Development of ecological competence in Sumatran orangutans.

abstract：:The traditional morphogenetic fields of the human dentition were evaluated by means of factor analysis of dental dimensions taken from a series of human crania. When crown length, crown width and crown index were considered separately, factors emerged which could be identified with the tooth group fields. But a combin...

journal_title：American journal of physical anthropology

authors： Lombardi AV

更新日期：1975-01-01 00:00:00

abstract：:The reproductive histories of women aged 45-70 years from a homogeneous Berber population of South Morocco were sampled from three contrasting environments: a small town (n = 75), villages in the lowlands (n = 217), and villages in the highlands (n = 128). The main reproductive variables oppose the relatively better c...

journal_title：American journal of physical anthropology

authors： Crognier E

更新日期：1996-06-01 00:00:00

abstract：:Tolerant food sharing among human foragers can largely be explained by reciprocity. In contrast, food sharing among chimpanzees and bonobos may not always reflect reciprocity, which could be explained by different dominance styles: in egalitarian societies reciprocity is expressed freely, while in more despotic groups...

journal_title：American journal of physical anthropology

authors： Jaeggi AV,Stevens JM,Van Schaik CP

更新日期：2010-09-01 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：OBJECTIVES:The appearance of external auditory exostoses archaeologically has been attributed to aquatic activities in middle latitudes. However, recent clinical research implicates low sea surface temperatures, especially below a threshold of 19°C, as a stronger predictor of ear exostosis development than latitude. He...

journal_title：American journal of physical anthropology

authors： Smith-Guzmán NE,Cooke RG

更新日期：2019-03-01 00:00:00

abstract：OBJECTIVES:One-male social systems are usually characterized by polygyny and reproductive exclusion by a single resident male. Sometimes, however, secondary males join these groups, and this may carry fitness costs and/or benefits to the resident male. In hamadryas baboons (Papio hamadryas hamadryas), which live in one...

journal_title：American journal of physical anthropology

authors： Chowdhury S,Pines M,Saunders J,Swedell L

更新日期：2015-11-01 00:00:00

abstract：:It has been suggested that primates utilize a compliant gait to help reduce peak locomotor stresses on their limbs (Schmitt [1994] J. Hum. Evol. 26:441-458; Schmitt [ 1998] Primate Locomotion, p. 175-200; Schmitt [ 1999] J. Zool. Lond. 248:149-160). However, the components of such a gait, i.e., increased step length, ...

journal_title：American journal of physical anthropology

authors： Larney E,Larson SG

更新日期：2004-09-01 00:00:00

abstract：:The histological method developed by Stout and Paine ([1992] Aln. J. Phys. Antropol. 87:111-115) for estimating age at death using the clavicle is tested on a known age independent sample from a nineteenth century cemetery near Spitalfriedhof St. Johann in Basel, Switzerland. The mean absolute difference between repor...

journal_title：American journal of physical anthropology

authors： Stout SD,Porro MA,Perotti B

更新日期：1996-05-01 00:00:00

abstract：:Variation in recent human mandibular form is often thought to reflect differences in masticatory behavior associated with variation in food preparation and subsistence strategies. Nevertheless, while mandibular variation in some human comparisons appear to reflect differences in functional loading, other comparisons i...

journal_title：American journal of physical anthropology

authors： Holton NE,Franciscus RG,Ravosa MJ,Southard TE

更新日期：2014-03-01 00:00:00

abstract：:Recent studies have demonstrated the potential application of computed tomography (CT) in research into bone density. Clinical studies of bone density using CT commonly employ a dipotassium phosphate phantom to calibrate measurements of mineral density. Designed for in vivo studies, the use of this phantom requires th...

journal_title：American journal of physical anthropology

authors： Chen X,Lam YM

更新日期：1997-08-01 00:00:00

abstract：:We examine the demographic correlates of paternity confidence, or men's assessment of the likelihood that they are the genetic father of a particular child. Evolutionary theory predicts that men will provide less parental investment for putative genetic offspring who are unlikely to be their actual offspring, but conf...

