Relevant bibliographies by topics / Ecology – Africa, East

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

Academic literature on the topic 'Ecology – Africa, East'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Ecology – Africa, East"

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WALLER, RICHARD. "ECOLOGY, MIGRATION, AND EXPANSION IN EAST AFRICA." African Affairs 84, no. 336 (1985): 347–70. http://dx.doi.org/10.1093/oxfordjournals.afraf.a097698.

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Almborn, Ove, T. D. V. Swinscow, and Hildur Krog. "Macrolichens of East Africa." Taxon 38, no. 4 (1989): 615. http://dx.doi.org/10.2307/1222645.

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Culberson, William Louis, T. D. V. Swinscow, and H. Krog. "Macrolichens of East Africa." Bryologist 96, no. 3 (1993): 512. http://dx.doi.org/10.2307/3243893.

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Pitman, C. R. S. "Gulls in East Africa." Ibis 76, no. 1 (2008): 209. http://dx.doi.org/10.1111/j.1474-919x.1934.tb01559.x.

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Constance, L., and R. M. Polhill. "Flora of Tropical East Africa." Taxon 39, no. 2 (1990): 258. http://dx.doi.org/10.2307/1223042.

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ROSQVIST, GUNHILD. "East Africa during the Quaternary." Boreas 18, no. 3 (2008): 207–8. http://dx.doi.org/10.1111/j.1502-3885.1989.tb00393.x.

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Tugume, A. K., S. B. Mukasa, and J. P. T. Valkonen. "Natural Wild Hosts of Sweet potato feathery mottle virus Show Spatial Differences in Virus Incidence and Virus-Like Diseases in Uganda." Phytopathology® 98, no. 6 (2008): 640–52. http://dx.doi.org/10.1094/phyto-98-6-0640.

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Sweet potato feathery mottle virus (SPFMV, genus Potyvirus) is globally the most common pathogen of sweetpotato. An East African strain of SPFMV incites the severe ‘sweetpotato virus disease’ in plants co-infected with Sweet potato chlorotic stunt virus and threatens subsistence sweetpotato production in East Africa; however, little is known about its natural hosts and ecology. In all, 2,864 wild plants growing in sweetpotato fields or in their close proximity in Uganda were observed for virus-like symptoms and tested for SPFMV in two surveys (2004 and 2007). SPFMV was detected at different incidence in 22 Ipomoea spp., Hewittia sublobata, and Lepistemon owariensis, of which 19 species are new hosts for SPFMV. Among the SPFMV-positive plants, ≈60% displayed virus-like symptoms. Although SPFMV incidence was similar in annual and perennial species, virus-like diseases were more common in annuals than perennials. Virus-like diseases and SPFMV were more common in the eastern agroecological zone than the western, central, and northern zones, which contrasted with known incidence of SPFMV in sweetpotato crops. The data on a large number of new natural hosts of SPFMV detected in this study provide novel insights into the ecology of SPFMV in East Africa.
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Friis, I., and P. S. Green. "Olea capensis (Oleaceae) in North-East and East Tropical Africa." Kew Bulletin 41, no. 1 (1986): 36. http://dx.doi.org/10.2307/4103022.

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Stedje, Brita, and Mats Thulin. "Synopsis of Hyacinthaceae in tropical East and North-East Africa." Nordic Journal of Botany 15, no. 6 (1995): 591–601. http://dx.doi.org/10.1111/j.1756-1051.1995.tb02127.x.

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Moberg, Roland. "The genus Physcia in East Africa." Nordic Journal of Botany 6, no. 6 (1986): 843–64. http://dx.doi.org/10.1111/j.1756-1051.1986.tb00488.x.

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Dissertations / Theses on the topic "Ecology – Africa, East"

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Phephu, Nonkululo. "A taxonomic revision of Thuidiaceae (Bryophyta) in Africa and the East African islands." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/41007.

