Results 91 to 100 of about 233,486 (264)

Aspectos do Espaço Tupinambá no Leste Amazônico

open access: yesRevista de Arqueologia, 2008
Durante a análise dos sítios Cavalo Branco e Nova Ipixuna 3, no leste Amazônico, onde identifcou-se cerâmica Tupinambá3, começamos a comparar as semelhanças e diferenças referentes à indústria cerâmica, às dimensões e a densidade de material arqueológico
Fernando Ozório de Almeida   +1 more
doaj   +1 more source

Stable isotope data indicate origins of mislabelled historical bird specimens

open access: yesIbis, EarlyView.
Natural history specimens provide valuable insights across diverse research fields, but those needing more accurate metadata have limited scientific value. We applied stable isotope analysis to investigate the origin of 19th century Atlantic Forest bird specimens attributed to the northeastern Brazilian state of Pernambuco, which are the only records ...
Rafael Dantas Lima   +4 more
wiley   +1 more source

How much sampling is enough? Four decades of understorey bird mist‐netting across Amazonia define the minimum effort to uncover species assemblage structure

open access: yesIbis, EarlyView.
Mist‐net sampling comprises a key methodological component of assemblage‐wide avifaunal studies, particularly in the understorey of closed‐canopy tropical forests. To investigate mist‐net bird captures and species assemblage structure, we compiled data from 312 sites across the Pan‐Amazon.
Pilar L. Maia‐Braga   +14 more
wiley   +1 more source

Not everyone is shrinking: increases in body mass and wing length in a Sand Martin (Riparia riparia) population in northwestern Italy over two decades

open access: yesIbis, EarlyView.
In recent decades, vertebrates, particularly birds, have exhibited notable morphological changes in response to climate change. In birds, these temporal trends usually entail a decrease in body mass and an increase in wing length, sometimes interpreted as a compensatory strategy to maintain migration.
Giulia Masoero, Alberto Tamietti
wiley   +1 more source

Rarity of monodominance in hyperdiverse Amazonian forests. [PDF]

open access: yes, 2019
Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such "monodominant" forests are known from all of the main tropical regions. For Amazonia, we sampled the occurrence
Alonso, Alfonso   +99 more
core  

Changes in Family Production Systems upon the Implementation of Palm Oil in Eastern Amazon

open access: yesDesenvolvimento e Meio Ambiente, 2017
In this article, we analyze the changes in family production systems throughout their productive paths, emphasizing the changes occurred due to the implementation of palm oil in these systems in Eastern Amazon.
Edfranklin Moreira da Silva   +1 more
doaj   +1 more source

Effect of land use change on Melolonthidae (Coleoptera: Scarabaeoidea) beetle communities in the deforestation arc of the Brazilian Amazon

open access: yesInsect Conservation and Diversity, EarlyView.
Habitat transformation in Amazon due to agriculture expansion impairs Melolonthidae diversity. Assemblage response towards habitat transformation are group‐dependent. Although highly disturbed, Amazon arc of deforestation region dwells sensitive insect assemblages. Abstract Although the Amazon provides crucial goods and ecosystem services for humanity,
Kleyton Rezende Ferreira   +4 more
wiley   +1 more source

Reducing the deforestation of the Amazon through farming system intensification [PDF]

open access: yes, 2008
The Amazon has become the last Far West of the planet. Today, the attention is focused on some sectors in which the region plays a major role: the mineral richness of the soil - especially hydro fuels - biodiversity, climate change and the coca ...
Bommel, Pierre   +5 more
core  

Copaiba Oil–Resin Reduces the Alveolar Bone Damage Triggered by Apical Periodontitis in Rats

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Aim This study aimed to investigate the effects of copaiba oil–resin on induced apical periodontitis in rats. Methodology A total of 24 male Wistar rats were divided equally into three groups (eight animals each): control (C), apical periodontitis (AP) and apical periodontitis with copaiba administration (AP + COP).
Rayssa Maitê Farias Nazário   +11 more
wiley   +1 more source

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