Subsistence strategies during the Late Pleistocene in the southern Cape of South Africa: Comparing the Still Bay of Blombos Cave with the Howiesons Poort of Klipdrift Shelter (original) (raw)
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Foraging strategies during the final Middle Stone Age occupation at Sibudu Cave, South Africa
This study discusses the subsistence strategies from the final Middle Stone Age occupation (~38,000 years ago) at Sibudu Cave, South Africa, through identifying which animal resources were exploited, and how they were acquired. The faunal profile suggest that two complementary strategies were being used: one focusing on small (Sizes 1 and 2) ungulates that were most likely acquired close to the site; and the other focusing on larger (Sizes 3 and 4) ungulates that were likely hunted farther away from the site. The final Middle Stone Age assemblage from Sibudu was compared with several others from the broader region that also date to late MIS 3. This comparison, albeit inhibited by small sample sizes, suggests diversity in hunting patterns that is most parsimoniously explained by localised behavioural adaptations to different environments. The late and final Middle Stone Age assemblages from Sibudu were also compared and found to not be significantly different, suggesting similar hunting patterns during the two environmentally similar occupations.
As one of the few sites that preserve fauna from the Howiesons Poort (HP) and the immediately post-HP Middle Stone Age (MSA), Sibudu Cave provides a unique opportunity to explore the range of variability in subsistence behaviors during this important phase in human behavioral evolution. In addition to providing information on subsistence, the faunal assemblage serves as a means of reconstructing the environmental conditions during these two periods. While the HP fauna is dominated by species that prefer closed (particularly forested) habitats, the fauna from the upper-most layers of the post-HP MSA are largely representative of open conditions. These results largely coincide with macrobotanical analyses and may simply indicate that the extent of the riverine forest near the site was greater during the HP. Alternatively, the pattern could be indicative of a marked intensification in the exploitation of the environment in the immediate vicinity of the shelter during the HP, perhaps resulting from a decline in the productivity of adjacent regions. We also document variation in the frequency of the different bovid size classes over time. The evidence shows a declining focus on the smallest bovids after the HP, with a parallel increase in the frequency of large and very large bovids. Beyond a heavy focus on small bovids, small mammals and suids also occur at higher frequencies during the HP. Although the HP faunal assemblage is largely unique as compared to the bulk of the MSA sequence at Sibudu, the evidence presented here suggests that the transition between the HP and the post-HP MSA may have been more gradual than abrupt. Our results indicate that the HP and post-HP MSA inhabitants of Sibudu Cave were capable hunters; however, hunting strategies appear to show marked variation over time. We propose that the variability in animal procurement strategies reflects a degree of behavioral plasticity beyond that generally attributed to MSA populations.
2013
"In this paper, we analyze faunal data from southern Africa in order to explore the nature and extent of variability in human hunting strategies and diet breadth during the Middle Stone Age (MSA). Our analysis incorporates data from eight sites that span marine isotope stages (MIS) 6–3 (∼170–40 ka). The sample includes both coastal and inland sites; while it primarily derives from cave and rock shelter contexts (Blombos, Die Kelders, Diepkloof, Klasies River, Pinnacle Point, Sibudu, and Ysterfontein), we also include one open-air site (Florisbad). The data indicate marked changes in subsistence over time—of particular note is a spike in the exploitation of small ungulates and other small mammals during MIS 4. Trends in shellfish utilization also suggest an increasing dietary breadth over time, although shellfish consistently represent only a small portion of the overall diet. We close with a discussion of several causal mechanisms (environment, demography, technology, and cognition) that could account for the patterning evidenced in the data. While environmental change appears to play an important role in shaping the character of the data, we argue that no single causal factor can account for the full range of variability."
