Results 11 to 20 of about 708 (173)

Establishment and population expansion of the non-native Azores chromis (Chromis limbata) in the subtropical southwestern Atlantic. [PDF]

open access: yesJ Fish Biol
Abstract This study documents new records and the spatial–temporal progression of the non‐native Azores chromis (Chromis limbata) in southeastern Brazil, particularly on the coast of São Paulo state. We report the first confirmed occurrence of C. limbata in the Alcatrazes Archipelago and document that, in recent years, its abundance has exceeded that ...
Munhoz RR   +5 more
europepmc   +2 more sources

Birth of a Language in the Backlands of Brazil. [PDF]

open access: yesCogn Sci
Abstract It is assumed that in order to acquire a language, children must be exposed to a language during the critical period, which generally lasts until puberty. Here, we report on Cena, an emergent sign language that has developed among a small group of deaf people in an isolated town in the state of Piauí, Brazil. Starting three generations ago, it
Almeida-Silva A   +4 more
europepmc   +2 more sources

Past human‐induced ecological legacies as a driver of modern Amazonian resilience

open access: yesPeople and Nature, Volume 5, Issue 5, Page 1415-1429, October 2023., 2023
Abstract People have modified landscapes throughout the Holocene (the last c. 11,700 years) by modifying soils, burning forests, cultivating and domesticating plants, and directly and indirectly enriched and depleted plant abundances. These activities also took place in Amazonia, which is the largest contiguous piece of rainforest in the world, and for
Crystal N. H. McMichael   +3 more
wiley   +1 more source

Fish on Fire: Shifts in Amazonian fish communities after floodplain forest fires

open access: yesJournal of Applied Ecology, Volume 60, Issue 8, Page 1637-1646, August 2023., 2023
Amazonian fish communities change after floodplain forest fires. Unburnt forests have diverse fish communities, with a large proportion of unique and small omnivorous species. In contrast, carnivores and detritivores become more common in fire scars and white‐sand savannas formed after forest fires. Less omnivore fish after forest fires can reduce tree
Arnold Lugo‐Carvajal   +3 more
wiley   +1 more source

Towards a whole‐system framework for wildfire monitoring using Earth observations

open access: yesGlobal Change Biology, Volume 29, Issue 6, Page 1423-1436, March 2023., 2023
Earth observation data are critical for monitoring fires and their impacts as fire seasons become less predictable. In this manuscript, we draw upon multiple disciplines to present a whole‐system framework for identifying and synthesizing fire monitoring objectives and data needs throughout the life cycle of a fire event.
Morgan A. Crowley   +8 more
wiley   +1 more source

Activating dark earths: somatosoils and the carbonic loops of Amazonian ecologies

open access: yesJournal of the Royal Anthropological Institute, Volume 28, Issue 3, Page 854-874, September 2022., 2022
Abstract Inspired by the fertility and climate change‐mitigation properties of the so‐called Amazonian Dark Earths (ADEs), soil science has devised a technoscientific replica, a soil amendment known as biochar, intended to improve agricultural sustainability and carbon storage in the biosphere. Drawing on fieldwork with Afroindigenous horticulturalists,
Aníbal G. Arregui
wiley   +1 more source

Calcification accretion units (CAUs): A standardized approach for quantifying recruitment and calcium carbonate accretion in marine habitats

open access: yesMethods in Ecology and Evolution, Volume 13, Issue 7, Page 1436-1446, July 2022., 2022
Abstract Standardized metrics that quantify a component of ecosystem functioning are essential for evaluating the current status of coastal marine habitats and for monitoring how ecologically important ecosystems are changing in response to global and local environmental change.
Maggie D. Johnson   +2 more
wiley   +1 more source

An alert system for Seasonal Fire probability forecast for South American Protected Areas

open access: yesClimate Resilience and Sustainability, Volume 1, Issue 1, February 2022., 2022
We considered five variables that represent the anthropogenic and climatological conditions that increase the probability of fire occurrence. The anthropogenic components of the forecast are the (i) trend in the number of active fires over the past three years and (ii) accumulated number of active fires over the same period.
Liana O. Anderson   +16 more
wiley   +1 more source

A relação entre o social e o natural nas abordagens de hazards e de desastres The relation between the social and the natural in the approach of hazards and disasters

open access: yesAmbiente & Sociedade, 2001
O artigo aborda as teorias dos Hazards e dos Desastres. Nos últimos anos estas duas tradições teóricas têm recebido novos impulsos pela renovação de seus marcos de referência conceitual.
Marcos Antônio Mattedi   +1 more
doaj   +1 more source

Amazon Hydrology From Space: Scientific Advances and Future Challenges

open access: yesReviews of Geophysics, Volume 59, Issue 4, December 2021., 2021
Abstract As the largest river basin on Earth, the Amazon is of major importance to the world's climate and water resources. Over the past decades, advances in satellite‐based remote sensing (RS) have brought our understanding of its terrestrial water cycle and the associated hydrological processes to a new era.
Alice César Fassoni‐Andrade   +22 more
wiley   +1 more source

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