@article{fdi:010061489,
  title = {{A}lert thresholds for monitoring environmental variables : a new approach applied to seagrass beds diversity in {N}ew {C}aledonia},
  author = {{V}an {W}ynsberge, {S}. and {G}ilbert, {A}. and {G}uillemot, {N}icolas and {P}ayri, {C}laude and {A}ndr{\'e}fou{\¨e}t, {S}erge},
  editor = {},
  language = {{ENG}},
  abstract = {{M}onitoring ecological variables is mandatory to detect abnormal changes in ecosystems. {W}hen the studied variables exceed predefined alert thresholds, management actions may be required. {I}n the past, alert thresholds have been typically defined by expert judgments and descriptive statistics. {R}ecently, approaches based on statistical power were also used. {I}n {N}ew {C}aledonia, seagrass monitoring is a priority given their vulnerability to natural and anthropic disturbances. {T}o define a suitable monitoring strategy and alert thresholds, we compared a {P}ercentile {B}ased {A}pproach ({PBA}) and a sensitivity analysis of power ({SAP}). {B}oth methods defined statistically relevant alert thresholds, but the {SAP} approach-was more robust to spatial and temporal variability of seagrass cover. {M}oreover, this method characterized the sensitivity of threshold values to sampling efforts, a useful knowledge for managers.},
  keywords = {{I}ndicators ; {P}ower analysis ; {A}lert threshold ; {S}eagrass ; {M}onitoring ; {NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{M}arine {P}ollution {B}ulletin},
  volume = {77},
  numero = {1-2},
  pages = {300--307},
  ISSN = {0025-326{X}},
  year = {2013},
  DOI = {10.1016/j.marpolbul.2013.09.035},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061489},
}