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Search Results: 1 - 10 of 236830 matches for " B.W. Martin "
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A revised list of alien plants for the Kruger National Park
L.C. Foxcroft,L. Henderson,G.R. Nichols,B.W. Martin
Koedoe : African Protected Area Conservation and Science , 2003, DOI: 10.4102/koedoe.v46i2.54
Abstract: Alien plants recorded in the Kruger National Park are listed, providing an update of species that have been recorded since the last published list in 1988. The serious consequences that invasive alien plants pose are widely recognised internationally and are regarded as the greatest threat to the Kruger National Park. It is extremely important to maintain an updated list of species to use as a reference and from which to monitor changes in the influx of invasive species. The list contains the invasive status of the plants, current impact, habitat types, biological control status and status according to the Conservation of Agricultural Resources Act (CARA), Act 43 of 1983, as amended in March 2001. The list comprises 370 species, of which 121 are invaders and two are transformer weeds, which may cause considerable damage and alterations to the indigenous biodiversity. A total of 91 species listed herein are also listed in the CARA regulations or are proposed additions to the CARA regulations.
Data mining and search techniques in the biotechnology and Web environment: a comparison
B.W. Koester
South African Journal of Information Management , 2009, DOI: 10.4102/sajim.v3i2.137
Cookbooks and Caribbean cultural identity : an English-language hors d'oeuvre
B.W. Higman
New West Indian Guide , 1998,
Abstract: Analysis of 119 English-language cookbooks (1890-1997) published in or having to do with the Caribbean. This study of the history of cookbooks indicates what it means to be Caribbean or to identify with some smaller territory or grouping and how this meaning has changed in response to social and political developments. Concludes that cookbook-writers have not been successful in creating a single account of the Caribbean past or a single, unitary definition of Caribbean cuisine or culture.
Floristic List for Oklahoma County
Hoagland, B.W.
Oklahoma Native Plant Record , 2001,
Abstract: This list, generated on 19 February 2001, is an ongoing project. The most complete records at this time are from the Robert Bebb Herbarium at the University of Oklahoma. Others [indicated with *] are from Oklahoma State University, University of Science and Arts of Oklahoma, Southeastern Oklahoma State University and Northwestern Oklahoma State University.
B.W. Smuts
Scientia Militaria : South African Journal of Military Studies , 2012, DOI: 10.5787/20-1-371
Abstract: Selection and training are integral functions of modern military activity. Although a typical air force officer personality does not appear to exist, these tests do serve as a pointer towards the question of career satisfaction.
B.W. Smuts
Scientia Militaria : South African Journal of Military Studies , 2012, DOI: 10.5787/19-4-372
Abstract: Navorsing is 'n term wat dikwels verkeerdelik gebruik word. Die sogenaamde navorsing wat deur populêre tydskrifte uitgevoer of aangehaal word, is dikwels slegs 'n aanduiding van die behoeftes of opinies van die skrywer. Die foutiewe of ontoepaslike interpretasie van navorsingsresultate is 'n ander bekende probleem wat tot wangebruik van die term navorsing lei. Hierdie verskynsel ontstaan omdat die totale proses van navorsing nie deur die skrywers self deurloop is nie. Die totale navorsingsproses begin by die keuse van 'n geskikte onderwerp en eindig by die implementering van resultate. Waar die keuse van 'n onderwerp gegrond is op 'n bestaande behoefte, is die implementering van resultate slegs die afronding van die proses. Die keuse van 'n geskikte onderwerp is derhalwe die belangrikste stap in die navorsingsproses, maar nie altyd eenvoudig nie, veral wanneer die navorser of student 'n voordelige bydrae tot 'n organisasie soos die SA Weermag wil maak. Die lewensvatbaarheidstudie bied egter die oplossing tot die keuseprobleem, terwyl aksienavorsing die totale navorsingsproses, op grond van deelname van aile betrokkenes, beklemtoon.
Nieuwe opvattingen over het moderne imperialisme
B.W. Schaper
BMGN : Low Countries Historical Review , 1971,
Golden Research Thoughts , 2012, DOI: 10.9780/22315063
Abstract: This paper explores various ides regarding interactive teaching. Interactive teaching is nothing but sharing the expectation of a teacher with the students. It points out how interactive teaching helps to increase students motivation and confidence of learning. Effective and impressive teaching cannot take place without interaction. The benefit of interactive teaching is that the students become active agents in their own learning. This paper focus on how cooperative learning method is beneficial to the students for learning social and scholastic skills as well as valuable skills for life. It also throws light on how it helps the students to learn more about how to communicate. The aim of interactive teaching is to create fluency in communication among the students.
The evolution of fire and invasive alien plant management practices in fynbos
B.W. van Wilgen
South African Journal of Science , 2010, DOI: 10.4102/sajs.v105i9/10.106
Abstract: The history and development of fire and invasive alien plant management policies in fynbos during the 20th century are reviewed. Fire was initially condemned outright as a destructive force, but as its vital role became better understood, management policies switched from protection to active burning in 1968. During the 1970s, large, coordinated research programmes were established, resulting in a solid basis of knowledge on which to develop fire management policies. Despite policies of prescribed burning, wild fires remain the dominant feature of the region, fortunately driving a variable fire regime that remains broadly aligned with conservation objectives. The problem of conserving fire-adapted fynbos is complicated by invading alien trees that are also fire-adapted. Research results were used to demonstrate the impacts of these invasions on water yields, leading to the creation of one of the largest alien plant control programmes globally. Despite improvements in control methods, alien trees, notably pines, continue to spread almost unchecked. Biological control offered some hope for controlling pines, but was ruled out as too high a risk for these commercially-important trees. Failure to address this problem adequately will almost certainly result in the severe degradation of remaining fynbos ecosystems.
The evolution of fire management practices in savanna protected areas in South Africa
B.W. van Wilgen
South African Journal of Science , 2010, DOI: 10.4102/sajs.v105i9/10.107
Abstract: The history and development of ecologically-based fire management policies in savanna protected areas during the 20th century are reviewed. Research on fire in savannas began in the 1950s, and from the 1980s onwards, managers of savanna protected areas experimented on large scales with different management approaches. New ecological paradigms that embraced variability in space and time, and management goals that broadened from single-species to biodiversity conservation, precipitated significant changes to management approaches in the 1990s. Many lessons have been learnt in the process, allowing for the derivation of general principles regarding both the effects of fire and managerial ability to influence fire regimes on a large scale. Significant challenges remain; these include dealing with increasing CO2 concentrations in the atmosphere, and with interactions between fire and increasing elephant numbers in protected areas. The ability of savanna managers to deal with these challenges in the context of an imperfect understanding will be determined by how well, and how fast, they can learn from experience.
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