Search Results - "Graca, Manuel"

Whole-stream nitrate addition affects litter decomposition and associated fungi but not invertebrates by Ferreira, V, Gulis, V, Graça, M.A.S

“…We assessed the effect of whole-stream nitrate enrichment on decomposition of three substrates differing in nutrient quality (alder and oak leaves and balsa…”
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Bioaccumulation and Dispersion of Uranium by Freshwater Organisms by Bergmann, Melissa, Graça, Manuel A. S.

“…Uranium is the heaviest naturally occurring element on Earth. Uranium mining may result in ground and surface water contamination with potential…”
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Litter Quality Is a Stronger Driver than Temperature of Early Microbial Decomposition in Oligotrophic Streams: a Microcosm Study by Pérez, Javier, Ferreira, Verónica, Graça, Manuel A. S., Boyero, Luz

“…Litter decomposition is an ecological process of key importance for forest headwater stream functioning, with repercussions for the global carbon cycle. The…”
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Invasion of temperate deciduous broadleaf forests by N‐fixing tree species – consequences for stream ecosystems by Ferreira, Verónica, Figueiredo, Albano, Graça, Manuel A. S., Marchante, Elizabete, Pereira, Ana

“…ABSTRACT Biological invasions are a major threat to biodiversity and ecosystem functioning. Forest invasion by alien woody species can have cross‐ecosystem…”
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A meta-analysis of drought effects on litter decomposition in streams by Ferreira, Verónica, Graça, Manuel A. S., Elosegi, Arturo

“…Droughts, or severe reductions of water flow, are expected to become more frequent and intense in rivers in many regions under the ongoing climate change…”
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A conceptual model of litter breakdown in low order streams by Graça, Manuel A. S., Ferreira, Verónica, Canhoto, Cristina, Encalada, Andrea C., Guerrero-Bolaño, Francisco, Wantzen, Karl M., Boyero, Luz

“…The detrital‐based food web of many streams and rivers plays a fundamental role in the cycling and retention of carbon and nutrients. However, we still need to…”
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Effects of Acacia invasion on water quality, litterfall, aquatic decomposers, and leaf litter decomposition in streams by Pereira, Ana, Figueiredo, Albano, Coimbra, Nuno, Graça, Manuel A. S., Ferreira, Verónica

“…Small streams and their riparian vegetation are closely linked ecosystems. Thus, the invasion of native riparian forests with non‐native species can impact…”
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A comparison of decomposition rates and biological colonization of leaf litter from tropical and temperate origins by Ramos, Sandra M., Graça, Manuel A. S., Ferreira, Verónica

“…Litter decomposition is an ecosystem process that allows energy and nutrients transfer from dead plant matter into detrital food webs. Several studies revealed…”
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Aquatic hyphomycetes, benthic macroinvertebrates and leaf litter decomposition in streams naturally differing in riparian vegetation by Ferreira, Verónica, Castela, José, Rosa, Paulo, Tonin, Alan Mosele, Boyero, Luz, Graça, Manuel A. S.

“…Small forest streams and their riparian vegetation are closely linked ecosystems. Stream consumers obtain most of their energy from leaf litter provided by the…”
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Ecosystem services provided by fungi in freshwaters: a wake-up call by Seena, Sahadevan, Baschien, Christiane, Barros, Juliana, Sridhar, Kandikere R., Graça, Manuel A. S., Mykrä, Heikki, Bundschuh, Mirco

“…The set of functions and resources derived from ecosystems are broadly described as ecosystem services. Human society is gratified by a diverse range of…”
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Riparian land use and the relationship between the benthos and litter decomposition in tropical montane streams by ENCALADA, ANDREA C, CALLES, JUAN, FERREIRA, VERONICA, CANHOTO, CRISTINA M, GRAÇA, MANUEL A.S

“…1. Although stream-catchment interactions have been analysed in some detail in temperate environments, little is known about the effects of land-use changes in…”
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Influence of the Preparation Method on the Structural, Morphological and Dielectric Properties of FeNbO4 Ceramics by Devesa, Susana, Gonçalves, Filipa, Graça, Manuel

“…In this work, iron niobate (FeNbO4) was prepared via two processes based on the sol-gel method: colloidal gel and polymeric gel. The obtained powders were…”
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Leaf litter decomposition in remote oceanic island streams is driven by microbes and depends on litter quality and environmental conditions by Ferreira, Verónica, Raposeiro, Pedro M., Pereira, Ana, Cruz, Ana M., Costa, Ana C., Graça, Manuel A. S., Gonçalves, Vítor

“…Summary Leaf litter decomposition is an important process in many streams. The flow of carbon and nutrients to higher trophic levels generally depends on…”
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Effects of litter diversity on decomposition and biological colonization of submerged litter in temperate and tropical streams by Ferreira, Verónica, Encalada, Andrea C., Graça, Manuel A. S.

“…Detrital food webs of woodland streams depend on terrestrial litter input and, thus, are susceptible to changes in riparian cover. We assessed effects of…”
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Top‐down and bottom‐up control of litter decomposers in streams by Gonçalves, Ana Lúcia, Chauvet, Eric, Bärlocher, Felix, Graça, Manuel A. S, Canhoto, Cristina

“…Detritivores preferentially consume certain aquatic hyphomycete species while rejecting others. Fungal identity may therefore be a crucial factor determining…”
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Organic Matter Dynamics in a Tropical Gallery Forest in a Grassland Landscape by de Souza Rezende, Renan, S. Graça, Manuel A., dos Santos, Anderson M., Medeiros, Adriana O., Santos, Paola F., Nunes, Yule R., Gonçalves Júnior, José F.

“…The high biodiversity of tropical forest streams depends on the strong input of organic matter, yet the leaf litter decomposition dynamics in these streams are…”
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Caddisflies growth and size along an elevation/temperature gradient by Cogo, Gláucia B., Martínez, Jesús, Santos, Sandro, Graça, Manuel A. S.

“…Temperature influences biological systems ranging from biochemical reactions to ecosystem processes. Some traits such as growth, development, and body size are…”
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Uranium toxicity to aquatic invertebrates: A laboratory assay by Bergmann, Melissa, Sobral, Olimpia, Pratas, João, Graça, Manuel A.S.

“…Uranium mining is an environmental concern because of runoff and the potential for toxic effects on the biota. To investigate uranium toxicity to freshwater…”
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Effects of elevated atmospheric CO2 concentration and temperature on litter decomposition in streams: A meta‐analysis by Amani, Mabano, Graça, Manuel A. S., Ferreira, Verónica

“…The metabolism of forest streams depends on the decomposition of plant litter of terrestrial origin. In turn, the rate at which litter decomposes depends on…”
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Microbial colonization and decomposition of commercial tea and native alder leaf litter in temperate streams by Ferreira, Verónica, Silva, João, Cornut, Julien, Graça, Manuel A. S.

“…Leaf litter decomposition in streams is a fundamental ecosystem process that allows for the cycling of nutrients. The rate at which leaf litter decomposes is…”
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