Seasonal change in terrestriality of chimpanzees in relation to microclimate in the tropical forest.

abstract：:This paper is one in a series which explores the possibility of using the non-destructive CT technique to identify patterns in tooth enamel distribution and structure of hominid molars from Plio-Pleistocene sites in South Africa, notably Swartkrans, Sterkfontein, and Kromdraai. Whereas previous investigators have emph...

journal_title：American journal of physical anthropology

authors： Macho GA,Thackeray JF

更新日期：1992-10-01 00:00:00

abstract：:The bone mineral content (BMC), bone width, and cross-sectional moment of inertia (CSMI) of 141 Alaskan Eskimo tibias were measured using photon absorptiometry. The effects of age and sex on the bones' structural properties were studied. It was found that in women, BMC decreased by 50% between the third and sixth deca...

journal_title：American journal of physical anthropology

authors： Martin RB,Burr DB,Schaffler MB

更新日期：1985-08-01 00:00:00

abstract：:Multivariate and cluster analyses of human skeletal remains of seven regional groups and nine individual sites and periods reveal different patterns of relationships for the sexes. This complex pattern of morphological affinities probably depends on differential demographic features. ...

journal_title：American journal of physical anthropology

authors： Rathbun TA

更新日期：1982-09-01 00:00:00

abstract：:It has been suggested that bone and dental strontium contents of extinct terrestrial vertebrates vary in direct proportion to the strontium levels present in the animals' diets. It has been hypothesized that these trace quantities decrease as one moves upward along the food chain--herbivores having more strontium than...

journal_title：American journal of physical anthropology

authors： Elias M

更新日期：1980-07-01 00:00:00

abstract：OBJECTIVES:The use of dental metrics in phylogenetic reconstructions of fossil primates assumes variation in tooth size is highly heritable. Quantitative genetic studies in humans and baboons have estimated high heritabilities for dental traits, providing a preliminary view of the variability of dental trait heritabili...

journal_title：American journal of physical anthropology

authors： Hardin AM

更新日期：2019-02-01 00:00:00

abstract：:The Spearman-Brown Prophesy formula, derived from psychometrics, may be used in anthropometric studies to describe the relationship between the intraclass reliability coefficient for a single measurement and the reliability resulting from the mean of replicate measurements. This theory may be applied to determine expe...

journal_title：American journal of physical anthropology

authors： Himes JH

更新日期：1989-05-01 00:00:00

abstract：:At least 29 species of fossil primates have been referred to fruit, nectar, and/or exudate feeding dietary niches. Many studies have detailed the morphological correlates of fruit feeding in comparison to insectivory and folivory. In contrast, few studies have sought to differentiate the morphological correlates of fr...

journal_title：American journal of physical anthropology

authors： Dumont ER

更新日期：1997-02-01 00:00:00

abstract：:Inferred dietary preference is a major component of paleoecologies of extinct primates. Molar occlusal shape correlates with diet in living mammals, so teeth are a potentially useful structure from which to reconstruct diet in extinct taxa. We assess the efficacy of Dirichlet normal energy (DNE) calculated for molar t...

journal_title：American journal of physical anthropology

authors： Bunn JM,Boyer DM,Lipman Y,St Clair EM,Jernvall J,Daubechies I

更新日期：2011-06-01 00:00:00

abstract：:A group of Taiwan aborigines, the Toroko, was typed for 21 classical genetic loci. This is part of an ongoing program aimed at a comprehensive study of Taiwan aborigines. In this first paper a short summary of historical, archeological, and anthropological data in the literature is made, and results of the present sur...

journal_title：American journal of physical anthropology

authors： Chen KH,Cann H,Chen TC,Van West B,Cavalli-Sforza L

更新日期：1985-03-01 00:00:00

abstract：:The numbers of precoccygeal vertebrae (PCV) are compared in Southern African Negroes, Bushman (San) and American Negroes. The S.A. Negro and San males have an exceptionally high frequency of an increased total PCV number whilst the frequencies are significantly lower in a combined Caucasoid sample and the Mongoloid sa...

