Results 51 to 60 of about 1,878 (172)

Accumulation of Nutrients and the Relation between Fruit, Grain, and Husk of Coffee Robusta Cultivated in Brazilian Amazon

Plants, 2023
Coffee genotypes cultivated in the Amazonian region have been gaining increasing prominence in Brazilian plantations. This study aimed to quantify nutrient accumulation in the fruits, grains, and husks of Robusta coffee genotypes cultivated in the ...
Raquel Schmidt, Cleidson Alves da Silva, Larícia Olária Emerick Silva, Marcelo Curitiba Espindula, Weverton Pereira Rodrigues, Henrique Duarte Vieira, Marcelo Antonio Tomaz, Fábio Luiz Partelli   +7 more
doaj   +1 more source

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

Fisheries 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, Nelson de Almeida Gouveia, Marcelo Ândrade, Rafael Paiva de Oliveira Diaz, Claudemir Oliveira da Silva, Victoria J. Isaac   +5 more
wiley   +1 more source

Fire‐driven forest degradation enhances termite activity and accelerates litter decomposition in the Amazonia rainforest

Insect Conservation and Diversity, EarlyView.
Forest degradation increased termite‐mediated litter decomposition, whereas no such effect was detected in undisturbed forests. Reduced ant predation and altered forest conditions were associated with higher termite abundance and faster litter decomposition.
Vanessa S. Ribeiro, José Henrique Schoereder, Tathiana G. Sobrinho, Paulo M. Brando, Filipe Viegas de Arruda, Ludmila Rattis, Og DeSouza, Márcia N. Macedo, Leonardo Maracahipes‐Santos, Lucas Navarro Paolucci   +9 more
wiley   +1 more source

The Kichwa of Sarayaku Case at the Inter‐American Court of Human Rights: Legal Pluralism, Identity and Citizenship in a Context of Extractivism

Journal of Agrarian Change, EarlyView.
ABSTRACT This article examines the tension between a universal approach to law and the recognition of indigenous peoples' rights at the Inter‐American Court of Human Rights. The struggle for citizenship in a situation of extractivism and land dispossession demonstrates how identity is mobilized to obtain and attribute rights. The focus of this study is
Elisabeth Cunin
wiley   +1 more source

Between Autonomy and Dependency: The Territorialisation of Agroecology in the Colombian Peasant Reserve Zones

Journal of Agrarian Change, EarlyView.
ABSTRACT Peasant movements employ a spectrum of politico‐economic strategies for territorialising agroecology, ranging from autonomy to (inter)dependency. To substantiate this argument, I draw on qualitative fieldwork and historical analysis to examine the Colombian Peasant Reserve Zone movement's strategies for territorialising agroecology at both the
Daniel Ortiz Gallego
wiley   +1 more source

Diversification and coexistence amid widespread and persistent gene flow in Andean trees

New Phytologist, EarlyView.
Andean Prunus species diversify into and occupy distinct elevation zones, remaining morphologically distinct. Yet, ancient introgression and recent admixture cross both phylogenetic and ecological distances. This suggests these species function as a long‐lived syngameon rather than fully isolated lineages, which may help explain how tree diversity ...
Ellen J. Quinlan, James B. Pease, Jhonatan Sallo Bravo, Alfredo F. Fuentes, William Farfan‐Rios, Miles R. Silman   +5 more
wiley   +1 more source

A dual pollination strategy combining perfume attraction and food deception in Galeandra blanchetii E.S. Rand (Orchidaceae)

Plant Biology, EarlyView.
Galeandra blanchetii exhibits a dual‐attraction strategy: male euglossine bees are lured by floral scents as a resource, while both sexes are deceived by non‐existent nectar. Pollination only occurs when bees enter the spur to search for nectar, highlighting an evolutionary transition towards the perfume flower syndrome in Catasetinae.
D. M. Camara, A. W. C. Ferreira, A. P. S. Caetano, A. Domingos‐Melo, S. Albuquerque‐Lima, P. Milet‐Pinheiro, I. C. Machado, E. M. Pessoa   +7 more
wiley   +1 more source

Response of frugivorous primates to changes in fruit supply in a northern Amazonian forest [PDF]

Brazilian Journal of Biology, 2014
Few attempts have been made to understand how spatiotemporal changes in fruit supply influence frugivores in tropical forests. The marked spatiotemporal variation in fruit supply can affect frugivore abundance and distribution, but studies addressing the effects of this variation on primates are scarce.
openaire   +5 more sources

Fermented Beverages from Amazonian Fruits: Nutritional Characteristics and Bioactive Compounds

Beverages
Fermented beverages are drinks that undergo a fermentation process involving yeasts, bacteria, or other microbial groups, leading to the conversion of natural sugars into alcohol, acids, and gases.
Bárbara N. Batista, Ana Cristina Correia, António M. Jordão, Patrícia M. Albuquerque   +3 more
doaj   +1 more source

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

R&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, Simone Vasconcelos Ribeiro Galina, Marlon Alves   +2 more
wiley   +1 more source