Results 51 to 60 of about 44,951 (195)

Ecotoxicological Assessment of Mercury in Fish From a Gold‐Mining‐Impacted Amazonian River: Biomonitoring and Human Health Risk

Environmental Toxicology, EarlyView.
ABSTRACT The Peixoto de Azevedo River, located in northern Mato Grosso, southern Brazilian Amazon, has a long history of artisanal and small‐scale gold mining (ASGM). This study evaluated total mercury (THg) concentrations in fish tissues to assess biomagnification and potential risks.
Augusto Cesar da Costa Castilho, Kleber Solera, Vinícius José Santos Lopes, Gleyce Alves Machado, Ricardo Lopes Tortorela de Andrade, Leandro Dênis Battirola   +5 more
wiley   +1 more source

Análisis epistemológico de los modelos de gestión e innovación en pymes del sector comercio en América Latina: revisión bibliográfica

Revista Escuela de Administracion de Negocios
Los modelos de gestión e innovación se constituyen bajo el concepto de la competencia; actualmente se configuran desde la competitividad mediante la implementación de diversas prácticas, enfoques y conceptos, principalmente relacionados con el comercio ...
Luz Marelby Díaz-López, Víctor Julio Balanta Martínez, Lucelly Correa Cruz   +2 more
doaj   +1 more source

Relaciones filogenéticas del género Plukenetia Linnaeus, 1753 (Euphorbiaceae) en la Amazonía peruana; [PDF]

, 2009
Realiza una delimitación taxonómica de las diferentes especies del género a través del establecimiento de las relaciones filogenéticas del género Plukenetia en la amazonía peruana mediante identificación con claves taxonómicas y el empleo de la técnica ...
Rodríguez Del Castillo, Angel Martín
core  

First insights into the movement patterns of maned wolf with sarcoptic mange

Wildlife Biology, EarlyView.
Understanding how infectious diseases influence wildlife behavior, particularly in habitats undergoing modification, is crucial for predicting disease outbreaks, assessing impacts on population fitness, and mitigating human health risks. Sarcoptic mange can alter wildlife movement and space use, yet its effects on threatened carnivores remain unclear ...
Ana Yoko Ykeuti Meiga, Paula R. Prist, Beatriz Amaro, Ricardo Corassa Arrais, Marcos Roberto Monteiro de Brito, Rodrigo Campanha, Danilo Costa, Ingrid Galiano, Paulo Rogerio Mangini, Luana Mamede, Louise Maranhão, Cesar Medolago, Tatiane Moreira, Raphael de Oliveira, Camylla Silva Pereira, Andrea Pires, Herbert Sousa Soares, João Valsecchi, Fernanda Abra   +18 more
wiley   +1 more source

VALOR AGREGADO DE LAS ESPECIES Brycon erythropterum (SÁBALO), Colossoma macropomum (GAMITANA), Arapaima gigas (PAICHE) y Agouti paca (MAJAS)

Ciencia Amazónica (Iquitos), 2012
El presente trabajo tiene como objetivo  la obtención de  productos mínimamente procesados (PMP) de Brycon erythropterum (SÁBALO), Colossoma macropomum (GAMITANA), Arapaima gigas (PAICHE), y Agouti paca (MAJAS) congelado y empacado al vacio.
Doylith Vásquez Jurafo, Cinthya Córdova Ríos, Wendy Olórtegui Morey, Nirsa Cachique Oliveira, Luis Silva Ramos, Ricardo García Pinchi   +5 more
doaj  

Plan de inversión para la prevención y vigilancia del cólera en la región de la Amazonía.

, 2001
Biblioteca tiene 1 ...
Amazonía, Corpes Amazonía
core  

Good days, bad days: Weather patterns driving bryophyte carbon‐exchange dynamics in tropical rainforest canopies

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The physiology of tropical mosses, liverworts and lichens may be challenged by the daily weather patterns in lowland rainforests. Since these poikilohydric organisms can only photosynthesize and respire when hydrated, unfavourable timing of light and water availability (
Monica B. Berdugo, Nada Nikolić, Louise Guérot, Sarah Brach, Jörg Bendix, Gerhard Zotz, Philipp Porada, Maaike Y. Bader   +7 more
wiley   +1 more source

Bat community assembly in the ecotone of two neotropical biodiversity hotspots is determined by environmental filtering rather than historical factors

Journal of Animal Ecology, EarlyView.
We demonstrate that environmental filtering is the primary mechanism shaping bat communities across the Cerrado–Atlantic Forest ecotone. By integrating phylogenetic diversity, environmental gradients, and coevolutionary assembly models, our study provides new insights into the processes maintaining biodiversity in a globally important transition zone ...
Daiana Cardoso Silva, Hernani F. M. Oliveira, Fabricius M. C. B. Domingos   +2 more
wiley   +1 more source

Time of Stablishment of Pastures and Their Relationship with Arbuscular Mycorrhiza in Hilly Terrain and Fertile Valley

Acta Biológica Colombiana, 2006
The subject of this research was to evaluate the effect of the time of establishment (0-5 years, 5-10 years, and more than 10 years.) of pastures of Brachiaria sp.
Raúl Hernando Posada Almanza, Luis Antonio Franco Castro, Edith Medina Girón   +2 more
doaj  

Índices parasitarios en larvas, post larvas y alevinos de Piaractus brachypomus “paco” en relación a los factores ambientales

Ciencia Amazónica (Iquitos), 2014
La presente investigación tuvo como finalidad determinar la relación que existe entre los índices parasitarios en larvas, post larvas y alevinos de Piaractus brachypomus "paco" y las variaciones de los factores ambientales en el Centro de Investigaciones
Narda Dinis Vásquez, Manuel Soplín Bosmediano, Emer Pizango Paima, Fred Chu Koo, Lorgio Verdi Olivares   +4 more
doaj   +1 more source