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Socio-Economic Factors Affecting Conservation and Sustainable Utilization of the Vegetation Resources on the Islands of Lake Ziway, South-Central Ethiopia  [PDF]
Haileab Zegeye, Demel Teketay, Ensermu Kelbessa
Natural Resources (NR) , 2014, DOI: 10.4236/nr.2014.514074
Abstract: The study was conducted on the islands of Lake Ziway, south-central Ethiopia. The aim of the study was to investigate the socio-economic factors affecting the vegetation resources and the indigenous resource management systems and practices on the islands. Data were collected by field observations, interviews and group discussion. The island communities were engaged in diverse economic activities. The fishing industry was the main pillar of the economy as most of the income (75.7%) was derived from this sector. The existence of diverse economic activities had relieved the pressure on the vegetation resources. The natural vegetation was the major source of fuelwood, construction material, farm implements, edible fruits, medicines, fodder and bee forage. The islanders have maintained the soil and vegetation resources for centuries through their environmental friendly resource management systems and practices. At present, however, the vegetation resources are dwindling due to free livestock grazing, farmland expansion, soil erosion and tree cutting for various purposes, all of which are driven by human population growth. Since the islanders have high respect and trust for the church, integrating environment and development issues with this institution would be more effective. The prevailing natural and anthropogenic factors affecting the vegetation resources on the islands necessitate effective conservation and management interventions.
Teshome Soromessa,Ensermu Kelbessa
Bioscience Discovery , 2013,
Abstract: Studies on the regeneration, structural and uses of some woody species in Chilimo Forest, one of the dry Afromontane Forests of Ethiopia were conducted. To gather vegetation and environmental data from the study forest, a 900 m2 (30 m x 30 m) quadrat was laid following the homogeneity of vegetation. All together the plant species recorded from Chilimo Forest are 213 which can be categorised into 83 families. Of these, the highest proportion is the angiosperm (represented by 193 species) followed by pteridophyta (16 species); the least represented being the gymnosperms (represented by 2 exotic and 2 indigenous species). To provide a better management and monitoring as well as to maintain the biodiversity, cultural and economic values of the forest unsustainable utility of the forest would be controlled with the various conservation activities in place.
Impact of Parthenium hysterophorus L. (Asteraceae) on Herbaceous Plant Biodiversity of Awash National Park (ANP), Ethiopia
Management of Biological Invasions , 2011,
Abstract: This study was conducted in Awash National Park (ANP), East Shewa Zone of Oromia National Regional Sate, Ethiopia, aimed at determining the impact of parthenium weed (Parthenium hysterophorus L.) on herbaceous diversity. A transect belt of 13.5 km * 0.10 km of parthenium weed infested land was identified for the determination of the impact. Four quadrats were purposively laid every 250 m interval two for infested and two for non-infested each from both sides of the road and a total of 216 quadrats of 2 m x 2 m (4 m2) were considered. A total of 91 species were identified from which five of them were out of the quadrats. All species were categorized into 21 families, from which Poaceae and Fabaceae shared about 40%. The species in the non-infested quadrats were found to be more diverse and even when compared to those of the infested quadrats. Infested quadrats were found to be more abundant and dominant. Tetrapogon tenellus was found the dominant specie in the non-infested quadrats while Parthenium hysterophorus was found dominant in the infested followed by T. tenellus. There was no statistically significant difference between the total stand crop biomass of the infested and non-infested. Parthenium weed have been found creating great challenge on herbaceous plant diversity of ANP.
An ethnobotanical study of medicinal plants in Mana Angetu District, southeastern Ethiopia
Ermias Lulekal, Ensermu Kelbessa, Tamrat Bekele, Haile Yineger
Journal of Ethnobiology and Ethnomedicine , 2008, DOI: 10.1186/1746-4269-4-10
Abstract: Since ancient times plants have been indispensable sources of both preventive and curative traditional medicine preparations for human beings and livestock. Historical accounts of traditionally used medicinal plants depict that different medicinal plants were in use as early as 5000 to 4000 BC in China, and 1600 BC by Syrians, Babylonians, Hebrews and Egyptians [1]. Much of an indigenous knowledge system, from the earliest times, is also found linked with the use of traditional medicine in different countries [2]. Traditional medicine refers to any ancient, culturally based healthcare practice different from scientific medicine and it is commonly regarded as indigenous, unorthodox, alternative or folk and largely orally transmitted practice used by communities with different cultures [3]. WHO also defined traditional medicine as health practices, approaches, knowledge and beliefs incorporating plant, animal and mineral based medicines, spiritual therapies, manual techniques and exercises applied to treat, diagnose and prevent illnesses or maintain well being [4].Beside their use in fighting various ailments at local level different medicinal plants are used as export commodities, which generate considerable income [5]. These plants are normally traded in dried or freshly preserved form as whole or comminuted [6]; and their global markets are found in China, India, Germany, France, Italy, Japan, England and USA [7]. Currently, large number of medicinal plants has found their way as raw materials of modern bio-pharmaceutical industry.In Ethiopia the long history of using traditional medicinal plants for combating various ailments can be confirmed by referring to the medico-religious manuscripts in the country [8]. Plant remedies are still the most important and sometimes the only source of therapeutics for nearly 80% of the population in Ethiopia [9]. The current loss of medicinal plants in the country due to natural and anthropogenic factors links with the missing of
