Luiz Carlos Ruiz Pessenda

• Abstract

  Studies based on sedimentary features, pollen content, isotopic and radiocarbon dates have allowed to evaluate the influence of allogeneic mechanisms (sea level fluctuations, climate changes, tectonism,) and autogenic mechanisms (e.g. abandonment and reactivation of channels) on the dynamics of wetlands in the interior of the Amazon and mangroves along the Brazilian coast. Such interdisc…

  Dynamics of American mangroves at austral and boreal limits on secular and decadal scales, AP.R

• Abstract

  During the last century the global sea level raised 1.7 mm/yr with a sea level rise up 3 mm/yr during the last decades (Bindoff et al., 2007). Recent studies indicate an accelerated sea level rise between 1.8 and 2.4 mm/yr and an increase of the sea surface temperaturebetween 1 and 3°C by the end of this century (Church et al., 2013). Mangroves occur on the transition land/sea and along l…

  Impacts of climate changes and sea-level fluctuations in the Brazilian mangroves in secular and millennial scales, AP.PFPMCG.R

• Abstract

  This research project proposes a paleoenvironmental interdisciplinary study since the late Pleistocene for the Espírito Santo coast, southeastern Brazil. One of the study sites comprises the northern region of Espírito Santo State, municipalities of Linhares and Sooretama, where Atlantic forest reserves occur. Two approaches that seek to explain the current vegetation diversity will be st…

  Interdisciplinary paleoenvironmental studies in the Espirito Santo State coast, AP.PFPMCG.TEM

(Only some records are available in English at this moment)

• Abstract

  Recent studies indicate a sea level rise up to around 1m until the end of the century and anexpressive 4°C global warming. Extremely sensitive to environment changes of temperature,salinity and substrate, mangroves must face changes in their space distribution, changing theentire dynamic. Based on the hypothesis that these changes may be causing the migration ofthe mangrove to temperate l…

  DYNAMICS OF MARAPANIM (PA) MANGROVES ON SECULAR AND DECADAL SCALES THROUGH MULTY-PROXY ANALYSIS, BP.MS

• Abstract

  This project aims to characterize and identify trace evidence (pollen and spores grains, diatoms and phytoliths) found at surface sediment/soil samples and to evaluate the use of these materials in the forensic context. The study will be conducted in the city of Piracicaba/SP, on the bank of the city's main river, where three points of collection of surface sediment/soil samples will be e…

  Analysis of trace evidences in sediments and soils at points on the banks of the Piracicaba River and evaluation of its forensic potential, BP.IC

• Abstract

  Global climate change results in changes in precipitation patterns, which can have dramatic effects on aquatic and terrestrial ecology. In order to create mitigation strategies is required a deep understanding of the mechanisms and rates of climate change. Lakes and wetlands are sentinels of environmental changes because their sediments and water columns serve as sensitive records of the …

  Palaeoenvironment, palaeovegetation and palaeoclimate of lower Nhecolandia region, Pantanal, Brazil, BP.PD

(Only some records are available in English at this moment)

• Abstract

  Several previous studies have confirmed the importance of the D/H ratio [deuterium (2H or D) and hydrogen (H)] in compound-specific extracted from lacustrine sediments such as paleohydrological proxies. Innovative analytical methods demonstrated that the hydrogen-isotopic composition of individual lipids from aquatic and terrestrial organisms is strongly correlated with rainwater composit…

  Late Quaternary hydroclimatic reconstruction based on compound-specific hydrogen isotope ratios in lake sediments, southeastern Amazonia, BE.EP.DR
• Impact of urban recharge on long-term management of Santiago Norte aquifer, Santiago, Chile, BE.PQ