Results 71 to 80 of about 700,041 (234)

Piranhas (Serrasalmus spp.) as markers of mercury bioaccumulation in Amazonian ecosystems

Ecotoxicology and Environmental Safety, 2004
Mercury (Hg) concentration in fish depends on feeding strategies and age/size within the species as well as on water parameters related to acidity and Hg speciation. We chose two species of piranhas (Serrasalmus aff. eigenmanni and Serrasalmus rhombeus) to test their suitability as markers of Hg bioaccumulation.
José G, Dórea, Antonio C, Barbosa, Jurandir, Souzade, Pedro, Fadini, Wilson F, Jardim   +4 more
openaire   +2 more sources

Illegal Gold Mining in the Brazilian Amazon: Environmental Degradation in Yanomami Indigenous Lands, and Regulatory Failures

Sustainable Development, EarlyView.
ABSTRACT Illegal gold mining has emerged as a major sustainability threat in the Amazon, eroding Indigenous rights, forest integrity, and climate mitigation efforts. This study examines how international market incentives relate to the expansion of illegal mining and associated deforestation within the Yanomami Indigenous Territory (YIT) from 2008 to ...
Shirléia Lago Santos, Ana Claudia de Araujo Moxotó, Jurandir Moura Dutra   +2 more
wiley   +1 more source

Determinants of anuran assemblages in Amazonian White-sand Ecosystems

Anais da Academia Brasileira de Ciências
Amazonian white-sand ecosystems have predominantly sandy soils and a high amount of endemism, and several species found within them are adapted to long periods of drought. However, little is known about the variation in the structure of anuran assemblages in these ecosystems.
RAFAELA CAROLINE S. PEREIRA, JUSSARA S. DAYRELL, RAMIRO DÁRIO MELINSKI, ALBERTINA P. LIMA   +3 more
openaire   +4 more sources

Response of testate amoebae to a late Holocene ecosystem shift in an Amazonian peatland [PDF]

European Journal of Protistology, 2018
To date there have only been two studies using testate amoebae as palaeoecological indicators in tropical peatlands. Here we present a new ∼500-year testate amoeba record from San Jorge, a domed peatland in Peruvian Amazonia, which has a well-constrained vegetation history based on pollen analysis. We observe a major shift from Hyalosphenia subflava to
Graeme T. Swindles, Thomas J. Kelly, Katherine H. Roucoux, Ian T. Lawson   +3 more
openaire   +6 more sources

National Policy Coherence Counts for Reducing Inequality in Global Climate and Development Agendas

Sustainable Development, EarlyView.
ABSTRACT International institutions promote policy coherence as crucial to the effective and fair implementation of global sustainability agendas, though the evidence for its benefits is slim. We present here the first systematic cross‐country dataset on the consequences of national government efforts to promote policy coherence for vulnerable groups ...
Katherine Browne, Adis Dzebo, Zoha Shawoo, Mario Cardenas, Pierrick Chalaye, Alexia Faus Onbargi, Cassilde Muhoza, Patricia Nicdao, Nokwethaba Makhanya, Navam Niles, Priyatma Singh   +10 more
wiley   +1 more source

Influence of air pollutants on pneumonia hospitalizations among children in a town in the Brazilian Legal Amazon region: a time series study

São Paulo Medical Journal
BACKGROUND: Exposure to particulate material produced as a result of increased agricultural activity may increase the number of pneumonia hospitalizations among children. We hope to contribute to the knowledge base through highlighting the environmental
Danila Pequeno Santana, Viviane Martins Santos, Ageo Mário Cândido da Silva, Walkiria Shimoya-Bittencourt   +3 more
doaj   +1 more source

The strengthening of Amazonian precipitation during the wet season driven by tropical sea surface temperature forcing

Environmental Research Letters, 2018
Amazonian rainfall plays a critical role in the global climate system and the hydrological cycle. It is thus important to quantify changes in the Amazonian rainfall and clarify its mechanism.
Xin-Yue Wang, Xichen Li, Jiang Zhu, Clemente A S Tanajura   +3 more
doaj   +1 more source

Revisiting the Load Capacity Curve for Sustainable Development: The Roles of Plastic Waste Trade, Digital Trade, and BioTrade in OECD Countries

Sustainable Development, EarlyView.
ABSTRACT This study examines the validity of the Load Capacity Curve (LCC) hypothesis and assesses the environmental implications of emerging trade structures, focusing on BioTrade, digital trade, and plastic waste trade. Using a balanced panel of 36 OECD countries from 2011 to 2023, the analysis investigates how income dynamics and trade composition ...
Ugur Korkut Pata, Mustafa Naimoglu, Selin Karlilar Pata   +2 more
wiley   +1 more source

Effects of climate variability and disturbances on the Amazonian terrestrial ecosystems dynamics [PDF]

Global Biogeochemical Cycles, 2002
This article examines how climate variability and ecological disturbances affect ecosystem composition and functioning in the Amazon region. We use a terrestrial ecosystem model, IBIS, and vary the treatment of climate (using either long‐term average climate, or actual historical variations in climate) and disturbances (with uniform disturbance rates ...
Aurélie Botta, Jonathan A. Foley
openaire   +1 more source

A Generic Approach to Creating a National Soil Security Strategy

Sustainable Development, EarlyView.
ABSTRACT Soil is a living and non‐renewable resource that underpins our very existence. It produces our food, filters our water, stores vast amounts of carbon, cycles essential nutrients, and sustains the rich tapestry of biodiversity on which our planet depends.
Alex McBratney, Pasquale Borrelli, Sandra J. Evangelista, Julia Feeth, Damien Field, Nicolas Francos, Irene Heuser, Anilkumar Hunakunti, Daniel Irving, Thilini Jayasekara, Bruce Lascelles, Fatima Maria de Souza Moreira, Budiman Minasny, Cristine L. S. Morgan, Wartini Ng, Julio C. Pachón Maldonado, Mercedes Román Dobarco, Amin Sharififar, Quentin Styc, Mara Thiene, David Watt, Jae E. Yang   +21 more
wiley   +1 more source