Results 81 to 90 of about 42,668 (210)

Pollen-based biome reconstructions for Latin America at 0, 6000 and 18 000 radiocarbon years ago [PDF]

Climate of the Past, 2009
The biomisation method is used to reconstruct Latin American vegetation at 6000±500 and 18 000±1000 radiocarbon years before present (¹⁴C yr BP) from pollen data.
R. Marchant, A. Cleef, S. P. Harrison, H. Hooghiemstra, V. Markgraf, J. van Boxel, T. Ager, L. Almeida, R. Anderson, C. Baied, H. Behling, J. C. Berrio, R. Burbridge, S. Björck, R. Byrne, M. Bush, J. Duivenvoorden, J. Flenley, P. De Oliveira, B. van Geel, K. Graf, W. D. Gosling, S. Harbele, T. van der Hammen, B. Hansen, S. Horn, P. Kuhry, M.-P. Ledru, F. Mayle, B. Leyden, S. Lozano-García, A. M. Melief, P. Moreno, N. T. Moar, A. Prieto, G. van Reenen, M. Salgado-Labouriau, F. Schäbitz, E. J. Schreve-Brinkman, M. Wille   +39 more
doaj  

Old carbon contributes to aquatic emissions of carbon dioxide in the Amazon [PDF]

, 2014
Knowing the rate at which carbon is cycled is crucial to understanding the dynamics of carbon transfer pathways. Recent technical developments now support measurement of the ¹⁴C age of evaded CO₂ from fluvial
Garnett, M.H., Newton, J., Vihermaa, L.E., Waldron, S.   +3 more
core   +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

The Diversity of South American Equus: Did Size Really Matter?

Frontiers in Ecology and Evolution, 2019
The extant horse genus Equus originated in North America, probably during the late Miocene/early Pliocene, and its entrance into South America was possibly related to one of the last four stages of the Great American Biotic Interchange.
Helena Machado, Helena Machado, Leonardo Avilla   +2 more
doaj   +1 more source

Halting Neotropical Deforestation: Do the Forest Principles Have What It Takes? [PDF]

, 1996
INTRODUCTION I crashed into the thick secondary growth, stopping suddenly to duck a certain branch in my path: a fat black bullet ant crawled along it with indifference, an attitude that would have quickly changed had I brushed up against him.
Royer, Matthew B.
core   +1 more source

The birth of an earth being: ‘Rights of nature’ in Brazilian Amazonia and elsewhere Naissance d'un être de la terre : « droits de la nature » en Amazonie brésilienne et ailleurs

Journal of the Royal Anthropological Institute, EarlyView.
In June 2023, the Laje River, located in the traditional territory of the Wari’ Indigenous people in Rondônia, Brazil, was declared a legal entity, an earth being, with rights, following the co‐ordinated action of an indigenous councillor and non‐indigenous activists.
Aparecida Vilaça
wiley   +1 more source

Mammal Responses to Habitat Degradation Induced by Cashew Expansion in West Africa

Animal Conservation, EarlyView.
Relationships between (a) estimated mammal species richness, (b) overall mammal species photographic rate, (c) carnivore photographic rate, (d) insectivore photographic rate, (e) omnivore photographic rate and (f) herbivore photographic rate and the local habitat characteristics as denoted by the scores of the first component of the Principal Component
Daniel Na Mone, Isnaba Nhassé, João Soares, Raquel de Oliveira, Manuel Lopes‐Lima, Luís Palma, Ana Filipa Palmeirim   +6 more
wiley   +1 more source

Morphology of Guard Hairs in Amazonian Marsupials: Intergeneric Variation, Habitat and Habit Association in a Phylogenetic Framework of the Order Didelphimorphia

Acta Zoologica, EarlyView.
ABSTRACT The cuticle and medulla of guard hairs exhibit distinct morphological patterns among mammalian species. To investigate this variability in marsupials from the Brazilian Amazon, we analysed guard hairs from nine Didelphimorphia species and incorporated data from an additional 25 didelphid species.
Matheus M. Bitencourt, Ana Cristina Mendes‐Oliveira, Gleomar F. Maschio, Maria Clara S. Ribeiro, Alexandra M. R. Bezerra   +4 more
wiley   +1 more source

Fine‐scale patterns of genetic structure in three species of forest birds reveal dynamic Pleistocene history within an Amazonian interfluve

Ibis, EarlyView.
Phylogeographical studies of Amazonian birds have revealed large intraspecific diversity, even within recognized areas of endemism. To understand the origin and organization of Amazonian diversity, including the influence of current and historical landscapes, we need to evaluate fine‐scale patterns of genetic diversity in relation to detailed ...
Affonso Henrique Nascimento de Souza, Camila Duarte Ritter, João Marcos Guimarães Capurucho, Juliana Menger, Camila Cherem Ribas   +4 more
wiley   +1 more source

L’imaginaire littéraire des grands espaces d’Amérique du Sud, un imaginaire traumatique ? À la recherche de lucioles, d’astres et de la liberté dans les ténèbres

Babel: Littératures Plurielles, 2019
In Vol de nuit (1931), the French writer Antoine de Saint-Exupéry tells the story of the accidents that occurred at the beginning of an Argentinian airmail service.
Céline Richard
doaj   +1 more source