Osteoarkeologi Rangka Manusia Situs Leang Kado’4, Maros, Sulawesi Selatan

Pembahasan utama dalam penelitian ini adalah uraian osteoarkeologis terkait temuan rangka manusia situs prasejarah Leang Kado‘ 4 di kawasan karst Simbang, Maros, Sulawesi Selatan. Sebagai bagian dari kajian bioarkeologi, uraian ini meliputi penentuan jenis kelamin, usia kematian, rata-rata tinggi badan, afinitas ras, dan jumlah individu minimal yang ada di Situs Leang Kado‘ 4 sebagai bagian aktivitas penguburan. Metode penelitian menerapkan langkah kerja analisis dalam kajian bioarkeologi yang juga diterapkan dalam disiplin antropologi ragawi. Langkah kerja analisis tersebut, meliputi: identifikasi, pengukuran, komparasi, dan penghitungan estimasi jumlah individu minimal dalam sebuah himpunan data. Penelitian ini berkesimpulan bahwa sisa rangka manusia di situs Leang Kado‘ 4 memiliki kesamaan dengan dua jenis ras manusia, yaitu ras populasi Sahul-Pacific dikenal pula sebagai Australo-Papuan atau Australomelanesoid dan ras populasi Asia atau Mongoloid. Hadirnya data ini diharapkan menjadi salah satu bahan pertimbangan rekomendasi kebijakan berwawasan pembangunan karakter budaya bangsa yang mengedepankan kebhinekaan asal usul dengan data temuan rangka manusia. This research aims to provide an osteoarchaeological analysis of the human skeletons found at the prehistoric site of Leang Kado‘ 4 in Simbang karst area, Maros, South Sulawesi. As a part of bioarchaeological studies, the analysis included the determination of sex, age at death, average height, racial affinity, and the minimum number of individuals at the site as part of the burial activities. The research employed the analytical process that is commonly carried out in bioarchaeological and physical anthropological studies. The analytical process consists of identification, measurement, comparison, and estimation of the minimum number of individuals in a data set. It is concluded that the human skeletal remains at Leang Kado‘ 4 site share several similarities with two human races, i.e. Sahul-Pacific race also known as Australo-Papuan or Australomelanesoid and Asian or Mongoloid race. It is expected that all this data can be used as a base for developing policies oriented to the development of the national character and culture by emphisizing the diversity of the people’s origins, which is supported by data on human skeletal remains.

Prediction of Second Wave of COVID-19 in India using the Modified SEIR Model

Background: The second wave of the coronavirus disease 2019 (COVID-19) epidemic in India was caused by the COVID-19 Delta variant. However, the epidemiological characteristics and transmission mechanism of the Delta variant remain unclear. To explore whether the epidemic trend will change after effective isolation measures were taken and what is the minimum number of individuals who need to be vaccinated to end the epidemic.Methods: We used actual data from March 5 to April 15, 2021, of daily updates confirmed cases and deaths, to estimate the parameters of the model and predict the severity of possible infection in the coming months. The classical Susceptible-Exposed-Infected-Removed (SEIR) model and extended models [Susceptible-Exposed-Infected-Removed-Quarantine (SERIQ) model and Susceptible-Exposed-Infected-Removed- medicine (SERIM) model] were developed to simulate the development of epidemic under the circumstances of without any measures, after effective isolation measures were taken and after being fully vaccinated.Results: The result demonstrated good accuracy of the classic model. The SEIRQ model showed that after isolation measures were taken, the infections will decrease by 99.61% compared to the actual number of infections by April 15. And the SEIRQ model demonstrated that if the vaccine efficative rate was 90%, when the vaccination rate was 100%, the number of existing cases would reach a peak of 529,723 cases on the 52nd day.Conclusion: Effective quarantine measures and COVID-19 vaccination from official are critical prevention measures to help end the COVID-19 pandemic.

Pemanfaatan Fauna Vertebrata dan Kondisi Lingkungan Masa Okupasi 8.000 – 550 BP di Situs Leang Jarie, Maros, Sulawesi Selatan

