Júlio César dos Santos Lima

University of São Paulo | USP · Center of Cience and Environmental Engeneering

The ecotoxicity of metals is generally assessed individually, in part because current knowledge does not allow for the accurate prediction of the toxicity of metal mixtures to aquatic organisms. The objective of this study was to investigate the toxic effects of binary combinations of metal salts (copper sulphate-CuSO 4 , cadmium chloride-CdCl 2 ,...

Predation is known to play a prominent role in maintaining ecosystem structure and functioning. Despite metals being known to potentially affect predation in aquatic ecosystems, few studies have been conducted, so far, with the aim of evaluating this interplay. In the present study, the effects of four metal salts (copper, cadmium, mercury, and man...

Body size has a strong influence on the ecology and evolution of organisms’ life history. Turtle species can exhibit variation in body size and shape between populations of conspecifics through usually broad geographical scales. This prediction is timely to be tested in this study with the species Hydromedusa tectifera. We aimed to evaluate the var...

Resumo Este estudo foi realizado em um remanescente florestal com predomínio de Mata Atlântica na Fundação Jardim Botânico de Poços de Caldas, MG. A área possui aproximadamente 50 ha com vegetação típica de campos de altitude, onde os remanescentes de floresta estacional semidecidual estão restritos a fragmentos e matas ciliares. As amostragens se...

The toxicity of metals, whether isolated or in mixtures, involves changes in biochemical processes as well as in cell membranes, which may lead to deleterious short- and long-term effects on the affected organisms. Among metals, cadmium and mercury stand out due to their abundance in nature, frequent use for industrial activities and biological acc...

As compared to their temperate counterparts, few toxicity tests have been conducted so far into the evaluation of the sensitivity of indigenous tropical species to pesticides. Especially mixture toxicity assessments appear to be scarce. To contribute to increase our knowledge in this arena, we evaluated the acute toxicity of diuron and carbofuran a...

Este estudo teve por objetivo contribuir com novos registros da espécie exótica Corbicula flumínea no Rio Manhuaçú, Minas Gerais. Para amostragem foram investigados diferentes ambientes ao longo do rio, nos períodos chuvoso e seco de 2014. Foram encontrados 147 indivíduos. O comprimento variou de 0,1 cm e 1,6cm e o peso total obteve amplitude de 0,...

The aim of this paper was to study the life cycle, the annual secondary production, and the spatial and temporal variation of the species Campsurus truncatus and C. violaceus in two reservoirs in Minas Gerais, Brazil. Campsurus truncatus was recorded in 11 months and had a multivoltine lifecycle with a secondary production of 4.61 g.m⁻².year⁻¹. Cam...

DOWNLOAD this article in Blog Alex Bager (http://bab.empreendedor-academico.com.br/). Body size is an important parameter for ecology, reproduction, evolution, and development of animal species, besides understanding their taxonomic relationships and to establishing the relationships between individual size and shape. We evaluated the variation in...

The present work reports the finding of an introduced annelid, Lumbriculus variegatus Müller, 1774, in freshwaters of Minas Gerais (Brazil). The Family Lumbriculidae has a Holartic distribution and in recent years was introduced in aquatic environments of Patagonia (Argentina). This is the first report of the family in Brazil. The samples were coll...