journal_title：American journal of physical anthropology

authors： de Beer Kaufman P

更新日期：1977-11-01 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：:In this paper we discuss diet and health changes of millet agriculturists in Northern China, Shaanxi province, during the period 7,000-4,000 BP. An episode of intensive climatic oscillations that preceded the onset of colder climate circa the fifth millennium BP divides the period (Shi et al. [1993] Global Planet. Cha...

journal_title：American journal of physical anthropology

authors： Pechenkina EA,Benfer RA Jr,Zhijun W

更新日期：2002-01-01 00:00:00

abstract：:Many studies of primate diversity and evolution rely on dental morphology for insight into diet, behavior, and phylogenetic relationships. Consequently, variation in molar cusp size has increasingly become a phenotype of interest. In 2007 we published a quantitative genetic analysis of mandibular molar cusp size varia...

journal_title：American journal of physical anthropology

authors： Koh C,Bates E,Broughton E,Do NT,Fletcher Z,Mahaney MC,Hlusko LJ

更新日期：2010-06-01 00:00:00

abstract：:Patterns of degenerative joint disease are investigated in the shoulder, elbow, hip, and knee joints of the macerated remains of approximately 800 individuals from 20th century American and two prehistoric populations. Age is an important contributory factor in all joints, but its effects are seen most directly in the...

journal_title：American journal of physical anthropology

authors： Jurmain RD

更新日期：1980-07-01 00:00:00

abstract：:Total testosterone and dihydrotestosterone in blood serum as well as free testosterone in saliva were determined by radioimmunoassay in 110 healthy young men. The results were compared with the development of terminal hair on the trunk and limbs, with the disposition to balding and with the disposition to acne. No sig...

journal_title：American journal of physical anthropology

authors： Knussmann R,Christiansen K,Kannmacher J

更新日期：1992-05-01 00:00:00

abstract：:Sexual dimorphism in primate species expresses the effects of phylogeny, life history, behavior, and ontogeny. The causes and implications of sexual dimorphism have been studied in several different primates using a variety of morphological databases such as body weight, canine length, and coat color and ornamentation...

journal_title：American journal of physical anthropology

authors： Masterson TJ,Hartwig WC

更新日期：1998-11-01 00:00:00

abstract：:Mesiodistal and buccolingual crown diameters were measured from dental casts representing the deciduous dentitions of 197 Aboriginal children from the Northern Territory of Australia. Double determination analysis indicated that the semi-automatic recording procedure used was reliable leading to observer errors of no ...

journal_title：American journal of physical anthropology

authors： Margetts B,Brown T

更新日期：1978-05-01 00:00:00

abstract：:In this paper we examine the effects of ethnicity on the gene flow between two groups living in Limón, Costa Rica. Our main interest is to determine if ethnicity has acted as a barrier to the exchange of genes, and if the groups have remained distinct genetically. We report the admixture estimates, F(st) values, and i...

journal_title：American journal of physical anthropology

authors： Madrigal L,Ware B,Miller R,Saenz G,Chavez M,Dykes D

更新日期：2001-02-01 00:00:00

abstract：OBJECTIVES:Modern humans diverge from other extant hominids (chimpanzees, gorillas, and orangutans) in a series of craniofacial morphological features. Like hylobatids, they possess a face with a reduced subnasal prognathism that is associated with a globular basicranium. These traits are not independent, as the skull ...

journal_title：American journal of physical anthropology

authors： Neaux D

更新日期：2017-04-01 00:00:00

abstract：:Two sequences of nucleotides are homologous if they are descended through a chain of replication from a common precursor molecule. Since organs are not copies or transcriptions of organs, the concept of morphological homology has no such simple and unambiguous definition. The theoretical vagueness of morphological hom...