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A taxonomic revision of the family Thuidiaceae Schimp. for Africa and the east African Islands is presented. Three genera, namely, Pelekium Mitt., Thuidiopsis (Broth.) M. Fleisch. and Thuidium Bruch & Schimp., and 16 species are accepted and revised for the region. The nomenclature, keys to genera and species, descriptions, illustrations and distribution maps are included. Thuidiaceae is one of over 40 families that belong to the Hypnales which is known to contain the most diversity among pleurocarpous mosses. Members of the Thuidiaceae are characterised by gametophytes with attractive, regularly 2- or 3-pinnate branching, presence of paraphyllia on surfaces of stems and branches, dimorphic stem and branch leaves, longitudinally plicate leaves with a single costa, papillose leaf cells, and a hypnoid peristome. Abietinella Müll. Hal., Haplocladium (Müll. Hal.) Müll. Hal., Hylocomiopsis Cardot and Rauiella Reimers are excluded from African Thuidiaceae. Thuidium involvens var. thomeanum Broth. is raised to species status under Pelekium, as Pelekium thomeanum (Broth.) Phephu. Thuidium pseudoinvolvens (Müll. Hal.) A. Jaeger is also transferred to Pelekium and the new combination Pelekium pseudoinvolvens (Müll. Hal.) Phephu is proposed.<br>Dissertation (MSc)--University of Pretoria, 2013.<br>gm2014<br>Plant Science<br>unrestricted
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Mwachala, Geoffrey. "Systematics and ecology of Dracaena L. (Ruscaceae) in Central, East and Southern Africa." [S.l.] : [s.n.], 2005. http://kola.opus.hbz-nrw.de/volltexte/2005/21.

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Amir, Omar A. "Biology, ecology and anthropogenic threats of Indo-Pacific bottlenose dolphins in east Africa." Doctoral thesis, Stockholm : Department of zoology, Stockholm university, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-34472.

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Diss. (sammanfattning) Stockholm : Stockholms universitet, 2010.<br>At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 2: Submitted. Paper 4: In progress. Paper 5: Submitted.
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Burns, Michael Edmund Reid. "A synecological study of the East London coast dune forests." Thesis, Rhodes University, 1987. http://hdl.handle.net/10962/d1006134.

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Quantitative community descriptions, based on point quarter sample data, are made for a number of dune forest units along the East London coast. These are supported by multivariate classifications and ordinations which illustrate the inter community variation between the sampled seaward, landward and dune valley sites. Climax valley forest is floristically most characteristic and can be clearly distinguished from the seaward and landward thicket communities which tend to show a degree of similarity. Within-forest community differences are shown to be more significant than variation along the coast. This appears to indicate that climoedaphic gradients established laterally to the coast induce a greater floristic response than the rainfall gradient within the study area. The state of developnent within the dune soil profile and the rate and effect of salt spray deposition are considered to be important factors influencing dune forest succession and are discussed in some detail. An overview of certain other climatic variables as well as the geological features within the study area is also given. A phenology study of the dune forest, scrub-thicket and strand plant cornnunities shows some general patterns of flowering and fruiting phenorhythms. Although much variation was observed, there appears to be a bimodal hyperactive phenophase response which is thought to be related to rainfall or periods of favourable soil moisture conditions. A brief discussion of some of the positive and negative human influences on the coastline is given. This includes a description of the management activities carried out in the area as well as the demands placed on ·the coastal resource.
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Van, der Westhuizen Henri. "Valuing preferences for freshwater inflows into the Bira, Bushmans, Kasouga, Keiskamma, Kleinemond East, Nahoon and Tyolomnqa estuaries." Thesis, Nelson Mandela Metropolitan University, 2007. http://hdl.handle.net/10948/628.

