Studies on Amerindian dogs, 3: Prehistoric wolf/dog hybrids from the northwestern plains

Discriminant function analysis is an invaluable statistical tool for the taxonomic identification of hybrids between various extant species of Canis in the eastern United States. This technique has recently been applied to the taxonomic identification of canid skulls from several Wyoming archaeological sites. Analysis indicates most canid remains, originally identified as wolf (Canis lupus), to be wolf/dog hybrids exhibiting constant and continual backbreeding to the local wolf populations. The spatial and temporal extent of the form is discussed.     

Neolithic dogs: A reappraisal based on evidence from the remains of a large canid deposited in a ritual feature

A canid skull and mandible, dated to the late neolithic, produced a series of measurements which indicate an animal significantly larger than any dog recovered from this period. The skull showed evidence of healed trauma with associated asymmetry. Metrical and morphological criteria have been applied to identify the remains as those of wolf Canis lupus, and the results of these tests are inconclusive. The possibility that the remains are of a large dog, Canis familiaris, is discussed, together with the implications that this may have for the archaeological consideration of this species.     

Canidae volume bone mineral density values: an application to sites in western Canada

We present volume bone mineral density values from five different canid species: domestic dog (Canis familiaris), wolf (Canis lupus), coyote (Canis latrans), red fox (Vulpes vulpes) and swift fox (Vulpes velox). We use these density values to investigate Canidae remains from four archaeological sites in western Canada and show the importance of explicitly stating assumptions made about the original composition of the deposited faunal assemblage as this influences whether correlations are found between density and percent survivorship (%MAU).     

A taphonomic study of the African wild dog (Lycaon pictus)

Carnivore taphonomy has been traditionally used for the interpretation of archaeological sites in order to discriminate human-generated or modified from non-anthropic bone assemblages. In most of this actualistic research, the focus has mainly been placed on hyenas and felids, neglecting other carnivores. This paper analyzes the taphonomic impact of the African wild dog (Lycaon pictus) on equid bones and compares it with the bone modification patterns produced by other canids, such as wolves (Canis lupus) in order to compare medium-/large-sized canid variability on bone modification patterns and elaborate a referential framework which could be feasibly applied to the zooarchaeological record to detect canid intervention on archaeological assemblages in the past.     

Wild or domesticated? An ancient DNA approach to canid species identification in South Africa's Western Cape Province

The fragmentary remains typical of archaeological fauna can prove impossible to identify when confronted with closely related sympatric species. In southern Africa domesticated dogs (Canis familiaris) and black-backed jackals (Canis mesomelas) pose just such a problem, rendering difficult an accurate assessment of the timing of arrival of domesticated dogs in the region. Contextual evidence has suggested that canid remains from four Later Stone Age archaeological sites were likely to be domesticated dogs rather than jackals, and were subjected to ancient DNA analyses to determine species. Every tested specimen proved to derive from black-backed jackals. These data provide not only an unexpected window on southern African prehistory, but also highlight the value in applying ancient DNA techniques to archaeological species identification.     

Shape Change and Variation in the Cranial Morphology of Wild Canids (Canis lupus,Canis latrans,Canis rufus) Compared to Domestic Dogs (Canis familiaris) Using Geometric Morphometrics

Wild canid populations exhibit different anatomical morphologies compared to domesticated dogs in North America. This is particularly important concerning archaeological sites, which may contain early domesticated species, for the proper identification of osteological remains. Previous studies have indicated domestic dogs exhibit a shorter rostrum accompanied by a crowded tooth row; however, none describe the overall complexity of these changes. Consequently, using a landmark‐based geometric morphometric analysis, cranial morphological characteristics were examined in North American wild canids: the gray wolf (Canis lupus), coyote (Canis latrans), red wolf (Canis rufus), and the domestic dog (Canis familiaris). The shape and size of the cranium in lateral and ventral views were compared between the three wild species to the group of domesticated dogs. Wild canids clustered separately from the domestic group in all statistical analyses. Results indicate an expansion of the orbital region, a compression of the rostrum, and an overall warping in the shape and orientation of the skull. In domestic species, there is also a downward shift in the frontal portion of the skull accompanied by the braincase assuming a more upward position. This technique successfully depicted how slight changes in isolated areas of the cranium can have an impact on the overall shape and morphology of the skull. We presume these changes in cranial anatomy reflect the recent selective pressures domestic dogs have undergone since diverging from their wild ancestors. Copyright © 2012 John Wiley & Sons, Ltd.     

