Effects of predation risk on the grouping patterns of white-bellied spider monkeys (Ateles belzebuth belzebuth) in Western Amazonia.

abstract：:Socioeconomic variation in estimated growth velocities (annual growth increments) of several anthropometric dimensions was considered in schoolchildren from a rural, subsistence agricultural community in the Valley of Oaxaca in southern Mexico. The children (114 males, 99 females), 6-13 years of age, were measured twi...

journal_title：American journal of physical anthropology

authors： Little BB,Buschang PH,Malina RM

更新日期：1988-08-01 00:00:00

abstract：:The methods used to study human growth and development (auxology) have not previously been applied within the setting of hominin maturation (ontogeny). Ontogeny is defined here as the pattern of biological change into an adult form, both at the individual and species level. The hominin fossil record has a lack of reco...

journal_title：American journal of physical anthropology

authors： Bolter DR,Cameron N

更新日期：2020-10-01 00:00:00

abstract：:Considerable attention has been devoted to variation in levels of energy expenditure between and within populations; these are commonly evaluated following international guidelines for grading light, moderate, and heavy physical activity levels (PAL). This study presents activity profiles by season and sex for subsist...

journal_title：American journal of physical anthropology

authors： Panter-Brick C

更新日期：1996-05-01 00:00:00

abstract：:This paper reports measurements of weight and recumbent length for a cross-sectional sample of 149 Shipibo infants and children between birth and 35.99 months of age from eight villages in the Peruvian Amazon Basin. The Shipibo are an Amerindian population experiencing a period of local environmental disruption and ra...

journal_title：American journal of physical anthropology

authors： Hodge LG,Dufour DL

更新日期：1991-01-01 00:00:00

abstract：:The new optical device Lipometer allows noninvasive, quick, and safe determination of the thickness of subcutaneous adipose tissue (SAT) layers (in mm) at any site of the human body. The specification of 15 evenly distributed body sites enables the precise measurement of subcutaneous body fat distribution, so-called s...

journal_title：American journal of physical anthropology

authors： Tafeit E,Möller R,Sudi K,Horejsi R,Berg A,Reibnegger G

更新日期：2001-05-01 00:00:00

abstract：:The techniques of dental histology provide a method for reconstructing much of the life history of an individual, as accentuated increments visible in polarized light microscopy record incidents of physiological stress during the formation of dental tissues. Combined with counts of the normal periodic growth increment...

journal_title：American journal of physical anthropology

authors： Dirks W,Reid DJ,Jolly CJ,Phillips-Conroy JE,Brett FL

更新日期：2002-07-01 00:00:00

abstract：:Intrapopulational tooth striation variability has been studied in a sample of 99 individuals from the medieval agricultural population of La Olmeda (Palencia, Spain). The number, length, and orientation of all observed striations were recorded using a scanning electron microscope and an image analyzer system. Tooth st...

journal_title：American journal of physical anthropology

authors： Pérez-Pérez A,Lalueza C,Turbón D

更新日期：1994-06-01 00:00:00

abstract：:Understanding the mechanical features of cortical bone and their changes with growth and adaptation to function plays an important role in our ability to interpret the morphology and evolution of craniofacial skeletons. We assessed the elastic properties of cortical bone of juvenile and adult baboon mandibles using ul...

journal_title：American journal of physical anthropology

authors： Wang Q,Ashley DW,Dechow PC

更新日期：2010-04-01 00:00:00

abstract：OBJECTIVES:A "dip" in the stable nitrogen isotope ratios (δ(15)N) of subadults in the late weaning/early post-weaning phase of growth and development has been observed. Speculatively, this is the mechanism of positive nitrogen balance operating among rapidly growing subadults. An alternate hypothesis for δ(15)N dips is...

journal_title：American journal of physical anthropology

authors： Reitsema LJ,Muir AB

更新日期：2015-06-01 00:00:00

abstract：:Bone remodeling variables in the rib were analyzed for a skeletal population of medieval antiquity (ca. A.D. 550-1450) from Kulubnarti, in Sudanese Nubia. The skeletal remains are naturally mummified and in an excellent state of preservation. The study sample consists of thin sections from the ribs of 80 individuals, ...

