@article{fdi:010062405,
  title = {{R}elationships between stream macroinvertebrate communities and new flood-based indices of glacial influence},
  author = {{C}auvy {F}rauni{\'e}, {S}. and {E}spinosa, {R}. and {A}ndino, {P}. and {D}angles, {O}livier and {J}acobsen, {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {1. {A}s glacier shrinkage is accelerating due to climate change, it is important to understand the effect of changes in glacier runoff on downstream aquatic communities. {T}he overall goal of this study was to test the relevance of recently developed wavelet-based metrics of flow variations caused by glacial melting cycles to deepen our knowledge about the relationship between glacial influence and aquatic biodiversity. 2. {I}n an equatorial glacierised catchment, we selected 15 stream sites covering a gradient of direct contribution from glacial runoff. {A}t each site, we recorded water level time series for 10 months and sampled benthic macroinvertebrates. {W}avelet analyses on the water level time series were used to calculate three indices: glacial flood intensity, frequency and temporal clustering. {W}e then examined how these three indices were related to macroinvertebrate community composition using generalised additive models. 3. {W}hile macroinvertebrate density decreased significantly with glacial flood intensity, we found a significant hump-shaped relationship between local taxon richness and glacial flood intensity, a pattern that was not produced simply by overlapping broad taxon distributions from either end of the environmental gradient. {T}hese results suggest that glacial meltwater contribution creates local peaks in macroinvertebrate richness and enhances regional diversity in the catchment. 4. {T}he significant relationships between faunal metrics and the new glacial influence indices suggest the latter are valuable for assessing the effects of altered meltwater contributions on aquatic communities of glacier-fed rivers. {R}elationships differed depending on the feature of the glacial disturbance considered (glacial flood intensity, frequency, temporal clustering). {W}e anticipate that these distinctions may help disentangle the mechanisms driving aquatic biodiversity in glacierised catchments, especially in terms of identifying resistance and/or resilience as key processes in glacial macroinvertebrate communities.},
  keywords = {benthic macroinvertebrates ; daily glacial floods ; glacierised ; catchments ; tropical mountains ; wavelet analyses ; {EQUATEUR}},
  booktitle = {},
  journal = {{F}reshwater {B}iology},
  volume = {59},
  numero = {9},
  pages = {1916--1925},
  ISSN = {0046-5070},
  year = {2014},
  DOI = {10.1111/fwb.12395},
  URL = {https://www.documentation.ird.fr/hor/fdi:010062405},
}