Results 21 to 30 of about 60,499 (200)

High Temperature, pH, and Hypoxia Cause Oxidative Stress and Impair the Spermatic Performance of the Amazon Fish Colossoma macropomum

Frontiers in Physiology, 2020
The control of abiotic parameters is fundamental for fish survival, growth and reproduction. These factors have a direct effect on sperm quality. Thus, this study evaluated the effect of different temperatures (29, 31, 33, and 35°C), pHs (4 and 8), and ...
Jonatas S. Castro, Jonatas S. Castro, Susana Braz-Mota, Derek F. Campos, Samara S. Souza, Adalberto L. Val, Adalberto L. Val   +6 more
doaj   +1 more source

Optimization of the recovery yield of the enzymatic aqueous extraction of oil from wet açaí decocts using Design of Experiment

Grasas y Aceites, 2023
These last decades, açaí oil has been extensively studied for its biological properties and has gained interest from the health industry. It has thus become necessary to develop eco-friendly extraction techniques.
B. Rodrigues, C. Herman
doaj   +1 more source

Publisher Correction: Amazonian understory forests change phosphorus acquisition strategies under elevated CO2 [PDF]

Nature Communications
Nathielly P. Martins, Lucia Fuchslueger, Laynara F. Lugli, Oscar J. Valverde-Barrantes, Richard J. Norby, Iain P. Hartley, Izabela Aleixo, Fabricio B. Baccaro, Barbara N. S. Brum, Crisvaldo Cássio Silva de Souza, Carine M. Cola, Raffaello Di Ponzio, Amanda Damasceno, Tomas F. Domingues, Vanessa R. Ferrer, Katrin Fleischer, Sabrina Garcia, Alacimar Guedes, Florian Hofhansl, David M. Lapola, Juliane G. Menezes, Anna C. M. Moraes, Ana Caroline Miron, Leonardo Ramos de Oliveira, Cilene Palheta, Iokanam S. Pereira, Maria Pires Martins, Gyovanni Ribeiro, Jéssica Schmeisk-Rosa, Anja Rammig, Flavia D. Santana, Yago R. Santos, Lara Siebert Silva, Bruno Takeshi T. Portela, Gabriela Ushida, Carlos A. Quesada   +35 more
doaj   +2 more sources

Data on the effects of fertilization on growth rates, biomass allocation, carbohydrates and nutrients of nitrogen-fixing and non-nitrogen-fixing tree legumes during tropical forest restoration

BMC Research Notes, 2021
Objectives Tree legume species play an important role in forest restoration in the tropics. Understanding how different species adjust carbohydrate allocation and growth under distinct nutrient availability will enhance the success of restoring degraded ...
Roberto K. Jaquetti, José Francisco C. Gonçalves   +1 more
doaj   +1 more source

Genetic Architecture and Signatures of Selection in the Caqueteño Creole (Colombian Native Cattle)

Diversity, 2022
Evolutionary mechanisms have shaped the genomic architecture of Colombian Creole cattle breeds. The mating and selection processes have impacted several traits, promoting differences within and between populations.
Alejandra M. Toro-Ospina, Ana C. Herrera Rios, Wellington Bizarria Santos, Gustavo Pimenta Schettini, Viviana H. Vallejo Aristizabal, Gilberto Tovar Claros, Edna Gicela Ortiz Morea   +6 more
doaj   +1 more source

Hyperdominance in the Amazonian Tree Flora [PDF]

