@article{fdi:010084389,
  title = {{U}nderwater photogrammetry reveals new links between coral reefscape traits and fishes that ensure key functions},
  author = {{U}rbina-{B}arreto, {I}. and {E}lise, {S}. and {G}uilhaumon, {F}ran{\c{c}}ois and {B}ruggemann, {J}. {H}. and {P}inel, {R}. and {K}ulbicki, {M}ichel and {V}igliola, {L}aurent and {M}ou-{T}ham, {G}{\'e}rard and {M}ahamadaly, {V}. and {F}acon, {M}. and {B}ureau, {S}. and {P}eignon, {C}hristophe and {D}utrieux, {E}. and {G}arnier, {R}. and {P}enin, {L}. and {A}djeroud, {M}ehdi},
  editor = {},
  language = {{ENG}},
  abstract = {{M}aintaining key functions of coral reefs is vital for the persistence of these ecosystems as well as for securing the goods and services that they provide in the {A}nthropocene. {U}nderwater photogrammetry by {S}tructure from {M}otion ({S}f{M}) allows the quantification of novel habitat descriptors that may be particularly relevant in assessing key reefscape traits, that is, physical and ecological characteristics of coral reef habitats. {H}ere, we combined this new technology with fish surveys to explore how reefscape traits shape the functional structure of reef fish assemblages around three environmentally contrasted islands of the {I}ndo-{P}acific ({E}uropa {I}sland, {R}eunion {I}sland, and {N}ew {C}aledonia). {A}t 24 sites, habitat descriptors were computed from digital elevation models ({DEM}) and orthomosaics, while reef fish assemblages were assessed by visual census and video footage. {F}our habitat descriptors were marginally correlated and presented low variance inflation factor ({VIF}) values, thus being the most complementary descriptors: surface complexity, total shelter capacity, {S}hannon {S}helter {I}ndex, and total coral cover. {L}inear mixed models ({LMM}) were used to explore the relationships between these habitat descriptors and four key fish functional entities: prey, planktivores, grazers, and predators. {F}or each model, the variance explained (i.e., marginal {R}-2) was significantly higher when considering multiple predictors, including the novel three-dimensional descriptors (i.e., total shelter capacity and {S}hannon {S}helter {I}ndex). {T}he habitat descriptors quantified from underwater photogrammetry outputs (i.e., {DEM} and orthomosaics) provide easily available data to assess key reefscape traits and predict fish assemblage structure in coral reef ecosystems. {T}his trait-based functional approach allows consistent assessment of the links between these descriptors from local to regional scales. {C}onsidering the global coral reef crisis and the increasing availability of world-reef photogrammetric surveys, this new technology should be key to bringing solutions to 21st-century conservation issues.},
  keywords = {{A}nthropocene ; coral reefs ; digital elevation model ; fish assemblages ; habitat descriptors ; key ecosystem functions ; orthomosaic ; photogrammetry ; shelter capacity ; structural complexity ; {PACIFIQUE} ; {REUNION} ; {NOUVELLE} {CALEDONIE} ; {EUROPA}},
  booktitle = {},
  journal = {{E}cosphere},
  volume = {13},
  numero = {2},
  pages = {e3934 [18 ]},
  ISSN = {2150-8925},
  year = {2022},
  DOI = {10.1002/ecs2.3934},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084389},
}