@article{fdi:010053222,
  title = {{T}emperate bioerosion : ichnodiversity and biodiversity from intertidal to bathyal depths ({A}zores)},
  author = {{W}isshak, {M}. and {T}ribollet, {A}line and {G}olubic, {S}. and {J}akobsen, {J}. and {F}reiwald, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n the temperate {A}zores carbonate factory, a substantial fraction of the calcareous skeletal components is recycled by a remarkable biodiversity of biota producing bioerosion traces (incipient trace fossils). {T}o study this biodiversity, experimental carbonate substrates were exposed to colonisation by epilithic and endolithic organisms along a bathymetrical gradient from 0 to 500 m depth, during 1 and 2 years of exposure. {T}he overall bioerosion ichnodiversity is very high and comprises 56 ichnotaxa and ichnoforms attributed to cyanobacteria, chlorophytes, fungi, other micro-chemotrophs, macroborers, grazers and epilithic attachment scars. {I}n the intertidal, hydrodynamic force, partial emersion and strong temperature fluctuations lead to the lowest ichnospecies richness. {T}his contrasts with the highest ichnodiversity found at 15 m under the most favourable environmental conditions. {T}owards aphotic depths, a gradual depletion in ichnodiversity is observed, most probably because of the restricted light availability and a slowdown in ichnocoenosis development. {A}nalysis of similarity ({ANOSIM}), in combination with non-metrical multidimensional scaling ({NMDS}), was used to highlight variability in the relative abundance of traces among depths, substrate orientations and exposure times. {I}chnodiversity and abundance of traces decrease significantly with depth and are higher on up-facing versus down-facing substrates, whereas differences between years were not as pronounced. {T}his study demonstrates that statistical methods of biodiversity analysis are not per se restricted to biotaxa but may well be applied also to ichnotaxa. {I}n the analysis of trace fossil assemblages, this approach supports the recognition of diversity patterns and their relation to environmental gradients.},
  keywords = {{MICROORGANISME} ; {ALGUE} ; {DISTRIBUTION} {SPATIALE} ; {ZONE} {BATHYALE} ; {STRUCTURE} {DU} {PEUPLEMENT} ; {ABONDANCE} ; {PALEOENVIRONNEMENT} ; {CYANOBACTERIE} ; {BIODIVERSITE} ; {BIOEROSION} ; {ACORES}},
  booktitle = {},
  journal = {{G}eobiology},
  volume = {9},
  numero = {6},
  pages = {492--520},
  ISSN = {1472-4669 ; 1472-4677},
  year = {2011},
  DOI = {10.111/j.1472-4669.2011.00299.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010053222},
}