Results 31 to 40 of about 4,790 (125)
Climate Predicts Tree Dispersal Strategies Across Brazil's Ecosystems
ABSTRACT Aim We investigate the distribution of dispersal modes—endozoochory (via animal ingestion), synzoochory (via animal seed accumulation) and anemochory (via wind)—and seed mass of woody plants across Brazilian ecosystems, testing whether their relative abundance in local plant communities could be predicted by climate, edaphic factors and ...
Fernanda C. Souza +126 more
wiley +1 more source
Amazonia and Cerrado are the largest Brazilian biomes that have been affected by the clear-cutting of native vegetation. This study analyzed the deforestation in Tocantins state in Brazil from 2006/2007 to 2010/2011.
Gustavo Maximiano Junqueira Lazzarini +4 more
doaj
Abstract Reports of teratogenic embryos in elasmobranchs have been documented in multiple species, with proposed aetiologies including environmental disturbances, genetic mutations, predation, exposure to endocrine‐disrupting compounds and maternal stress.
Douglas de Castro Ribeiro +2 more
wiley +1 more source
ABSTRACT This paper presents the first documented case of a fixed bone dental bridge in Portugal. This item was recovered alongside the remains of a young adult individual of indeterminate sex from the 19th century burial site of the 3rd Order of Our Lady of Carmo in Porto, Portugal.
Steffi Vassallo +8 more
wiley +1 more source
Tellurite glasses with the composition (in mol%) (100-x)(75TeO2:25Li2O):xAgNO3 (x = 0, 0.6, and 1.2) were synthesized at 800 °C in an ambient atmosphere, for investigation of the influence of Ag nanoparticles on the Te4+ semi metal ion photoluminescence (
Adriana do Carmo Capiotto +4 more
doaj +1 more source
Unusual occurrence of Cochlichnus in aeolian sandstones: evidence for a stiletto fly larval origin
Abstract Cochlichnus anguineus is an ichnotaxon recognized for its distinctive regular wavy morphology. It is a characteristic trace fossil typically associated with aquatic and marginal aquatic environments. However, in this study we examine its unusual occurrence in the aeolian sandstones of the Botucatu Formation (Lower Cretaceous, Paraná Basin ...
Bernardo de C. P. e M. Peixoto +8 more
wiley +1 more source
Severe frost events seem to be happening on average every 5 years, rather than 7 years, as previously reported in the southern limit of the Cerrado, a Neotropical savanna. We conducted this study in the Cerrado, where severe frost events allowed us to compare fruit production and frugivorous bird abundance before and after the disturbance.
Mariana Campagnoli +2 more
wiley +1 more source
The aim of this study was to evaluate the phytotoxic activity of aqueous extracts from mature leaves, stem bark and roots of Drimys brasiliensis Miers on germination and initial seedling development of two target species, Triticum aestivum L. (wheat) and
Simoni Anese +4 more
doaj +3 more sources
RESUMO O trabalho caracterizou três surgências em microbacia (0,72 km2) situada no município de Itamonte, sul de Minas Gerais. A microbacia é composta por rochas gnáissicas do Complexo Paraíba do Sul, e blastomilonitos do falhamento local.
Edgar Pane, Sueli Yoshinaga Pereira
doaj +1 more source
Actions and omissions in the management of demolition and construction waste in Caraguatatuba, SP
Civil construction is one of the most significant activities for the social and economic development of the country. However, in the traditional construction process, the intense generation of demolition and construction waste (DCW) has caused negative ...
Nicole de Castro Pereira +1 more
doaj +1 more source

