3 documents found, page 1 of 1
Food web structure of three Mediterranean stream reaches along a gradient of an...
Sroczynska, Katarzyna; Williamson, Tanner; Claro, Marilia; Gonzalez-Perez, Jose Antonio; Range, Pedro; Boski, Tomasz; Chicharo, LuisAnthropogenic impact can alter food web structure through changes in species interactions. In this study, we explored the food web of three Mediterranean stream reaches (two seasonal and one permanent) along an anthropogenic impact gradient to test the hypothesis that increasing impact simplifies food webs. To test this, we applied the isotopic (δ13C and δ15N) niche concept to compare reaches using isotopic met...
Independent effects of habitat and stream typology on macroinverte-brate commun...
Sroczyńska, Katarzyna; Leitão, Francisco; Máximo, I.; Range, Range; Furtado, A.; Claro, Marilia; Chicharo, LuisMacroinvertebrate-based water quality assessment in temporary streams is an important yet still understudied issue. Investigat-ing different aspects of macroinvertebrate distribution in these streams is therefore highly necessary for the successful imple-mentation of bio-assessment programs. We investigated the variability in macroinvertebrate communities (number of families, abundance, taxonomic richness) and ...
Habitat-specific benthic metabolism in a Mediterranean-type intermittent stream
Sroczynska, Katarzyna; Claro, Marilia; Range, Pedro; Wasiak, Katarzyna; Wojtal-Frankiewicz, Adrianna; Ben-Hamadou, Radhouan; Leitão, FranciscoA modified flow-through chamber method was used to measure gross primary production (GPP), net primary production (NPP), community respiration (CR) and associated environmental variables in an intermittent Mediterranean-type stream in Southern Portugal. Three common types of in stream habitats were targeted: cobble (C), cobble covered with filamentous algae (C+A) and leaf litter (LL). NPP, GPP and CR differed s...