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Now showing items 441-450 of 543
Potencial de heterotrofia do reservatório de Barra Bonita (SP), com ênfase na decomposição de polissacarídeos extracelulares de espécies fitoplânctônicas.
(Universidade Federal de São Carlos, 2004-03-05)
The extracellular polysaccharides (EPS) excreted by algae comprise an important fraction of organic matter produced by the phytoplankton in fresh and salt waters. Thus EPS can be considered an important organic carbon ...
Conservação de bio-recursos algais no Brasil: estabelecimento de um banco criopreservado
(Universidade Federal de São Carlos, 2016-12-09)
The establishment of culture collections is a vital aspect for the conservation
freshwater microalgae, which are a very diverse group of organisms with important
ecological functions on the ecosystems maintenance and an ...
Perturbação hidrológica, estabilidade e diversidade de macroinvertebrados em uma zona úmida (lagoas intermitentes) do semi-árido brasileiro.
(Universidade Federal de São Carlos, 2004-03-26)
Intermittent shallow lakes are a kind of wetland of great importance in the Brazilian semiarid area, being characterized by hydrological extremes of flood and drought. These shallow lakes are good model for ecological study ...
Epifitismo vascular e estado de conservação de fragmentos florestais na Bacia Hidrográfica do Sorocaba/Médio Tietê, São Paulo, Brasil
(Universidade Federal de São Carlos, 2013-11-27)
About 10 % of all vascular plants in the world are epiphytes. Vascular epiphytes settle on the host trees (phorophytes) without producing haustorial structures, aiming to increase access to sunlight, even at the expense ...
O mapeamento dos conflitos socioambientais de Mato Grosso: denunciando injustiças ambientais e anunciando táticas de resistência
(Universidade Federal de São Carlos, 2012-03-23)
The State of Mato Grosso-Brazil, locus of this research, is singular from the ecological point of view, encompassing three important biomes: Amazon, Cerrado (Savannah) and Pantanal, and also a peculiar ecosystem called ...
Caracterização genética populacional do dourado, Salminus brasiliensis (Pisces, Characidae, Salmininae) na Bacia do alto e médio rio Uruguai
(Universidade Federal de São Carlos, 2014-04-01)
brasiliensis (CUVIER, 1816) is distributed in several basins of South America. Commonly known by dourado, is a large fish and economical and social importance for artisanal and sport fishing. Due to the necessity of ...
Bioacumulações de Cd, Ni, Pb e Zn durante os crescimentos de Salvinia minima e Lemna valdiviana
(Universidade Federal de São Carlos, 2014-07-31)
Metals are dispersed easily in environments and are bioconcentrated in tissues of many organisms causing risks to the health and stability of aquatic ecosystems even at low concentrations. The use of plants in phytoremediation ...
O impacto da invasão por Hedychium coronarium J. König (Zingiberaceae) em áreas ripárias
(Universidade Federal de São Carlos, 2019-06-25)
Riparian environments are increasingly being modified by human activities and this causes changes in vegetation dynamics. Native species are being replaced by exotic and invasive ones. Impacts of plant invasions in these ...
Biologia de populações de peixes do Riachos da Vila de Itatinga, Bertioga, São Paulo
(Universidade Federal de São Carlos, 2019-09-05)
The ichthyofauna is closely related to the structural characteristics of the environments in which they live, as well as are observed functional relations between substrate and marginal vegetation and the fish species, as ...
Efeitos de distúrbios antrópicos na regeneração de plantas
(Universidade Federal de São Carlos, 2020-03-19)
Human disturbances like habitat fragmentation, edge effects, biological invasions, selective logging and grazing often alter biotic and abiotic conditions, potentially affecting plant regeneration. However, there was no ...