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There are about 259 estuaries in South Africa that can be classified as “functioning” and their “health” status is directly related to the quantity and quality of freshwater that flows into them. Many of South Africa’s estuaries have become smaller due to a steady decrease in the amount of freshwater that flows into them. This reduction in freshwater inflows decreases their ecological functioning and undermines the recreational activities and subsistence services available from them. The National Water Act (ACT No. 36 of 1998) recognises the right of the environment to water, but a large amount of data is still needed to make management decisions on the allocation of freshwater. The objective of this research was to contribute to the management of the allocation of freshwater in the catchment areas of the Bira, Bushmans, Kasouga, Keiskamma, Kleinemond East, Nahoon and Tyolomnqa rivers by determining the recreational value of the freshwater flowing into their estuaries. This recreational value was established using the contingent valuation method. The contingent valuation method (CVM) is a technique to establish the value of a good (or service) that is not bought or sold in an actual market. This technique is frequently applied in the valuation of environmental goods, e.g. the freshwater that flows into an estuary. The CVM establishes the economic value by asking the users of an environmental good to state their willingness to pay (WTP) for a hypothetical project to prevent or bring about a change in the current condition of the environmental good. The users’ WTP is then aggregated to establish a total willingness to pay (TWTP) for the population of the users of the environmental good. The hypothetical project presented in this study is that of an increase of freshwater inflows, that would prevent (bring about) predetermined changes in environmental services provided by the selected seven estuaries.
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O'Reilly, Catherine Marie. "The effects of land use change on littoral zone dynamics of Lake Tanganyika, East Africa." Diss., The University of Arizona, 2001. http://hdl.handle.net/10150/289754.

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Lake Tanganyika, East Africa, is one of the world's unique freshwater ecosystems. This lake is approximately 10 million years old and contains an extremely diverse fauna with high levels of endemicity. Most of the biodiversity in the lake is concentrated along the rocky shoreline, and this dissertation focused on the land-water interactions that may affect the littoral ecosystem as human population densities increase. First, the potential of carbon and nitrogen stable isotopes as indicators of human impact was examined. Sedimentary organic matter from four river deltas with contrasting patterns of land use was used to develop a predictive relationship between terrestrial patterns and geochemical signals. Stable isotope analyses of cores taken at two disturbed and two undisturbed watersheds were consistent with patterns seen in surface sediments. These results suggest that nitrogen isotopes are a better indicator of land use while carbon isotopes are useful in determining changes in vegetation patterns. To evaluate the effect of deforestation on ecosystem dynamics, epilithic metabolism was measured at several sites over a period of one year. Epilithic net productivity did not differ significantly between the disturbed and undisturbed watersheds, but epilithic respiration and algal biomass were significantly higher at the disturbed site. Further evidence of disturbance was given by greater amounts of inorganic material on the rocks and lower ambient oxygen concentrations at the impacted site. Finally, in order to identify species more susceptible to changes in benthic productivity, the food web structure of the pelagic and littoral food webs was elucidated using stable isotopic analyses. Diet specificity is not apparent in the littoral food web, suggesting that broad dietary preferences may help stabilize this persistent food web during environmental perturbations. The isotopic structure of the pelagic food web suggests that upwelling of deeper waters is an important nutrient source for the food web, which is consistent with current nutrient and hydrodynamic models.
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Jambo, Collins Mayeso. "Aspects of the ecology and reproductive biology of three cichlid fish species of Southern Lake Malombe (Malawi)." Thesis, Rhodes University, 1998. http://hdl.handle.net/10962/d1005067.

