Dietary Stress and Animal Resource Use at the Postclassic Maya city, Mayapan (Mexico)

Environmental changes resulting in drought and reductions in the availability of animal resources during the Late Classic Maya have been linked with the Maya 'collapse'. Decreases in availability of dietary staples such as artiodactyls, and particularly white-tailed deer, during the Late Classic period would have placed food stress on populations during later periods. To test this hypothesis, here bone breakage patterns are examined at the Postclassic Maya city, Mayapn, to assess whether artiodactyl bones were being intensively processed for bone fats (marrow and grease). Fragmentation morphology, size and surface markings, along with skeletal part representation and distribution of large mammal bones were recorded for bone assemblages from several houselots. Evidence suggests the Maya were likely utilising bone marrow from artiodactyls but not intensively and they were not extracting bone grease. These results indicate that decreased accessibility to artiodactyls during the Postclassic was not causing high levels of dietary stress for the Maya at Mayapn, which is consistent with recent evidence demonstrating dietary consistency during the Postclassic in northern Yucatan

Can metric data be an effective tool for galliform skull identification in archaeological contexts?

Galliforms, or game birds, are commonly found in zooarchaeological assemblages but several taxa within the order (e.g. chicken, pheasant and grouse) are difficult to distinguish from one another morphologically. Osteometrics is a tool for understanding skeletal variation in animal populations that has been shown to be useful in distinguishing between closely related genera in galliform post-cranial elements. In this paper, we test whether metrics are also effective in identifying galliform skulls (crania and mandibles) to the genus level. Using osteometric data collected from nine North American gallinaceous genera, we found that size was the greatest source of variation within the order. Several dimensions (greatest height, smallest breadth between orbits and length of incisivum) on the cranium were successful in distinguishing Domestic chicken (Gallus gallus domesticus) from Ring-necked pheasant (Phasianus colchicus), while measurements on the mandible were not very effective in separating closely related taxa. The application of osteometrics to fragmentary bird skulls from an historic era site assemblage in New York was not effective in identifying birds beyond general size-classes even with the aid of morphology and comparative collections. This suggests that previous work identifying fragmentary skull remains to the species level is not accurate, and that more advanced methods need to be developed to identify morphological and metric variation between taxa in these fragmentary elements

A reevaluation of bird taxonomic identifications at Contact‐ and historic‐era North American sites

Domestic chickens (Gallus domesticus) and turkeys (Meleagris gallopavo) are identified more frequently than other bird species in bone assemblages from historic sites in North America. Recent studies on the effectiveness of metric data for identification of galliform bones found high degrees of similarity in size and morphology between wild game birds (e.g., grouse and ptarmigan) and multiple domestic or introduced species (e.g., chicken and pheasant). This finding suggests that wild taxa and less common domesticates may have been misidentified as chicken and as a result are underrepresented in these historic datasets. In this paper, we evaluate the precision of bird taxonomic identifications from five Contact‐ and historic‐era sites in New York State, comparing the initial taxon designations recorded in site reports with our new identifications derived from a combination of comparative morphological and osteometric analyses. After our analysis of the assemblages, game bird diversity at most of the sites expanded, as did the prevalence of other orders (e.g., Anseriformes and Strigiformes). The updated identifications highlight the diversity of birds used in historic contexts and the importance of combining multiple analytical methods to increase accuracy

Testing the effectiveness of osteometrics in the identification of North American gallinaceous bird post-cranial elements

Galliformes, or game birds, are an order of birds commonly utilized by people and are regularly found in zooarchaeological assemblages. Morphological and size similarities make many galliforms difficult to distinguish from each other, thereby prohibiting specific identification of these taxa. Non-identified bones lead to a decrease in information available about archaeological sites, particularly for bird species which provide a wealth of information about the economy and environment of historic and prehistoric sites. In this paper, we test the effectiveness of osteometrics in nine North American gallinaceous species to assess their utility for identifying post-cranial skeletal elements to genus or species. Statistical analysis of measurements successfully separated several Phasianidae subfamilies and identified the largest (turkey) and smallest (quail) species. Measurements driving variation between taxa were primarily long bone length and epiphyseal breadth. Few elements showed statistically significant differences within Tetraoninae and Phasianinae clades. We suggest that zooarchaeologists adopt long bone metrics as a standard, complementary technique to traditional morphological identifications for unknown galliforms

Birds in burials: The role of avifauna in Eneolithic Tripolye mortuary rituals

Bird remains are rare at Tripolye sites; therefore, researchers hypothesize that they were not an important economic resource for the Tripolye. The use of ornithographic iconography, vessels, and figurines suggests avifauna were important symbolically in Tripolye ideology. Here, we investigate the role of birds in a Tripolye burial context to assess their symbolic and/or economic significance in mortuary behaviours. We analysed bird remains from the Verteba Cave cemetery, located in western Ukraine and occupied by the Tripolye during phase BII through CII. Bird remains (n=178) comprise approximately 2% of the faunal sample excavated among human burials from the cave. In contrast to species represented symbolically in Tripolye art, water and marsh birds are majorly underrepresented. The bird assemblage is dominated by grouse ('Tetrao spp.'), and common quail ('Cortunix cortunix'), but also includes birds of prey, corvids, and many songbirds. The large number of gamebirds leads us to conclude that the avifauna from Verteba Cave are likely the remains from funeral feasts or food grave offerings. It also supports the idea that birds were a seasonal and local economic resource. The presence of birds of prey, corvids, and male black grouse also suggests that feathers may have been a desired resource