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Vegetação de cerrado e conservação : relação entre teorias, influência da escala e variação espacial
(Universidade Federal de São Carlos, 2014-06-09)
A community can be defined purely as a group of individuals in a certain area? Since the beginning of ecology as a science, many authors have proposed theories to explain the structure of plant communities and therefore ...
Análise de predação intraguilda em alfafa
(Universidade Federal de São Carlos, 2015-09-11)
Aphids are considered as pests in several crops causing direct and indirect damage to the plants. In alfalfa fields (Medicago sativa), the species Acyrthosiphon pisum, Acyrthosiphon kondoi, Aphis craccivora and Therioaphis ...
Biodiversidade de Selenastraceae (Sphaeropleales, Chlorophyceae) : características morfológicas e sequenciamento dos marcadores moleculares 18S rDNA, rbcL e ITS como base taxonômica tradicional
(Universidade Federal de São Carlos, 2016-02-04)
The phylogeny of the family Selenastraceae was investigated by light microscopy, molecular analysis of 18S rDNA, rbcL, ITS1-5.8S-ITS2 and ITS-2 markers. Several morphological features traditionally used for identification ...
Efeitos dos agrotóxicos diuron e carbofuran, isolados e em mistura, sobre organismos aquáticos e avaliação de risco ecológico
(Universidade Federal de São Carlos, 2016-03-21)
The aim of this study was to evaluate the effects of diuron and carbofuran, isolated and mixed, on Raphidocelis subcapitata, Paramecium caudatum and Ceriodaphnia silvestrii and carry out a preliminary risk assessment of ...
Lectinas : caracterização quimiotaxinomica de microalgas de água doce
(Universidade Federal de São Carlos, 2016-02-02)
Freshwater green microalgae are a group which present great complexity for classical morphological taxonomy. For groups like Selenastraceae family, the morphological characteristics are ambiguous at genus level and do not ...
Comunidade de macroinvertebrados bentônicos do rio Madeira e tributários no trecho de construção da UHE Santo Antônio do Madeira, Rondônia, Brasil
(Universidade Federal de São Carlos, 2016-03-18)
The construction of hydroelectricity power plants in lotic systems promote changes in the morphological and functional characteristics of these ecosystems, also leading to changes in the structure and dynamics of biological ...
Influência da composição química foliar na colonização por larvas de Chironomidae (Diptera) durante a decomposição em riachos
(Universidade Federal de São Carlos, 2016-03-04)
With the purpose of elucidating some aspects concerning the influence of leaf chemical composition on Chironomidae (Diptera) larvae colonization and their role in decomposition, field experiments were carried out here ...
Potencial fitotóxico, antifúngico e antioxidante de extratos foliares de Myrcia splendens (Sw) DC. (Myrtaceae)
(Universidade Federal de São Carlos, 2015-03-27)
During its evolutionary process, plants have developed biosynthetic pathways by which they produce and accumulate a wide variety of secondary compounds that receive this name because they are not directly involved in the ...
Influência de fatores históricos e da fragmentação do habitat sobre a diversidade genética de Pseudoplatystoma corruscans (Siluriformes: Pimelodidae)
(Universidade Federal de São Carlos, 2015-06-08)
The populations of Neotropical inland fishes have the distribution of their genetic diversity influenced by historical and recent biogeographic factors. Natural barriers such as the formation of waterfalls can disrupt gene ...
Toxicidade, eficácia e efeitos morfofuncionais do antimicrobiano azitromicina para a tilápia Oreochromis niloticus
(Universidade Federal de São Carlos, 2015-08-24)
The increase of fish production in intensive systems involves the use of antimicrobians in the treatment of diseases caused by bacteria. Therefore, the aim of this study was to evaluate acute toxicity (CL50; 48h) of the ...