Utilization Of Vertebrate Fauna And Environmental Conditions Of Occupational Period 8.000 – 550 BP On The Site Of Leang Jarie, Maros, South Sulawesi. Vertebrate Remains from Leang Jarie Site at 8.000-550 BP Occupation in Maros Karst Area, South Sulawesi. The purpose of this study is to provide an overview of vertebrate fauna in Maros Pangkep karstic area, as one of the occupation areas at 8.000 years ago, Specifically, the purpose of this study is to describe of faunal remains found in the 2018-2019 excavation at Leang Jarie Site, Maros, South Sulawesi. This goal is achieved by using the Number of Identified Specimens (NISP) and Minimum Number of Individuals (MNI) calculation methods. The results of the study then showed that the fauna lived alongside human at this site included: fish, lizards, snakes, birds, frogs/toad, small Sulawesi cuscus, microchiroptera, megachiroptera, Sulawesi monkeys, rats, weasel/ferrets, babirussa and sus celebensis, anoa, buffaloes, and dogs. The results of the analysis and identification show that the presence of fauna on the Leang Jarie site is strongly influenced by humans who inhabit this site, this can be seen from the variety of fauna that lives following the changes of humans who inhabit Leang Jarie Sites at 8.000 to 550 BP. This study is one of the references of fauna that have lived and used as a food source or as human life support in this area. Abstrak. Penulisan artikel ini bertujuan untuk memberikan deskripsi tentang fauna vertebrata di kawasan karst Maros Pangkep sebagai salah satu wilayah hunian sejak 8.000 tahun yang lampau, khususnya tentang jenis fauna pada ekskavasi 2018 dan 2019 di Situs Leang Jarie, Maros, Sulawesi Selatan. Penelitian ini menggunakan metode analisis penghitungan number of identified specimens dan penghitungan minimum number of individu. Hasil penelitian menunjukkan bahwa fauna yang hidup berdampingan dengan manusia di situs itu, antara lain ikan, kadal/biawak, ular, burung, katak/kodok, kuskus kecil Sulawesi, kelelawar pemakan serangga, kelelawar pemakan buah, monyet sulawesi, tikus, musang, babi rusa dan babi Sulawesi, anoa, kerbau, dan anjing. Hasil analisis dan identifikasi menunjukkan bahwa keberadaan fauna di Situs Leang Jarie sangat dipengaruhi oleh manusia yang menghuni situs itu. Hal itu terlihat dari variasi fauna yang hidup mengikutiperubahan manusia yang mendiaminya pada 8.000 sampai 550 BP. Penelitian ini merupakan salah satu referensi informasi fauna yang pernah hidup dan dimanfaatkan sebagai sumber bahan makanan atau sisa fauna yang dimanfaatkan sebagai peralatan penunjang hidup manusia di wilayah tersebut.

How a Paleogenomic Approach Can Provide Details on Bioarchaeological Reconstruction: A Case Study from the Globular Amphorae Culture

Ancient human remains have the potential to explain a great deal about the prehistory of humankind. Due to recent technological and bioinformatics advances, their study, at the palaeogenomic level, can provide important information about population dynamics, culture changes, and the lifestyles of our ancestors. In this study, mitochondrial and nuclear genome data obtained from human bone remains associated with the Neolithic Globular Amphorae culture, which were recovered in the Megalithic barrow of Kierzkowo (Poland), were reanalysed to gain insight into the social organisation and use of the archaeological site and to provide information at the individual level. We were able to successfully estimate the minimum number of individuals, sex, kin relationships, and phenotypic traits of the buried individuals, despite the low level of preservation of the bone samples and the intricate taphonomic conditions. In addition, the evaluation of damage patterns allowed us to highlight the presence of “intruders”—that is, of more recent skeletal remains that did not belong to the original burial. Due to its characteristics, the study of the Kierzkowo barrow represented a challenge for the reconstruction of the biological profile of the human community who exploited it and an excellent example of the contribution that ancient genomic analysis can provide to archaeological reconstruction.

Rapid recolonisation of feral cats following intensive culling in a semi-isolated context

Invasive feral cats threaten biodiversity at a global scale. Mitigating feral cat impacts and reducing their populations has therefore become a global conservation priority, especially on islands housing high endemic biodiversity. The New Caledonian archipelago is a biodiversity hotspot showing outstanding terrestrial species richness and endemism. Feral cats prey upon at least 44 of its native vertebrate species, 20 of which are IUCN Red-listed threatened species. To test the feasibility and efficiency of culling, intensive culling was conducted in a peninsula of New Caledonia (25.6 km²) identified as a priority site for feral cat management. Live-trapping over 38 days on a 10.6 km² area extirpated 36 adult cats, an estimated 44% of the population. However, three months after culling, all indicators derived from camera-trapping (e.g., abundance, minimum number of individuals and densities) suggest a return to pre-culling levels. Compensatory immigration appears to explain this unexpectedly rapid population recovery in a semi-isolated context. Since culling success does not guarantee a long-term effect, complementary methods like fencing and innovative automated traps need to be used, in accordance with predation thresholds identified through modelling, to preserve island biodiversity. Testing general assumptions on cat management, this article contributes important insights into a challenging conservation issue for islands and biodiversity hotspots worldwide.

