<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Imène Benzina</style></author><author><style face="normal" font="default" size="100%">SI-BACHIR, Abdelkrim</style></author><author><style face="normal" font="default" size="100%">Frédéric Santoul</style></author><author><style face="normal" font="default" size="100%">Régis Céréghino</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Macroinvertebrate functional trait responses to environmental gradients and anthropogenic disturbance in arid-land streams of North Africa</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Arid Environments</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2021</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/abs/pii/S0140196321001920</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">195</style></volume><isbn><style face="normal" font="default" size="100%">0140-1963</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;
	We analyzed the influence of land use and water physical-chemical characteristics on the trait composition of benthic&amp;nbsp;macroinvertebrates&amp;nbsp;in arid-land streams of North-East Algeria. Macroinvertebrates were sampled in the&amp;nbsp;spring season&amp;nbsp;of 2015, 2017 and 2018&amp;nbsp;at 36 sampling sites distributed along 5 streams of the Belezma&amp;nbsp;biosphere reserve. Samples were taken from the various substratum types using a Surber net. Most of the variability of the trait-environment relationship was explained by increasing temperature and conductivity along the downstream gradient. Whilst&amp;nbsp;agriculture&amp;nbsp;at higher elevations did not have a great influence on the functional trait composition of macroinvertebrate communities,&amp;nbsp;agriculture&amp;nbsp;and urbanization at lower elevations generated significant deviations from predictable functional structures. Owing to the natural downstream decrease in community diversity in streams of the study region, entire taxa and/or functional groups were more likely to be wiped out in response to anthropogenic perturbations at lower elevations. Despite human activities, climate-related variables in arid lands play a major role on&amp;nbsp;hydrological regimes&amp;nbsp;that effect instream habitats,&amp;nbsp;water chemistry, and macroinvertebrate communities. Given the environmental constraints in arid-land streams of&amp;nbsp;North Africa, even slight increases in anthropogenic pressure can have negative effects on the taxonomic and functional composition of macroinvertebrate communities.
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