Resultados de búsqueda - "Gabon"

Craterispermum capitatum and C. gabonicum (Rubiaceae): two new species from the Lower Guinean and Congolian domains por Taedoumg, H.E., Sonke, B., Hamon, P., Block, P. de

“…The distribution of C. capitatum shows a wide disjunction: the species is present in the Lower Guinean and Congolian Domains but absent from Gabon and South Cameroon. An identification key for the Craterispermum species present in the Lower Guinean and Congolian Domains is given.…”
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Atelier sur la gestion de la faune sur les concessions de l'exploitation forestiere d' Afrique centrale por Tutin, C., Nasi, Robert

“…This article is a summary of a Workshop on Wildlife Management in Logging Concessions in Central Africa, La Lupe, Gabon, November 2000. The workshop was unique in that it brought together field-based representatives of logging companies, conservation NGOs and government ministries to discuss practical options for reducing the impact of timber exploitation on wildlife within the forests of Central Africa. …”
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Capacity for forestry research in selected countries of West and Central Africa por Spilsbury, M.J., Kowero, G.S., Tchala-Abina, F

“…In 1997/98 a survey of nine forestry institutions in the West and Central Africa countries of Nigeria, Ghana, Cote d'Ivoire, Cameroon, Gabon and Benin was conducted. The survey methodology utilises ten indicators of research capacity that facilitate comparisons across the survey sample. …”
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People managing forests: the links between human well-being and sustainability por Colfer, C.J.P., Byron, Y.

“…The 26 authors reports results of research conducted in six countries (Indonesia, Brazil, Cameroon, Gabon, Trinidad, and the United States), in conjunction with a series of social science methods tests designed to assess human well being in areas where logging was taking place. …”
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Macroeconomic change, competitiveness and timber production: a five-country comparison por Wunder, Sven

“…This study analyzes how long-run macroeconomic fluctuations have affected timber production levels in five tropical oil-producing countries: Gabon, Cameroon, Papua New Guinea (PNG), Venezuela, and Ecuador. …”
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SSR markers reveal diversity in Guinea yam (Dioscorea cayenensis/D. rotundata) core set por Obidiegwu, J.E., Kolesnikova-Allen, M., Ene-Obong, E.E., Muoneke, C.O., Asiedu, Robert

“…The genetic diversity of 219 accessions of Guinea yam germplasm from Benin, Congo, Côte d’ Ivoire,Equatorial Guinea, Gabon, Ghana, Nigeria, Sierra Leone and Togo was accessed using 15 microsatelliteloci. …”
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Bio-ecology and systematics of the scale insect Stictococcus vayssierei Richard, 1971 (Hemiptera: Stictococcidae), a major pest of root and tuber crops in the Nigero-Congolian fore... por Doumtsop, F.A.R.

“…High densities (> 1000 scales/plant) were recorded along the Cameroon-Gabon border. Scale cohorts reared on cassava cuttings and cocoyam corms (females) and in plastic tubes (males) in environment chambers at six constant temperatures showed a significant decrease of development time with an increase in temperature in both sexes, with recorded times for females shorter on cassava than on cocoyam. …”
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Insights into the illegal ivory trade and status of elephants in Togo, West Africa por Segniagbeto, G.H., Agbodji, K.T., Leuteritz, T.E.J., Dendi, D., Fa, J.E., Luiselli, L.

“…Despite the fact that presently illegal elephant hunting is unlikely in Togo, we show that this country is the entry point for ivory from Central Africa (Cameroon and Gabon). We maintain that Togo's position as an intermediary country in the illegal ivory trade is a tangible threat to elephants throughout their range countries and is also likely to affect the dwindling population of these animals in the country if adequate enforcement is not implemented.…”
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Influence of FSC certification on the governance of the logging sector in the Congo basin por Lescuyer, G., Tsanga, R., Nziengui, S., Forni, E., Romero, C.

“…With this purpose, this article analyses the influences of the implementation of FSC standards on changes in forest governance in Cameroon, Congo and Gabon based on perceptions of 43 “knowledgeable” actors of FSC natural forest management. …”
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The 2008–2009 timber sector crisis in Africa and some lessons for the forest taxation regime por Karsenty, A., Bayol, N., Cerutti, P.O., Ezzine-de-Blas, D., Forni, E.

“…Large FSC-certified companies announced their intention to sell out their concessions in Congo and Gabon. This could prefigure a new picture with various types of small logging enterprises filling the vacuum left by formal industry and some FSC-certified concessionaires replaced by large but less environmentally responsible companies…”
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Genetic characterization of some water yam (Dioscorea alata L.) in West Africa with simple sequence repeats por Obidiegwu, J.E., Asiedu, Robert, Ene-Obong, E.E., Muoneke, C.O., Kolesnikova-Allen, M.

