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Now showing items 11-20 of 241
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 de variáveis físicas e químicas na decomposição de recursos vegetais terrestres alagados em reservatórios
(Universidade Federal de São Carlos, 2011-06-08)
Reservoirs provide many benefits (e.g. recreation, water supply, electricity production) to human populations. However, the damming of a water body changes the characteristics from lotic to lentic environment. These changes ...
Educação ambiental em zoológicos do nordeste paulista para a conservação da onça parda (Puma concolor) : reflexões sobre atividades e estruturas educadoras
(Universidade Federal de São Carlos, 2015-05-05)
Zoos house many specimens of native fauna and have great potential to contribute to Environmental Education for biodiversity conservation. However, some studies have pointed that even when these institutions carry on ...
Toxoptera citricidus (Kirkaldy,1907) (HEMIPTERA : APHIDIDAE) : aspectos biológicos e respostas às ações de bioinseticidas
(Universidade Federal de São Carlos, 2015-09-11)
Aphids are important pests in agriculture, mainly because they are vectors of phyto-pathogenic virus. One of the ways to control these insects, is the use of botanical insecticides. However in order to the control to be ...
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 ...
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 ...
Busca de extratos e compostos ativos com potencial herbicida e inseticida nas espécies Davilla elliptica St. Hill e Ocotea pulchella Nees & Mart
(Universidade Federal de São Carlos, 2016-03-16)
Brazil by presenting incomparable biodiversity, distributed in mosaic wonderfully distinct biomes becomes a promising the field of study in seeks of new phytochemicals extracted from native plants with biological activity ...
Diversidade funcional e estratégias nutricionais de espécies arbustivo-arbóreas de cerrado e floresta estacional
(Universidade Federal de São Carlos, 2016-03-04)
Soil fertility is one of the main determinants of the abrupt boundaries between the cerrado
and the seasonal forest. Given that the remaining patches of cerrado are surrounded by
agricultural matrices and may be impacted ...