Abstract：
:Recent studies point to contact and possible admixture among contemporaneous hominin species during the Plio-Pleistocene. However, detection of hybridization in fossils-and especially fossil hominins-is contentious, and it is hindered in large part by our lack of understanding about how morphological hybridity is manifested in the primate skeleton. Here, we report on a study of known-pedigree, purebred yellow and olive baboons (n = 112) and their hybrids (n = 57), derived from the baboon colony of the Southwest Foundation for Biomedical Research. The hybrids were analyzed in two different groups: (1) F1 = olive x yellow first-generation hybrids; (2) B1 = olive x F1 backcross hybrids. Thirty-nine metric variables were tested for heterosis and dysgenesis. Nonmetric data were also collected from the crania. Results show that these primate hybrids are somewhat heterotic relative to their parental populations, are highly variable, and display novel phenotypes. These effects are most evident in the dentition and probably indicate the mixing of two separately coadapted genomes and the breakdown in the coordination of early development, despite the fact that these populations diverged fairly recently. Similar variation is also observed in museum samples drawn from natural hybrid zones. The results offer a strategy for detecting hybrid zones in the fossil record; implications for interpreting the hominin fossil record are discussed.
journal_name
J Hum Evoljournal_title
Journal of human evolutionauthors
Ackermann RR,Rogers J,Cheverud JMdoi
10.1016/j.jhevol.2006.07.009subject
Has Abstractpub_date
2006-12-01 00:00:00pages
632-45issue
6eissn
0047-2484issn
1095-8606pii
S0047-2484(06)00148-5journal_volume
51pub_type
杂志文章abstract：:Archaeological excavations at the DK site in the eastern Olduvai Basin, Tanzania, age-bracketed between ∼1.88 Ma (Bed I Basalt) and ∼1.85 Ma (Tuff IB), record the oldest lahar inundation, modification, and preservation of a hominin "occupation" site yet identified. Our landscape approach reconstructs environments and ...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2017.11.011
更新日期：2018-03-01 00:00:00
abstract：:The Sahara Desert episodically became a space available for hominins in the Pleistocene. Mostly, desert conditions prevailed during the interpluvial periods, which were only periodically interrupted by enhanced precipitation during pluvial or interglacial periods. Responding to Quaternary climatic changes, hominin dis...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2019.01.004
更新日期：2019-05-01 00:00:00
abstract：:The phylogenetic relationships of the late Eocene anthropoids Catopithecus browni and Proteopithecus sylviae are currently a matter of debate, with opinion divided as to whether these taxa are stem or crown anthropoids. The phylogenetic position of Catopithecus is of particular interest, for, unlike the highly general...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1006/jhev.2001.0508
更新日期：2001-12-01 00:00:00
abstract：:Little is known about the biogeographical and evolutionary histories of macaques (Macaca spp.) in East Asia because the phylogenetic positions of fossil species remain unclear. Here we examined the zygomaxillary remains of a fossil macaque (M. cf. robusta) from the Durubong Cave Complex, South Korea, that dates back t...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2018.02.002
更新日期：2018-06-01 00:00:00
abstract：:Early hominid brain morphology is reassessed from endocasts of Australopithecus africanus and three species of Paranthropus, and new endocast reconstructions and cranial capacities are reported for four key specimens from the Paranthropus clade. The brain morphology of Australopithecus africanus appears more human lik...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1006/jhev.1999.0378
更新日期：2000-05-01 00:00:00
abstract：:As early as the 1970s, Robinson defined lumbar vertebrae according to their zygapophyseal orientation. He identified six lumbar elements in fossil Sts 14 Australopithecus africanus, one more than is commonly present in modern humans. It is now generally inferred that the modal number of lumbar vertebrae for australopi...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2012.01.008
更新日期：2012-04-01 00:00:00
abstract：:Garcia et al. (2011) recently discussed early human dispersals into the Iberian Peninsula, describing several putative lithic artifacts (Martínez et al., 2010) recovered from layer 7 of the Vallpara díssection (Madurell-Malapeira et al., 2010) in Terrassa (Vallès-Penedès Basin, Catalonia, Spain). According to the auth...
