Seletividade de herbicidas aplicados na grama Batatais e na grama São Carlos

Objetivou-se avaliar a seletividade de herbicidas aplicados na grama Batatais (Paspalum notatum) e na grama São Carlos (Axonopus compressus) em campo. O delineamento experimental utilizado foi o de blocos casualizados com quatro repetições. As gramas foram cortadas a 3 cm de altura e, em seguida, realizaram-se as aplicações dos herbicidas. Os tratamentos utilizados foram: testemunha (sem aplicação), fluazifop-p-butil (125 g ha-1), sethoxydim+óleo mineral (276 g ha-1 + 0,5% v v-1 de Assist), bispyribac-sodium (25 g ha-1), chlorimuron-ethyl (15 g ha-1), ethoxysulfuron (150 g ha-1), halosulfuron (112,5 g ha-1), iodosulfuron-methyl (10 g ha-1), metsulfuron-methyl (2,4 g ha-1), nicosulfuron (125 g ha-1), pyrithiobac-sodium (140 g ha-1), trifloxysulfuron-sodium (22,5 g ha-1), 2,4-D (720 g ha-1), quinclorac (375 g ha-1), atrazina (1.250 g ha-1), bentazon (600 g ha-1), linuron (1.350 g ha-1), fomesafen (187,5 g ha-1), lactofen (120 g ha-1), oxadiazon (600 g ha-1) e oxyfluorfen (720 g ha-1). Os herbicidas que apresentaram potencial de seletividade para o gramado de P. notatum foram o chlorimuron-ethyl, ethoxysulfuron, pyrithiobac-sodium, 2,4-D, bentazon e fomesafen; já para o gramado de A. compressus foram o chlorimuron-ethyl, ethoxysulfuron, halosulfuron, iodosulfuron-methyl, metsulfuron-methyl, pyrithiobac-sodium, 2,4-D, quinclorac, atrazina, bentazon, além do fomesafen.

A model for the plankton system of the Broa reservoir, Sao Carlos, Brazil

In this paper a model, called ELLOBO running in STELLA II, was set to describe the plankton system of the Broa reservoir (SP). The three state variables of the model are: phytoplankton, zooplankton, and the fish Astyanax fasciatus. The forcing variables are: temperature, nitrate, phosphorus and solar radiation. The model did not consider the cycling of nutrients inside the reservoir. The results show that: temperature is the principal forcing variable in the phytoplankton dynamic and in the subsequent evolution of the whole system. The zooplankton predation was described by Odum's equation, and there is a strong random component in zooplankton grazing, which was essential for the model, because zooplankton estimates have high variance. One must collect data in a short space of time (maybe daily) to better explain the zooplankton and phytoplankton variation. Validation was performed using simple statistics (arithmetic mean, standard deviation) and the results show concordance between observed and simulated values. Overhead was used to calibrate some parameters and to validate the model. The highest overhead value (5%) imply in the better accordance between estimated and;observed state variables values. We believe this approach in Broa reservoir will provide an useful tool for future research and it could be used comparatively in other continental aquatic ecosystems. (C) 2000 Elsevier B.V. B.V. All rights reserved.

Mamíferos não voadores do Parque Estadual Carlos Botelho, Continuum florestal do Paranapiacaba

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Anurans of a riparian forest in São Carlos, state of São Paulo, Brazil

No presente estudo foi realizado um inventário das espécies de anfíbios anuros que ocorrem em um fragmento de mata ciliar do Córrego do Espraiado, localizado na Universidade Federal de São Carlos (UFSCar), Município de São Carlos, estado de São Paulo, sudeste do Brasil. Durante os meses de março de 2009 a fevereiro de 2010 foram realizadas saídas de campo semanais nas quais foram registradas 13 espécies de anuros. A atividade reprodutiva das espécies de anuros componentes da comunidade estudada mostrou-se sazonal, sendo que houve correlação positiva e significativa entre o número de espécies em atividade reprodutiva e o fotoperíodo. Verificamos que a comunidade estudada mostrou-se mais semelhante a comunidades de anuros de florestas de transição entre Mata Atlântica e Cerrado do que a fragmentos de Cerrado próximos da região.

