Mini Review
Human Processing of Rodents in Patagonia: The Relevance of Historical and Ethnographical Data for Archaeological Interpretations
Analia Andrade, Instituto Patagónico de Ciencias Sociales y Humanas, Argentina.
Received Date: January 17, 2019; Published Date: February 05, 2019
Summary
The consumption of small mammals was a widespread practice between indigenous societies worldwide. Modern taphonomic studies carried out upon bone assemblages from archaeological sites in northern Patagonia (Argentina) demonstrate that Caviomorph rodents were also included in the diet of Patagonian populations, both from the steppe and the forests, at least since the Late Holocene. The revision of historical and ethnographical documents written by priests, naturalists and ethnographers during c. XVI-XX allow to corroborate that rodents were intensively exploited in Patagonia, continental and insular. Bones, meat and skin of the animals were employed for diverse purposes, and the gathering activity was guided by women and children.
Keywords: Human rodent consumption; Intensive exploitation; Small mammals; Patagonia; Ethnography; Zooarchaeology; Culture and ideology.
Introduction
The consumption and utilization of rodent species by indigenous societies was documented worldwide through diverse cultural practices, both religious and economic [1-6]. The Olduvai Gorge (1.76 Ma, Tanzania) is the earliest archaeological documentation of hominids micromammals consumption [7]. In the Central Andes, the caviidae Cavia porcellus was domesticated since pre-Columbian times [8,9]. and it is included in ritual ceremonies [10,11] Aymara and Quechua populations from the Puna of Argentina, Bolivia and Chile uses the skins of the Abrocoma species, and specimens of Galea musteloides with cranial deformations have been found in tombs suggesting micromammals captivity [12].
While in Patagonia (southern part of South America) the proportions of rodent remains in zooarchaeological contexts are, in many cases, higher than those of other taxa, the role of small mammals in human subsistence was underestimated. The reasons for this underestimation were the preponderance attributed for large and medium sized mammals in human diets, the consideration of rodents as intrusive (and bioturbation agents) into the archaeological sequences and the absence of clear evidences (like cut marks) that could allow to associate them with defined cultural practices. This review discusses the intensity in the exploitation of certain species of rodents in Patagonia. It is argued – based on archaeological, historical and etnographical evidencesthat indigenous societies used this resource integrally since at least the Late Holocene.
Discussion
Modern taphonomic studies carried out upon small mammals’ assemblages from archaeological sites in northern Patagonia allowed to demonstrate the rodent consumption between Patagonian people. For northwestern arid Patagonia, the Caviomorpha species Ctenomys sp., Microcavia australis and possibly also Galea leucoblephara were exploited by huntergatherers since at least 2000 years BP (13, Loncomán Cave CLO, Rio Negro province). The overrepresentation of skull bones and distal elements of the limbs, the high degree of fragmentation in the bone sample, and the defined pattern of thermal alteration, mostly affecting distal segments of tibias, incisors, premaxillaes and mandibles of caviomorpha species, allowed to include them into the list of species exploited by hunter-gatherers from the northern Patagonian steppes. For northeastern arid Patagonia, the consumption of the cricetid rodent Holochilus brasiliensis and Caviidae species was proposed based upon the presence of cut marks, tools manufactured on rodent bones and thermal alteration [14]. Specific cut marks related with a careful skinning was observed for the caviidae species Cavia aperea and Galea tixiensis from the Argentinean Pampas [15] suggesting the use of the skin. A pattern similar to the observed for the Loncoman Cave small mammal sequence was obtained for some archaeological sites located in the north-Patagonian Andean forest demonstrating that the rodent consumption was not an exclusive practice of the hunter-gatherer populations from the steppe [16]. Moreover, the consumed species –G. eublepharid, M. australis, Ctenomys haigi, and possibly also C. sociabilis- are not typical components of the forest’s fauna, but from un-forested and xeric environments in the near steppe. The presence of those species in the archaeological context raises new hypotheses that are being tested (Andrade, unpublished data) regarding possible changes into the landscape by natural and/or anthropogenic causes, since transport of rodents from the steppe or forest-steppe ecotone is improbable given their small size and the distances involved (20-40km currently, see discussion in 16).
marks, tools manufactured on rodent bones and thermal alteration [14]. Specific cut marks related with a careful skinning was observed for the caviidae species Cavia aperea and Galea tixiensis from the Argentinean Pampas [15] suggesting the use of the skin. A pattern similar to the observed for the Loncoman Cave small mammal sequence was obtained for some archaeological sites located in the north-Patagonian Andean forest demonstrating that the rodent consumption was not an exclusive practice of the hunter-gatherer populations from the steppe [16]. Moreover, the consumed species –G. eublepharid, M. australis, Ctenomys haigi, and possibly also C. sociabilis- are not typical components of the forest’s fauna, but from un-forested and xeric environments in the near steppe. The presence of those species in the archaeological context raises new hypotheses that are being tested (Andrade, unpublished data) regarding possible changes into the landscape by natural and/or anthropogenic causes, since transport of rodents from the steppe or forest-steppe ecotone is improbable given their small size and the distances involved (20-40km currently, see discussion in 16).
Animals consumed are large, diurnal and fossorial-colonial species because they are conspicuous and predictable in space [20]. Taking advantage of these ecological habits, animals were directly stalked at the entrance of their caves, using a pointed stick for their capture. In addition, this gathering activity was guided by sex and age, and linked with the biological and social reproduction [17]. This task oversaw women and children. In addition to be a food resource, the Ctenomys animals provided raw materials to make manufactures. The skin was used as a cephalic girdle to adjust the neonates (during a lunar cycle), to make clothing (also a female task) and as stored bags to transport colour substances. For the selk’nam people, the mother, after the birth, only can eat Ctenomys skin, bird fat, seafood and vegetables, a period in which meat was prohibited, but not the food product of her own gathering activity. For the Mapuche people -also known as Arucanos- who live in south-central Chile, rodents from the families, Chinchillidae and Octodontidae also constituted an important and common food item -and also for the Spanish conquers during scarcity times (12)- showing that inclusion of rodents in prehistoric diets would be a regional pattern.
Conclusion
The consumption of rodents in Patagonia was a topic of debate between researchers, and previous analyses did not advance to distinguish between cultural and natural depositional agents for the small mammals in the archaeological contexts. The inclusion of taphonomic, historical and ethnographical evidences in the analysis allowed to understand that rodents were an important item in the diet of Patagonian indigenous societies –from the actual territories of Chile and Argentina- and constituted a regular resource for local populations. Not only was the meat employed, but also the skin and bones. The high abundance reported in the chronicles would favor their consumption, but they were chosen for the taste, considered even a delicacy.
Acknowledgement
Field and laboratory work were funded by CONICET (Consejo Nacional deInvestigaciones Científicas y Técnicas, Argentina) and ANPCyT (Agencia Nacional de Promoción Científica y Tecnológica). María Florencia del Castillo helped with the English version of this manuscript.
Conflict of Interest
No Conflict of Interest.
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Analia Andrade. Human Processing of Rodents in Patagonia: The Relevance of Historical and Ethnographical Data for Archaeological Interpretations. Open Access J Arch & Anthropol. 1(2): 2019. OAJAA.MS.ID.000507.
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Patagonia; Ethnography; Zooarchaeology; Culture and ideology, corroborate, ceremonies, preponderance, Loncoman, taphonomy, premaxillae’s, fossorial-colonial, Octodontidae, Abrocomidae, eviscerated, caviomorpha, Ctenomys, Holocene.
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