Traditional knowledge of plants used in hunting and fishing practices among Baka hunter-gatherers of eastern Cameroon

Fongnzossie, Evariste Fedoung; Ngansop, Marlène Tounkam; Oishi, Takanori; Biwolé, Achille Bernard; Biye, Elvire Hortense; Ichikawa, Mitsuo

doi:10.1186/s13002-022-00571-3

Cited by 5 publications

(1 citation statement)

References 25 publications

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“…Cognitive strategies involving exploration-exploitation trade-offs under social influence, which we investigated with a simplified and controlled setting, may have implications for cultural variations in the timing of economic independence of younger people. In traditional cultures, social norms often dictate that younger individuals join the workforce early as apprentices and learn from adults (Fongnzossie et al, 2023). Younger individuals in industrial societies, on the other hand, are often under the economic protection of parents for a longer period (Arnett, 2000;Nettle & Frankenhuis, 2020).…”

Section: Discussionmentioning

confidence: 99%

It’s time to stand on my own feet: When to stop social learning from a predecessor in a laboratory information-foraging task

Suganuma,

Naito,

Katahira

et al. 2024

Preprint

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Striking a balance between individual and social learning is one of the key capabilities that support adaptation under uncertainty. Although intergenerational transmission of information is ubiquitous, little is known about when and how newcomers switch from learning loyally from preceding models to exploring independently. Using a behavioral experiment, we investigated how social information available from a preceding demonstrator affects the timing of becoming independent and individual performance thereafter. Participants worked on a 30-armed bandit task for 100 trials. For the first 15 trials, participants simply observed the choices of a demonstrator who had accumulated more knowledge about the environment and passively received rewards from the demonstrator’s choices. Thereafter, participants could switch to making independent choices at any time. We had three conditions differing in the social information available from the demonstrator: choice only, reward only, or both. Results showed that both participants’ strategies about when to stop observational learning and their behavioral patterns after independence depended on the available social information. Participants generally failed to make the best use of previously observed social information in their subsequent independent choices, suggesting the importance of direct communication beyond passive observation for better intergenerational transmission under uncertainty. Implications for cultural evolution are discussed.

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Section: Discussionmentioning

confidence: 99%

It’s time to stand on my own feet: When to stop social learning from a predecessor in a laboratory information-foraging task

Suganuma,

Naito,

Katahira

et al. 2024

Preprint

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The contribution of commonly consumed edible insects to nutrition security in the Eastern D.R. Congo

Ishara,

Matendo,

Ng’ang’a

et al. 2024

Sci Rep

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Edible insects are perceived as an incredible opportunity to mitigate the major challenge of sustainably producing healthy foods for a growing world population in the face of climate change uncertainties over the coming decade. In this study, we assessed the nutrient composition and sensory properties of Acheta domesticus, Apis mellifera, Gnathocera trivittata, Gryllotalpa africana, Imbrasia epimethea, Imbrasia oyemensis, Locusta migratoria, Macrotermes subhylanus, Nomadacris septemfasciata, Rhyncophorus phoenicis, Ruspolia differens and Rhynchophorus ferrugineus consumed in Eastern D. R. Congo. The investigated edible insects are highly appreciated and nutritious, with proteins (20.67–43.93 g/100 g) and fats (14.53–36.02 g/100 g) being the major macro-nutrients, proving their potential to improve diets through food enrichment. The high potassium (24–386.67 mg/100 g), sodium (152–257.82 mg/100 g), magnesium (32–64 mg/100 g), iron (5.3–16.13 mg/100 g), calcium (25–156.67 mg/100 g) and zinc (11–19.67 mg/100 g) content make the assessed edible insects a useful mineral-containing ingredient for preventing undernutrition in countries which are plagued by micronutrient deficiencies. A scatter plot of matrices and Pearson’s correlations between sensory attributes and nutritional composition showed a negative correlation (r = − 0.45) between protein and appearance. While no strong correlation was observed between nutritional attributes and sensory acceptance, a positive correlation was observed between potassium and aroma (r = 0.50), after-taste (r = 0.50) and acceptability (r = 0.52). Principal component analysis results indicated that the two axes accounted for up to 97.4% of the observed variability in the nutrient composition and sensory attributes of commonly consumed edible insects in the Eastern D. R. Congo. Given the significant delicacy and nutritional potential of edible insects highlighted in this paper, households can rely on the latter to meet their nutritional needs rather than conventional livestock, thus contributing to environmental and financial security through local business opportunities.

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The Neolithic Revolution in the Middle East: A survey and speculation article for the Economic History Review

Allen

2024

The Economic History Review

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This paper investigates the causes and the consequences of the emergence of agriculture in the Middle East. Agriculture has emerged in many parts of the world since the end of the last Ice Age about 15 000 years ago. The paper first surveys the Palaeolithic Period to understand why agriculture did not emerge earlier. Then the paper considers the processes that led to the emergence of agriculture in the Middle East. The question is approached as a problem in economic history, and the archaeological record is understood in terms of changes in labour productivity, as measured by calories produced per hour of work, and in the size of the associated agricultural surplus (the difference between the calories produced by a food procurement system and the calories required to sustain the people trying to support themselves with that system). The shift from foraging to the cultivation of wild seeds and the later impact of the emergence of domestic seed and improvements in tool design are assessed in this framework. It is also used to analyse the impact of agriculture on human wellbeing, the origin of manufacturing (e.g. pottery), and the emergence of inequality, states, and warfare.

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Traditional knowledge of plants used in hunting and fishing practices among Baka hunter-gatherers of eastern Cameroon

Cited by 5 publications

References 25 publications

It’s time to stand on my own feet: When to stop social learning from a predecessor in a laboratory information-foraging task

It’s time to stand on my own feet: When to stop social learning from a predecessor in a laboratory information-foraging task

The contribution of commonly consumed edible insects to nutrition security in the Eastern D.R. Congo

The Neolithic Revolution in the Middle East: A survey and speculation article for the Economic History Review

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