journal_title：American journal of physical anthropology

authors： Mulhern DM

更新日期：2000-04-01 00:00:00

abstract：OBJECTIVES:The Fueguians are descendants of the first settlers of America, a 'relict' isolated geographically for 10,000 years. We compared their cranial variation with other Americans, and samples from Asia and Australia to know whether the modern extinct Fueguians can be considered Paleoamericans or not. MATERIALS A...

journal_title：American journal of physical anthropology

authors： Turbon D,Arenas C,Cuadras CM

更新日期：2017-06-01 00:00:00

abstract：OBJECTIVES:Although the evolution of the hominin masticatory apparatus has been linked to diet and food processing, the physical connection between neurocranium and lower jaw suggests a role of encephalization in the trend of dental and mandibular reduction. Here, the hypothesis that tooth size and mandibular robustici...

journal_title：American journal of physical anthropology

authors： Veneziano A,Meloro C,Irish JD,Stringer C,Profico A,De Groote I

更新日期：2018-09-01 00:00:00

abstract：:Mobility and migration patterns of groups and individuals have long been a topic of interest to archaeologists, used for broad explanatory models of cultural change as well as illustrations of historical particularism. The 14th century AD was a tumultuous period of history in Britain, with severely erratic weather pat...

journal_title：American journal of physical anthropology

authors： Kendall EJ,Montgomery J,Evans JA,Stantis C,Mueller V

更新日期：2013-02-01 00:00:00

abstract：:An extensive (n = 739) sample of well-documented male pubic bones was examined for age-related features. Using the traditional aging methods, Todd's system was found to over-age and both the Todd and the McKern-Stewart systems did not account for age variability seen in advanced pubic bone patterns. Based on a 5-year ...

journal_title：American journal of physical anthropology

authors： Katz D,Suchey JM

更新日期：1986-04-01 00:00:00

abstract：:Artificial reshaping of the cranial vault has been practiced by many human groups and provides a natural experiment in which the relationships of neurocranial, cranial base, and facial growth can be investigated. We test the hypothesis that fronto-occipital artificial reshaping of the neurocranial vault results in spe...

journal_title：American journal of physical anthropology

authors： Cheverud JM,Kohn LA,Konigsberg LW,Leigh SR

更新日期：1992-07-01 00:00:00

abstract：:The Castel di Guido site, with an estimated age of approximately 300,000 years, has yielded abundant animal remains, Acheulian stone and bone bifaces, and small tools. On the surface of the original deposit, turned over by agricultural activities, fragments of human remains were discovered between 1980 and 1986, inclu...

journal_title：American journal of physical anthropology

authors： Mallegni F,Radmilli AM

更新日期：1988-06-01 00:00:00

abstract：:The scarcity of information on control data of toe and plantar dermatoglyphics led us to undertake this study of adult American Caucasians. Toe and sole prints of 168 male and 83 female participants of the Baltimore Longitudinal Study of Aging were analyzed. Toe pattern frequencies demonstrate that fibular loops are t...

journal_title：American journal of physical anthropology

authors： Fox KM,Plato CC

更新日期：1987-09-01 00:00:00

abstract：:The Philippines is generally believed to have been established by various peoples who migrated from neighboring areas. To gain new insights into the peopling of the Philippines, we used the JC virus (JCV) genotyping approach. We collected about 50 urine samples on each of two representative islands of the Philippines,...

journal_title：American journal of physical anthropology

authors： Miranda JJ,Sugimoto C,Paraguison R,Takasaka T,Zheng HY,Yogo Y

更新日期：2003-02-01 00:00:00

abstract：:Recent analyses of mitochondrial genomes from Native Americans have brought the overall number of recognized maternal founding lineages from just four to a current count of 15. However, because of their relative low frequency, almost nothing is known for some of these lineages. This leaves a considerable void in under...

journal_title：American journal of physical anthropology

authors： Hooshiar Kashani B,Perego UA,Olivieri A,Angerhofer N,Gandini F,Carossa V,Lancioni H,Semino O,Woodward SR,Achilli A,Torroni A

更新日期：2012-01-01 00:00:00

abstract：:We documented the spacing and distribution of perikymata on the buccal enamel surface of fossil hominin anterior teeth with reference to a sample of modern human and modern great ape teeth. A sample of 27 anterior teeth attributed to Australopithecus (5 to A. afarensis, 22 to A. africanus) and of 33 attributed to Para...

