservation focus on the preservation of mature individuals.},
  keywords = {{PHYTOECOLOGIE} ; {ARBRE} ; {ESPECE} {MENACEE} ; {ECOPHYSIOLOGIE} ; {ANALYSE} {DE} {DONNEES} ; {DYNAMIQUE} {DE} {VEGETATION} ; {TOLERANCE} {AU} {STRESS} ; {CONIFERE} ; {CARBONE} 13 ; {NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{A}ustral {E}cology},
  volume = {39},
  numero = {1},
  pages = {60--71},
  ISSN = {1442-9985},
  year = {2014},
  DOI = {10.1111/aec.12045},
  URL = {https://www.documentation.ird.fr/hor/fdi:010060318},
}