Taphonomic decoding of the paleobiological information locked in a lower Pleistocene assemblage of large mammals

Paleobiology ◽  
2001 ◽  
Vol 27 (3) ◽  
pp. 512-530 ◽  
Author(s):  
Paul Palmqvist ◽  
Alfonso Arribas
Keyword(s):  
Analytical Study ◽  
Body Parts ◽  
Large Mammals ◽  
Mineral Density ◽  
Lower Pleistocene ◽  
Recent Developments ◽  
Methodological Approaches ◽  
Venta Micena ◽  
Taphonomic Analysis ◽  
Wild Dogs

The processes of fossilization have usually been perceived by paleontologists as destructive ones, leading to consecutive (and in most cases irretrievable) losses of paleobiological information. However, recent developments of conceptual issues and methodological approaches have revealed that the decrease in paleobiological information runs parallel to the gain of taphonomic information. This taphonomic imprinting often makes it possible to decode the fraction of paleobiological information that was lost during fossilization, and may also contribute new data for deciphering paleobiological information that was not originally preserved in the assemblage, such as paleoethology. A good example is the study of the macrovertebrate assemblage from the lower Pleistocene site at Venta Micena (Orce, southeastern Spain). Taphonomic analysis showed that the giant, short-faced hyenas (Pachycrocuta brevirostris) selectively transported ungulate carcasses and body parts to their maternity dens as a function of the mass of the ungulates scavenged. The fracturing of major limb bones in the dens was also highly selective, correlating with marrow content and mineral density. Important differences in bone-cracking intensity were related to which species the bones came from, which in turn biased the composition of the bone assemblage. The analysis of mortality patterns deduced for ungulate species from juvenile/adult proportions revealed that most skeletal remains were scavenged by the hyenas from carcasses of animals hunted by hypercarnivores, such as saber-tooths and wild dogs. Analytical study of the Venta Micena assemblage has unlocked paleobiological information that was lost during its taphonomic history, and has even provided paleobiological information that was not preserved in the original bone assemblage, such as the paleoethology of P. brevirostris, which differed substantially from modern hyenas in being a strict scavenger of the prey hunted by other carnivores.

scholarly journals Déjà vu: A reappraisal of the taphonomy of quarry VM4 of the Early Pleistocene site of Venta Micena (Baza Basin, SE Spain)

2021 ◽  
Author(s):  
Paul Palmqvist ◽  
M. Patrocinio Espigares ◽  
Juan A. Pérez-Claros ◽  
Borja Figueirido ◽  
Antonio Guerra-Merchán ◽  
...  
Keyword(s):  
Skeletal Remains ◽  
Small Sample ◽  
Early Pleistocene ◽  
Accumulation Process ◽  
Large Mammals ◽  
Mineral Density ◽  
Se Spain ◽  
Venta Micena ◽  
Taphonomic Analysis ◽  
Bone Accumulation

Abstract Venta Micena, an Early Pleistocene site of the Baza Basin (SE Spain), preserves a rich and diverse assemblage of large mammals. VM3, the main excavation quarry of the site, has been interpreted as a den of the giant hyaena Pachycrocuta brevirostris in the plain that surrounded the Baza palaeolake. Taphonomic analysis of VM3 has shown that the hyaenas scavenged the prey previously hunted by the hypercarnivores, transported their remains to the communal den, and consumed the skeletal parts according to their marrow contents and mineral density. In a recent paper, a small sample of remains unearthed from VM4, an excavation quarry ~350 m distant from VM3, are analysed. The authors indicate several differences in the taphonomic features of this assemblage with VM3, and even suggest that a different carnivore could have been the agent involved in the bone accumulation process. Here we make a comparative analysis of both quarries and analyse more skeletal remains from VM4. Our results indicate that the assemblages are broadly similar in composition, except for slight differences in the frequency of megaherbivores, carnivores and equids according to NISP values (but not to MNI counts), the degree of bone weathering, and the intensity of bone processing by the hyaenas. Given that VM4 and VM3 were not coeval denning areas of P. brevirostris, these differences suggest that during the years when the skeletal remains were accumulated by the hyaenas at VM3, the rise of the water table of the Baza palaeolake that capped with limestone the bones was delayed compared to VM4, which resulted in their more in-depth consumption by the hyaenas.