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The three major species Lethrinops ''pinkhead'', Otopharynx argyrosoma "red" and Copadichromis. cf virginalis which used to dominate the catches (by weight) of Lake Malombe in the past decade were investigated. In order to make rational recommendations regarding size and boundary of the existing sanctuary area (lightly fished), distribution and abundance, population structure and reproductive biology of the three species were related to habitat types of the southern part of the lake (south western side and south eastern side). Analysis of catch composition showed that species richness was higher in the south eastern side than in the south western side of the lake. Rare species such as Labeo mesops and Opsaridium microiepis were observed in the south eastern side and there was visual absence of such species in the south western side of the lake. The overall fish abundance was significantly greater in the south eastern side than in the south western side of the lake. In the south eastern side, the catch per unit effort (CPUE) was twice that of the south western side (P< 0.05). Seasonal fluctuations in CPUE were also prominent, with the highest peak occurring during September-October period. However, there was an indication of weak relationship among CPUE, phytoplankton biomass, temperature and water depth. The length-weight relationships revealed that growth of the three species closely followed the cubic law for isometric growth in both sides of the lake. Differences in regression coefficients between sides were not significant (ttest, P>0.05). The length-frequency distribution analysis revealed that the three species had the same growth rate regardless of habitat type. However, females grew faster than males. An investigation of reproductive biology showed that the three species have low fecundity and they are asynchronous spawners, with a breeding peak during August and September period. Furthermore, the length-fecundity relationships for L. ''pinkhead'', and 0. argyrosoma "red" indicated that fecundity was more closely related to length in the south eastern side than in the south western side. Based on the above characteristics of L. ''pinkhead'', 0. argyrosoma "red" and C. cf virginalis, and the substrate types, it was strongly suggested that the existing sanctuary (lightly fished) in the south eastern side of the lake could immediately be enlarged to conserve the fish stocks, favourable substratum and aquatic animals that may be of tourists concern.
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Vromans, Deborah Claire. "Macrophyte phenology in a temporarily open/closed Estuary compared with a permanently open Estuary." Thesis, Nelson Mandela Metropolitan University, 2010. http://hdl.handle.net/10948/1393.

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Temporarily open/closed estuaries (TOCEs) are unpredictable environments that change in response to mouth condition, which is influenced by freshwater flooding or sea storm surges. The aim of the study was to determine whether macrophyte phenology in a TOCE was event driven rather than cyclically predictable and if it differed from permanently open estuaries (POEs). Macrophyte growth and flowering phenology in response to environmental conditions was investigated in the East Kleinemonde Estuary (TOCE) and the Kowie Estuary (POE) along the eastern coastline of South Africa. The lack of freshwater flooding due to low rainfall coupled with several overwash events resulted in a prolonged period of mouth closure from September 2008 to the end of this study period in 2010. This in turn caused the inundation of the supratidal and intertidal habitats, high water level (> 1.57 m amsl) and high salinity (30 - 42 ppt) in the TOCE. Principle Components Analysis showed that high water level and reduced sediments were the most significant environmental factors affecting macrophyte phenology. Macrophyte phenology in the POE was primarily driven by temperature, sediment redox potential and salinity. The saline high water level and reduced sediment significantly reduced macrophyte cover in all habitats in the TOCE. Macrophytes in the POE maintained high cover abundance due to seasonal re-growth compared to the TOCE where cover declined over the sampling period due to the high water level. Subsequent to water level dropping by as little as 11 - 20 cm in the TOCE, the intertidal species Sarcocornia tegetaria and Salicornia meyeriana completed their life-cycles and produced viable seeds within four and three months of germinating respectively. In contrast, the Sarcocornia hybrid and S. meyeriana in the POE took longer to complete their life-cycles, namely seven and nine months respectively, while S. tegataria did not germinate in situ but reproduced vegetatively despite producing seed. In the TOCE, the submerged species Ruppia cirrhosa and Chara vulgaris completed their life-cycles within five and three months and produced a maximum of 26 242 and 196 998 seeds m-2 respectively. Due to high water level and prolonged inundation, the reproductive periods were shorter for the intertidal and reed and sedge species in the TOCE compared to the POE. Seed output during the two reproduction periods varied between the two estuaries. Sarcocornia decumbens and S. tegetaria produced a substantially higher number of seeds in the TOCE compared to the POE, namely 0 - 102 847 versus 20 661 - 48 576 seeds m-²; and 7 001 - 45 542 versus 1 587 – 16 958 seeds m-² respectively. Seed output in the TOCE was significantly higher in S. tegetaria during the second reproduction period despite the significantly lower plant cover, which may be a function of the stressful environment in the TOCE. Seed production of S. meyeriana was significantly higher in the POE compared to the TOCE, with 264 224 - 640 292 compared with 24 050 - 27 643 seeds m-², due to higher plant cover in the POE. The research suggests that macrophyte phenology in the TOCE was significantly influenced by mouth condition. Further, macrophytes were able to demonstrate considerable phenotypic plasticity in response to changing and unfavourable environmental conditions. These data can be used in mouth management plans and freshwater requirement studies in TOCEs to ensure that macrophytes can complete their life-cycles and produce viable seeds for the safeguarding of habitat persistence and ecological processes. In impacted estuaries where artificial mouth opening is practised and the macrophytes have been severely degraded or extirpated, management should ensure that the intertidal and supratidal habitats are not inundated during peak flowering and seed production periods i.e. late spring to early autumn (November to March).
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Allan, Elizabeth Louise. "Ecological role of free-living bacteria in the microbial food web of the temporarily open/closed East Kleinemonde Estuary, South Africa." Thesis, Rhodes University, 2008. http://hdl.handle.net/10962/d1005351.

