Search Results - "Amazons"

Constraints and opportunities for better silvicultural practice in tropical forestry: an interdisciplinary approach by Walter, B.B., Sabogal, C., Snook, Laura K., Almeida, E. de

“…To illustrate this approach, this paper presents three case studies of research on tropical silviculture practice from each of Philippines, Brazilian Amazon and Mexico. Findings from these studies indicate that a variety of factors may influence whether or not silvicultural practices are adopted. …”
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Diversity of the calabash tree (Crescentia cujete L.) in Colombia by Arango Ulloa, A.J., Bohórquez Cháux, Adriana, Duque E., Myriam Cristina, Maass, Brigitte L.

“…Germplasm of the calabash tree (Crescentia cujete L.) was collected in five major regions of Colombia, i.e. the Andes, Caribbean, Amazon, Orinoco, and Pacific regions. Collecting this multipurpose tree was guided by the indigenous knowledge of farmers and artisans in each region. …”
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Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. I. Genetic and pathogenic diversity in Colletotrichum gloeosporioides isolates from Stylosanthes guianen... by Kelemu, Segenet, Badel, JL, Moreno, CX, Miles, John W., Chakraborty, S., Fernandes, C.D., Charchar, Maria José

“…Isolates from Carimagua, Colombia, a savanna ecosystem and a long-time Stylosanthes breeding and selection site, exhibited a relatively wider range of genetic diversity than those from a newly opened trial site in the Amazon basin of Colombia. No strict correlation existed between genetic diversity, as measured by RAPD, and differential virulence, as defined by the pathotype. …”
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Taxonomic identification of Amazonian tree crowns from aerial photography by González Orozco, C.E., Mulligan, M., Trichon, V., Jarvis, Andy

“…Location: The fieldwork was conducted at Tiputini Biodiversity Station located in the Amazon, eastern Ecuador. Methods: High-resolution imagery was taken from an airplane flying at a low altitude (600 m) above the ground. …”
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Early adoption of Arachis pintoi in the humid tropics: the case of dual-purpose livestock systems in Caqueta, Colombia by Rivas Ríos, Libardo, Holmann, Federico J.

“…The early adoption of the legume Arachis pintoi was studied in the State of Caqueta, located in Colombia's Amazon region [date not given]. Data came from 174 farmers randomly surveyed in 1986 and 1997 within the area of influence of Nestle, a multinational milk-processing company. …”
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Is urban bushmeat trade in Colombia really insignificant? by Vliet, N. van, Quiceno Mesa, M.P., Moreno, J., Cruz, D., Fa, J.E., Nasi, Robert

“…The bushmeat trade in ecosystems in South America other than those within the Amazon basin is presumed to be insignificant, as alternative sources of protein (e.g. beef, chicken, fish) are considered to be more readily available in non-moist forests. …”
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The effect of slash and burn agriculture on plant nutrientes in the Tertiary Region of Central Amazonia by Brinkmann, W.L.F, Nascimiento, J.C. do

“…The modifications in the chemical composition of the superficial layer of solo (up to 20 cm deep), in amamelos latosolos (85 percent of the total bed of the Central Amazon) and in biomorphic solos (approximately 1 percent of the same area) were studied, before and after the burning of the felled forest It was observed that fertility, under natural conditions, is low in the two types studied alone. …”
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Investment in project preventing deforestation of the Brazilian Amazonas by Hansson, Pär

“…Brazil has the largest area of rainforest in the world, and also the biggest problem with deforestation. The Amazon region of Brazil comprises rainforest which is largely intact and unexploited. …”

Dataset: Census of individual trees of Tucunare Vichada (2020) by Ruiz-Hurtado, Andres Felipe, Pérez Bolaños, Juliana, Arrechea-Castillo, Darwin Alexis, Matiz Rubio, Natalia, Costa Junior, Ciniro, Arango Mejia, Jacobo, Cardoso Arango, Juan Andres

“…The map tiles were downloaded from Amazon Web Services (AWS) S3 Bucket and processed using additional steps: merging and clipping tiles to cover the region of interest of Tucunare, vectorizing, filtering, and georeferencing individual trees to derive attributes like area, perimeter, equivalent diameter, and circularity representing the visual crown of each tree, and finally applying zonal statistics to assign tree height values. …”
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Witsaja iki, or the good life in Ecuadorian Amazonia: Knowledge co-production for climate resilience by Samuel, Seble