scholarly journals Déjà vu: a reappraisal of the taphonomy of quarry VM4 of the Early Pleistocene site of Venta Micena (Baza Basin, SE Spain)

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Paul Palmqvist ◽  
M. Patrocinio Espigares ◽  
Juan A. Pérez-Claros ◽  
Borja Figueirido ◽  
Antonio Guerra-Merchán ◽  
...  
Keyword(s):  
Skeletal Remains ◽  
Small Sample ◽  
Early Pleistocene ◽  
Accumulation Process ◽  
Large Mammals ◽  
Mineral Density ◽  
Se Spain ◽  
Venta Micena ◽  
Taphonomic Analysis ◽  
Bone Accumulation

AbstractVenta Micena, an Early Pleistocene site of the Baza Basin (SE Spain), preserves a rich and diverse assemblage of large mammals. VM3, the main excavation quarry of the site, has been interpreted as a den of the giant hyaena Pachycrocuta brevirostris in the plain that surrounded the Baza palaeolake. Taphonomic analysis of VM3 has shown that the hyaenas scavenged the prey previously hunted by the hypercarnivores, transported their remains to the communal den, and consumed the skeletal parts according to their marrow contents and mineral density. In a recent paper (Luzón et al. in Sci Rep 11:13977, 10.1038/s41598-021-93261-1, 2021), a small sample of remains unearthed from VM4, an excavation quarry ~ 350 m distant from VM3, is analysed. The authors indicate several differences in the taphonomic features of this assemblage with VM3, and even suggest that a different carnivore could have been the agent involved in the bone accumulation process. Here, we make a comparative analysis of both quarries and analyse more skeletal remains from VM4. Our results indicate that the assemblages are broadly similar in composition, except for slight differences in the frequency of megaherbivores, carnivores and equids according to NISP values (but not to MNI counts), the degree of bone weathering, and the intensity of bone processing by the hyaenas. Given that VM4 and VM3 were not coeval denning areas of P. brevirostris, these differences suggest that during the years when the skeletal remains were accumulated by the hyaenas at VM3, the rise of the water table of the Baza palaeolake that capped with limestone the bones was delayed compared to VM4, which resulted in their more in-depth consumption by the hyaenas.

scholarly journals Déjà vu: A reappraisal of the taphonomy of quarry VM4 of the Early Pleistocene site 1 of Venta Micena (Baza Basin, SE Spain"

2021 ◽  
Author(s):  
Paul Palmqvist ◽  
M. Patrocinio Espigares ◽  
Juan A. Pérez-Claros ◽  
Borja Figueirido ◽  
Antonio Guerra-Merchán ◽  
...  
Keyword(s):  
Skeletal Remains ◽  
Small Sample ◽  
Early Pleistocene ◽  
Accumulation Process ◽  
Large Mammals ◽  
Mineral Density ◽  
Se Spain ◽  
Venta Micena ◽  
Taphonomic Analysis ◽  
Bone Accumulation