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The main aim of this study was to assess the “top-down” and “bottom-up” control of bacterial production in the small temporarily open/closed East Kleinemonde Estuary, situated on the south-eastern coastline of southern Africa. Spatial and temporal patterns in bacterial abundance, biomass and production and the importance of abiotic and biotic factors were investigated over the period May 2006 to April 2007. The trophic interactions between bacteria, phytoplankton, nanoflagellates (< 20 μm), microzooplankton (< 200 μm) and mesozooplankton (< 2 000 μm) were investigated during winter and summer. Bacterial abundance, biomass and production ranged between 1.00 × 10⁹ and 4.93 × 10⁹ cells 1⁻¹, 32.4 and 109 μg C 1⁻¹ and 0.01 and 1.99 μg C 1⁻¹ h⁻¹, respectively. With a few exceptions there were no spatial patterns in the values. Bacterial abundance, biomass and production, however, demonstrated a distinct temporal pattern with the lowest values consistently recorded during the winter months. Nanoflagellate and bacterial abundances were significantly correlated to one another (lower reaches: r = 0.818, p < 0.001; middle reaches: r = 0.628, p < 0.001; upper reaches: r = 0.484, p < 0.05) suggesting a strong predator-prey relationship. The frequency of visibly infected bacterial cells and the mean number of virus particles within each bacterial cell during this study demonstrated no temporal or spatial patterns and ranged from 0.5 to 6.1 % and 12.0 to 37.5 virus particles per bacterium, respectively. Viral infection and lysis was thus a constant source of bacterial mortality throughout the year. The estimated percentage of bacterial production removed by viral lysis ranged between 7.8 and 88.9% of the total which suggests that viral lysis represented a very important source of bacterial mortality during this study. The biological interactions between the selected components of the plankton community demonstrated that among the heterotrophic components of the plankton, the nanoflagellates were identified as the most important consumers of bacteria and small phytoplankton cells (< 20 μm). In the presence of microzooplankton the impact of the nanoflagellates on both the bacteria and phytoplankton was reduced, indicating that larger heterotrophs were preying upon the nanoflagellates. Mesozooplankton, however, appeared to exert the greatest impact on nanoflagellates. In the cascading experiments, the data suggest that mesozooplankton consume nanoflagellates, which resulted in a decrease in the predation impact of these organisms on the bacteria. This result is consistent with predator-prey cascades. The presence of the larger heterotrophs therefore, mediates the interactions between the primary bacterivores, the nanoflagellates, and the bacteria within the temporarily open/closed East Kleinemonde Estuary.
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Muli, Benjamin Kimwele. "The biology and ecology of Mussidia spp. (Lepidoptera : Pyralidae) and associated natural enemies in Kenya / Benjamin Kimwele Muli." Thesis, North-West University, 2009. http://hdl.handle.net/10394/4114.