journal_title：Journal of human evolution
pub_type： 评论,新闻
doi：10.1016/j.jhevol.2011.10.005
更新日期：2012-01-01 00:00:00
abstract：:To address questions regarding the evolutionary origin, radiation and dispersal of the genus Homo, it is crucial to be able to place the occurrence of hominin fossils in a high-resolution chronological framework. The period around 2 Ma (millions of years ago) in eastern Africa is of particular interest as it is at thi...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2013.09.002
更新日期：2013-12-01 00:00:00
abstract：:Complete radii in the fossil record preceding recent humans and Neandertals are very scarce. Here we introduce the radial remains recovered from the Sima de los Huesos (SH) site in the Sierra de Atapuerca between 1976 and 2011 and which have been dated in excess of 430 ky (thousands of years) ago. The sample comprises...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2015.09.010
更新日期：2016-01-01 00:00:00
abstract：:ESR and U-series analyses of teeth from the palaeoanthropological site of Hexian which contained Homo erectus remains, illustrate the limited effectiveness of stand-alone ESR and U-series age estimates on faunal materials. The problem lies in the unknown U-uptake history causing very large uncertainties in the age res...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1006/jhev.1997.0211
更新日期：1998-06-01 00:00:00
abstract：:Drawing inferences about locomotor energetics from limb morphology, especially in regard to small differences between individuals, depends critically on valid estimates of lower-limb inertial properties. While there are numerous options for such estimations in the literature, geometric models that involve simple measu...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2006.04.001
更新日期：2006-09-01 00:00:00
abstract：:Vegetation and plant foods for hominins of lowermost Bed II, Olduvai Gorge were modeled by examining vegetation in modern habitats in northern Tanzania (Lake Manyara, Ngorongoro, Serengeti) that are analogous to the paleolandscape in terms of climate, land forms, and soil types, as indicated by previous paleoenvironme...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2007.03.002
更新日期：2007-08-01 00:00:00
abstract：:The Middle to Upper Paleolithic transition is often linked with a bio-cultural shift involving the dispersal of modern humans outside of Africa, the concomitant replacement of Neanderthals across Eurasia, and the emergence of new technological traditions. The Zagros Mountains region assumes importance in discussions c...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2017.05.011
更新日期：2017-08-01 00:00:00
abstract：:Africa's southern Cape is a key region for the evolution of our species, with early symbolic systems, marine faunal exploitation, and episodic production of microlithic stone tools taken as evidence for the appearance of distinctively complex human behavior. However, the temporally discontinuous nature of this evidenc...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2017.09.006
更新日期：2018-01-01 00:00:00
abstract：:Feeding systems and behaviors must evolve to satisfy the metabolic needs of organisms. This includes modifications to feeding systems as body size and metabolic needs change. Using our own data and data from the literature, we examine how size-related changes in metabolic needs are met by size-related changes in daily...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2009.02.007
更新日期：2009-06-01 00:00:00
abstract：:Although the Neandertal locomotor system has been shown to differ from Homo sapiens, characteristics of Neandertal entheses, the skeletal attachments for muscles, tendons, ligaments and joint capsules, have never been specifically investigated. Here, we analyse lower limb entheses of the Krapina Neandertal bones (Croa...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2010.12.007
更新日期：2011-06-01 00:00:00
abstract：:The habitats in which extinct hominids existed has been a key issue in addressing the origin and extinction of early hominids, as well as in understanding various morphological and behavioral adaptations. Many researchers postulated that early hominids lived in an open savanna (Dart, 1925; Robinson, 1963; Howell, 1978...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1006/jhev.1996.0106
更新日期：1997-02-01 00:00:00
abstract：:High dental metric variation in the large hominoid sample from the late Miocene site of Lufeng, China has been interpreted in two ways: (1) there are two morphologically similar species that broadly overlap in size, and (2) there is one species that is more highly sexually dimorphic in dental size, and perhaps in body...
