Results 61 to 70 of about 4,105,172 (174)

Key practices for ethical research during scientific expeditions

Conservation Science and Practice, EarlyView.
In many cases, expeditionary practices undermined local knowledge and expertise. This perspective advocates for a shift from parachute science towards a collaborative research approach. We reflect on and suggest best practices during scientific expeditions within research teams and in the team's interactions with different communities.
Nelsy Niño‐Rodríguez, Camila Gómez, Juliana Soto‐Patiño, Andrés M. Cuervo, Andrés Sierra‐Ricaurte, Natalia Pérez‐Amaya, Carlos Del Cairo, Carlos Daniel Cadena, Jessica Díaz‐Cárdenas, David Ocampo, Carolina Soto‐Vargas, Daniel J. Mennill, Natalia Ocampo‐Peñuela   +12 more
wiley   +1 more source

One cell test para el estudio in vitro de citotoxicidad del extracto de una planta de la flora colombiana

Revista Colombiana de Biotecnología, 2004
Este estudio se realizó con el fin de evaluar la toxicidad del extracto de Abuta grandifolia mediante la técnica de One cell test. El extracto etanólico se preparó mediante secado y pulverización del tallo de la A.
Daniel Saúl, Afife Mrad de Osorio, Constanza Martínez, Carmen Alicia Cardozo de Martínez   +3 more
doaj  

Empirical prediction of organic matter digestibility in grasses, legumes and their mixtures from dairy farms in Atlantic Spain

Grassland Science, EarlyView.
Abstract This study characterized the chemical composition and organic matter digestibility (OMD) of herbage from commercial dairy farms in Galicia (NW Spain), a humid‐temperate Atlantic region, and developed empirical prediction equations for OMD based on routine wet‐chemistry traits.
Sonia Pereira Crespo, Pilar Gago, Adrián Botana, Marcos Veiga, Laura González, Juan Valladares, Roberto Lorenzana, César Resch, María del Pilar Martínez‐Diz, Dalia Andrea Plata‐Reyes, Gonzalo Flores‐Calvete   +10 more
wiley   +1 more source

Comparing species accumulation within taxonomically well‐ and poorly resolved insect groups over 37 years

Insect Conservation and Diversity, EarlyView.
Here, we used a unique 37‐year (1969–2006) freshwater macroinvertebrate time‐series, collected over seven sites in central Germany, to study biodiversity patterns and species accumulation over time. Accumulation curves of Diptera diversity have not reached a plateau in 37 years of sampling.
Nathan Jay Baker, Jonas Jourdan, Francesca Pilotto, Rüdiger Wagner, Jessica Awad, Valerio Caruso, Caroline Chimeno, Amelie Höcherl, Marija Ivković, Marina Moser, Viktor Baranov   +10 more
wiley   +1 more source

Líneas de investigación actuales de la antropología biológica argentina

, 2013
Teniendo en cuenta que entre los objetivos de la Asociación de Antropología Biológica Argentina (AABA) figuran la difusión, la promoción y la transferencia de los estudios en Antropología Biológica, la Comisión Directiva 2012-2013 planteó la necesidad de
Avena, Sergio Alejandro, Colantonio, Sonia Edith, Cesani Rossi, María Florencia, Sardi, Marina Laura   +3 more
core  

Cryptic diversity and recent diversification in the Pyrrhulina australis species complex (Characiformes, Lebiasinidae) revealed by mitochondrial DNA

Journal of Fish Biology, EarlyView.
Abstract Pyrrhulina australis Eigenmann & Kennedy, 1903, is widely distributed across the main hydrographic basins of South America. The taxonomic integrity of this species is nevertheless challenged by the lack of clear diagnostic characters, its marked geographic variation and the morphological overlap with its congeners. In this context, the present
Taina Barbosa De Souza, Daniela Cristina Ferreira, Hugmar Pains Da Silva, Carolina B. Machado, Claudio Oliveira, André L. Netto‐Ferreira, Paulo C. Venere   +6 more
wiley   +1 more source

Embryonic and larval development of the endangered Chiapas killifish Tlaloc hildebrandi (Cyprinodontiformes: Profundulidae)

Journal of Fish Biology, EarlyView.
Abstract The early ontogeny of endemic freshwater fishes provides essential baseline biological information for conservation and management, particularly in species with restricted distributions and high vulnerability to habitat degradation, environmental change and population decline. This study presents the first detailed description of embryonic and
Rubén Alonso Contreras‐Tapia, Gabriela Garza‐Mouriño, María Elena Castellanos‐Páez, Marcela Ivonne Benítez‐Díaz Mirón, Jairo Arroyave, Alfonso Ángel González‐Díaz, Wilfredo A. Matamoros   +6 more
wiley   +1 more source

Cryptobenthic reef fishes may not be safe from invasive lionfish (Pterois spp. Oken, 1817)

Journal of Fish Biology, EarlyView.
Abstract Lionfish (Pterois spp.) are hypothesized to negatively influence cryptobenthic reef fish assemblages through predation. We evaluated these potential effects on Caribbean reefs in Costa Rica and tropical reefs in Brazil. Brazil provided a reference condition for cryptobenthic assemblages prior to lionfish invasion, while the Costa Rica sites ...
Liana F. Mendes, Ariston P. Santos, Thaisa A. Souza, Lorena S. Agostinho, Ana B. A. Bennemann, Jorge Cortés, Maria S. Toro, Juliana S. S. Luz, Clara B. P. E. Silva, Carlos. E. R. D. Alencar, Priscila F. M. Lopes   +10 more
wiley   +1 more source

Ética de la investigación biológica: una perspectiva epistemológica

ARS Medica, 2016
Sin resumen ...
Luis Romero Fernández
doaj   +1 more source

Photoprotective potential of gadusol against ultraviolet B radiation in melanocytes

Photochemistry and Photobiology, EarlyView.
Gadusol protects melanocytes from ultraviolet B (UVB)‐induced damage without cytotoxicity. Abstract The increasing incidence of skin cancer, including melanoma, combined with the need for ultraviolet (UV) filters that are safe for human health and marine ecosystems, is driving the search for new photoprotective agents.
Andressa Mai Matsumoto, Rocío Isla Naveira, Andy Joel Taipe Huisa, Marcelo Augusto Germani Marinho, Lais Zortéa, José María Monserrat, Agueda Elena Massa, María Sandra Churio, Ana Paula de Souza Votto   +8 more
wiley   +1 more source