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Mussidia nigrivenella Ragonot (Lepidoptera: Pyralidae), an important pest of maize, cotton and Phaseolus bean in West Africa, has never been described as a crop pest from East and southern Africa (ESA). It was hypothesized that in ESA it was either kept under control by natural enemies or that there exist several populations of M. nigrivenella with different host plant ranges. Another possibility is the mis-identification of the Mussidia species in ESA. Studies were conducted in Kenya between 2005 and 2007 to assess the species diversity and host plant range of Mussidia spp. and spatial distribution studies were done on selected host plants. Later, based on the results of host plant range, surveys were conducted between 2006 and 2007 in mid-altitude coastal Kenya to establish a catalogue of parasitoids associated with Mussidia spp. The suitability of stem borers found in Kenya for development of Trichogrammatoidea sp. nr lutea Girault (Hymenoptera: Trichogrammatoidea) and the factors affecting the bionomics of Mussidia sp. in the laboratory were examined. Eight plant species were found to host two Mussidia spp. and six putative morphospecies, which occur sympatrically in the coastal region. The two Mussidia spp. were Mussidia fiorii Ceconni and de Joannis and M. nr nigrivenella. Only one Mussidia sp., M.Jiorii, was found attacking one host plant species in the mid-altitude regions. In general, the host plant range was much narrower than in West Africa. Mussidia nr nigrivenella and Mussidia "madagascariensis" larval distribution was aggregated on Canavalia cathartica Thouars. (Fabaceae) and Strychnos madagascariensis Poir. (Loganiaceae), respectively, while the distribution of M. fiorii adults on Kigelia africana (Lam.) Benth. (Bignoniaceae) was regular. Eight parasitoid species were recovered from Mussidia spp. eggs and larvae and include the trichogrammatid egg parasitoid Trichogrammatoidea sp. nr lutea Girault, a braconid egg-larval parasitoid, Phanerotoma sp., the bethylid Goniozus sp. and the braconid Apanteles sp. Moreover, the ichneumonid larval parasitoid Syzeuctus sp. was obtained from M. fiorii, while the tachinid Leskia sp. was obtained from M, "madagascariensis". Trichogrammatoidea sp. nr lutea, the only parasitoid species which was successfully reared in the laboratory, successfully attacked and developed on eggs of six lepidopteran hosts indicating its potential to exploit other alternate lepidopteran pests of maize in West Africa. Like the parasitoid species, only one Mussidia sp., M.fiorii, was successfully reared in the laboratory and it developed on maize seed-, Canavalia enseiformes L. DC (Fabaceae) seed- and maize leaf-based diets while it could not develop on Mucuna pruriens L. DC (Fabaceae) seed- and C. cathartica seed-based diets. The lower developmental thresholds for M. fiorii eggs, larvae, pupae and egg to adult were found to be 12.8±0.25°C, 14.4±0.27°C, 11.0±0.03°C and 13.5i0.2rc, respectively, while the thermal constants were 82.0±1.61, 384.6±9.43, 144.9±6.84 and 588.2±10.81 degree days, respectively. Adults started emerging during the last hour of photophase and peak emergence was observed in the 2nd hour of scotophase. Mating activity largely took place between the 4th and 5th hour of scotophase. It can be concluded that there exist several Mussidia spp. in Africa that vary in their host plant range. Overall, mortality caused by parasitoids was negligible hence they were unlikely to explain the population dynamics of the Mussidia spp. in Kenya. The fact that Trichogrammatoidea sp. nr lutea successfully attacks and develops in six lepidopteran hosts, including two Mussidia spp. indicates its potential for use as a biological agent against M. nigrivenella in West Africa. Mussidia fiorii was able to develop on diets based on maize and C. enseiformes. The knowledge on dietary and thermal requirements would optimize mass production of the host and natural enemies. The present study revealed again a serious bottleneck for biocontrol worldwide, namely the proper identification of the pest and natural enemy species as a result of an ever dwindling number of taxonomists. We therefore suggest that molecular (DNA) techniques should be used in addition to detailed morphological examination. In view of the fact that natural control will not be effective in case of accidental introduction of the West African M. nigrivenella into Kenya, we suggest stringent precautions during movement of grains especially maize between the West Africa region and Kenya.<br>Thesis (Ph.D. (Environmental Sciences and Management))--North-West University, Potchefstroom Campus, 2009.
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Books on the topic "Ecology – Africa, East"

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African Centre for Technology Studies and East African Community, eds. Shared terrestrial ecosystems of East Africa: Towards conviviality. ACTS Press, 2003.

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Manoj, Shah, ed. The Great Rift Valley of East Africa. Struik, 2008.