journal_title：American journal of physical anthropology

authors： Anderson KG,Kaplan H,Lancaster JB

更新日期：2006-12-01 00:00:00

abstract：:The Byzantine Empire managed a complex administrative network that controlled the mining and processing of natural resources from within its boundaries. Scholars relying upon archeological and textual evidence debate the level of imperial involvement in these ventures, particularly in the provinces. Ancient sources no...

journal_title：American journal of physical anthropology

authors： Perry MA,Coleman DS,Dettman DL,al-Shiyab AH

更新日期：2009-11-01 00:00:00

abstract：OBJECTIVES:Among the diagnostic features of the Neandertal mandible are the broad base of the coronoid process and its straight posterior margin. The adaptive value of these (and other) anatomical features has been linked to the Neandertal's need to cope with a large gape. The present study aims to test this hypothesis...

journal_title：American journal of physical anthropology

authors： Marom A,Rak Y

更新日期：2018-06-01 00:00:00

abstract：:A large collection of identified human skeletons curated at the Bocage Museum (National Museum of Natural History, Lisbon, Portugal) has remained in relative anonymity since its collecting protocol was initiated in the 1980s. This collection originates from modern cemetery sources and is comprised of 1,692 skeletons w...

journal_title：American journal of physical anthropology

authors： Cardoso HF

更新日期：2006-02-01 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：:Interpretations of skeletal anatomy claiming to show that Neandertals could not have had a similar supralaryngeal vocal apparatus to that of humans are demonstrated to be flawed. Correction of the errors suggests that the Neandertal vocal apparatus need not have differed from that of recent humans. ...

journal_title：American journal of physical anthropology

authors： Houghton P

更新日期：1993-02-01 00:00:00

abstract：:Recent molecular and morphological surveys suggest that mangabeys do not represent a monophyletic group. Specifically, Cercocebus is the sister taxon of Mandrillus, whereas Lophocebus forms an unresolved trichotomy with Papio and Theropithecus. The Cercocebus-Mandrillus clade is characterized by skeletal and dental ad...

journal_title：American journal of physical anthropology

authors： Daegling DJ,McGraw WS

更新日期：2007-09-01 00:00:00

abstract：:Members of the Cercocebus-Mandrillus clade are united by several morphological features, including expanded premolars which are argued to be associated with a preponderance of hard objects in the diet. We test the association between premolar expansion and hard object feeding by examining how different dental regions ...

journal_title：American journal of physical anthropology

authors： McGraw WS,Vick AE,Daegling DJ

更新日期：2011-01-01 00:00:00

abstract：:The dental casts taken of Aboriginal people resident at Yuendumu, Central Australia, between 1950-1970 preserve a unique historical record of defects of the dental enamel (DDEs) among people born from 1890-1960 (n = 377). These data are used, in comparison with precontact data, to trace the chronological changes in ch...

journal_title：American journal of physical anthropology

authors： Littleton J

更新日期：2005-03-01 00:00:00

abstract：:As a part of a research project on molecular variation in Central Africa, we have analyzed 10 microsatellites (CD4, CSFO, D3S1358, D18S51, D21S11, F13A1, FES, TH01, TPOX, and VWA) in the Bamileke and Ewondo from Cameroon and the Sanga and Mbenzele Pygmies from the Central African Republic (a total of 390 chromosomes)....

journal_title：American journal of physical anthropology

authors： Destro-Bisol G,Boschi I,Caglià A,Tofanelli S,Pascali V,Paoli G,Spedini G

更新日期：2000-07-01 00:00:00

abstract：:Frost (1987a) proposed an algorithm for estimating the number of missing osteons that correspond to observed osteon population densities (OPD). Such an algorithm should allow more accurate estimates of bone remodeling rates for skeletal remains for which in vivo labeling is not possible. In order to validate the algor...

