The Cost of Gathering Among the Baka Forager-Horticulturalists From Southeastern Cameroon

What present-day foragers do for their living and what they eat have long been privileged areas for exploring human behavior, global health, and human evolution. While many studies have focused on hunting and meat acquisition, less attention has been given to gathering and plant foods. Despite evidence of variation in both nutritional quality and energetic costs of gathering different plants, the overall effort spent on gathering in relation to other subsistence tasks is still under explored. In the current context of economic, climate, and social changes, many forager societies also rely on other subsistence strategies, including agriculture and wage labor. In this study, we aim to explore the place of gathering in the livelihood of a mixed economy society, the Baka forager-horticulturalists of southeastern Cameroon, by comparing the involvement and the costs of activities related to food acquisition. From a pool of 153 adult participants (97 women and 56 men), we collected 246 daily records using a GPS (Global Positioning System) tracker combined with heart rate monitor and time allocation recalls. We compared the duration, distance traveled, and the intensity of work, measured by calculating the metabolic equivalent of task (MET), of subsistence activities related to food acquisition. Results from this work show that gathering activities, performed by both women and men, are energetically costly, with higher MET values than hunting and fishing activities. Furthermore, the MET values vary depending on the targeted plant foods. We discuss these insights in the overall framework of subsistence patterns, merging them with the socio-cultural and environmental factors that might explain Baka livelihood and subsistence strategy.

Egalitarianism to gender inequality: Cross-cultural exploration of gender relations, in economic systems

Gender inequality has generated a lot of debates among scholars across disciplines. Much of these studies have not explored a robust scholarship on the historical development of gender inequality by comparing different human societies and their subsistence strategies. This review study is designed to fill this gap, thereby contributing to corpus of literature on gender inequality in economic relations. As a historical research, the study uses secondary materials. These materials are mainly ethnographies of the societies under comparison. The study compares the roles of each of the gender categories in subsistence activities, in economic systems, to trace the sources of gender inequality in economic relations. Data available suggest egalitarian gender and economic relations. However, as societies evolved, there became a gradual decline in egalitarianism, leading to marked inequality. The inequality is relative to the complexity of social structure peculiar to the societies under review.

La subsistencia en el Magdaleniense Mediterráneo ibérico

Este libro aporta datos relevantes para el conocimiento de las poblaciones humanas modernas y sus actividades de subsistencia en el área central del Mediterráneo Ibérico durante el Paleolítico Superior Final (Magdaleniense). Para ello se aplica un estudio arqueozoológico y tafonómico a tres conjuntos de fauna de la Cova de les Cendres. This book provides data relevant to understanding modern human populations and their subsistence activities in the central area of the Iberian Mediterranean during the Final Upper Palaeolithic (Magdalenian). It includes an archaeozoological and taphonomic analysis of three faunal assemblages from Cova de les Cendres

Economy and subsistence in the Early Neolithic site of Carrascal (Oeiras, Portugal)

Early Neolithic settlements in southwestern Iberia are rare and, so far, only a few faunal assemblages, mostly from Portuguese Estremadura, have been analysed. The zooarchae- ological studies suggest that animal husbandry was introduced to the area by Neolithic marine settlers originating from the Mediterranean and that domesticated animal herding, particularly sheep, was of outmost importance to the human communities. Located in lower Estremadura, Carrascal is an open-air site, featuring several dwelling structures, a diversified set of artefacts, and a well-established chronology for its Early Neolithic occupation (cal BC). It also yielded a faunal assemblage of considerable size and variability, which includes vertebrates (mammals and fishes) and invertebrates (molluscs). The present study, which focuses on the vertebrate materials, shows that during Early Neolithic the community that inhabited Carrascal practiced a diversified set of subsistence activities in which animal husbandry was prevalent. There is an abundance of caprines (mainly sheep) and swine, followed by cattle. The age at death data suggests a mixed animal exploitation system, with swine being mostly killed at a younger age (presumably for meat), while cattle was slaughtered after reaching adulthood (perhaps for milk production) and caprines show a mixed pattern. This study also reinforces the idea that, for the Neolithic communities living in lower Estremadura, hunting was a less prevailing activity (au- rochs and, perhaps, wild boar were identified, but red deer is absent in Carrascal) when compared with the human groups that lived in the central Estremadura Limestone Massif, a situation that may be due to different ecosystems and human demography.

The Shell Midden Sites of Senegambia

There are hundreds of shell midden sites along the Senegambian coastline. The shell middens were first formed during an eustatic event known as the Nouakchottien marine transgression (6,800–4,000 bp). During that marine transgression, the sea shoreline was pushed back hundreds of miles in the interior. This engendered the flourishing of malacological fauna and several fish species. As a result of this, several natural shell midden were formed. From the Late Stone Age to the 2nd millennium ce, populations exploited the aquatic fauna, which resulted in the formation of anthropogenic shell middens. The littoral where these shell middens are found is divided into three archaeological culture areas. Archaeological excavations at some of those sites, such as Khant and Dioron Boumak, have shed light on the nature of the material culture, subsistence activities, and the cultural history in these areas. Research at Soukouta has added new data on iron technology to understanding of the shell middens culture. These findings have also called into question the division of Senegambian prehistory into four distinct cultural areas known as aires culturelles.

Synergy between climate and human land-use maintained open vegetation in southwest Madagascar over the last millennium

Madagascar experienced environmental change during the Late-Holocene, and the relative importance of climatic and anthropogenic drivers is still the subject of an ongoing debate. Using palaeoecological records from the southwest region at Lake Longiza, we provide additional records to elucidate the complex history of the island and to identify the changes that occurred in the tropical dry forest during the Late-Holocene. The data showed vegetation changes associated with climate variability until AD 900 as reflected by the variation in grass, dry-adapted taxa, deciduous trees, and isotope records. An increasing effect of human activities was recorded, indicated by increased coprophilous spore concentration, as a result of a shift from foraging to pastoralism leading to further opening of the ecosystem from AD 980. At the same time, the regional palaeoclimate record showed drier conditions from around AD 1000, which could have accentuated the changes in vegetation structure. More open vegetation was likely maintained by increased use of fire and herbivory around the area, as indicated by the multiple peaks in the charcoal and spore records. Since AD 1900, the pollen record from the southwest region showed that the ecosystem became increasingly open with an increased abundance of grass, pioneer taxa, and reduced diversity, which was linked to a simultaneous effect of climate and agropastoralism activities. Our study suggests that the dry conditions around AD 950 initiated the replacement of forest-dominant vegetation with grass-dominant communities over the last millennium, depicted as an open ecosystem at present. Subsequent changes in subsistence activities would have further maintained an open-structured ecosystem.

Agricultural Roots and Subnational Cultural Heterogeneity in Domestic Acquisitions

Drawing on the novel-to-the-field rice theory, we study how subnational cultural heterogeneity impacts target performance improvement following an acquisition. Data from domestic acquisitions in the Chinese beer industry show performance is significantly impacted by cultural characteristics formulated through agricultural subsistence activities. We find that both cultural similarity and dissimilarity influence performance: (1) in transactions in which both the acquirer and target are located in rice culture regions, targets achieve greater performance improvement than in those in which both firms are located in a wheat culture region, and (2) targets located in wheat culture areas bought by acquirers from a rice culture area gain greater performance improvement than rice culture targets acquired by firms from a wheat culture area. We also find that acquirers’ experience with rice targets is less beneficial than their experience with wheat targets.