Estimating Body Mass in Dogs and Wolves Using Cranial and Mandibular Dimensions: Application to Siberian Canids

Previously developed regression formulae for estimating body mass in dogs and wolves based on cranial and mandibular dimensions are evaluated using modern canid specimens of known weight at death. Some of these equations proved reliable, but others have large standard errors of estimate and likely produce unreliable mass estimates. New sets of equations for estimating body mass in dogs and wolves are produced using our datasets, including a set of equations developed from combining the dog and wolf biometric data into a single population. The resulting regression equations allow body mass to be estimated from a series of cranial and mandibular dimensions with relatively low errors. Further, our datasets include larger numbers of specimens of larger ranges of body mass than in these previous studies. When the equations are applied to a suite of dogs and one wolf from Eastern Siberia, several patterns emerge. First, hunter–gatherers' dogs in this region vary widely in terms of body size, even within a limited geographic area and time period. Some were quite large, similar in size to modern Siberian huskies. Second, pastoralists' dogs are less variable in terms of body mass, but this may reflect the nature of our samples. In particular, pastoralists' dogs nearly all were sacrificed juvenile dogs, some of which appear to have been eaten. These dogs seem to have been approached adult body size when they were selected for sacrifice. Finally, our findings help to highlight the need for further refinement in methods used to study ancient canid remains. Copyright © 2014 John Wiley & Sons, Ltd.     

Fossil dogs and wolves from Palaeolithic sites in Belgium,the Ukraine and Russia: osteometry,ancient DNA and stable isotopes

Using multivariate techniques, several skulls of fossil large canids from sites in Belgium, Ukraine and Russia were examined to look for possible evidence of the presence of Palaeolithic dogs. Reference groups constituted of prehistoric dogs, and recent wolves and dogs. The fossil large canid from Goyet (Belgium), dated at c. 31,700 BP is clearly different from the recent wolves, resembling most closely the prehistoric dogs. Thus it is identified as a Palaeolithic dog, suggesting that dog domestication had already started during the Aurignacian. The Epigravettian Mezin 5490 (Ukraine) and Mezhirich (Ukraine) skulls are also identified as being Palaeolithic dogs. Selected Belgian specimens were analyzed for mtDNA and stable isotopes. All fossil samples yielded unique DNA sequences, indicating that the ancient Belgian large canids carried a substantial amount of genetic diversity. Furthermore, there is little evidence for phylogeographic structure in the Pleistocene large canids, as they do not form a homogenous genetic group. Although considerable variation occurs in the fossil canid isotope signatures between sites, the Belgian fossil large canids preyed in general on horse and large bovids.     

Canids as persons: Early Neolithic dog and wolf burials, Cis-Baikal, Siberia

Interpretations of dog burials made by ancient foraging groups have tended to be based upon our own relationships with such animals and modern western cosmological and ontological concepts. Osteological studies of early dogs often focus only on issues of taxonomy, and as a result very little is known about these animals’ life histories. Eastern Siberia has produced many Holocene dog burials, but these are typically not well described and the explanatory frameworks provided for them are very underdeveloped. Here we examine in detail two Cis-Baikal canid burials, one of a wolf and the other a dog, both in large Middle Holocene hunter-gatherer cemeteries. We link the mortuary treatment of these animals to other cultural practices, particularly the treatment of the human dead, and broader patterns in Northern human-animal relationships. This interpretive model is combined with detailed osteobiographies for the canids and contextual information for these and other dogs and wolves from Middle Holocene Cis-Baikal. It is argued that canids here were understood and treated in a variety of ways. We suggest that some animals with unique histories were known as distinct persons with ‘souls’ and because of this at death required mortuary rites similar to those of their human counterparts.     

