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| Registros recuperados: 83 | |
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| Costa,Fabiana R.; Kellner,Alexander W.A.. |
| Jurassic African pterosaur remains are exceptionally rare and only known from the Tendaguru deposits, Upper Jurassic, Tanzania. Here we describe two right humeri of Tendaguru pterosaurs from the Humboldt University of Berlin: specimens MB.R. 2828 (cast MN 6661-V) and MB.R. 2833 (cast MN 6666-V). MB.R. 2828 consists of a three-dimensionally preserved proximal portion. The combination of the morphological features of the deltopectoral crest not observed in other pterosaurs suggests that this specimen belongs to a new dsungaripteroid taxon. MB.R. 2833 is nearly complete, and because of a long and round proximally placed deltopectoral crest it could be referred to the Archaeopterodactyloidea. It is the smallest pterosaur from Africa and one of the smallest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tendaguru; Tanzania; Africa; Upper Jurassic; Pterosauria. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000400017 |
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| Kulyakwave,Peter David; Shiwei,Xu; Yu,Wen. |
| ABSTRACT: Rice farming is characterized by various factors including environmental and non-environmental factors. The current paper analyses the influence of households’ characteristics, and perceptions of weather variability on rice yield. Authors used primary data collected from small-scale rice farmers in the Mbeya region of Tanzania. Garret technique and Stata software were used for data analyses. Results confirmed that farmer’s education, marital status, gender, and land ownership have a positive influence on rice yield. Thus, for every 1% increase in each variable increases rice yield by 14%, 98%, 26%, and 21% respectively. Owing to empirical results on farmers’ perceptions, it is confirmed that if the drought period increased by 1%, would on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rice yield; Weather; Perceptions; Empirical analysis; Tanzania. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001100200 |
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| McNally, Catherine G.; Department of Natural Resources Science, University of Rhode Island, Kingston, Rhode Island; Coastal Resources Center, University of Rhode Island, Narragansett, Rhode Island; cmcnally@crc.uri.edu; Gold, Arthur J.; Department of Natural Resources Science, University of Rhode Island, Kingston, Rhode Island; agold@uri.edu; Pollnac, Richard B.; Department of Marine Affairs, University of Rhode Island, Kingston, Rhode Island; pollnac3@gmail.com; Kiwango, Halima R.; Tanzania National Parks.; hrpenga@yahoo.com. |
| Management of riverine and coastal ecosystems warrants enhanced understanding of how different stakeholders perceive and depend upon different kinds of ecosystem services. Employing a mixed methods approach, this study compares and contrasts the use and perceptions of upstream residents, downstream residents, tourism officials, and conservation organizations regarding the value of 30 ecosystem services provided by the Wami River and its estuary in Tanzania, and investigates their perceptions of the main threats to this system. Our findings reveal that all of the stakeholder groups place a high value on the provision of domestic water, habitat for wild plants and animals, tourism, and erosion control, and a relatively low value on the prevention of... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Ecosystem services; Stakeholders; Values; Tanzania. |
| Ano: 2016 |
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| Baird, Timothy D.; Virginia Tech; tbaird@vt.edu. |
| Decades of research on the social dynamics of biodiversity conservation has shown that parks and protected areas have added hardship to rural communities throughout much of the developing world. Nonetheless, some recent studies have found evidence of poverty alleviation near protected areas. To build on these conflicting accounts, I use a comparative, mixed-methods design to examine opportunistic, unplanned, i.e., unscripted, development in indigenous communities near Tarangire National Park (TNP) in northern Tanzania. I ask the questions: (1) How is proximity to TNP related to community-level infrastructural development? (2) How has the process of development changed over time? and (3) How is proximity to TNP related to infrastructure-related social... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Africa; Conservation; Development; Education; Infrastructure; Tanzania. |
| Ano: 2014 |
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| Mustalahti, Irmeli; Development Studies, Department of Political and Economic Studies, University of Helsinki, Finland ; irmeli.mustalahti@helsinki.fi; Bolin, Anna; Independent Research Consultant, UK; bolinanna@gmail.com; Boyd, Emily; Department of Geography and Environmental Science, Whiteknights University of Reading, UK; e.boyd@leeds.ac.uk; Paavola, Jouni ; School of Earth and Environment, University of Leeds, UK; j.paavola@leeds.ac.uk. |
| The scope of the reducing emissions from deforestation and forest degradation (REDD) mechanism has broadened REDD+ to accommodate different country interests such as natural forests, protected areas, as well as forests under community-based management. In Tanzania the REDD+ mechanism is still under development and pilot projects are at an early stage. In this paper, we seek to understand how local priorities and needs could be met in REDD+ implementation and how these expectations match with global mitigation benefits. We examine the local priorities and needs in the use of land and forest resources in the Angai Villages Land Forest Reserve (AVLFR) in the Liwale District of Lindi Region in Tanzania. Primary data was collected in two villages, Mihumo and... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Participatory Forest Management (PFM); Pro-poor REDD+; REDD+; Tanzania. |