Abstract Venta Micena, an Early Pleistocene site of the Baza Basin (SE Spain), preserves a rich and diverse assemblage of large mammals. VM3, the main excavation quarry of the site, has been interpreted as a den of the giant hyaena Pachycrocuta brevirostris in the plain that surrounded the Baza palaeolake. Taphonomic analysis of VM3 has shown that the hyaenas scavenged the prey previously hunted by the hypercarnivores, transported their remains to the communal den, and consumed the skeletal parts according to their marrow contents and mineral density. In a recent paper, a small sample of remains unearthed from VM4, an excavation quarry ~350 m distant from VM3, are analysed. The authors indicate several differences in the taphonomic features of this assemblage with VM3, and even suggest that a different carnivore could have been the agent involved in the bone accumulation process. Here we make a comparative analysis of both quarries and analyse more skeletal remains from VM4. Our results indicate that the assemblages are broadly similar in composition, except for slight differences in the frequency of megaherbivores, carnivores and equids according to NISP values (but not to MNI counts), the degree of bone weathering, and the intensity of bone processing by the hyaenas. Given that VM4 and VM3 were not coeval denning areas of P. brevirostris, these differences suggest that during the years when the skeletal remains were accumulated by the hyaenas at VM3, the rise of the water table of the Baza palaeolake that capped with limestone the bones was delayed compared to VM4, which resulted in their more in-depth consumption by the hyaenas.

Prey selection by terrestrial carnivores in a lower Pleistocene paleocommunity

Paleobiology ◽  
1996 ◽  
Vol 22 (4) ◽  
pp. 514-534 ◽  
Author(s):  
Paul Palmqvist ◽  
Bienvenido Martínez-Navarro ◽  
Alfonso Arribas
Keyword(s):  
Prey Species ◽  
Prey Selection ◽  
Average Weight ◽  
Long Bones ◽  
Crown Height ◽  
Fresh Meat ◽  
Lower Pleistocene ◽  
Venta Micena ◽  
Wild Dogs ◽  
Selection Of

We report quantitative paleoecologic data on the large mammal assemblage preserved in lower Pleistocene deposits at Venta Micena (Orce, Granada, southeastern Spain). Taphonomic studies show that bones were collected mainly by hyaenids, which transported and deposited them near shallow dens. Differential fragmentation of major long bones was produced by hyaenas as a function of their density and marrow content. Strong selection of prey by carnivores—which preferentially killed juveniles, females, and individuals with diminished locomotor capabilities among ungulate prey species of larger body size—is indicated by (1) the abundance of remains of juvenile ungulates in relation to the average weight of adult individuals in each species, (2) attritional mortality profiles for ungulate species deduced from crown height measurements, (3) the presence of many metapodials with different osteopathologies in their epiphyses, such as arthrosis, and (4) a biased intersexual ratio of large bovids. Comparison of the frequencies with which modern African carnivores kill and scavenge ungulates from various size classes with the abundance of these size categories in the assemblage suggests that the Venta Micena hyaena (Pachycrocuta brevirostris) was a bone-cracking scavenger that fed largely on carcasses of ungulates preyed upon and partially consumed by fresh meat-eating carnivores such us saber-toothed felids (Homotherium latidens and Megantereon whitei) and wild dogs (Canis falconeri).

Paleoecological reconstruction of a lower Pleistocene large mammal community using biogeochemical (δ13C, δ15N, δ18O, Sr:Zn) and ecomorphological approaches

Paleobiology ◽  
2003 ◽  
Vol 29 (2) ◽  
pp. 205-229 ◽  
Author(s):  
Paul Palmqvist ◽  
Darren R. Gröcke ◽  
Alfonso Arribas ◽  
Richard A. Fariña
Keyword(s):  
Feeding Behavior ◽  
Mammalian Species ◽  
Habitat Preferences ◽  
Relative Length ◽  
Metabolic Efficiency ◽  
Large Mammals ◽  
Tall Grass ◽  
Canopy Effect ◽  
Lower Pleistocene ◽  
Venta Micena