journal_title：American journal of physical anthropology

authors： Stout SD,Paine RR

更新日期：1994-01-01 00:00:00

abstract：:Blood groups in 2,935 Roms (Gypsies) of East Slovakia show the following frequencies of phenotypes and genes: A1A2BO phentopes: A1--32.91%, A2--2.42%, B--25.21%, O--30.15%, A1B--8.45%, A2B--0.85%, A1--0.2363, A2--0.0217, B--0.1929, O--0.5491. MN phenotypes: M--27.16%, MN--51.60%, N--21.23%, m--0.5297, n--0.4703. RH ph...

journal_title：American journal of physical anthropology

authors： Bernasovský I,Suchý J,Bernasovská K,Vargová T

更新日期：1976-09-01 00:00:00

abstract：OBJECTIVES:European ancestry in many populations in Latin America at autosomal loci is often higher than that from X-linked loci indicating more European male ancestry and more Amerindian female ancestry. Generally, this has been attributed to more European male gene flow but could also result from an advantage to Euro...

journal_title：American journal of physical anthropology

authors： Hedrick PW

更新日期：2017-07-01 00:00:00

abstract：:The limbic frontal cortex forms part of the neural substrate responsible for emotional reactions to social stimuli. Area 13 is one of the cortical areas long known to be part of the posterior orbitofrontal cortex in several monkey species, such as the macaque. Its presence nevertheless in the human brain has been uncl...

journal_title：American journal of physical anthropology

authors： Semendeferi K,Armstrong E,Schleicher A,Zilles K,Van Hoesen GW

更新日期：1998-06-01 00:00:00

abstract：:Methods for estimating body mass from the human skeleton are often required for research in biological or forensic anthropology. There are currently only two methods for estimating body mass in subadults: the width of the distal femur metaphysis is useful for individuals 1-12 years of age and the femoral head is usefu...

journal_title：American journal of physical anthropology

authors： Robbins G,Sciulli PW,Blatt SH

更新日期：2010-09-01 00:00:00

abstract：OBJECTIVES:Synthesize information on sleep patterns, sleep site use, and daytime predation at sleep sites in lorisiforms of Asia and Africa (10 genera, 36 species), and infer patterns of evolution of sleep site selection. MATERIALS AND METHODS:We conducted fieldwork in 12 African and six Asian countries, collecting da...

journal_title：American journal of physical anthropology

authors： Svensson MS,Nekaris KAI,Bearder SK,Bettridge CM,Butynski TM,Cheyne SM,Das N,de Jong YA,Luhrs AM,Luncz LV,Maddock ST,Perkin A,Pimley E,Poindexter SA,Reinhardt KD,Spaan D,Stark DJ,Starr CR,Nijman V

更新日期：2018-07-01 00:00:00

abstract：OBJECTIVES:Human language represents an extreme form of communicative complexity. Primate facial display complexity, which depends upon facial mobility, can be used as a model for the study of the evolution of communicative complexity. The gelada (Theropithecus gelada) is the only primate that can produce a lip-flip ev...

journal_title：American journal of physical anthropology

authors： Lazow SP,Bergman TJ

更新日期：2020-06-01 00:00:00

abstract：:Phenotypic variability is evaluated in a series of skeletal samples from the Apalachee region of Florida. Based on ethnohistoric evidence, several predictive models for changes in variability are generated. If variability decreases through time, this likely represents the effect of genetic drift in populations experie...

journal_title：American journal of physical anthropology

authors： Stojanowski CM

更新日期：2003-04-01 00:00:00

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：:Since its discovery in southeastern Uzbekistan in 1938, the Teshik-Tash child has been considered a Neandertal. Its affinity is important to studies of Late Pleistocene hominin growth and development as well as interpretations of the Central Asian Middle Paleolithic and the geographic distribution of Neandertals. A cl...

journal_title：American journal of physical anthropology

authors： Glantz M,Athreya S,Ritzman T

更新日期：2009-01-01 00:00:00