Seasonal denning behavior and population dynamics of the late Pleistocene peccary Platygonus compressus (Artiodactyla: Tayassuidae) from Bat Cave, Missouri

The late Pleistocene faunal assemblage from Bat Cave, central Ozarks, Missouri provides an opportunity to assess specific aspects of behavior, ecology, and ontogeny of the Rancholabrean species Platygonus compressus. All identifiable elements referable to this taxon were catalogued and examined, and a minimum number of individuals of 73 was determined for the sample. Evidence of seasonal behavioral patterns are reported for the first time in a fossil peccary. Maturation of individuals was assessed using the tooth eruption sequence and occlusal wear patterns for all tooth-bearing mandibular elements and isolated lower dentition. Approximate ages were established through comparison with the extant collared peccary. The presence of distinct, developmentally non-overlapping age groups suggests that P. compressus was seasonally present at the Bat Cave locality, with the cave functioning as seasonal shelter in which individuals would occasionally die. The study also suggests the peccaries engaged in synchronous, seasonal breeding behaviors. Demographic assessment of the Bat Cave peccary population suggests that younger individuals formed the bulk of the population at a given time with progressively older individuals becoming scarcer until the age of about 10 years, which matches the typical demographic patterns and life expectancy of extant peccaries.

Metric and non-metric guides for the determination between fore- and hindlimb phalanges of Rangifer tarandus

Phalanges are a great untapped resource in the zooarchaeology of Rangifer tarandus. The utilization of this resource, however, is constrained by a current inability to consistently differentiate fore- from hindlimb phalanges in a mixed assemblage. The ability to separate and identify forelimb and hindlimb phalanx 1 (PI) and phalanx 2 (PII), as well as to recognize and identify other small bones of the hoof, leads to great opportunities for archaeologists. In large scale-analysis, this capacity allows a greater ability to determine minimum number of individuals and assess butchery and transport practices. In the examination of individual life histories of Rangifer tarandus, these designations allow a more precise study of pathology and entheseal change, which can shed light on adaptation, foraging strategy, and human-animal interactions. This study presents qualitative and quantitative methods for the differentiation of PI and PII of the fore- and hindlimbs and describes other bones of the hoof. Metric techniques were developed to differentiate fore- from hindlimb phalanges using non-invasive, non-destructive, and simple methods. The efficacy and accuracy of these methods were assessed using blind testing by students and staff. The average success rates of metric analysis yielded 87% accuracy for determinations of fore- versus hindlimb PI and 92% accuracy for determination of fore- versus hindlimb PII. These results show that this method could benefit researchers working with Rangifer tarandus remains.

Fingerprinting snakes: paleontological and paleoecological implications of zygantral growth rings in Serpentes

We introduce a new non-destructive source of skeletochronological data with applications to species identification, associating disarticulated remains, assessing minimum number of individuals (MNI), and collection management of fossil snakes, but with potential implications for all bony vertebrates, extinct or extant. Study of a diverse sample of Recent henophidian snakes confirms that annual growth cycles (AGCs) visible on the surface of the vertebral zygantrum correspond to lines of arrested growth in osteohistological thin sections and accordingly reflect chronological age. None of the specimens considered here showed signs of remodelling of the zygantrum, suggesting that a complete, unaltered age record is preserved. We tested potential influences on AGCs with a single experimental organism, a maleBogertophis subocularis, that was raised at a controlled temperature and with constant access to mice and water. The conditions in which this individual was maintained, including that it had yet to live through a full reproductive cycle, enabled us to determine that its AGCs reflect only the annual solar cycle, and neither temperature, nor resource availability, nor energy diversion to gametogenesis could explain that it still exhibited lines of arrested growth. Moreover, growth lines in this specimen are deposited toward the end of the growth season in the fall, and not in the winter, during which this individual continued to feed and grow, even though this mid-latitude species would normally be hibernating and not growing. This suggests that growth lines are not caused by hibernation, but reflect the onset of a physiological cycle preparingBogertophis subocularisfor winter rest. That being said, hibernation and reproductive cycle could still influence the amount of time represented by an individual growth line. Growth-line number and AGC spacing-pattern, plus centrum length, are used to estimate MNI of the Early Eocene fossil snakeBoavus occidentaliscollected from the Willwood Formation over two field seasons during the late 19th century. We identified eight or nine individuals among specimens previously parcelled among two specimen lots collected during those expeditions.