@article{fdi:010092042,
  title = {{U}pscaling the contribution of crab burrows to mangrove ecosystem functioning in {F}rench {G}uiana ({S}outh {A}merica)},
  author = {{M}ichaud, {E}. and {A}schenbroich, {A}. and {S}tieglitz, {T}homas and {B}runier, {G}. and {A}ller, {R}. {C}. and {A}nthony, {E}. and {F}romard, {F}. and {T}houzeau, {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}urrow characteristics and bioturbation activities of benthic organisms play a key role in mangrove ecosystem biogeochemical and sedimentary functioning. {I}n this study, we aimed to understand how small-scale topographic variations in a mud bank might influence burrow morphology and distribution in a {F}rench {G}uiana pioneer mangrove system ({S}innamary estuary), and to upscale spatial patterns using remote sensing. {W}e used burrow resin casting and sediment conductivity measurements to depict subsurface 3{D} burrow structures. {W}e found that the spatial heterogeneity of burrow sizes (small, medium, large) and morphologies (simple {I}- and {J}-shape, complex geometries) depended on the geomorphic units within mudflats (platform, channel, depression). {T}he aperture areas of burrow casts were used to predict the volume and complexity of each burrow type, enabling us to use drone-derived burrow opening distribution maps to calculate burrow volumes and complexity at the mudflat scale. {T}here are clear associations between tidal channels and depressions and voluminous, multi-aperture, complex and multi-species burrows. {I}n contrast, simple {I}- and {J}-shaped burrows inhabited by single species were mainly found on platforms. {T}hese relationships lead to a comparatively large volume of tidal-irrigated and deeply aerated sediments connected to channels and depressions compared to platform areas. {W}e suggest that, depending on their morphology and connectivity with the topography, burrows may exhibit differences in biogeochemical functioning depending on the geomorphic unit. {W}e warn against generalizing the functioning of mangrove ecosystems across geomorphic units where impacts may differ. {F}urther studies are needed to understand how different burrow morphologies and life cycles may alter hydrological, sedimentary and biogeochemical functioning.},
  keywords = {{A}mazon mud banks ; {B}ioturbation ; {B}urrow morphology ; {D}rone imagery ; {P}ioneer mangrove ; {GUYANE} {FRANCAISE}},
  booktitle = {},
  journal = {{R}egional {E}nvironmental {C}hange},
  volume = {24},
  numero = {4},
  pages = {165 [14 p.]},
  ISSN = {1436-3798},
  year = {2024},
  DOI = {10.1007/s10113-024-02319-z},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092042},
}