Ecomorphological and biogeochemical (trace element, and carbon, nitrogen, and oxygen isotope ratios) analyses have been used for determining the dietary niches and habitat preferences of large mammals from lower Pleistocene deposits at Venta Micena (Guadix-Baza Basin, Spain). The combination of these two approaches takes advantage of the strengths and overcome the weakness of both approaches. The range of δ13Ccollagen values for ungulate species indicates that C3 plants were dominant in the diet of these mammals. δ13Ccollagen values vary among ungulates: perissodactyls have the lowest values and bovids the highest ones, with cervids showing intermediate values. The hypsodonty index measured in lower molar teeth and the relative length of the lower premolar tooth row indicate that the horse, Equus altidens, was a grazing species, whereas the rhino, Stephanorhinus etruscus, was a mixed feeder in open habitats. The similar δ13Ccollagen values shown in both perissodactyls does not reflect differences in feeding behavior with other ungulates, but rather a lower isotope enrichment factor in these monogastric herbivores than in ruminants, owing to their lower metabolic efficiency. The cervids Eucladoceros giulii and Dama sp. show low hypsodonty values, indicating that they were mixed feeders or browsers from forested habitats, an ecomorphologically based conclusion corroborated in the former by its low δ15Ncollagen content (canopy effect). Bovid species (Bovini aff. Leptobos, Soergelia minor, and Hemitragus albus) presumably inhabited open environments, according to their comparatively high hypsodonty and δ15Ncollagen values. Carnivore species (Homotherium latidens, Megantereon whitei, Pachycrocuta brevirostris, Canis falconeri, and Canis etruscus) exhibit higher δ15Ncollagen values than ungulates. These results record the isotopic enrichment expected with an increase in trophic level and are also supported by low bone Sr.Zn ratios. The elevated δ15Ncollagen value for a sample of Mammuthus meridionalis, which came from an individual with unfused epiphyses, confirms that it was a suckling animal. The δ15Ncollagen value of the scimitar-cat H. latidens is well above that obtained for the young individual of Mammuthus, which indicates that juvenile elephants were an important part of its diet. The hippo, Hippopotamus antiquus, yielded unexpectedly high δ15Ncollagen values, which suggest feeding on aquatic, non-N2-fixing plants. The high δ18Ohydroxyl values of bovids Hemitragus and Soergelia and of cervid Dama indicate that these ungulates obtained most of their water requirements from the vegetation. The megaherbivores and Eucladoceros exhibit the lowest δ18Ohydroxyl values, which suggest increased water dependence for them. Paleosynecological analysis was based on the relative abundance of species of large mammals from different ecological categories, determined by feeding behavior and locomotion types. The comparison of the frequencies of such categories in Venta Micena with those found in modern African communities indicates that the composition of the paleocommunity closely resembles those of savannas with tall grass and shrubs. The net above-ground primary productivity estimated for the on-crop biomass of the mammalian species preserved in the fossil assemblage also yields a figure congruent with that expected for an open environment.

Recycling and Reuse in the Roman Economy

2020 ◽  
Keyword(s):  
Building Materials ◽  
Computational Modelling ◽  
Late Antique ◽  
Roman Economy ◽  
Wide Range ◽  
The Status ◽  
Recent Developments ◽  
Methodological Approaches ◽  
First Time ◽  
Site Types

The recycling and reuse of materials and objects were extensive in the past, but have rarely been embedded into models of the economy; even more rarely has any attempt been made to assess the scale of these practices. Recent developments, including the use of large datasets, computational modelling, and high-resolution analytical chemistry, are increasingly offering the means to reconstruct recycling and reuse, and even to approach the thorny matter of quantification. Growing scholarly interest in the topic has also led to an increasing recognition of these practices from those employing more traditional methodological approaches, which are sometimes coupled with innovative archaeological theory. Thanks to these efforts, it has been possible for the first time in this volume to draw together archaeological case studies on the recycling and reuse of a wide range of materials, from papyri and textiles, to amphorae, metals and glass, building materials and statuary. Recycling and reuse occur at a range of site types, and often in contexts which cross-cut material categories, or move from one object category to another. The volume focuses principally on the Roman Imperial and late antique world, over a broad geographical span ranging from Britain to North Africa and the East Mediterranean. Last, but not least, the volume is unique in focusing upon these activities as a part of the status quo, and not just as a response to crisis.

