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Annales de Limnologie - International Journal of Limnology

Volume 50 / No 2 (2014)


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Comparison of three shredders response to acute stress induced by eucalyptus leaf leachates and copper: single and combined exposure at two distinct temperatures p. 97

Eucalyptus leaf leachates and copper may modulate the biodiversity of shredders communities due to differential sensitivity of individual species to single and combined exposure with temperature influencing the process. S. festiva is the least sensitive and the relative sensitivity of A. desmarestii and E. meridionalis is chemical and temperature dependent.

Published online: 20 March 2014
DOI: https://doi.org/10.1051/limn/2014006
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Competitive outcome between the rotifer Brachionus calyciflorus and the cladoceran Moina macrocopa depends on algal density but not temperature p. 109

The competitive outcome between B. calyciflorus and M. macrocopa was dependent on algal density but not temperature, the duration of coexsitentce between them was dependent on algal density and temperature, and the exploitative competition of M. macrocopa over B. calyciflorus may be more important than the interference competition.

Published online: 20 March 2014
DOI: https://doi.org/10.1051/limn/2014003
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Diatom response to heavy metal pollution and nutrient enrichment in an urban lake: evidence from paleolimnology p. 121

Diatoms and geochemical proxies were analyzed in recent sediments from an urban lake.

Chronology was estimated based on 137Cs and Spheroidal carbonaceous particles dating.

Diatom succession over the past 60 years correlated with nutrient enrichment and heavy metal inputs.

Published online: 20 March 2014
DOI: https://doi.org/10.1051/limn/2014004
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The response of phytoplankton, zooplankton and macrozoobenthos communities to change in the water supply from surface to groundwater in aquaculture ponds p. 131

Phytoplankton, zooplankton and macrozoobenthos were used to assess effects of altering water supply from surface to groundwater in ponds.

Our study revealed that increased conductivity led to decrease in abundance and diversity especially in zooplankton. Phytoplankton showed capability to accommodate to new conditions while macrozoobenthos was relatively tolerant.

Published online: 20 March 2014
DOI: https://doi.org/10.1051/limn/2014005
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Evaluation of a new sampling method for assessing Cladocera richness (Crustacea, Branchiopoda) in macrophyte-rich wetlands p. 143

A new sampling method based on depth gradient and change in aquatic vegetation was able to efficiently access the richness of Cladocera in shallow wetlands. This method was proposed to minimize the effect of spatial heterogeneity on species richness in environments dominated by macrophytes.

Published online: 28 March 2014
DOI: https://doi.org/10.1051/limn/2014007
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Effects of water nutrients on regeneration capacity of submerged aquatic plant fragments p. 155

- We studied the effect of different nutrient concentration on regeneration capacity and regeneration type of eight submerged aquatic plant species.

- Species differed in their regeneration capacity and their regeneration type by new shoot and/or new root production.

- Nutrient effects were found for both regeneration capacity and regeneration type.

Published online: 04 April 2014
DOI: https://doi.org/10.1051/limn/2014008
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Morphometric and biotic variables as potential predictors of Ludwigia sedoides (Humb. & Bonpl.) Hara in a large Amazonian reservoir p. 163

Ludwigia sedoides is an aquatic macrophyte commonly found in Neotropical reservoirs, but little is known about the factors determining its distribution. The present study is the first to indicate that morphometric variables are potential predictors of L. sedoides. Sheltered sites with low slope and moderate depths represented favorable environments for colonization and growth.

Published online: 04 April 2014
DOI: https://doi.org/10.1051/limn/2014009
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Trophic ontogenetic shifts of the dragonfly Rhionaeschna variegata: the role of larvae as predators and prey in Andean wetland communities p. 173

The trophic position of the dragonfly Rhionaeschna variegata in the wetland food webs was analyzed in relation to the variation of its larval body size. The smaller R. variegata larvae experience high levels of cannibalism and intraguild predation by sympatric aquatic insects. The largest R. variegata larvae which survive predation reach the top of the trophic food web having a great impact on the survival of invertebrates and amphibian larvae.

Published online: 23 April 2014
DOI: https://doi.org/10.1051/limn/2014010