| Ano: 2012 |
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| Sengooba,Theresa; Grumet,Rebecca; Hancock,James; Zawedde,Barbara; Kitandu,Lazaro; Weebadde,Cholani; Karembu,Margaret; Kenya,Eucharia; Meredia,Karim; Nampala,Paul; Ochanda,James O; Quemada,Hector; Rubindamayugi,Mugassa. |
| Development and deployment of genetically engineered crops requires effective environmental and food safety assessment capacity. In-country expertise is needed to make locally appropriate decisions. In April 2007, biosafety and biotechnology scientists, regulators, educators, and communicators from Kenya, Tanzania, and Uganda, met to examine the status and needs of biosafety training and educational programs in East Africa. Workshop participants emphasized the importance of developing biosafety capacity within their countries and regionally. Key recommendations included identification of key biosafety curricular components for university students; collaboration among institutions and countries; development of informational materials for non-academic... |
| Tipo: Journal article |
Palavras-chave: Biotechnology; Environmental safety; Kenya; Tanzania; Uganda. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000100001 |
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| Mahongo, Sb. |
| Global mean sea levels show a general rising trend that has been accelerated by the recent changes in world climate. This is ascertained through geological and historical records, measurements from in situ tide gauges around the globe and since 1992, through satellite altimetry. About 60% of the 34 tide gauge stations in the Western Indian Ocean region with at least four years of data portray rising trends of relative sea levels, while the remaining 40% show falling trends. Sea level records in 14 other stations in the region were not considered in this investigation due to short data spans. Relative sea levels in Tanzania show falling trends in Tanga (1962-1966), Dar es Salaam (1986- 1990) and Zanzibar (1984-2004), but portray a rising trend in Mtwara... |
| Tipo: Text |
Palavras-chave: Sea Level Trends; Tide Gauge Stations; Climate Change; Tanzania; Western Indian Ocean.. |
| Ano: 2010 |
URL: https://archimer.ifremer.fr/doc/00489/60034/63302.pdf |
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| Kipanyula,M. J.; Kimaro,W. H.. |
| Background Snakebites cause considerable human and livestock injuries as well as deaths worldwide, and particularly have a high impact in sub-Saharan Africa. Generating a basic platform of information on the characteristics of snakes and snakebites in various countries is relevant for designing and implementing public health interventions.Methods This study was performed to identify types of snakes and some of the characteristics of snakebite cases in two communities, an agricultural and a pastoralist, in Arusha region, northern Tanzania. A total of 30 field visits were carried out in areas considered by local inhabitants to be potential microhabitats for snakes. Direct observation of snake types based on morphological features and a structured... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Venomous snakes; Snakebites; Antivenom; Meserani; Tanzania. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992015000100339 |
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| Ofwegen, L.P. van; Benayahu, Y.. |
| For the first time Alcyonacea from Tanzania are recorded, including two new species: Cladiella daphnae and Sinularia platylobata. Both these species are described and figured, while descriptions are also given of specimens of Lobophytum crassum von Marenzeller, 1886, L. rotundum Tixier-Durivault, 1957, and L. venustum, Tixier-Durivault, 1957. In addition, Sinularia compactum Tixier-Durivault, 1970 and Sinularia "conferta" (Dana, 1846) are discussed. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Alcyonacea; New species; New records; Tanzania; Indian Ocean; 42.72. |
| Ano: 1992 |
URL: http://www.repository.naturalis.nl/record/318737 |
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| Gielis, C.. |
| Ten new Afrotropical species of Pterophoridae are described: Agdistis linnaei spec. nov., Agdistis bouyeri spec. nov., Ochyrotica bjoernstadti spec. nov., Platyptilia aarviki spec. nov., Stenoptilia kiitulo spec. nov., Exelastis caroli spec. nov., Eucapperia continentalis spec. nov., Buckleria vanderwolfi spec. nov., Pselnophorus meruensis spec. nov., and Hellinsia emmelinoida spec. nov. The species are illustrated in colour, and their genitalia in line drawings. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Kenya; Tanzania; Angola; South Africa; 42.75. |
| Ano: 2008 |
URL: http://www.repository.naturalis.nl/record/261763 |
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| Bryceson, I.. |
| Coastal aquaculture of seaweeds and prawns has developed in Tanzania during the past two decades. Farming of Eucheuma seaweeds commenced in 1989 along the east coast of Zanzibar and it has since expanded to other areas. This form of aquaculture does not pollute the environment with feeds, wastes or other chemicals, although there are some negative interactions causing inhibition of surrounding biota, but which appear to be relatively mild. Monoculture may result in some self-inhibition and disease vulnerability over time. The socio-economic impacts of seaweed farming was initially overwhelmingly positive, providing income to women from relatively poor remote villages. Annual production reached 7000 tonnes constituting an important earning of foreign... |
| Tipo: Journal Contribution |
Palavras-chave: Marine aquaculture Development projects Socioeconomic aspects Aquaculture development ISW; Tanzania. |
| Ano: 2002 |
URL: http://hdl.handle.net/1834/21 |
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| Registros recuperados: 83 | |
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