T Johns
Biographic Data
| ID | 1306 |
|---|---|
| NAME | T Johns |
| GIVEN NAMES | T |
| FAMILY NAME | Johns |
| SIGNATURE | JOHNS T |
| AFFILIATIONS | McGill University |
| ORCID | 0000-0001-5942-5685 |
| VERIFIED | Yes |
| TOTAL WORKS | 64 |
| TOTAL CITATIONS | 206 |
| AUTHOR COUNT | 64 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1917 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 9 |
Women’s Perinatal Plant Knowledge
Traditional plant use during lactation and postpartum recovery
Global survey of medicinal plants during lactation and postpartum recovery
The Politics of Affective Societies
Many claim that political deliberation has become exceedingly affective, and hence, destabilizing. The authors of this book revisit that assumption. While recognizing that significant changes are occurring, these authors also point out the limitations of turning to contemporary democratic theory to understand and unpack these shifts. They propose, instead, to reframe this debate by deploying the analytic framework of affective societies, which hi…
The determinants of dietary diversity and nutrition
BACKGROUND: Diet and nutrition-related behaviours are embedded in cultural and environmental contexts: adoption of new knowledge depends on how easily it can be integrated into existing knowledge systems. As dietary diversity promotion becomes an increasingly common component of nutrition education, understanding local nutrition knowledge systems and local concepts about dietary diversity is essential to formulate efficient messages. METHODS: Thi…
The Influence of Gender Roles And Human Migrations on the Distribution of Crop Biodiversity in Tharaka, Kenya
Informal seed saving and farmer-to-farmer seed exchange are dictated by local rules and practices, which in turn can influence the distribution and management of crop biodiversity. Such systems are essential components of the livelihoods of small-holder farmers in Kenya and for in situ conservation of intraspecific and interspecific diversity. Using a mixed methods approach combining interviews, focus groups, and a household survey, we identify t…
Supporting farmer participation in formal seed systems
This article examines contemporary challenges of formal seed sector participation for resource-poor farmers in Tharaka and engages in a wider discussion of national seed policy and formal seed sector development in Kenya. While many farmers reported utilising modern seed varieties developed by the formal seed sector, the majority of these were introduced through seed aid and maintained through seed saving, supporting seed system integration strat…
Institutional factors affecting wild edible plant (WEP) harvest and consumption in semi-arid Kenya
Pervasive food insecurity and poverty in much of the world drives vulnerable populations to harvest natural resources as a means of generating income and meeting other household needs. Wild edible plants (WEPs) are a particularly common and effective coping strategy used to increase socio-ecological resilience in Sub-Saharan Africa where agricultural systems are often sensitive to environmental perturbations and instability. WEPs are collected ac…
Intraspecific Diversity and Seed Management of Pearl Millet (Pennisetum glaucum) in Tharaka, Kenya
Wild leafy vegetable use and knowledge across multiple sites in Morocco
BACKGROUND: There are few publications on the use and diversity of wild leafy vegetables (WLVs) in Morocco. In order to address this gap, we conducted ethnobotanical field work in Taounate, Azilal and El House regions. METHODS: Ethnobotanical collections, free listing, qualitative interviews and a 7 day food frequency questionnaire. RESULTS: More than 30 species in 23 genera of WLV were identified. Of these 4 had not previously recorded as WLVs u…
Understanding the contribution of wild edible plants to rural social-ecological resilience in semi-arid Kenya
Shumsky, S. A., G. M. Hickey, B. Pelletier, and T. Johns. 2014. Understanding the contribution of wild edible plants to rural social-ecological resilience in semi-arid Kenya. Ecology and Society 19(4): 34. https://doi.org/10.5751/ES-06924-190434
Wild Foods from Farm and Forest in the East Usambara Mountains, Tanzania
This study explored the role of wild foods in the diets of children and mothers in the East Usambara Mountains (N = 274 dyads). We identified 92 wild food species. Although dietary diversity (most measures) was not different between seasons, wild foods accounted for a greater percentage of items consumed in the wet (food insecure) season. Many wild foods were obtained on farm; wild foods obtained from the forest accounted for less than 3% of food…