Herpetofauna do Parque Estadual Carlos Botelho, São Paulo, Brasil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Consumo dos frutos de Davilla rugosa (Dilleniaceae) por aves numa área de cerrado em São Carlos, Estado de São Paulo

Fruits have been considered an important feeding resource used not only by frugivorous birds, but also by omnivore and some insectivore species. In the present paper we are reporting the behavior of birds consuming fruits of Davilla rugosa (Dilleniaceae). Handling behavior and visits frequency were analyzed in order to infer about the potential ornithochoric seed dispersal. Focal observations were carried out from October to December 1999 in a cerrado fragment located in São Paulo State, Southeastern Brazil (21°58′S, 47°52′W). In 60 h of field work we recorded 241 visits of 13 passerine bird species consuming the fruits. The mean number of visits per hour and the standard deviation were 4.01 ± 4.88. All of the species were considered potential seed dispersers, since no pulp mashers or seed predators were observed. No temporal difference in visit frequency was found when all of the species were analyzed together or when they were individually considered. Generalist species were responsible for 68.5% of the visits, followed by frugivorous (22.82%) and insectivorous (8.71%). The main potential seed dispersers were Elaenia spp. (Tyrannidae), Tangara cayana (Emberizidae), Empidonomus varius (Tyrannidae), Turdus leucomelas (Muscicapidae) and Vireo chivi (Vireonidae). The high visit frequency observed suggests that D. rugosa fruits may be an important feeding resource for birds in the cerrado ecosystem, in the manner that this plant can be considered in management plans which intent to maintain or rescue bird communities.

Prevalência de reagentes ao teste de tuberculinização no rebanho bovino leiteiro da região de São Carlos - SP

Tuberculosis (TB), an infectious disease readily transmitted between animals and humans, is an great threat to public and animal health a like and has been declared an international emergency. According to the WHO, animal TB is a source of much concern, especially in the poorer countries where there is little awareness of the problem. Thus, improvements in veterinary health are essential, with regard to infection by Mycobacterium bovis, particularly in areas where the public is at risk. The prevalence of infected animals in Brazil is about 1%, whereas, in the dairy cattle region of São Carlos, the average proportion of positive tests was found to be 3. 1% from 1987 to 1996. The current research was carried out to investigate the prevalence, in the region, of dairy cattle reacting positively to the tuberculin test, from 1997 to the first half of 2001. The results were obtained by searching through the data collected by the Federal Inspection Authority, and they indicated an average prevalence of 1.3% over the period, similar to the official national average. It was concluded that bovine TB continues to be present in the region, posing a potential threat of infection to the human population.

Evaluation of neighborhood impacts caused by companies of the high-tech industrial cluster of São Carlos, SP, Brazil

The purpose of this study was to develop a methodology for evaluating neighborhood impacts using a Geographic Information System (GIS) and to apply the procedures to the companies of the High-Technology Industrial Cluster of São Carlos. To this end, an evaluation was made of the neighborhood impacts on the physical environment, urban components, quality of life, and urban infrastructure using impact matrices, and the impacts were assigned scores according to type, order, magnitude and duration. Fifty one companies were examined based on data provided by the companies themselves and on field surveys. The impacts are represented spatially in proportional symbols maps, based on the spatial distribution of the companies in the urban area of the city of São Carlos and the areas of influence of each company. The application of the proposed methodology served to validate it and indicated that the neighborhood impacts caused by the companies of this study are related to each company's type of activity, its size, and its occupation of the area. © 2008 Journal of Urban and Environmental Engineering (JUEE). All rights reserved.

O processo de construção referencial nas crônicas de temas políticos escritas por Carlos Heitor Cony

Pós-graduação em Estudos Linguísticos - IBILCE

Bodas de Sangue, de Carlos Saura: releitura do musical clássico

Pós-graduação em Artes - IA

Qualidade da água utilizada para consumo em escolas no município de São Carlos-SP

Pós-graduação em Alimentos e Nutrição - FCFAR

A recepção das ideias estético-literárias de Lukács em Leandro Konder e Carlos Nelson Coutinho: análise de suas produções teórico-críticas

Pós-graduação em Ciências Sociais - FCLAR

A educação ambiental em escolas de ensino fundamental e médio do município de São Carlos - SP

Pós-graduação em Educação - IBRC