Relevant bibliographies by topics / WEST-CENTRAL TROPICAL AFRICA

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'WEST-CENTRAL TROPICAL AFRICA'

Author: Grafiati
Published: 5 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "WEST-CENTRAL TROPICAL AFRICA"

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MASSA, BRUNO. "Orthoptera Tettigoniidae as indicators of biodiversity hotspots in the Guinean Forests of Central and West Tropical Africa." Zootaxa 4974, no. 3 (2021): 401–58. http://dx.doi.org/10.11646/zootaxa.4974.3.1.

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The present paper has two aims: 1) to present the results of the study of selected species of Orthoptera Tettigoniidae collected in the Guinean forests of West Africa and in the important hotspot of Dzanga-Ndoki National Park (Central African Republic); 2) to carry out a check-list of six subfamilies of Tettigoniidae (Pseudophyllinae, Conocephalinae, Hexacentrinae, Phaneropterinae, Mecopodinae and Hetrodinae) living in Central-West tropical Africa, in particular in two main tropical forests, in the subregion of upper Guinea, and in the subregion Nigeria-Cameroon plus the biodiversity hotspots
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Jenkins, G. S., and J. H. Ryu. "Space-borne observations link the tropical Atlantic ozone maximum and paradox to lightning." Atmospheric Chemistry and Physics Discussions 3, no. 6 (2003): 5725–54. http://dx.doi.org/10.5194/acpd-3-5725-2003.

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Abstract. The causes of high tropospheric column ozone values over the Tropical Atlantic Ocean during September, October, and November (SON) are investigated by examining lightning during 1998–2001. The cause for high tropospheric column ozone in the hemisphere opposite of biomass burning (tropical ozone paradox) is also examined. Our results show that lightning is central to high tropospheric column ozone during SON and responsible for the tropical ozone paradox during December, January, and February (DJF) and June, July and August (JJA). During SON large numbers of flashes are observed in So
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Asefi-Najafabady, Salvi, and Sassan Saatchi. "Response of African humid tropical forests to recent rainfall anomalies." Philosophical Transactions of the Royal Society B: Biological Sciences 368, no. 1625 (2013): 20120306. http://dx.doi.org/10.1098/rstb.2012.0306.

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During the last decade, strong negative rainfall anomalies resulting from increased sea surface temperature in the tropical Atlantic have caused extensive droughts in rainforests of western Amazonia, exerting persistent effects on the forest canopy. In contrast, there have been no significant impacts on rainforests of West and Central Africa during the same period, despite large-scale droughts and rainfall anomalies during the same period. Using a combination of rainfall observations from meteorological stations from the Climate Research Unit (CRU; 1950–2009) and satellite observations of the
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Jenkins, G. S., and J. H. Ryu. "Linking horizontal and vertical transports of biomass fire emissions to the Tropical Atlantic Ozone Paradox during the Northern Hemisphere winter season: climatology." Atmospheric Chemistry and Physics Discussions 3, no. 5 (2003): 5061–98. http://dx.doi.org/10.5194/acpd-3-5061-2003.

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Abstract. During the Northern hemisphere winter season, biomass burning is widespread in West Africa, yet the total tropospheric column ozone values (<30 DU) over much of the Tropical Atlantic Ocean (15° N–5° S) are relatively low. At the same time, the tropospheric column ozone values in the Southern Tropical Atlantic are higher than those in the Northern Hemisphere (ozone paradox). We examine the causes for low tropospheric column ozone values by considering the horizontal and vertical transport of biomass fire emissions in West Africa during November through March, using observed data wh
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Jenkins, G. S., and J. H. Ryu. "Linking horizontal and vertical transports of biomass fire emissionsto the tropical Atlantic ozone paradox during the Northern Hemisphere winter season: climatology." Atmospheric Chemistry and Physics 4, no. 2 (2004): 449–69. http://dx.doi.org/10.5194/acp-4-449-2004.

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Abstract. During the Northern hemisphere winter season, biomass burning is widespread in West Africa, yet the total tropospheric column ozone values (<30DU) over much of the Tropical Atlantic Ocean (15°N-5°S) are relatively low. At the same time, the tropospheric column ozone values in the Southern Tropical Atlantic are higher than those in the Northern Hemisphere (ozone paradox). We examine the causes for low tropospheric column ozone values by considering the horizontal and vertical transport of biomass fire emissions in West Africa during November through March, using observed data which
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FULLER, T. L., M. F. DUCATEZ, K. Y. NJABO, et al. "Avian influenza surveillance in Central and West Africa, 2010–2014." Epidemiology and Infection 143, no. 10 (2014): 2205–12. http://dx.doi.org/10.1017/s0950268814003586.