Bridging the “two cultures” in ethnopharmacology
Perceived health and medicinal properties of six species of wild edible plants in north-east Lebanon
Objectives Wild edible plants (WEP) play the dual role of securing food diversity and promoting health in traditional societies. Current simplified dietary habits contribute to increasing population health risks. Since WEP are integral to the diet of traditional communities, identifying their significance as foods to people provides further evidence to conserve them and promote their consumption. Six species of WEP were identified as integral to …
Laughing Off Apartheid
Laughing Off Apartheid: Comedy at the Twilight of White Minority Rule Timothy Johns (bio) Over the course of the 1980s, as the curtain fell on apartheid in South Africa, something peculiar happened: people started laughing. Two comedies, The Cosby Show (1984–1992), an American "sit-com" (situational comedy), and The Gods Must Be Crazy (1980), one of the few South African films to successfully penetrate foreign markets, saturated popular media. Wh…
Biological Diversity, Dietary Diversity, and Eye Health in Developing Country Populations
Antioxidant activity relates to plant part, life form and growing condition in some diabetes remedies
Traditional dietary additives of the Maasai are antiviral against the measles virus
Water extracts from Momordica charantia increase glucose uptake and adiponectin secretion in 3T3-L1 adipose cells
Climate change and drought
Climate change is likely to increase drought risk during the 21 st century in many parts of the world. Climate model projections, under a range of emissions scenarios, consistently show that seasonal rainfall is likely to decrease across large parts of southern Europe, north Africa, central Asia and southern Africa, and reductions are also possible in other dry parts of the world. The effects of climate change, however, will be superimposed on th…
Biofortification, biodiversity and diet
Full-term, peri-urban South African infants under 6 months of age are at risk for early-onset anaemia
Objective: There is a paucity of data on the micronutrient status of low-income, lactating South African women and their infants under 6 months of age. The aim of this study was to elucidate the level of anaemia and vitamin A deficiency (VAD) in peri-urban breast-feeding women and their young infants. Design: Cross-sectional study including anthropometric, biochemical and infant feeding data. Setting: Peri-urban settlement in Cape Town, South Afr…
Aboriginal Plant Use in Canada’s Northwest Boreal Forest
Antioxidant activity in medicinal plants associated with the symptoms of diabetes mellitus used by the Indigenous Peoples of the North American boreal forest
The Politics of Affective Societies
The series EmotionCultures is a collection of works centered around current questions raised in interdisciplinary and innovative research on emotions.At the core are empirical studies from Social and Cultural Anthropology that analyze processes of social and cultural modeling of emotions -always in close theoretical as well as methodological connection to various other disciplines.Key topics concern the generation of emotional codes in interactio…
Herbal remedies of the Luo of Siaya District, Kenya
Chinanteco Management of Aechmea magdalenae
Climate change scenarios for global impacts studies
Wild leafy vegetable use and knowledge across multiple sites in Morocco
BACKGROUND: There are few publications on the use and diversity of wild leafy vegetables (WLVs) in Morocco. In order to address this gap, we conducted ethnobotanical field work in Taounate, Azilal and El House regions. METHODS: Ethnobotanical collections, free listing, qualitative interviews and a 7 day food frequency questionnaire. RESULTS: More than 30 species in 23 genera of WLV were identified. Of these 4 had not previously recorded as WLVs u…
Herbal remedies of the Batemi of Ngorongoro District, Tanzania
Understanding the contribution of wild edible plants to rural social-ecological resilience in semi-arid Kenya
Shumsky, S. A., G. M. Hickey, B. Pelletier, and T. Johns. 2014. Understanding the contribution of wild edible plants to rural social-ecological resilience in semi-arid Kenya. Ecology and Society 19(4): 34. https://doi.org/10.5751/ES-06924-190434
Food plants of the Luo of Siaya district, Kenya
Ongoing evolution of the potato on the altiplano of western Bolivia
