Do woody and herbaceous species compete for soil water across topographic gradients? Evidence for niche partitioning in a Neotropical savanna

Savannas are characterized by sparsely distributed woody species within a continuous herbaceous cover, composed mainly by grasses and small eudicot herbs. This vegetation structure is variable across the landscape, with shifts from open grassland to savanna woodland determined by factors that control tree density. These shifts often appear coupled with environmental variations, such as topographic gradients. Here we investigated whether herbaceous and woody savanna species differ in their use of soil water along a topographic gradient of about 110 m, spanning several vegetation physiognomies generally associated with Neotropical savannas. We measured the delta H-2 and delta O-18 signatures of plants, soils, groundwater and rainfall, determining the depth of plant water uptake and examining variations in water uptake patterns along the gradient. We found that woody species use water from deeper soil layers compared to herbaceous species, regardless of their position in the topographic gradient. However, the presence of a shallow water table restricted plant water uptake to the superficial soil layers at lower portions of the gradient. We confirmed that woody and herbaceous species are plastic with respect to their water use strategy, which determines niche partitioning across topographic gradients. Abiotic factors such as groundwater level, affect water uptake patterns independently of plant growth form, reinforcing vegetation gradients by exerting divergent selective pressures across topographic gradients. (C) 2013 SAAB. Published by Elsevier B.V. All rights reserved.

Population biology and distribution of the portunid crab Callinectes ornatus (Decapoda: Brachyura) in an estuary-bay complex of southern Brazil

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

Ecosystem fragmentation drives increased diet variation in an endemic livebearing fish of the Bahamas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Video mapping: um estudo teórico e prático sobre projeção mapeada

The project presents an explanation of the technique of video mapping, resource use, origin and use of the strands. Also conducts multidisciplinary literature review of concepts that can be applied to the technique of video mapping: Augmented Reality, Spatiality in Virtual and Real Environments. The project also introduces aspects of the history of cinema and audiovisual narrative. In addition conducts an inventory of software and hardware required for the technique of video mapping, reports performing experiments with the use of the technique and discusses the results obtained. As a contribution to development area, proposes to use video mapping as an augmented reality tool at an immersive experimental film language

Revista Bauru animal

The theme of this project is the animal world, focusing on Bauru. The magazine Bauru Animal was born from the lack of publications addressing the issue of animals under the focus of their rights in this county. The treatment we give to animals is an important ethical and moral issue that should be discussed by the press. In Bauru there is an animal protection movement, whether organized or independent people. And there are many problems about the animals. The intent of the magazine is to report the status of animals in the city, checking legislation and getting into the philosophical field: we have the right to treat animals as mere environmental and economic resource? For the preparation of the materials were performed several interviews, documented in audio files and performed with the authors' theoretical Cremilda Medina and José Carlos Sebe Bom Meihy. The animal issue is cross-cutting issue that involves all traditional media editorials and allows public bodies to discuss assignments, ethical, moral and legal, the role of the citizen in society and many other issues relevant to the media

Estrutura da comunidade de Serpentes da Região da Fazenda Etá

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

THE EVOLUTIVE SIGNIFICANCE OF POLLEN USE AS PROTEIN RESOURCE BY TRIGONINI BEES (HYMENOPTERA, APIDAE, MELIPONINAE)

The origin of bees was marked by the change from the use of animal of vegetal protein to feed the larvae. The advantages of this change and the existence of some necrophagous species among the bees is discussed regarding to the poor digestibility of pollen.