“…A collection of 89 water yam (Dioscorea alata L.) accessions from Benin, Congo, Côte d’Ivoire, Equatorial Guinea, Gabon, Ghana, Nigeria, Sierra Leone and Togo was assessed for genetic diversity using thirteen microsatellite loci. …”
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Mapping Bushmeat Hunting Pressure in Central Africa por Ziegler, S., Fa, J.E., Wohlfart, C., Streit, B., Jacob, S., Wegmann, M.

“…In this paper, we compiled published data on hunting offtake of mammals, from a number of studies conducted between 1990 and 2007 in Cameroon, Central African Republic, Democratic Republic of Congo, Equatorial Guinea, Gabon, and Republic of Congo. From these data sources, we estimated annual extraction rates of all hunted species and analyzed the relationship between environmental and anthropogenic variables surrounding each hunting rate and levels of bushmeat extraction. …”
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Workshop report: strategic planning workshop on recovering Banana production in BBTD affected areas: community and farm household approaches por Lepoint, P.C.E., Staver, Charles, Ajambo, S., Rietveld, Anne M., Kumar, P. Lava, Hanna, R., Caruana, Marie-Line

“…In Africa, occurrence has been confirmed in 14 countries, namely Angola, Benin, Burundi, Cameroon, Central African Republic, Congo Republic, DRC, Egypt, Equatorial Guinea, Gabon, Malawi, Nigeria, Rwanda and Zambia.…”
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Horizon scanning to assess the bioclimatic potential for the alien species Spodoptera eridania and its parasitoids after pest detection in west and central Africa por Tepa-Yotto, Ghislain T., Gouwakinnou, G.N., Fagbohoun, J.R., Tamo, Manuele, Saethre, M.

“…The analysis of its potential distribution anticipates that the pest might easily migrate east and south from Cameroon and Gabon. CONCLUSION The models used generally demonstrate that all the parasitoids considered are good candidates for the biological control of SAW globally, except they will not be able to establish in specific climates. …”
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Promoting stewardship of forests in the humid forest zone of Anglophone West and Central Africa: Final Report of a collaborative research project undertaken by the UNEP and CIFOR por Dykstra, D.P., Kowero, G.S., Ofosu-Asiedu, A., Kio, P.

“…The project contributes to a larger joint project currently being undertaken by CIFOR and the Government of France for the Francophone countries of Côte d'Ivoire, Cameroon, Central African Republic, Congo and Gabon.…”
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Non-timber forest products markets and potential degradation of the forest resource in Central Africa: the role of research in providing a balance between welfare improvement and f... por Ndoye, O., Ruíz Pérez, M., Eyebe, A.

“…This paper investigates the importance of income generated from marketing selected NWFP in Central Africa., focuses on local markets in Cameroon and at the borders with the Central African Republic (CAR), equatorial Guinea and Gabon. The species considered are Irvingia spp. (bush mango nut), Cola acuminata (cola nut), Garcinia lucida (essock) and Garcinia kola (onie). …”
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The dynamics of trypanosome infections in natural populations of tsetse (Diptera: Glossinidae) studied using wing-fray and ovarian ageing techniques por Leak, S.G.A., Rowlands, G.J.

“…Infection rates ranged from 0.2 percent in Glossina fuscipes quanzensis Pires at a site in Zaire, to 18 percent in Glossina tabaniformis Westwood at a site in Gabon. Statistical models were fitted to data for nine species or sub-species of tsetse (G. pallidipes Austen, G. morsitans morsitans Westwood, G. morsitans submorsitans Newstead, G. fuscipes fuscipes Newstead, G. fuscipes quanzensis Pires, G. palpalis palpalis Robineau-Desvoidv, G. palpalis gambiensis Vanderplank, G. tanchinoides Westwood and G. tabaniformis Westwood), recorded across eight sites. …”
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Farmer participation in Research-for-Development to enhance cassava production in Cameroon por Njukwe, E.

“…Cassava chips from retailers were sorted, graded and milled in a warehouse for export to Libreville and Port Gentile in Gabon and Congo Brazzaville with a small portion for domestic markets. …”
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Toward gender equality: A critical assessment of evidence on social safety nets in Africa por Peterman, Amber, Kumar, Neha, Pereira, Audrey, Gilligan, Daniel O.

“…By 2017, every country on the continent had at least 1 SSN, with the number ranging from 2 (Republic of the Congo and Gabon) to 56 (Burkina Faso), and the average country having 15 (Beegle, Coudouel, and Monsalve 2018).…”
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Mise en evidence des facteurs du paysage agissant sur la repartition de la faune dans une concession forestiere por Vliet, N. van, Nasi, Robert

“…The study highlights the landscape factors that influence the pattern of fauna distribution in a sustainably managed logging concession in Gabon. The data show that the availability of food resources is not a determining factor in the distribution of fauna scale of the landscape concerned. …”
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