@article{fdi:010085947,
  title = {{M}acroinvertebrate distribution associated with environmental variables in {A}lpine streams},
  author = {{B}ecquet, {J}. and {L}amouroux, {N}. and {C}ondom, {T}homas and {G}outtevin, {I}. and {F}orcellini, {M}. and {L}aunay, {B}. and {R}abatel, {A}. and {C}auvy-{F}raunie, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{O}ngoing hydrological alterations due to climate change and anthropogenic uses of water have major implications for freshwater biodiversity. {Q}uantifying the relative effects of environmental variables on macroinvertebrates is required to predict biological responses to hydrological alterations. {T}o date, no study simultaneously examined the effects of physico-chemistry, hydraulics, and hydrology on the distribution of alpine macroinvertebrate communities and taxa. {I}n this study, we aimed to quantify the relative correlation between these environmental variables and macroinvertebrate community composition and structure. {W}e sampled macroinvertebrates at 66 stream sites located in three catchments in the {F}rench {A}lps. {W}e characterised the proximate habitat at each site using 11 variables describing measured physico-chemistry and hydraulics, and simulation-based hydrology. {W}e described relationships between community structure and the environment using a co-inertia analysis and modelled individual taxa abundance with generalised linear mixed models. {T}he co-inertia revealed a significant co-structure between the environmental and macroinvertebrate matrices. {G}lacier-influenced sites with high turbidity and summer flow exhibited similar community composition with low total abundance. {S}ources at high altitude and sites with low glacial influence, exhibiting high summer flow and flow velocity, were dominated by {D}iamesinae, {R}hithrogena spp., {D}ictyogenus spp., and {B}aetis alpinus. {S}treams fed by rainfall/snowmelt and valley sources, associated with higher temperature, conductivity, and monthly discharge variability were characterised by higher richness and abundances. {M}odels indicated that the three types of proximate habitat variables significantly contributed to the macroinvertebrate distribution. {T}urbidity was strongly negatively associated with macroinvertebrate abundances. {I}ncreasing flow velocity and summer flow had significant (mainly negative) effect in 43% of models. {T}he co-structure between communities and proximate habitat variables was shared by the three catchments. {F}or most individual taxa, catchment identity did not influence abundance models and cross-validations indicated transferable effects of proximate habitat variables among alpine catchments. {O}ur results can be used to infer responses of alpine macroinvertebrates to multivariate environmental changes. {U}nderstanding the relationships between macroinvertebrates and environmental variables help to predict how communities and taxa will be affected by habitat alterations due to ongoing hydrological changes and resulting physico-chemical conditions.},
  keywords = {glacial rivers ; hydraulics ; hydrological regime ; mountain catchment ; physico-chemistry ; {FRANCE} ; {ALPES} ; {ARVE} {COURS} {D}'{EAU} ; {VANOISE} {COURS} {D}'{EAU} ; {ARVAN} {COURS} {D}'{EAU}},
  booktitle = {},
  journal = {{F}reshwater {B}iology},
  numero = {},
  pages = {[17 p.]},
  ISSN = {0046-5070},
  year = {2022},
  DOI = {10.1111/fwb.13977},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085947},
}