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SUMMARYAvian influenza virus (AIV) is an important zoonotic pathogen, resulting in global human morbidity and mortality and substantial economic losses to the poultry industry. Poultry and wild birds have transmitted AIV to humans, most frequently subtypes H5 and H7, but also different strains and subtypes of H6, H9, and H10. Determining which birds are AIV reservoirs can help identify human populations that have a high risk of infection with these viruses due to occupational or recreational exposure to the reservoir species. To assess the prevalence of AIV in tropical birds, from 2010 to 2014
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Janicot, S. "Impact of warm ENSO events on atmospheric circulation and convection over the tropical Atlantic and West Africa." Annales Geophysicae 15, no. 4 (1997): 471–75. http://dx.doi.org/10.1007/s00585-997-0471-x.

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Abstract. Empirical studies have shown that warm El Nino/Southern Oscillation (ENSO) episodes are associated during northern summer with, first, a southward location of the intertropical convergence zone (ITCZ) over the tropical Atlantic, and, second, a weakened convection over West Africa where the ITCZ is near its mean latitude. A modelling experiment presented here is used to help explain this apparent contradiction. In simulated ENSO conditions, the ITCZ is located southwards over the tropical Atlantic. Over West Africa the intertropical front is also displaced southwards, but more slightl
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Cribb, P. J., and I. la Croix. "New Polystachya Species (Orchidaceae) from Tropical West and South-Central Africa." Kew Bulletin 51, no. 3 (1996): 571. http://dx.doi.org/10.2307/4117036.

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Sukhorukov, Alexander, Maria Kushunina, and Filip Verloove. "Notes on Atriplex, Oxybasis and Dysphania (Chenopodiaceae) in West-Central Tropical Africa." Plant Ecology and Evolution 149, no. (2) (2016): 249–56. https://doi.org/10.5091/plecevo.2016.1181.

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<b>Background and aims</b> – The indigenous representatives of Chenopodiaceae in tropical Africa are still insufficiently studied. Some genera, especially <i>Atriplex</i> L., <i>Oxybasis</i> Kar. &amp; Kir. and <i>Dysphania</i> R.Br. (subfam. Chenopodioideae), are difficult to diagnose and are often confused with other native or alien taxa.<b>Methods</b> – The morphological characters of <i>Atriplex, Oxybasis</i> and <i>Dysphania</i> were reviewed using specimens from the herbaria B, BM, BR, BRLU, E, G, K, LE, MHA, MW, P, and W.<b>Key results</b> – A new species <i>Atriplex congolensis</i> Suk
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Mekonnen, Ademe, Chris D. Thorncroft, and Anantha R. Aiyyer. "Analysis of Convection and Its Association with African Easterly Waves." Journal of Climate 19, no. 20 (2006): 5405–21. http://dx.doi.org/10.1175/jcli3920.1.

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Abstract The association between convection and African easterly wave (AEW) activity over tropical Africa and the tropical Atlantic during the boreal summer is examined using satellite brightness temperature (TB) and ECMWF reanalysis datasets. Spectral analysis using 18 yr of TB data shows significant variance in the 2–6-day range across most of the region. Within the regions of deep convection, this time scale accounts for about 25%–35% of the total variance. The 2–6-day convective variance has similar amplitudes over western and eastern Africa, while dynamic measures of AEW activity show str
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Dissertations / Theses on the topic "WEST-CENTRAL TROPICAL AFRICA"

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Sainge, Nsanyi Moses. "Vegetation patterns in tropical forests of the Rumpi Hills and Kimbi-Fungom National Park, Cameroon, West-Central Africa." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2646.

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Thesis (DTech (Environmental health))--Cape Peninsula University of Technology, 2017.<br>Western Cameroon is thought to hold rich biodiversity and diverse vegetation types, and contains two important forest reserves: Rumpi Hills Forest Reserve (RHFR), which is lowland to montane forest located in southwestern Cameroon and Kimbi Fungom National Park (KFNP), which is a semi-deciduous and savanna forest located in northwestern Cameroon. These forest blocks form part of the continental Cameroon Mountains. Thus far, few or limited studies have been undertaken at these two sites to characterise thei
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Lachenaud, Olivier. "Le genre Psychotria (Rubiaceae) en Afrique occidentale et centrale: taxonomie, phylogénie et biogéographie." Doctoral thesis, Universite Libre de Bruxelles, 2013. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209442.

