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Delimitação de espécies e plasticidade fenotípica em microalgas verdes da família Selenastraceae: uma abordagem fisiológica
(Universidade Federal de São Carlos, 2020-07-13)
Recently, discussions on conservation policies at different geopolitical levels have been widely debated. Species are the main indicators for estimating biodiversity parameters, playing a key role in biodiversity records. ...
Avaliação do potencial fitotóxico de frações e subfrações de folhas, cascas de caule e raízes de Ocotea pulchella e dos compostos salicilato de benzila e benzoato de benzila sobre espécies invasoras
(Universidade Federal de São Carlos, 2020-12-21)
Plants synthesize a wide variety of chemicals in response to biotic and abiotic stresses. These substances are usually associated with plant defense processes against herbivores and pathogens. These substances, derived ...
Qualidade do detrito na perda de massa do material particulado de eichhornia crassipes (mart.) solms sob efeito da temperatura
(Universidade Federal de São Carlos, 2019-12-12)
Carbon cycling of macrophytes in aquatic ecosystems occurs both by the characteristics of the environment (extrinsic properties) and by the different characteristics of their debris (intrinsic properties). So, in this ...
Biodiversidade de comunidades zooplanctônicas em lagoas salinas e de água doce do Pantanal Sulmatogrossense: aspectos taxonômicos, funcionais e ecológicos
(Universidade Federal de São Carlos, 2020-03-09)
In an ecosystem its main components, biotic and abiotic, operate and somehow together reach functional stability. Not only the water body is the local where communities live, but these also transform the environment in ...
Physiological responses of chlorophyta microalgae under environmentally relevant copper concentrations: biomolecules, oxidative stress and photosynthesis
(Universidade Federal de São Carlos, 2022-02-28)
Microalgae require copper (Cu) in trace levels for their growth and metabolism. It is a vital component of certain metalloproteins, participates in the photosynthetic process, and catalyzes various redox reactions. Although ...
Comunidade fitoplanctônica do reservatório de Barra Bonita e sua relação com a composição e quantidade de polissacarídeos extracelulares e agregados gelatinosos
(Universidade Federal de São Carlos, 2006-03-13)
(Gelatinous aggregates (lake snow) from an eutrophic Brazilian reservoir and their relationships with abundant phytoplanktonic algae). Lake snow and phytoplankton studies were conduced in Barra Bonita Reservoir, in
the ...
Morfologia da copa e crescimento de espécies arbóreas de cerrado em campo e em câmaras de topo aberto sob elevada concentração de CO2
(Universidade Federal de São Carlos, 2020-06-01)
The Cerrado is a vegetation complex marked by climatic seasonality. It is savanna vegetation with the highest biodiversity in the world, the second-largest biome complex in South America, and the most significant hotspot ...
Comparação de ciclagem de nutrientes em pastagens convencionais, sistemas silvipastoris e floresta estacional semidecídua
(Universidade Federal de São Carlos, 2019-05-10)
Silvopastoral systems combine trees, pastures and livestock. Cattle production systems cause fewer ecosystem effects compared to conventional pasture systems. The cycle of organic capacity has an essential role, once that ...
Construção de múltiplos ninhos como estratégia reprodutiva para o Garibaldi, Chrysomus ruficapillus (Aves, Icteridae)
(Universidade Federal de São Carlos, 2019-06-04)
The main function of bird's nests is to provide protection for eggs and young, and due the high risks of predation, nests are under intense natural selection. Nest construction is time and energetically costing, which ...
Descrição de uma zona híbrida e mecanismos de isolamento reprodutivo entre duas espécies de caboclinhos (Sporophila Pileata e S. Bouvreuil) (aves: passeriformes) e suas implicações para conservação
(Universidade Federal de São Carlos, 2018-09-13)
Hybridization is often a natural process that plays an important role in the evolutionary process among many species. On the other hand, when human environmental changes cause the phenomenon, it can result in detrimental ...