Where are the wolves? Investigating the scarcity of European grey wolf (Canis lupus lupus) remains in medieval archaeological contexts and its implications

The wolf is thought to have been abundant in many parts of medieval Europe, but its remains are rarely identified in archaeological contexts. One of the potential reasons for this is the problem of distinguishing between the skeletal elements of wolves and dogs, accentuated by poor preservation and fragmentation. This paper reviews the extent of this problem, exploring the morphological relationships between wolves and dogs, as well as the issue of hybridisation, and goes on to suggest how the scarcity of wolf remains may in fact reflect infrequent hunting. This is illustrated with a comparative regional case study of wolf hunting and commercial exploitation in medieval England and southern Scandinavia, synthesising archaeological and written sources. The paper concludes with an optimistic appraisal of the value of wolf remains in medieval archaeological contexts for a broader understanding of relations between humans and wolves in the medieval period. Copyright © 2006 John Wiley & Sons, Ltd.     

Body Mass Estimates in Dogs and North American Gray Wolves Using Limb Element Dimensions

Body mass is a key biometric that is useful in interpreting many aspects of an animal's life history. For many species, including dogs and wolves, methods for estimating body mass are not well developed. This paper assesses the utility of using limb dimensions to predict body mass in dogs and North American wolves. Regression analyses are utilized here to explore the correlations between limb dimensions and body masses of modern dogs and wolves, all of known body mass at death. These analyses reveal that a number of limb end dimensions are correlated with body mass in both dogs and wolves. Regression formulae generated through the analyses appear to allow body masses to be predicted with relatively small margins of error, often less than 10%. Formulae are calculated for groups with and without juveniles. In some cases, the dimensions of the juvenile specimens plot distinctly from those of adults, indicating that regression formulae specifically for juvenile canids may be needed. The strength of the limb dimension correlations is then compared with that of regression formulae for dog and wolf cranio‐mandibular dimensions. For the dogs, the cranio‐mandibular dimensions appear to slightly out‐perform the limb element dimensions in predicting body mass. The wolf limb dimensions, however, always appear to provide better predictions of body mass than do the skull dimensions. The newly developed regression formulae are applied to several Middle Holocene dog skeletons from Siberia for which previous body mass estimates are available, the latter based on cranial dimensions. These two sets of estimates are then compared. The overall results of our study indicate the need for further research, particularly with larger sample sizes, including more juvenile specimens. We also argue that work on body size estimation in single dog breeds may be warranted in some cases. Copyright © 2016 John Wiley & Sons, Ltd.     

Ancient DNA supports lineage replacement in European dog gene pool: insight into Neolithic southeast France

We report palaeogenetic analysis of domesticated dog (Canis familiaris) remains excavated from three archaeological sites from southeast France and dating from Middle Neolithic. Ancient DNA analysis was attempted on teeth and bone samples taken from 11 dogs. Three 266-base-pair fragments of the mitochondrial genome Hypervariable Region I (HVR-I) could be retrieved and revealed two haplotypes belonging to HVR-I lineage C. These three sequences were compared to the sequences of Swedish and Italian Neolithic dogs and permitted to confirm that clade C was largely represented all over Western Europe during this period. One haplotype defined in Neolithic French dog was observed for the first time in Canis mtDNA, underlining the loss of mitochondrial diversity in Europe since the Neolithic. Finally, these results point out mitochondrial lineage replacement in Europe, since lineage C represents only 5% of extant European dogs. Altogether, these results support the proposition that palaeogenetic studies are essential for the reconstruction of the past demographic history and the domestication process of dogs.     