Wild edible plants in Ethiopia: a review on their potential to combat food insecurity
Lulekal, Ermias,Asfaw, Zemede,Kelbessa, Ensermu,Van Damme, Patrick
Afrika Focus , 2011,
Abstract: This work reviews literature on ethnobotanical knowledge of wild edible plants and their potential role in combating food insecurity in Ethiopia. Information on a total of 413 wild edible plants belonging to 224 genera and 77 families was compiled in this review. Shrubs represented 31% of species followed by trees (30%), herbs (29%) and climbers (9%). Families Fabaceae (35 species), Tiliaceae (20) and Capparidaceae (19) were found to be represented by the highest number of edible species. About 56% (233) of species have edibility reports from more than one community in Ethiopia. Fruits were reported as the commonly utilized edible part in 51% of species. It was found that studies on wild edible plants of Ethiopia cover only about 5% of the country’s districts which indicates the need for more ethnobotanical research addressing all districts. Although there have been some attempts to conduct nutritional analyses of wild edible plants, available results were found to be insignificant when compared to the wild edible plant wealth of the country. Results also show that wild edible plants of Ethiopia are used as supplementary, seasonal or survival food sources in many cultural groups, and hence play a role in combating food insecurity. The presence of anthropogenic and environmental factors affecting the wild plant wealth of the country calls for immediate action so as to effectively document, produce a development plan and utilize the plants.
Assessing the levels of food shortage using the traffic light metaphor by analyzing the gathering and consumption of wild food plants, crop parts and crop residues in Konso, Ethiopia
Ocho Dechassa,Struik Paul C,Price Lisa L,Kelbessa Ensermu
Journal of Ethnobiology and Ethnomedicine , 2012, DOI: 10.1186/1746-4269-8-30
Abstract: Background Humanitarian relief agencies use scales to assess levels of critical food shortage to efficiently target and allocate food to the neediest. These scales are often labor-intensive. A lesser used approach is assessing gathering and consumption of wild food plants. This gathering per se is not a reliable signal of emerging food stress. However, the gathering and consumption of some specific plant species could be considered markers of food shortage, as it indicates that people are compelled to eat very poor or even health-threatening food. Methods We used the traffic light metaphor to indicate normal (green), alarmingly low (amber) and fully depleted (red) food supplies and identified these conditions for Konso (Ethiopia) on the basis of wild food plants (WFPs), crop parts (crop parts not used for human consumption under normal conditions; CPs) and crop residues (CRs) being gathered and consumed. Plant specimens were collected for expert identification and deposition in the National Herbarium. Two hundred twenty individual households free-listed WFPs, CPs, and CRs gathered and consumed during times of food stress. Through focus group discussions, the species list from the free-listing that was further enriched through key informants interviews and own field observations was categorized into species used for green, amber and red conditions. Results The study identified 113 WFPs (120 products/food items) whose gathering and consumption reflect the three traffic light metaphors: red, amber and green. We identified 25 food items for the red, 30 food items for the amber and 65 food items for the green metaphor. We also obtained reliable information on 21 different products/food items (from 17 crops) normally not consumed as food, reflecting the red or amber metaphor and 10 crop residues (from various crops), plus one recycled stuff which are used as emergency foods in the study area clearly indicating the severity of food stress (red metaphor) households are dealing with. Our traffic light metaphor proved useful to identify and closely monitor the types of WFPs, CPs, and CRs collected and consumed and their time of collection by subsistence households in rural settings. Examples of plant material only consumed under severe food stress included WFPs with health-threatening features like Dobera glabra (Forssk.) Juss. ex Poir. and inkutayata, parts of 17 crops with 21 food items conventionally not used as food (for example, maize tassels, husks, empty pods), ten crop residues (for example bran from various crops) and one recycled food item (tat
Bioavailability of iron from cereal-based weaning foods
Kelbessa Urga,H.V. Narasimha
Bulletin of the Chemical Society of Ethiopia , 1999,
Phytate: zinc and phytate x calcium: zinc molar ratios in selected diets of Ethiopians
Kelbessa Urga,H.V. Narasimha
Bulletin of the Chemical Society of Ethiopia , 1998,
Nutritional and antinutritional factors of grass pea (Lathyrus sativus) Germplasms
Kelbessa Urga,Alemu Fite,Binyam Kebede
Bulletin of the Chemical Society of Ethiopia , 1995,
Abstract: Bull. Chem. Soc. Ethiop. 1995, 9(1), 9-16.
Effect of natural fermentation on the HC1-extractability of minerals from tef (eragrostis tef)
Kelbessa Urga,H.V. Narasimha
Bulletin of the Chemical Society of Ethiopia , 1997,
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