There is a general trend for increased selectivity and longer transport distances of lithic raw materials for flintknapping in the Middle Stone Age compared to the Earlier Stone Age. The Stratum 4a assemblage at Kathu Pan 1, Northern Cape, South Africa, which dates to ~500 ka, presents a unique opportunity for assessing Pleisto-cene raw material foraging strategies at the onset of the Middle Stone Age. In this paper, I identify potential primary and secondary sources for the raw materials used for lithic reduction at Kathu Pan 1 (KP1), and quantify raw material variability at nearby secondary sources. Patterns of raw material selection are identified within the KP1 Stratum 4a assemblage and compared to a sample from the underlying Stratum 4b, an Acheulean assemblage , to test for a temporal pattern. Raw material use during the Stratum 4a occupation of Kathu Pan, which is focused on abundant locally available resources for flintknapping, is consistent with the general pattern for Earlier Stone Age foraging strategies, and differs from evidence at some more recent Middle Stone Age sites that show longer transport distances and increased selectivity for certain high-value materials. While many aspects of technology change at KP1 ~500 ka, these technological shifts are not associated with a significant change in the kinds of raw material that were exploited. There are, however, differences in how the raw material was exploited. In Stratum 4a, there is evidence that hominins intentionally exploited the natural banding in banded ironstone formation in order to produce elongated products, and this evidence is lacking in the underlying Acheulean assemblage.
Quaternary International, 2019
Zooarchaeological data offer a unique opportunity to examine both palaeoenvironmental and behavioural trends using single datasets. In this study, we combine taphonomic and palaeoecological analyses of the faunal remains from recent excavations from the Still Bay layers at Blombos Cave to explore subsistence behaviour during this significant period in behavioural modernity. The c. 77-72 ka Still Bay is linked to innovative technology and the expression of complex cognition but is often lumped together as a homogenous entity. Here, we assess subsistence strategies within the Still Bay at Blombos Cave by examining zooarchaeological data from each layer. We investigate temporal changes during this techno-complex in an attempt to place subsistence behaviour within a paleoecological context. Our results show significant differences in surface modification frequencies between the early and middle/later Still Bay phases. Large and medium-sized ungulates were processed differently and filleting was probably an important activity. The data show that changes in shellfish density from the early to later Still Bay correspond to changes in ungulate representation. This may be due to changing environmental conditions around Blombos or shifting foraging strategies. This shift may also be associated with transport decisions for larger mammals. We discuss mobility patterns and the connection between subsistence strategies, environmental change and occupational intensity during the Still Bay levels at Blombos Cave.
This paper examines changes in the organization of lithic technological systems during the later Middle Stone Age (MSA) of South Africa. Using principal components analysis (PCA), the study looks at the lithic data from two important South African MSA sites: Blombos Cave and Klasies River Mouth. The paper uses PCA to describe the transition to (1) the biface-dominated Still Bay industry at Blombos Cave and (2) the microlithic Howiesons Poort industry at Klasies River Mouth. Based on these analyses, the paper offers a synthetic scenario of the emergence of the Still Bay industry from earlier MSA industries, closely followed by the dramatic transition to the Howiesons Poort. Using a few principles of tool design and behavioral ecological models derived from the study of modern foragers, the paper suggests that the Still Bay came about as the result of deteriorating environmental conditions at the beginning of Oxygen Isotope Stage 4, which caused resources to become scarce and more widely distributed. The study proposes that the bifacial point strategy of the Still Bay was a response to wider mobility patterns and increased movement away from lithic raw material sources. The paper then suggests that Howiesons Poort emerged as information sharing strategies improved, and resources in the environment could be more efficiently targeted with more task-specific tools. The paper closes by reviewing the implications of these findings for modern human origins in South Africa.
The Howiesons Poort techno-complex of southern Africa was a particularly significant phase in the development of complex cognition in Homo sapiens and new sites are crucial to our understanding of this period. Here, we present the results of a taphonomic and zooarchaeological analysis of Klipdrift Shelter to investigate subsistence strategies during the Late Pleistocene. In particular, we focus on the tapho-nomic history of the assemblage. Our analysis shows that the Klipdrift Shelter faunal assemblage is extensively fragmented; probably as a result of anthropogenic processing and post-depositional alteration. As a result, little significant information can be extrapolated from the analysis of skeletal-part abundance per layer. Human involvement in the accumulation of ungulate, small mammal, carnivore and tortoise remains is apparent in all layers. We show evidence of disarticulation, marrow extraction, skinning, filleting and carnivore consumption and document the processing of low-ranked game and elements. We also discuss the possibility of remote-capture technology at Klipdrift during the Howiesons Poort.