journal_title：American journal of physical anthropology

authors： Cartmill M

更新日期：1994-05-01 00:00:00

abstract：:Attention is called to a disputed diagnosis of trephination reported for a perforated skull of a prehistoric New England Indian. The perforation, surrounded by a saucer-like depression, is located exactly in the midline just in front of bregma. The finding of a similar lesion in a prehistoric Indian skull from the Nor...

journal_title：American journal of physical anthropology

authors： Stewart TD

更新日期：1975-05-01 00:00:00

abstract：OBJECTIVES:Here we describe the case of an ectopic maxillary third molar (M3 ), preventing the eruption of the M2 , in the individual H3 of the hominin hypodigm of level TD6.2 of the Early Pleistocene site of Gran Dolina (Sierra de Atapuerca, Spain). MATERIALS AND METHODS:The fossil remains from the TD6.2 level of the...

journal_title：American journal of physical anthropology

authors： Martín-Francés L,Martinón-Torres M,Martínez de Pinillos M,Bayle P,Fernández-Colón P,García-Campos C,Modesto-Mata M,Carbonell E,Arsuaga JL,Bermúdez de Castro JM

更新日期：2020-04-01 00:00:00

abstract：:This article presents the results of a study of infant diet at two Iron Age sites on the island of Öland, Sweden. The cemetery at Bjärby contained a large number of subadults who had survived the earliest years of life, whereas most individuals at Triberga had died by 6 months of age. To investigate whether difference...

journal_title：American journal of physical anthropology

authors： Howcroft R,Eriksson G,Lidén K

更新日期：2012-10-01 00:00:00

abstract：OBJECTIVES:To describe the physical growth of healthy children under 7 years in China based on the latest national survey and provide more data for revising growth reference and monitoring the impact of social development on children's health and growth. METHODS:In the cross-sectional survey, 161,774 healthy children ...

journal_title：American journal of physical anthropology

authors： Zhang YQ,Li H,Wu HH,Zong XN,Zhu ZH,Pan Y,Li J,Zheng XR,Wei M,Tong ML,Zhou AF,Hu Y,Chen W,Zhu K,Yu Y

更新日期：2017-07-01 00:00:00

abstract：OBJECTIVES:The human respiratory apparatus is characterized by sexual dimorphism, the cranial airways of males being larger (both absolutely and relatively) than those of females. These differences have been linked to sex-specific differences in body composition, bioenergetics, and respiratory function. However, whethe...

journal_title：American journal of physical anthropology

authors： García-Martínez D,Torres-Tamayo N,Torres-Sanchez I,García-Río F,Bastir M

更新日期：2016-11-01 00:00:00

abstract：:Recently spatial autocorrelation has been employed to infer microevolutionary processes from patterns of genetic variation. In theory, different processes should show characteristic signature correlograms; e.g., clinal selection should produce correlograms decreasing from positive to negative autocorrelation, whereas ...

journal_title：American journal of physical anthropology

authors： Fix AG

更新日期：1994-12-01 00:00:00

abstract：:Root dentine transparency (RDT) was used to estimate the ages of human subjects from 152 intact teeth. Teeth were from 134 subjects, both historical and recent, of known age and sex. The aims of this work are 1) to compare two methods of using RDT to estimate age; 2) to test the applicability of the regression formula...

journal_title：American journal of physical anthropology

authors： Drusini A,Calliari I,Volpe A

更新日期：1991-05-01 00:00:00

abstract：OBJECTIVES:The Early Neolithic involved an important social and economic shift that can be tested not only with the material culture, but also through biomolecular approaches. The Iberian Peninsula presents few Early Neolithic sites where fauna and humans can be analyzed together from an isotopic perspective. Here we p...

journal_title：American journal of physical anthropology

authors： Villalba-Mouco V,Utrilla P,Laborda R,Lorenzo JI,Martínez-Labarga C,Salazar-García DC

更新日期：2018-10-01 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

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