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Environmental imaginaries of the Middle East and North Africa. Ohio University Press, 2011.

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Reid, Robin Spencer. Savannas of our birth: People, wildlife, and change in East Africa. University of California Press, 2012.

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Scholz, Henning. Taxonomy, ecology, ecomorphology, and morphodynamics of the Unionoida (Bivalvia) of Lake Malawi (East-Africa). Freunde der Würzburger Geowissenschaften, 2003.

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Schaab, Gertrud. The BIOTA East Africa atlas: Rainforest change over time. Karlsruhe University of Applied Sciences, Faculty of Geomatics, 2010.

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Savannas of our birth: People, wildlife, and change in East Africa. University of California Press, 2012.

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Snoeks, Jos. The haplochromines (Teleostei, Cichlidae) of Lake Kivu (East Africa): A taxonomic revision with notes on their ecology. Koninklijk Museum voor Midden-Afrika, 1994.

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Water on sand: Environmental histories of the middle east and north africa. Oxford University Press, 2012.

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Russell, Kenneth W. After Eden: The behavioral ecology of early food production in the Near East and North Africa. B.A.R., 1988.

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Book chapters on the topic "Ecology – Africa, East"

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Schagerl, Michael, and Alfred Burian. "The Ecology of African Soda Lakes: Driven by Variable and Extreme Conditions." In Soda Lakes of East Africa. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28622-8_12.

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Ericksen, Polly, Pierre Hiernaux, Augustine Ayantunde, Philip K. Thornton, Jason Sircely, and Lance Robinson. "Rangeland ecology." In The impact of the International Livestock Research Institute. CABI, 2020. http://dx.doi.org/10.1079/9781789241853.0395.

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Abstract Rangelands research in arid and semi-arid sub-Saharan Africa has been reinvigorated by renewed government and donor interest in pastoral livelihoods. The challenges facing productive rangelands remain competition over resources, which has been exacerbated by armed conflict; overuse of some rangelands as fragmentation continues; and the failure of many technical and governance interventions. The unresolved development challenges of pastoralism in East and West Africa make it essential to renew long-term empirical research to understand rangeland dynamics and to develop appropriate public policies. The rangelands research agenda at the International Livestock Research Institue focuses on: (i) governance for better rangeland management; (ii) monitoring rangeland conditions to improve development interventions; (iii) understanding the interactions between climate change and the rangelands; and (iv) improving rangelands productivity for pastoral resilience.
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Mwebaza-Ndawula, Lucas. "Changes in relative abundance of zooplankton in northern Lake Victoria, East Africa." In Studies on the Ecology of Tropical Zooplankton. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0884-3_19.

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Sachedina, Hassan, and Fred Nelson. "The Development of Payments for Ecosystem Services as a Community-Based Conservation Strategy in East Africa." In Integrating Ecology and Poverty Reduction. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0186-5_12.

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Sunseri, Thaddeus. "A “Moral Ecology” of Afrikaner Settlement in German East Africa, 1902–1914." In Moral Ecologies. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-06112-8_11.

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Lehman, John T., Rose Mugidde, and Donna A. Lehman. "Lake Victoria Plankton Ecology: Mixing Depth and Climate-Driven Control of Lake Condition." In Environmental Change and Response in East African Lakes. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1437-2_8.

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Boonman, Joseph G. "Introduction." In East Africa’s grasses and fodders: Their ecology and husbandry. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-015-8224-7_1.

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Boonman, Joseph G. "Legumes in sown and grazed pastures." In East Africa’s grasses and fodders: Their ecology and husbandry. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-015-8224-7_10.

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Boonman, Joseph G. "Elephantgrass as fodder crop." In East Africa’s grasses and fodders: Their ecology and husbandry. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-015-8224-7_11.

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Boonman, Joseph G. "Elephantgrass husbandry." In East Africa’s grasses and fodders: Their ecology and husbandry. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-015-8224-7_12.

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Conference papers on the topic "Ecology – Africa, East"

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Fiaboe, Komi. "Chemical ecology of leaf miners in east Africa." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.94384.

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