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Le genre Psychotria est le plus vaste de la famille des Rubiaceae, avec plusieurs centaines d’espèces répandues dans toutes les régions tropicales humides. Les Psychotria sont principalement des arbustes (quelques-uns sont lianescents, herbacés ou arborescents) et entrent souvent pour une part importante dans la composition des sous-bois tropicaux. Certains montrent des adaptations remarquables comme la symbiose bactérienne foliaire ou l’accumulation d’humus. En raison de sa taille et des difficultés d’identifications, ce genre reste mal connu, notamment en Afrique occidentale et centrale où i
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Books on the topic "WEST-CENTRAL TROPICAL AFRICA"

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Jean, Estève, Killmann Wulf, Food and Agriculture Organization of the United Nations., Association pour le développement de l'information environnementale., and Association technique internationale des bois tropicaux. Commission Forêt., eds. Regional code of practice for reduced-impact forest harvesting in tropical moist forests of West and Central Africa. Food and Agriculture Organization of the United Nations, 2005.

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Brown, David. Principles and Practice of Forest Co-management: Evidence from West-Central Africa (European Union Tropical Forestry Paper). Overseas Development Institute, 1995.

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Regional Code of Practice for Reduced-impact Forest Harvesting in Tropical Moist Forests of West And Central Africa. Food & Agriculture Org, 2006.

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Moriuchi, Hiroyuki. Human T-cell Lymphotropic Virus. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190604813.003.0010.

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Human T-cell lymphotropic virus type 1 (HTLV-1), a human retrovirus that infects an estimated 10–20 million people worldwide, has endemic foci in Japan, West and Central Africa, the Caribbean, Central and South America, and Melanesia. Also, it is the etiological agent of a lymphoproliferative malignancy, adult T-cell leukemia/lymphoma (ATLL), as well as chronic inflammatory diseases such as HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). HTLV-1 can be transmitted vertically, sexually, or by blood-borne transmission. ATLL occurs in approximately 5% of carriers who are infec
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Book chapters on the topic "WEST-CENTRAL TROPICAL AFRICA"

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Hokkanen, Markku. "From Heroic Exploration to Careful Control: Mobility, Health, and Medicine in the British African Empire." In Medicine and Mobility in Nineteenth-Century British Literature, History, and Culture. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-17020-1_12.

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AbstractNineteenth-century explorers epitomised, in their public image, heroic, energetic, and enduring Victorian masculinity. The demands of mobility in challenging conditions and facing high risks to health were central to this image. This was particularly the case in tropical Africa. Among many mid- to late Victorians there was a common idea that keeping active and on the move in tropical conditions was healthy and that conversely immobility or slowness could be perilous. However, as the exploration of the African interior gave way to conquest and colonisation, ideas advocated for controlle
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Huntley, Brian John. "The Guineo-Congolian Rain Forest Biome." In Ecology of Angola. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-18923-4_12.

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AbstractTropical rain forests are represented in Angola by the narrow and fragmented southwards extension of the Guineo-Congolian rain forests of the Congo Basin and West Africa. This Chapter defines and characterises tropical rain forests, and compares the diversity of African forests with those of Central and South America and of South East Asia. The evolution and dynamics of African rain forests, and the role of human activity through the Holocene is discussed. Angola’s forest types are defined, their distribution, physical conditions, physiognomy and floristic and faunistic composition, pl
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Takow, Julius A., Mamadou D. Doumbia, and L. R. Hossner. "Acid soil profiles of the semiarid and subhumid tropics in Central and West Africa." In Plant-Soil Interactions at Low pH. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3438-5_35.

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Stich, August. "Human African trypanosomiasis." In Oxford Textbook of Medicine. Oxford University Press, 2010. http://dx.doi.org/10.1093/med/9780199204854.003.070810_update_001.

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Human African trypanosomiasis (HAT, sleeping sickness) is caused by two subspecies of the protozoan parasite Trypanosoma brucei: T. b. rhodesiense is prevalent in East Africa among many wild and domestic mammals; T. b. gambiense causes an anthroponosis in Central and West Africa. The disease is restricted to tropical Africa where it is transmitted by the bite of infected tsetse flies (...
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Juo, Anthony S. R., and Kathrin Franzluebbers. "Properties and Management of Smectitic Soils." In Tropical Soils. Oxford University Press, 2003. http://dx.doi.org/10.1093/oso/9780195115987.003.0016.