journal_title：Journal of human evolution
pub_type： 历史文章,杂志文章
doi：10.1006/jhev.1998.0253
更新日期：1998-12-01 00:00:00
abstract：:Die Kelders Cave 1 (DK1) preserves a thick series of Middle Stone Age (MSA) horizons that date to a fairly short temporal interval sometime between about 60 and 80 ka ago. Twenty-seven human fossils, comprising 24 isolated teeth, a mandibular fragment, and two manual middle phalanges derive from seven of the 12 layers...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1006/jhev.1999.0353
更新日期：2000-01-01 00:00:00
abstract：:Non-human primates demonstrate food preferences much like humans. We have little insight, however, into how those preferences impact oral processing in primates. To begin describing this relationship, we conducted a preliminary analysis measuring food preference in two tufted capuchins (Cebus apella) and comparing ran...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2016.07.001
更新日期：2016-09-01 00:00:00
abstract：:Adaptations indicative of habitual bipedalism are present in the earliest recognized hominins. However, debate persists about various aspects of bipedal locomotor behavior in fossil hominins, including the nature of gait kinematics, locomotor variability across different species, and the degree to which various austra...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2018.03.008
更新日期：2018-08-01 00:00:00
abstract：:Metric and shape features of the Lower Pleistocene mandibular specimen ATD605 from the level 6 of Gran Dolina site (Atapuerca, Spain) are compared with a large sample of fossil hominid mandibles. The analysis shows that ATD6-5 displays a generalized morphology largely shared with both African and European Lower and Mi...
journal_title：Journal of human evolution
pub_type： 历史文章,杂志文章
doi：10.1006/jhev.1999.0340
更新日期：1999-09-01 00:00:00
abstract：:Australopithecus anamensis, among the earliest fully bipedal hominin species, lived in eastern Africa around 4 Ma. Much of what is currently known about the paleoecology of A. anamensis comes from the type locality, Kanapoi, Kenya. Here, we extend knowledge of the range of environments occupied by A. anamensis by pres...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2020.102928
更新日期：2021-01-12 00:00:00
abstract：:Studies have reported an empirical link between the size of the semicircular canals and locomotor agility across adult primates. In this paper, we investigate the possibility that this relationship does not follow from the function of the semicircular canals to sense head rotations, but rather reflects spatial constra...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2008.02.010
更新日期：2008-08-01 00:00:00
abstract：:This study examines the genetic affinities of various modern human groupings using a multivariate analysis of morphometric data. Phylogenetic relationships among these groupings are also explored using neighbor-joining analysis of the metric data. Results indicate that the terminal Pleistocene/early Holocene fossils f...
journal_title：Journal of human evolution
pub_type： 历史文章,杂志文章
doi：10.1016/j.jhevol.2007.10.010
更新日期：2008-06-01 00:00:00
abstract：:Primates are highly social animals. As such, they utilize a large repertoire of social skills to manage their complex and dynamic social environments. In order to acquire complex social skills, primates require an extended learning period. Here 1 perform a comparative analysis using independent contrasts to show that ...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1006/jhev.1997.0140
更新日期：1997-06-01 00:00:00
abstract：:Dolichocebus is known from the type skull encased in a concretion, numerous isolated teeth, parts of two mandibles, and a talus. The specimens come from the Trelew Member (early Miocene, Colhuehuapian South American Land Mammal Age) of the Sarmiento Formation near the village of Gaiman, Chubut Province, Argentina, dat...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2007.09.002
更新日期：2008-03-01 00:00:00
abstract：:Most quadrupeds walk with lateral sequence (LS) gaits, where hind limb touchdowns are followed by ipsilateral forelimb touchdowns. Primates, however, typically walk with diagonal sequence (DS) gaits, where hind limb touchdowns are followed by contralateral forelimb touchdowns. Because the use of DS gaits is nearly ubi...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2007.01.005
更新日期：2007-07-01 00:00:00
abstract：:The biomechanical characterization of lower limb long bones in the chrono-ecogeographically diverse species Homo erectus is a fundamental step for assessing evolutionary changes in locomotor mode and body shape that occurred within the genus Homo. However, the samples available for the Early and earlier Middle Pleisto...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2012.08.003
更新日期：2012-11-01 00:00:00
abstract：:This study examines geographic and temporal variation in three mammalian taxa co-occurring in eastern and southern Africa. The selected taxa-the spotted hyena (Crocuta crocuta), the plains zebra (Equus burchellii), and the impala (Aepyceros melampus)--are geographically widespread in modern times and are abundant in e...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2007.01.014
更新日期：2007-11-01 00:00:00
