@article{fdi:010045032, title = {{L}ongitudinal and altitudinal changes of macroinvertebrate functional feeding groups in neotropical streams : a test of the {R}iver {C}ontinuum {C}oncept}, author = {{T}omanova, {S}. and {T}edesco, {P}. {A}. and {C}ampero, {M}. and {V}an {D}amme, {P}. {A}. and {M}oya, {N}. and {O}berdorff, {T}hierry}, editor = {}, language = {{ENG}}, abstract = {{T}he {R}iver {C}ontinuum {C}oncept ({RCC}) explains the structural and functional characteristics of stream communities focusing on the gradually changing physical components from headwaters to downstream habitats of streams and rivers. {T}he global value of the {RCC} is still uncertain, possibly because physical factors (e.g., altitude and then temperature, stream order, channel width) can vary differently in longitudinal river axes across the world. {M}oreover, {RCC} predictions in relation to different physical factors have not been tested adequately in different biomes, especially biomes outside of temperate {N}orth {A}merica. {H}ere, we report on the functional structure of macroinvertebrate communities in neotropical streams from {B}olivia along a broad altitudinal gradient (from 1120 to 4300 m a.s.l.), aiming to understand how altitude can affect the longitudinal changes in functional feeding groups ({FFG}) and richness predicted by the {RCC}. {T}he {RCC} predictions for functional structure were not completely matched when analyzing {FFG}s in relation to an index of longitudinal stream gradient. {H}owever, after removing the effect of altitude by using residuals from regressions between {FFG}s and altitude, {FFG} patterns matched {RCC} predictions more closely. {W}e detected significant relationships between altitude and the relative abundance of collector-gatherers, shredders and scrapers which may be related to changes in temperature, {UV} radiation and canopy cover along the altitudinal gradient. {O}ur results indicate that altitude combined with position along the longitudinal gradient is an important factor governing the {FFG} structure of macro invertebrate communities in neotropical streams.}, keywords = {orgarlism distribution ; distance from source ; width ; slope ; altitude ; {A}mazon sub basin ; {B}olivia}, booktitle = {}, journal = {{F}undamental and {A}pplied {L}imnology}, volume = {170}, numero = {3}, pages = {233--241}, ISSN = {1863-9135}, year = {2007}, DOI = {10.1127/1863-9135/2007/0170-0233}, URL = {https://www.documentation.ird.fr/hor/fdi:010045032}, }