“…Through the stories and perspectives of the Sapara Nation, located in the Ecuadorian Amazon, this research illustrates local insights and perceptions of environmental change, as well as the onset of the external drivers – natural resources extraction and ecological conservation programmes – influencing the livelihoods and territories of this region. …”
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The economics of teff: Exploring Ethiopia’s biggest cash crop by Minten, Bart, Taffesse, Alemayehu Seyoum, Brown, Petra

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Patience in foraging-horticultural society: a test of competing hypotheses by Godoy, Ricardo, Byron, Elizabeth, Reyes-Garcia, Victoria, Leonard, William. R., Patel, K., Apaza, Lilian, Perez, Eddy, Vadez, Vincent, Wilkie, David

“…Drawing on five-quarter panel data from 154 Amerindians (10-80 years of age) from the Tsimane’ foraging horticultural society in the Bolivian Amazon, we use hyperbolic and exponential discounting to estimate patience and the correlation between patience and (a) modern human capital, (b) personal affluence, and (c) age. …”
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Criterios e indicadores para avaliacao da sustentabilidade de empresa florestal em Tailandia, Para, na Amazonia Brasileira by Pokorny, B., Bauch, R.

“…The initial aim of this study was to contribute to the development of monitoring and auditing instruments for forest enterprises in the Brazilian Amazon, based on criteria and indicators (C&I) to assess sustainability, practicability and viability of C&I depending on the consideration of interest, visions and values of forest stakeholders. …”
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Compatibilidade de conjuntos de criterios e indicadores para avaliar a sustentabilidade do manejo florestal na Amazonia Brasileira by Pokorny, B., Adams, M.

“…With the initial aim to better understand this diversity, this study compared the content and the quality of five C&I sets relevant for the Brazilian Amazon (CIFOR, MCA, FSC, ITTO e Tarapoto). In addtion some principle actors of forest management in the region were interviewed. …”
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Multiple use forestry planning: Timber and Brazil nut management in the community forests of Northern Bolivia by Cronkleton, P., Guariguata, Manuel R., Albornoz, M.A.

“…In Bolivia’s Northern Amazon, forests long used for the extraction of non-timber forest products (NTFPs) are now experiencing increased logging. …”
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Interventions to curb deforestation and stability in access to land: A comparative study between two land regulation modalities in the Transamazon region, Brazil by Santos, I.V., Porro, N.M., Porro R.

“…The study compares two modalities of land regulation in the Amazon Settlement Projects (PA) and Sustain-able Development Projects (PDS). …”
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Arbuscular mycorrhizal fungal and soil microbial communities in African Dark Earths by Camenzind, Tessa, Hammer, Edith C, Lehmann, Johannes, Solomon, Dawit, Horn, Sebastian, Rillig, Matthias C, Hempel, Stefan

“…The socio-economic values of fertile and carbon-rich Dark Earth soils are well described from the Amazon region. Very recently, Dark Earth soils were also identified in tropical West Africa, with comparable beneficial soil properties and plant growth-promoting effects. …”
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Livelihood and transition to certified cacao production in the Peruvian Amazonas : gendered responsibilities in Irazola by Emenius, Carin

“…By the use of semi-structured interviews and participating practical methods, ten families in the district of Irazola in the Peruvian Amazon were selected. The study proved customary roles of women in charge of domestic work, children and small animals while men were more often working in the fields and going to meetings. …”

Manejo forestal diversificado en una comunidad ribereña de la Amazonía brasileña: consideraciones sociales y silviculturales by André, da Silva Dias, Campos, José Joaquín, Villalobos Soto, Róger, Louman, Bastiaan, Gonçalvez, Luiza

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Composición y estructura de un bosque tropical post aprovechamiento forestal, en la zona de Awas Tigni, Puerto Cabezas by Canales Colindres, Jorge

“…En los dos casos se repiten las especies encontradas como las más principales, éstas son: Guacimo Colorado Luehea seemannii, Terciopelo, Comenegro Diallum guineensi, Guayabo negro Terminal/a amazon/a. Las especies que se encontraron con los mayores valores del indica de valor de importancia son: Terciopelo, Guacimo colorado Luehea seemannii, Nanciton Hyetonima alchomeoldes y Guayabo negro Terminal/a amazon/a. …”
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