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Smectitic soils of the tropics are medium- to fine-textured alluvial soils containing moderate to large amounts (20% or more) of smectite, a shrinking and swelling clay mineral, in the clay fraction. Small to moderate amounts of other layer silicate minerals, such as illite, chlorite, vermiculite, and kaolinite, are also present in the clay fraction. Smectitic soils have moderate to high values of CEC (10-50 cmol/kg of soil), high base saturation, and high water-retention capacity. These soils are usually developed on alluvial materials rich in basic cations, especially Mg. Smectitic soils com
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de Waal, Alex. "Darfur." In Famine that Kills Darfur, Sudan. Oxford University PressNew York, NY, 2005. http://dx.doi.org/10.1093/oso/9780195181630.003.0003.

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Abstract Darfur is huge. It covers an area as large as France, and more than half the size of Kenya. Sudan, the largest country in Africa, is often thought to consist of two parts, ‘north’ and ‘south’. Darfur and its neighbouring region Kordofan deserve a separate classification: the ‘west’. The western border of Darfur is equidistant between Port Sudan on the Red Sea, and the coast of west Africa in Cameroon. Darfur’s position relative to the rest of Sudan can be seen in Fig. 2.1. During its history, Darfur has been part of empires based as far apart as the Nile and the Nigerian savannas. Dar
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G., Benjamin, Marcel Tanner, and Juerg Utzinger. "Effects of Irrigated Rice Fields and Seasonality on Plasmodium Transmission in West Africa, Particularly in Central Côte d'Ivoire." In Current Topics in Tropical Medicine. InTech, 2012. http://dx.doi.org/10.5772/25884.

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Meyers, Wayne M., Bouke de Jong, and Françoise Portaels. "Buruli ulcer: Mycobacterium ulcerans infection." In Oxford Textbook of Medicine. Oxford University Press, 2010. http://dx.doi.org/10.1093/med/9780199204854.003.070628_update_002.

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Buruli ulcer is caused by Mycobacterium ulcerans, which secretes a cytotoxic and immunosuppressive toxin, mycolactone. The disease is characterized by necrosis of skin, subcutaneous tissue, and bone, and is re-emerging as a potentially disabling affliction of inhabitants of tropical wetlands. Major foci are in West and Central Africa, but there are minor endemic foci in Australia, Mexico, South America, and South-East Asia. It is not contagious; environmental sources include water, vegetation, and insects, with humans probably becoming infected by traumatic introduction of the bacillus into th
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Balée, William. "Indigeneity of Past Landscape Transformations of the Tropics." In Humans and the Environment. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199590292.003.0011.

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Indigeneity is the living heritage of traditional peoples. It includes not only their languages and cultures but their transformational etchings on landscapes—not just alterations in the form of inanimate structural changes of the substrate, as in the construction of earthworks and edifices, but sometimes changing the composition of the living flora and fauna. Archaeology is crucial to the identification of indigeneity in the past and in the analysis of landscapes and seascapes associated with it. Landscape transformations, from the perspective of historical ecology, refer to the turnover in s
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Luis Godínez-Ortega, José, Juan V. Cuatlán-Cortés, Juan M. López-Bautista, and Brigitta I. van Tussenbroek. "A Natural History of Floating Sargassum Species (Sargasso) from Mexico." In Natural History and Ecology of Mexico and Central America. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97230.

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For at least several centuries, sargasso has inhabited the Atlantic Ocean, and there are historical records of these algae reaching the Mexican Veracruz State in the Gulf of Mexico. Blooming of sargasso in the southern tropical Atlantic is a current a global problem from Africa to the Greater Caribbean. Since 2015, exceptionally large quantities of sargasso have been arriving intermittently on the Mexican Caribbean coast, affecting coastal ecosystems and tourist beaches. Sargasso includes two holopelagic species, Sargassum natans and S. fluitans, with several varieties. There are no records of
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Conference papers on the topic "WEST-CENTRAL TROPICAL AFRICA"

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Justeau-Allaire, Dimitri. "AI and Decision Support for Sustainable Socio-Ecosystems." In Thirty-Second International Joint Conference on Artificial Intelligence {IJCAI-23}. International Joint Conferences on Artificial Intelligence Organization, 2023. http://dx.doi.org/10.24963/ijcai.2023/707.

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The conservation and the restoration of biodiversity, in accordance with human well-being, is a necessary condition for the realization of several Sustainable Development Goals. However, there is still an important gap between biodiversity research and the management of natural areas. This research project aims to reduce this gap by proposing spatial planning methods that robustly and accurately integrate socio-ecological issues. Artificial intelligence, and notably Constraint Programming, will play a central role and will make it possible to remove the methodological obstacles that prevent us
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