The Chemical Ecology of Human Ingestive Behaviors
Ingested nutrients and nonnutrients are presented as determinants in human evolution. The amount and quality of energy, including fat, various foods supply are important criteria in governing selection. Oxidative stress associated with respiration of energy is a factor in the etiology of dietary diseases, such as cardiovascular disease and cancer, and in aging. Evolutionary trends such as gains in brain and body sizes, greater ingestion of long-c…
Use and conservation of woody vegetation by the Batemi of Ngorongoro District, Tanzania
The determinants of dietary diversity and nutrition
BACKGROUND: Diet and nutrition-related behaviours are embedded in cultural and environmental contexts: adoption of new knowledge depends on how easily it can be integrated into existing knowledge systems. As dietary diversity promotion becomes an increasingly common component of nutrition education, understanding local nutrition knowledge systems and local concepts about dietary diversity is essential to formulate efficient messages. METHODS: Thi…
Food plants and masticants of the batemi of Ngorongoro District, Tanzania1
The Politics of Affective Societies
Many claim that political deliberation has become exceedingly affective, and hence, destabilizing. The authors of this book revisit that assumption. While recognizing that significant changes are occurring, these authors also point out the limitations of turning to contemporary democratic theory to understand and unpack these shifts. They propose, instead, to reframe this debate by deploying the analytic framework of affective societies, which hi…
Institutional factors affecting wild edible plant (WEP) harvest and consumption in semi-arid Kenya
Pervasive food insecurity and poverty in much of the world drives vulnerable populations to harvest natural resources as a means of generating income and meeting other household needs. Wild edible plants (WEPs) are a particularly common and effective coping strategy used to increase socio-ecological resilience in Sub-Saharan Africa where agricultural systems are often sensitive to environmental perturbations and instability. WEPs are collected ac…
Maasai Gummivory
Aboriginal Plant Use in Canada’s Northwest Boreal Forest
Intraspecific Diversity and Seed Management of Pearl Millet (Pennisetum glaucum) in Tharaka, Kenya
Natural Health Product Use in Canada
Some Considerations for the Prospective Ethnographic Cinematographer
Petition for Compensation for the Loss of Slaves by Emancipation in the Danish West Indies
Women’s Perinatal Plant Knowledge
Supporting farmer participation in formal seed systems
This article examines contemporary challenges of formal seed sector participation for resource-poor farmers in Tharaka and engages in a wider discussion of national seed policy and formal seed sector development in Kenya. While many farmers reported utilising modern seed varieties developed by the formal seed sector, the majority of these were introduced through seed aid and maintained through seed saving, supporting seed system integration strat…
Laughing Off Apartheid
Laughing Off Apartheid: Comedy at the Twilight of White Minority Rule Timothy Johns (bio) Over the course of the 1980s, as the curtain fell on apartheid in South Africa, something peculiar happened: people started laughing. Two comedies, The Cosby Show (1984–1992), an American "sit-com" (situational comedy), and The Gods Must Be Crazy (1980), one of the few South African films to successfully penetrate foreign markets, saturated popular media. Wh…
Biofortification, biodiversity and diet
With Bitter Herbs They Shall Eat It
Petition for Compensation for the Loss of Slaves by Emancipation in the Danish West Indies
Some Considerations for the Prospective Ethnographic Cinematographer
Phototoxic and antibiotic activities of plants of the asteraceae used in folk medicine
Anti-reproductive and other medicinal effects of Tropaeolum tuberos um
Determinants of taste perception and classification among the Aymara of Bolivia
Twenty‐two Aymara‐speaking subsistence farmers were tested for response to pure aqueous solutions representing the basic four tastes. Survey methods provided data on diet composition and on the Aymara taste taxonomy. In comparison to typical western populations, subjects attributed increased pleasantness to sweetness and decreased pleasantness to salt, sour and bitter tastes that were not readily separable experimentally. High preference for gluc…
