Results 61 to 70 of about 146,432 (259)

Frequent rainfall-induced new particle formation within the canopy in the Amazon rainforest

Nature Geoscience
Atmospheric aerosol particles are essential for forming clouds and precipitation, thereby influencing Earth’s energy budget, water cycle and climate on regional and global scales. However, the origin of aerosol particles over the Amazon rainforest during
Luiz A. T. Machado, G. Unfer, Sebastian Brill, Stefanie Hildmann, C. Pöhlker, Yafang Cheng, Jonathan Williams, Harder Hartwig, M. Andreae, P. Artaxo, J. Curtius, M. A. Franco, M. Cecchini, A. Edtbauer, Thorsten Hoffmann, Bruna Holanda, Théodore Khadir, R. Krejci, L. Kremper, Yunfan Liu, B. Meller, M. Pöhlker, C. A. Quesada, A. Ringsdorf, I. Riipinen, S. Trumbore, S. Wolff, J. Lelieveld, U. Pöschl   +28 more
semanticscholar   +1 more source

Method for Lignin Analysis in Wood by Fluorescence Microscopy

Microscopy Research and Technique, EarlyView.
Autofluorescence in extractive‐free wood slides is a promising approach for investigating the relationship between fluorescence intensity and lignin content, particularly when combined with automated photomicrograph analysis using ImageJ. ABSTRACT Native Amazonian species present high anatomical variation which is reflected in their lignin content ...
Josy Tainara Silva Silva, Silvino Intra Moreira, Jordão Cabral Moulin   +2 more
wiley   +1 more source

Simulated sensitivity of the Amazon rainforest to extreme drought

Environmental Research Letters
The Amazon rainforest is highly biodiverse and has the largest extent of the remaining intact tropical forests in the world. To this day, undisturbed tropical forests act as a carbon sink by taking up about 15% of anthropogenic carbon emissions per year.
Philip Papastefanou, Thomas A. M. Pugh, A. Buras, K. Fleischer, T. E. Grams, T. Hickler, D. Lapola, Daijun Liu, Christian S. Zang, A. Rammig   +9 more
semanticscholar   +1 more source

Taxonomy and diversity of Marcgraviaceae, north of the São Francisco river, northeast Brazil

Nordic Journal of Botany, EarlyView.
This study provides a comprehensive assessment of Marcgraviaceae species diversity north of the São Francisco river in northeastern Brazil, analyzing species richness and distribution patterns across 384 000 km² of phytogeographic domains. Through field collections, herbarium studies (both physical and digital), and detailed morphological analyses, we ...
Thales Carvalho, Dennys Victor e Souza Silva, William Matzenauer, Yuri Couceiro, Marccus Alves   +4 more
wiley   +1 more source

Anthropogenic landscape decreases mosquito biodiversity and drives malaria vector proliferation in the Amazon rainforest

PLoS ONE, 2021
Inter-relationships among mosquito vectors, Plasmodium parasites, human ecology, and biotic and abiotic factors, drive malaria risk. Specifically, rural landscapes shaped by human activities have a great potential to increase the abundance of malaria ...
L. Chaves, E. S. Bergo, J. Conn, G. Laporta, Paula R. Prist, M. Sallum   +5 more
semanticscholar   +1 more source

Butterfly and moth habitat specialisation changes along an elevational gradient of tropical forests on Mount Cameroon

Oikos, EarlyView.
Niche breadth, reflecting the range of environmental conditions or resources a species can exploit, influences its distribution, persistence, vulnerability to environmental change, and interspecific interactions. The elevational niche‐breadth hypothesis predicts broader ecological niches at higher elevations due to increased environmental stress and ...
Fernando P. Gaona, Sylvain Delabye, Vincent Maicher, Szabolcs Sáfián, Jan Altman, Jiří Doležal, Štěpán Janeček, Ishmeal N. Kobe, Mercy Murkwe, Robert Tropek   +9 more
wiley   +1 more source

Amazon rainforest, people and biodiversity

RCMOS - Revista Científica Multidisciplinar O Saber
This study aims to verify the reality of the riverside community in the Amazon rainforest, as well as to characterizethe scientifi c production on the populations of the waters in Brazilian territory; Characterize the profi leof families residing in the ...
Elizarégia Reis de Castro
semanticscholar   +1 more source

Do Policy Capacities Matter for Federal Policy Design? Evidence From the Implementation of Three Social Policies in Brazil

Public Administration and Development, EarlyView.
ABSTRACT Bringing together the literature on policy design, policy capacity and policy making in multilevel systems, this paper argues that the effectiveness of policy design in federal countries depends, ceteris paribus, on the adequacy of federal and local policy capacities.
Giliberto Capano, Vanessa Elias de Oliveira   +1 more
wiley   +1 more source

Discrepancies in precipitation trends between observational and reanalysis datasets in the Amazon Basin

Scientific Reports
The Amazon rainforest is a region of global importance as it accounts for 10% of terrestrial biodiversity and stores at least 10 years’ worth of global anthropogenic carbon dioxide ( $$\hbox {CO}_2$$ ) emissions.
Andrew Polasky, Vikrant Sapkota, Chris E. Forest, Jose D. Fuentes   +3 more
doaj   +1 more source

Self-amplified Amazon forest loss due to vegetation-atmosphere feedbacks

Nature Communications, 2017
Relatively little is understood about seasonal effect of climate change on the Amazon rainforest. Here, the authors show that Amazon forest loss in response to dry-season intensification during the last glacial period was likely self-amplified by ...
Delphine Clara Zemp, Carl-Friedrich Schleussner, Henrique M. J. Barbosa, Marina Hirota, Vincent Montade, Gilvan Sampaio, Arie Staal, Lan Wang-Erlandsson, Anja Rammig   +8 more
doaj   +1 more source