The Howiesons Poort techno-complex of southern Africa was a particularly significant phase in the development of complex cognition in Homo sapiens and new sites are crucial to our understanding of this period. Here, we present the results of a taphonomic and zooarchaeological analysis of Klipdrift Shelter to investigate subsistence strategies during the Late Pleistocene. In particular, we focus on the taphonomic history of the assemblage. Our analysis shows that the Klipdrift Shelter faunal assemblage is extensively fragmented; probably as a result of anthropogenic processing and post-depositional alteration. As a result, little significant information can be extrapolated from the analysis of skeletal-part abundance per layer. Human involvement in the accumulation of ungulate, small mammal, carnivore and tortoise remains is apparent in all layers. We show evidence of disarticulation, marrow extraction, skinning, filleting and carnivore consumption and document the processing of low-ranked game and elements. We also discuss the possibility of remote-capture technology at Klipdrift during the Howiesons Poort.
The Journal of Island and Coastal Archaeology, 2009
Hunting and gathering was practiced for many hundreds of thousands of years in South Africa's Western Cape region, until ceramics and a stock-keeping economy first appeared c. 2,000 years ago, and in the Elands Bay and Lamberts Bay areas 200 years later. Subsistence and settlement patterns in this part of the West Coast of South Africa changed dramatically after this date, but the nature of interactions between indigenous groups engaging with these two types of subsistence practices is still poorly understood. The cultural-contact scenarios so far proposed view this interaction as basically competitive, with forager groups living at the margins of herder society and compelled to change their subsistence and settlement choices by focusing on small food parcels and having to move to less accessible areas. Observations from Borrow Pit Midden and other sites in the study area do not support this scenario. Instead, their records suggest flexible adaptive responses among foragers when at coastal and pericoastal locations. Overall, an opportunistic subsistence strategy was practiced mostly within the immediate surrounding environment of camps with high mobility, characterizing forager settlement. The components of a new cultural-contact model are emerging, but much remains to be done before it is established on a reliable empirical foundation.
Journal of Human Evolution, 2019
The African Middle Pleistocene (781e126 ka) is a key period for human evolution, witnessing both the origin of the modern human lineage and the lithic turnover from Earlier Stone Age (ESA) Acheulean bifacial tools to Middle Stone Age (MSA) prepared core and point technologies. This ESA/MSA transition is interpreted as representing changing landscape use with greater foraging distances and more active hunting strategies. So far, these behavioral inferences are mainly based on the extensive stone tool record , with only a minor role for site-based and regional faunal studies. To provide additional insights into these behavioral changes, this paper details a pan-African metastudy of 63 Middle Pleistocene faunal assemblages from 40 sites. A hierarchical classification system identified 26 well-contextualized assemblages with quantitative paleontological and/or zooarcheological data available for detailed comparative analyses and generalized linear mixed modeling. Modeling of ungulate body size classes structured around three dimensions (context, antiquity and technology) illustrates no one-to-one correlation between changes in lithic technology (Acheulean vs. MSA) and changes in prey representation. All assessed faunal assemblages are dominated by medium-sized bovids, and variations between smaller and larger body size classes are linked to site context (cave vs. open-air), with an increase in cave sites during the Middle Pleistocene. Current data do not signal a broadening of the hominin dietary niche during the Middle Pleistocene; no meaningful variation was visible in the exploitation of smaller-sized bovids or dangerous game, with coastal resources exploited when available. Proportions of anthropo-genic bone surface modifications, and hence carcass processing intensity, do increase over time although more zooarcheological data is crucial before making behavioral inferences. Overall, this paper illustrates the potential of broad scale comparative faunal analyses to provide additional insights into processes of human behavioral evolution and the mechanisms underlying patterns of technological, chronological and contextual change.