Plant diffusion—New approaches to a classic ethnobotanical problem
Stone, Doris, ed. Pre‐Columbian Plant Migration. Cambridge: Harvard University Press, 1984. xiii + 183 pp. including photographs, maps, separate chapter references. $30.00 paper
Swimming Pools at War
Taste evaluation of potato glycoalkaloids by the Aymara
Ongoing evolution of the potato on the altiplano of western Bolivia
Laki-laki (Dennstaedtia glauca, polypodiaceae)
A Festival of Plays
Herbal remedies of the Luo of Siaya District, Kenya
Traditional detoxification of acorn bread with clay
Parallel uses of clay in the traditional preparation of unpalatable acorns in California and Sardinia provide a case study for testing hypotheses on the detoxification function of geophagy. In laboratory simulations of the traditional methods, the addition of clays collected at the specific sites reduced the tannic acid digested from acorns by up to 77%. Reduction in tannic acid would make these nuts palatable and less toxic and provides a ration…
Food plants of the Luo of Siaya district, Kenya
With Bitter Herbs They Shall Eat It
Factors influencing the dietary intake of indigenous leafy greens by the K'ekchi people of Alta Verapaz, Guatemala
Factors affecting dietary use of indigenous leafy greens by the K'ekchi people of San Pedro Carcha, Guatemala, were studied over a 13‐month period in 3 communities: 1 rural; 1 semi‐rural; and 1 urban. Seventeen species of indigenous greens were recorded in the diet using a 7‐day food frequency questionnaire. There was a significant interaction (p < 0.01) between the frequency of intake of total greens and the frequency of intake of other foods. T…
Factors influencing self-diagnosis and treatment of perceived helminthic infection in a rural Guatemalan community
Nutrition and the environment of indigenous peoples
Phylloquinone as a biochemical marker for the dietary intake of green leafy vegetables by the K'ekchi people of Alta Verapaz, Guatemala
Vitamin K1 (phylloquinone) was examined as a potential biochemical marker of indigenous leafy green vegetable intake. Phylloquinone content for 13 species of indigenous leafy green vegetables currently consumed by the K'ekchi‐speaking people of Alta Verapaz, Guatemala, ranged from 0.20–1.14 mg/100 g fresh weight for raw samples (n = 25), and from 0.27–1.51 mg/100 g fresh weight for cooked samples (n = 14) as determined by reversed‐phase high‐perf…
Herbal remedies of the Batemi of Ngorongoro District, Tanzania
Anti-giardial activity of gastrointestinal remedies of the Luo of East Africa
Consumption patterns and nutritional contribution of Crotalaria Brevidens ( Mitoo ) in Tarime District, Tanzania
We assessed the nutritional benefit of consumption of Crotalaria brevidens (mitoo), a leafy vegetable indigenous to the Lake Victoria basin of East Africa. Food frequency questionnaires and 24‐hour recalls with 74 women in Tarime District, Tanzania, documented the consumption of 24 cultivated and wild species of leafy vegetables and 38 species of fruits during June‐July, 1990. Leaves of cultivated or wild collected Crotalaria brevidens were eaten…
Edible plants of Mara Region, Tanzania
Fifty‐three cultivated food plants and 38 species of edible wild fruits and leafy vegetables were identified during the course of ethnobotanical interviews with 51 informants of Musoma and Tarime Districts, Mara Region, Tanzania, and an accompanying dietary survey of Tarime District. An additional 35 potentially edible species of fruits, leafy vegetables and underground plant portions were identified by searching the East Africa Herbarium, Nairob…
Risk assessment of the consumption of a pyrrolizidine alkaloid containing indigenous vegetable crotalaria brevidens (mitoo)
Potential risk from the consumption of leaves of Crotalaria brevidens, an indigenous leafy vegetable of the Lake Victoria basin of East Africa, was assessed. Wild and cultivated forms of this indigenous vegetable contained two major pyrrolizidine alkaloids on thin layer chromatography, but in quantities that were too small to quantify by 1H Nuclear Magnetic Resonance or Ultraviolet spectrometry. Based on the detection limits of these methods and …
Food plants and masticants of the batemi of Ngorongoro District, Tanzania1
Biology (48 works) · Medicine (32 works) · Ecology (29 works) · Geography (28 works) · Traditional medicine (19 works) · Botany (17 works) · African Botany and Ecology Studies (15 works) · Ethnobotanical and Medicinal Plants Studies (12 works) · Food Science (12 works) · Indigenous (11 works)