Results 51 to 60 of about 970,387 (167)

Hyperdominant Trees Reveal Savanna Vulnerability Under Climate Change

open access: yesGlobal Change Biology, Volume 32, Issue 4, April 2026.
The Brazilian Cerrado's forest structure relies disproportionately on just 30 hyperdominant tree species, which represent 50% of all individuals despite accounting for only 2% of species richness. This study evaluates their vulnerability under climate change scenarios for 2100.
Facundo Alvarez   +32 more
wiley   +1 more source

Spatial distribution and functional feeding groups of aquatic insect communities in Serra da Bocaina streams, southeastern Brazil Distribuição espacial e categorização funcional trófica de comunidades de insetos aquáticos em rios na Serra da Bocaina, Sudeste Brasil

open access: yesActa Limnologica Brasiliensia, 2010
AIM: The aim of this paper was to study the spatial distribution and functional feeding structure of aquatic insect communities of 18 streams at different altitudes in Mambucaba River Basin, Serra da Bocaina, Southeastern Brazil; METHODS: Samples were ...
Ana Lucia Henriques de Oliveira   +1 more
doaj   +1 more source

Procedimento de distribuição de estupefacientes e psicotrópicos no Centro Hospitalar de São João, EPE [PDF]

open access: yes, 2012
Introdução: A distribuição de medicamentos estupefacientes e psicotrópicos exige um tipo de distribuição especial, dada as suas características particulares.
Carinha, Paulo Horta   +4 more
core  

A micromorphological evaluation of pedogenesis on Isla Santa Cruz (Galápagos) [PDF]

open access: yes, 2013
Thin sections of about 200 horizons or layers, representing 60 soil profiles in the coastal area and on the windward slopes of Isla Santa Cruz (Galápagos Islands) were analysed.
Stoops, Georges
core   +2 more sources

Abundance and Seasonal Dynamics of Guiana Dolphins (Sotalia guianensis) in Southern Brazilian Estuarine and Adjacent Coastal Waters

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Estimating population parameters is crucial for understanding species dynamics and assessing anthropogenic impacts, thereby supporting conservation efforts. We evaluate key population parameters—group structure, abundance and capture–recapture probabilities—of the Guiana dolphin in the Paranaguá Estuarine Complex and adjacent coastal waters ...
Stephane P. G. de Moura   +3 more
wiley   +1 more source

ANÁLISE DAS CAPTURAS DE ATUNS E AFINS PELOS MÉTODOS DE VARA E ISCA VIVA E CORRICO REALIZADAS PELO N / Pq Malacostraca DE 1980 A 1991

open access: yesBoletim do Instituto de Pesca, 2018
Este trabalho apresenta a análise das capturas realizadas pelos métodos de vara e isca-viva e corrico em diversos cruzeiros de pesquisa realizados a bordo do N/Pq Malacostraca no perí­­odo de 1980 a 1991, ao largo das costas sudeste e sul do Brasil ...
Antônio Olinto Á VILA à DA à SILVA   +1 more
doaj  

Polarização da Renda no Brasil, de 2001 a 2011: uma análise distribucional usando os dados PNAD [PDF]

open access: yes, 2015
2noEsse artigo aplica uma ferramenta não paramétrica, a "distribuição relativa", para identificar padrões de mudanças na distribuição de renda familiar durante o período de 2001 a 2011 no Brasil.

core  

SOLO MOTHERS AND NEW FORMATIONS OF COLLECTIVE LIFE IN SÃO PAULO'S PERIPHERIES

open access: yesCultural Anthropology, Volume 41, Issue 1, Page 163-187, February 2026.
ABSTRACT In 2010 in the city of São Paulo, 37 percent of mothers were solo mothers, compared to 16 percent in 1960. This meant that more than 1 million women in 2010 were raising their children without a partner. The increase in solo motherhood is not an isolated phenomenon, but part of deep transformations that have reshuffled entrenched formations of
TERESA P. R. CALDEIRA
wiley   +1 more source

Distribuição de Arenaeus cribrarius (Lamarck, 1818) (Decapoda, Brachyura) no complexo baí­­a - estuário de São Vicente (SP), Brasil

open access: yesBoletim do Instituto de Pesca, 2018
O objetivo do presente estudo foi analisar a distribuição de Arenaeus cribrarius (Lamarck, 1818) no Complexo Baí­­a-Estuário de São Vicente, SP, Brasil. As coletas foram realizadas mensalmente em quatro transectos durante o perí­­odo de setembro de 2000
Cilene Zangrande   +2 more
doaj  

Competitor Richness Outweighs Climate and Land Cover in Explaining Abundance Variation of a Neotropical Fruit Bat

open access: yesAustral Ecology, Volume 51, Issue 1, January 2026.
ABSTRACT Understanding which processes regulate spatial variation in species abundance across their ranges is key in ecology. Species abundances may be affected by several factors, such as climate, elevation, land cover, species interactions and habitat protection status. However, few studies have focused on these effects synergistically across species
Marcelo de Moraes Weber, Artur Malecha
wiley   +1 more source

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