journal_title：American journal of physical anthropology

authors： Dean MC,Reid DJ

更新日期：2001-11-01 00:00:00

abstract：:Bone samples from a Middle Bronze Age (ca., 1600-1300 BC) site were prepared for histological analysis. Preliminary results suggested that components of bone marrow remained preserved. To verify these findings and optimize the sample preparation procedure, we conducted experiments varying the type of acid used to deca...

journal_title：American journal of physical anthropology

authors： Setzer TJ,Sundell IB,Dibbley SK,Les C

更新日期：2013-12-01 00:00:00

abstract：:International differences in breast cancer incidence and mortality, and studies on Japanese migrants to the United States, point to the importance of environmental factors, including diet and nutrition, in the etiology of breast cancer. Some studies have suggested that dietary patterns in early life are important to t...

journal_title：American journal of physical anthropology

authors： Micozzi MS

更新日期：1987-08-01 00:00:00

abstract：:The condyles of 72 aged and sexed Haida Indians were measured for anteroposterior and mediolateral diameter and their approximate areas calculated. Dental wear was assessed for the same individuals. Asymmetry of condyle size did not appear to change with age. In a pair-wise analysis, no relationship was found between ...

journal_title：American journal of physical anthropology

authors： Costa RL Jr

更新日期：1986-05-01 00:00:00

abstract：:On the basis of new examination of ancient DNA and craniometric analyses, Neolithic dispersal in Central Europe has been recently explained as reflecting colonization or at least a major influx of near eastern farmers. Given the fact that Neolithic dispersal in Central Europe was very rapid and extended into a large a...

journal_title：American journal of physical anthropology

authors： Galeta P,Sládek V,Sosna D,Bruzek J

更新日期：2011-09-01 00:00:00

abstract：:Fourteen morphologic crown traits were observed in a sample of 1528 Pima Indians of south-central Arizona. Pima dentitions are characterized by high frequencies of shoveling, incisor winging, the hypocone, the lower canine distal accessory ridge, cusp 6, and the protostylid. They exhibit low frequencies of the metacon...

journal_title：American journal of physical anthropology

authors： Scott GR,Potter RH,Noss JF,Dahlberg AA,Dahlberg T

更新日期：1983-05-01 00:00:00

abstract：OBJECTIVES:Human walking involves out-of-phase axial rotations of the thorax and pelvis. It has long been believed that this rotational capability is a distinctive feature of the genus Homo. However, Thompson et al. (2015) showed that chimpanzees also counter-rotate their thorax relative to the pelvis during bipedal wa...

journal_title：American journal of physical anthropology

authors： Kinoshita Y,Goto R,Nakano Y,Hirasaki E

更新日期：2021-01-01 00:00:00

abstract：:A suite of measurements was collected from the talus, calcaneus, navicular, and cuboid of humans from Southern China, Victorian Britain, Roman Britain, and Zulu tribes people from the Republic of South Africa. Univariate and multivariate statistical analyses of dimensions of individual foot bones revealed subtle but d...

journal_title：American journal of physical anthropology

authors： Kidd RS,Oxnard CE

更新日期：2002-02-01 00:00:00

abstract：:Human physique classification by somatotype assumes that adult humans are geometric similar to each other. However, this assumption has yet to be adequately tested in athletic and nonexercising human populations. In this study, we assessed this assumption by comparing the mass exponents associated with girth measureme...

journal_title：American journal of physical anthropology

authors： Nevill AM,Stewart AD,Olds T,Holder R

更新日期：2004-06-01 00:00:00

abstract：:Previous works on the inheritance of dental traits have traditionally followed Fisher's model for family data under the assumption that phenotypic similarity between relatives is due solely to genetic factors. This study uses recent causal models that incorporate the contribution of nonrandom environmental sources of ...

journal_title：American journal of physical anthropology

authors： Potter RH,Rice JP,Dahlberg AA,Dahlberg T

更新日期：1983-07-01 00:00:00

abstract：:The growth of the maxillary complex of 36 rhesus monkeys (Macaca mulatta) was analyzed quantitatively and qualitatively during four defined stages of postnatal development (i.e., infant, juvenile, adolescent, young adult). At each stage, growth was observed during a 24 week period. Since some animals were observed dur...

journal_title：American journal of physical anthropology

authors： McNamara JA Jr,Riolo ML,Enlow DH

更新日期：1976-01-01 00:00:00