Results 51 to 60 of about 232,101 (213)

Trophic opportunism of central Amazon floodplain fish [PDF]

open access: yesFreshwater Biology, 2015
SummaryThe food web of the central Amazon basin displays one of the largest discrepancies in food source utilisation versus availability for consumers. While C4macrophytes dominate the primary producing biomass in floodplains, the food web is dominated by the use of C3carbon sources.
Mortillaro, J. M.   +5 more
openaire   +4 more sources

Conservation Priority Areas for Endemic and Threatened Bird Species in the Brazilian Amazon Under Climate Change: A Multifaceted Approach

open access: yesAnimal Conservation, EarlyView.
Climate change is projected to substantially erode taxonomic, phylogenetic, and functional diversity of endemic and threatened birds in the Brazilian Amazon by 2100. Integrating these dimensions with climate refugia revealed priority conservation areas, particularly in the eastern Amazon, highlighting where conservation efforts can best safeguard ...
Kauê Felippe de Moraes   +5 more
wiley   +1 more source

Annual net primary production of macrophytes in the eastern Amazon floodplain

open access: yes, 2009
Aquatic herbaceous macrophytes contribute significantly to the input carbon for the Amazon floodplain. These plants have large seasonal variations in areal coverage and high productivity. The present study estimates annual net primary production (NPP) of
Melack, John M   +5 more
core   +1 more source

Hydropower Regulation of Xingu River Discharge Structures Heterogeneous, Sector‐Specific Responses in Pacu Fisheries Along the River Continuum

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Hydroelectric dams are common in Amazonian tributaries under federal environmental licensing that requires long‐term fisheries monitoring. This study evaluated three fishing systems targeting “pacu” species (Serrasalmidae) in the Xingu River before, during, and after construction of the Belo Monte dam (2012–2023) across four river sectors ...
João Paulo Moura de Queiroz   +5 more
wiley   +1 more source

Identification key to the Gerridae (Insecta: Heteroptera: Gerromorpha) from the Amazon River floodplain, Brazil, with new records for the Brazilian Amazon

open access: yesZoologia (Curitiba), 2011
Eighteen species from seven genera are recorded from the Amazon River floodplain, Brazil. An identification key, diagnoses, drawings, and taxonomic and biological notes are given for these species.
Felipe F. F. Moreira   +3 more
doaj   +1 more source

Shape of Water: Power Dynamics for Supply Chain Resilience

open access: yesJournal of Supply Chain Management, EarlyView.
ABSTRACT The world is facing climate change‐driven disruptions such as extreme weather events, which affect nature as well as firms and their supply chains. Nonetheless, little is known about how supply chain players shape their socioecological resilience, including from a power perspective.
Aristides R. Oliveira Junior   +3 more
wiley   +1 more source

How Alliances Build Innovation Capabilities but Narrow Their Redeployment in Amazonian Community‐Based Enterprises

open access: yesR&D Management, EarlyView.
ABSTRACT Research on strategic alliances often treats supplier capability development as an outcome, but rarely asks which capabilities are built or what they can be used for. We address this through an embedded single‐case study of a lead‐firm‐orchestrated network in the Brazilian Amazon, comprising six community‐based enterprises (CBEs) supplying ...
Renata Elaje Azevedo da Mota Carmona Chaves   +2 more
wiley   +1 more source

Evolution of ecological indicators in the assessment of restoration of mining‐degraded riparian forests: a global bibliometric analysis (1990–2024)

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction The restoration of mining‐degraded riparian forests faces challenges due to structural, compositional, and functional impacts on these ecosystems. The demand for effective monitoring requires an understanding of how ecological indicators have been applied to assess post‐mining restoration success.
Marcele F. Pereira   +6 more
wiley   +1 more source

Assessment of two biomass estimation methods for aquatic vegetation growing on the Amazon Floodplain

open access: yes, 2010
Studies of macrophyte productivity in the Amazon region are limited by accessibility and costs; hence, they may suffer from reduced sample size and representation.
Melack, John M   +5 more
core   +1 more source

Chemical features of floodplain soils under different land-uses in the Solimões/Amazon River basin

open access: yes, 2022
Most studies regarding the impacts of agricultural systems on soils of the Amazon region of Brazil have been carried out on upland soil, locally known as terra firme.
César Augusto Ticona-Benavente (4826700)   +7 more
core   +2 more sources

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