Science, 2013
IntroductionRecent decades have seen a major international effort to inventory tree communities in the Amazon Basin and Guiana Shield (Amazonia), but the vast extent and record diversity of these forests have hampered an understanding of basinwide patterns.
Ter Steege, Hans, Pitman, Nigel C.A., Sabatier, Daniel, Baraloto, Christopher, Salomão, Rafael P., Guevara, Juan Ernesto, Phillips, Oliver L., Castilho, Carolina V., Magnusson, William E., Molino, Jean-François, Monteagudo, Abel, Núñez Vargas, Percy, Montero, Juan Carlos, Feldpausch, Ted R., Coronado, Eurídice N. Honorio, Killeen, Tim J., Mostacedo, Bonifacio, Vasquez, Rodolfo, Assis, Rafael L., Terborgh, John, Wittmann, Florian, Andrade, Ana, Laurance, William F., Laurance, Susan G.W., Marimon, Beatriz S., Marimon, Ben-Hur Jr., Guimarães Vieira, Ima Célia, Amaral, Iêda Leão, Brienen, Roel, Castellanos, Hernán, Cárdenas López, Dairon, Duivenvoorden, Joost F., Mogollón, Hugo F., de Almeida Matos, Francisca Dionízia, Dávila, Nállarett, García-Villacorta, Roosevelt, Stevenson Diaz, Pablo Roberto, Costa, Flávia, Emilio, Thaise, Levis, Carolina, Schietti, Juliana, Souza, Priscila, Alonso, Alfonso, Dallmeier, Francisco, Duque Montoya, Alvaro Javier, Fernandez Piedade, Maria Teresa, Araujo-Murakami, Alejandro, Arroyo, Luzmila, Gribel, Rogerio, Fine, Paul V.A., Peres, Carlos A., Toledo, Marisol, Aymard C., Gerardo A., Baker, Tim R., Cerón, Carlos, Engel, Julien, Henkel, Terry W., Maas, Paul, Petronelli, Pascal, Stropp, Juliana, Zartman, Charles Eugene, Daly, Doug, Neill, David, Silveira, Marcos, Ríos Paredes, Marcos, Chave, Jerome, de Andrade Lima Filho, Diógenes, Jørgensen, Peter Moller, Fuentes, Alfredo, Schöngart, Jochen, Valverde, Fernando Cornejo, Di Fiore, Anthony, Jimenez, Eliana M., Mora, Maria Cristina Peñuela, Phillips, Juan Fernando, Rivas, Gonzalo, van Andel, Tinde R., von Hildebrand, Patricio, Hoffman, Bruce, Zent, Eglée L., Malhi, Yadvinder, Prieto, Adriana, Rudas, Agustín, Ruschell, Ademir R., Silva, Natalino, Vos, Vincent, Zent, Stanford, Oliveira, Alexandre A., Cano Schutz, Angela, Gonzales, Therany, Nascimento, Marcelo Trindade, Ramirez-Angulo, Hirma, Sierra, Rodrigo, Tirado, Milton, Medina, María Natalia Umaña, van Der Heijden, Geertje, Vela, César I.A., Torre, Emilio Vilanova, Vriesendorp, Corine, Wang, Ophelia, Young, Kenneth R., Baider, Claudia, Balslev, Henrik, Ferreira, Cid, Mesones, Italo, Torres-lezama, Armando, Giraldo, Ligia Estela Urrego, Zagt, Roderick, Alexiades, Miguel N., Hernandez, Lionel, Huamantupa-Chuquimaco, Isau, Milliken, William, Cuenca, Walter Palacios, Pauletto, Daniela, Sandoval, Elvis Valderrama, Gamarra, Luis Valenzuala, Dexter, Kyle G., Feeley, Ken, Lopez-Gonzalez, Gabriela, Silman, Miles R.   +119 more
openaire   +6 more sources

Influence of drainage status on soil and water chemistry, litter decomposition and soil respiration in central Amazonian forests on sandy soils [PDF]

, 2011
Central Amazonian rainforest landscape supports a mosaic of tall terra firme rainforest and ecotone campinarana, riparian and campina forests, reflecting topography-induced variations in soil, nutrient and drainage conditions.
Berton Zanchi, F., Dolman, A.J., Groenendijk, M., Kruijt, B., Waterloo, M.J.   +4 more
core   +1 more source

Optional or Syntactic Ergativity in Shawi: Distribution and Possible Origins

Linguistic Discovery, 2017
In this article we provide a preliminary description and analysis of the most common ergative constructions in Shawi, a Kawapanan language spoken in Northwestern Amazonia.
Luis Miguel Rojas-Berscia, Corentin Bourdeau   +1 more
doaj   +1 more source

Optimizing sampling design to deal with mist-net avoidance in Amazonian birds and bats [PDF]

, 2013
Mist netting is a widely used technique to sample bird and bat assemblages. However, captures often decline with time because animals learn and avoid the locations of nets. This avoidance or net shyness can substantially decrease sampling efficiency.
Marques, Joao Tiago, Beja, Pedro, Jorge M Palmeirim, Palmeirim, Jorge M., Marques, T., Ramos Pereira, Maria J., Joana Santana, Tiago A Marques, Marques, Tiago A., Santos, Carlos David, Santos, C., Pedro Beja, Carlos David Santos, João Tiago Marques, Beja, P., Palmeirim, J., Santana, Joana, Ramos Pereira, M., Santana, J., Maria J Ramos Pereira, Marques, J.   +20 more
core   +2 more sources

Amazonian struggles for recognition [PDF]

Transactions of the Institute of British Geographers, 2018
Since the 1988 Constitution, forest peoples of Brazilian Amazonia have been struggling for territorial recognition. Yet studies of recognition in post colonial contexts, based on cases with clear settler/indigenous distinctions, are highly critical of recognition, seeing it as a form of “neoliberal multiculturalism,” a co‐option of subaltern identities
openaire   +1 more source