Osteometric Variation in Domestic Dogs (Canis familiaris) from the Kodiak Archipelago,Alaska

The research presented here is a re‐examination of domestic dog (Canis familiaris) remains from the Uyak site on Kodiak Island, Alaska. Previous analyses suggest there were two breeds of dog represented in this archaeological assemblage, primarily on the basis of dog cranial size. Here, we use a series of metric and nonmetric traits to test the argument that these ‘breeds’ actually represent a population of male and female dogs. On the basis of the results presented here, we argue the metric and nonmetric data produced by this study suggest that the dogs in this sample are male and female specimens, rather than two distinct breeds. The Uyak assemblage is the largest collection of domestic dog from Kodiak, and these results have the potential to contribute to our understanding of human–dog relationships in the archipelago. Copyright © 2012 John Wiley & Sons, Ltd.     

Characterization of a current coprogenic sample originated by Canis lupus as a tool for identifying a taphonomic agent

We study a skeletal sample digested by Iberian wolf (Canis lupus signatus) in order to finding diagnostic features of digestion caused by this agent. The remains were taken from scats collected in different natural areas in the northwestern Iberian Peninsula. We tested different methods to recover the remains with the goal of not produce biases, and we evaluated the most appropriate methods. The results were compared with those reported by other authors who have also worked with samples digested by wolves. Bias during the procurement of the skeletal assemblages seems to be a significant cause of the differences observed between the samples. We found that it was necessary to fully recover all remains and individually analyze all modifications, even in small-sized remains. Taphonomic characterization was performed by analyzing physical and biochemical modifications. We believe that these results may be useful in the study of archaeological and paleontological assemblages.     

Was the Dog Locally Domesticated in the Danube Gorges? Morphometric Study of Dog Cranial Remains From Four Mesolithic–Early Neolithic Archaeological Sites by Comparison With Contemporary Wolves

In this article, we test a hypothesis about local dog domestication in the Danube Gorges of the central Balkans in the course of the Mesolithic period. Morphometric features of dog mandibles and teeth from Mesolithic–Early Neolithic sites of Vlasac, Padina, Lepenski Vir, and Hajdučka Vodenica have been analysed and compared with recent wolves from the central Balkans. Decrease in size and changes in proportions of dog's dental features were tracked diachronically. We identified specimens which manifested mixed wolf/dog features. Such specimens originate from the Early Mesolithic contexts, the time when a decrease in size began. On the basis of this pattern, we suggest that dog domestication may have taken place in the Danube Gorges during the Early Mesolithic (ca 9500–7500 cal. bc ). The reduction of size continued throughout Late Mesolithic (ca 7500–6300 cal. bc ), but there were still individuals that might be regarded as ‘transitional’ in comparison with wolves on account of their size, and a distinct difference in size between wolves and dogs did not develop. Accordingly, if local domestication was in progress here, the domestication process might have lasted for more than just few generations and even several millennia. Copyright © 2012 John Wiley & Sons, Ltd.     

A double dog burial from San Nicolas Island, California, USA: osteology, context, and significance

Recent archaeological excavations on San Nicolas Island, located off the coast of southern California, revealed the remains of a double dog burial interred sometime during the 13th and 14th centuries. Two carefully laid to rest and possibly sacrificed juvenile, female domestic dogs (Canis familiaris) between the ages of 1 and 6 months were found within a Native American village. Digestive tract residues include burned and unburned fish and marine mammal bone that suggest scavenging behavior or direct feeding by humans. Breed classifications place it between the Short-Nosed Indian dog and the Plains-Indian dog, likely representing a cross between those and other varieties of North American dogs. Comparisons with other dog burials from archaeological sites across southern California suggest commonalities and possible cultural linkages.     

On some remains of dog (Canis familiaris) from the Mesolithic shell-middens of Muge,Portugal

The dog has a unique relationship with humans. This is demonstrated by the number of breeds that exist today and the important role that dogs play in human society. The archaeological record also shows that this relationship began long ago when groups of hunter–gatherers domesticated the wolf probably in several parts of the globe.     