Constitution Making

2021 ◽  
Author(s):  
Felix-Anselm van Lier ◽  
Katrin Seidel
Keyword(s):  
Social Change ◽  
Academic Research ◽  
Political Conflict ◽  
Knowledge Gaps ◽  
Anthropological Research ◽  
Recent Developments ◽  
Methodological Approaches ◽  
Established Democracies ◽  
Constitution Making

Be it in established democracies or in countries emerging from violent political conflict, constitution-making processes have become a key activity in moments of profound political and social change. Over the last three decades, the field of constitution making has witnessed an explosion of academic research from a variety of disciplines. This chapter sketches recent developments in the field, both in academia and in practice, and offers an overview of the conceptual and methodological approaches that have informed the study of such processes so far. The aim of the chapter is to introduce the reader to nascent anthropological research on constitution making and to explore how anthropological methods and theory can serve to address existing knowledge gaps and complement, nuance, and perhaps challenge existing approaches to constitution making.

Trends in adolescent research for the new millennium

2000 ◽  
Vol 24 (3) ◽  
pp. 289-294 ◽  
Author(s):  
Nancy L. Galambos ◽  
Bonnie J. Leadbeater
Keyword(s):  
Adolescent Development ◽  
Young Adulthood ◽  
Qualitative Data ◽  
Life Experiences ◽  
Community Partnerships ◽  
Group Differences ◽  
Current Trends ◽  
Recent Developments ◽  
Methodological Approaches ◽  
The Impact

This article highlights several promising trends in research on adolescence and discusses the likely future course of several recent developments in adolescent research. Current trends include a focus on the transition to young adulthood, the increasing examination of the context and co-occurrence of adolescent problems, and emphasis on the resilience of adolescents in high-risk circumstances. There is a strong need for more research on the cognitive and neurocognitive gains and changes of adolescence and on positive psychosocial behaviours and outcomes for youth. We are just beginning to understand within-group differences in adolescent development, including the life experiences of minority youth, adolescents with disabilities, and homosexual adolescents. The impact of social context and social change on adolescents is also receiving more attention. Methodological approaches likely to be seen more in the future include the use of pattern-centred analyses to complement traditional variable-centred approaches and a greater appreciation for qualitative data analysis as a route to gaining insights into adolescent development. Finally, university-community partnerships are promoted as a way to solve the problems of youth and improve the probability of their healthy futures.

scholarly journals Distribution and density of oxpeckers on giraffes in Hwange National Park, Zimbabwe

2019 ◽  
Author(s):  
Roxanne Gagnon ◽  
Cheryl T. Mabika ◽  
Christophe Bonenfant
Keyword(s):  
Foraging Behaviour ◽  
Food Resource ◽  
Bird Species ◽  
Body Parts ◽  
Large Mammals ◽  
Large Herbivores ◽  
Aggregation Behaviour ◽  
Hwange National Park ◽  
Host Parasite ◽  
Parasite Dynamics

AbstractOxpeckers (Buphagus sp.) are two bird species closely associated to large mammals, including giraffes (Giraffa camelopardalis). We tested whether oxpeckers distributed themselves at random across individuals or aggregated on individual giraffes, and if birds select the host’s body parts with the expected greatest amount of ticks. By counting oxpeckers on giraffe’s body from photographs, we quantified the distribution of birds per hosts and over predefined zones on the giraffe body. Oxpeckers displayed a strong aggregation behaviour with few hosts carrying many birds while many carried a limited number or no birds, a pattern that was most exaggerated for males. Oxpeckers were disproportionately found on the mane and back, where the density of ticks is presumably the highest. This high aggregation level of birds is typical of parasitic species and could suggest that oxpecker distribution may mirror the distribution of ticks, their primary food resource, on giraffes. Abundance of ticks appears as a major driver of the oxpecker foraging behaviour, and the oxpecker–large herbivores system proves to be highly relevant for the study of host–parasite dynamics.

Sign in / Sign up

Export Citation Format

Share Document