New evidence for Upper Palaeolithic small domestic dogs in South-Western Europe

Osteoarchaeology and genetics agree that the earliest dog domestications took place during the Upper Palaeolithic. However, they partially disagree about the process of domestication. The former indicated multiple origins, when some of the results of the latter suggested that dogs mainly came from a Chinese centre of domestication. In this study, we describe and discuss new evidence for Late Glacial small dogs in the South-West (Pont d’Ambon and Montespan) and North of France (Le Closeau). Special attention was paid to the possibility of miss-identification between small early dogs and dholes (Cuon alpinus), a middle-sized Canidae, the size of which can be similar to early small dogs. Detailed analyses of the archaeological contexts alongside that of taphonomy, morphoscopy, morphometry and pathology, identified 49 small canid remains from the three sites. They allowed us to exclude the presence of dholes and to conclude that they were all small Upper Paleolithic dogs. These, together with other more sparse discoveries, confirmed the presence of Western European Upper Paleolithic Small (WEUPS) dogs from, at least, the Middle Magdalenian to the end of the Epipaleolithic (i.e. 15,000–11,500 cal BP). As they are contemporaneous with the much larger Russian Upper Paleolithic dogs, they plea for several Euro-Asian origins for Late Palaeolithic dogs.     

A Bobcat Burial and Other Reported Intentional Animal Burials from Illinois Hopewell Mounds

Abstract

The Elizabeth site is a bluff-top mortuary mound group constructed and primarily used during Hopewellian (Middle Woodland) times. Recent reanalysis of nonhuman skeletal remains from the site reveals that an intentional burial previously identified as a dog (Canis familiaris) is actually an immature bobcat (Lynx rufus). As a result of this discovery, we reevaluated eight other purported animal burials from Illinois Middle Woodland mounds, including seven dogs and a roseate spoonbill (Platalea ajaja). The dogs all appear to be intrusive or unrelated burial events, but both the bobcat and the roseate spoonbill were definite Hopewellian mortuary interments. The roseate spoonbill was decapitated and placed beside a double human burial. But the bobcat was a separate, human-like interment wearing a necklace of shell beads and effigy bear canine teeth (Figures and ). To our knowledge, this is the only decorated wild cat burial in the archaeological record. It provides compelling evidence for a complex relationship between felids and humans in the prehistoric Americas, including possible taming.     

Disease: A Hitherto Unexplored Constraint on the Spread of Dogs (<Emphasis Type="Italic">Canis lupus familiaris</Emphasis>) in Pre-Columbian South America

Although debate continues, there is agreement that dogs (Canis lupus familiaris) were first domesticated in Eurasia, spreading from there to other parts of the world. However, while that expansion already extended as far as Europe, China, and North America by the early Holocene, dogs spread into (and south of) the tropics only much later. In South America, for example, the earliest well-attested instances of their presence do not reach back much beyond 3000 cal. BC, and dogs were still absent from large parts of the continent—Amazonia, the Gran Chaco, and much of the Southern Cone—at European contact. Previous explanations for these patterns have focused on cultural choice, the unsuitability of dogs for hunting certain kinds of tropical forest prey, and otherwise unspecified environmental hazards, while acknowledging that Neotropical lowland forests witness high rates of canine mortality. Building on previous work in sub-Saharan Africa (Mitchell in Archaeol Res Afr 50:92–135, 2015), and noting that the dog’s closest relatives, the grey wolf (C. lupus) and the coyote (C. latrans), were likewise absent from South and most of Central America in pre-Columbian times, this paper explores instead the possibility that infectious disease constrained the spread of dogs into Neotropical environments. Four diseases are considered, all likely to be native and/or endemic to South America: canine distemper, canine trypanosomiasis, canine rangeliosis, and canine visceral leishmaniasis caused by infection with Leishmania amazonensis and L. colombiensis. The paper concludes by suggesting ways in which the hypothesis that disease constrained the expansion of dogs into South America can be developed further.