Abstract:
:Low fertility among nomadic !Kung foragers of the northern Kalahari Desert of Botswana has been hypothesized to be an adaptation to scarcity of food. However, a comparison of !Kung fertility before and after a transition to a more sedentary lifestyle indicates that more food did not increase fertility. An examination of the fertility of neighboring sedentary Bantu-speaking Herero pastoralists during the same period also indicates that low female reproductive rates in this region are not unique to the !Kung. Herero fertility has increased dramatically in recent decades, probably in response to the control of sexually transmitted diseases in northwestern Botswana. More food appears to have substantially increased !Kung reproductive success by reducing infant and child mortality rates to levels observed among the Herero. These findings suggest that low !Kung fertility and mortality reflect contact with the Herero, who began expanding in large numbers into !Kung territory in the 1950s. This study emphasizes the need for a more rigorous comparative perspective in anthropology to understand better the significance of findings from restricted populations, and I suggest that evolutionary ecology would benefit from shifting some of its current focus on fertility to mortality.
journal_name
Hum Bioljournal_title
Human biologyauthors
Pennington Rkeywords:
subject
Has Abstractpub_date
1992-08-01 00:00:00pages
497-521issue
4eissn
0018-7143issn
1534-6617journal_volume
64pub_type
杂志文章相关文献
HUMAN BIOLOGY文献大全abstract::Details of the population pyramid of living Herero and Mbanderu of Botswana suggest that infant and childhood mortality of males has been substantially greater than that of females. Direct tests from reproductive histories show that the hazard ratio is approximately 3 to 1 in favor of female survival in infancy and 2 ...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1991-06-01 00:00:00
abstract::We evaluate the blood pressure profile in relation to selected biological, behavioral, and socioeconomic factors among the Lepchas, a tribal population of Asian origin inhabiting the Dzongu area of northern Sikkim. The results show that mean systolic and diastolic blood pressures of Lepcha adults (aged 19 years and ol...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1996-02-01 00:00:00
abstract::The blood glucose levels of pregnant women with insulin-dependent diabetes mellitus and the blood glucose levels of newborns during the first few hours of life show an association with maternal Rh genotype. Distortions of joint maternal-fetal Rh phenotype distribution have also been observed. Because a cluster of gene...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1992-02-01 00:00:00
abstract::We studied 3925 individuals in 961 families to determine the mode of inheritance of overweight. As an index of overweight, we examined body mass index. Our analyses indicate that the most likely genetic model for susceptibility to overweight included moderate polygenic inheritance (34% of variance resulting from many ...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1990-12-01 00:00:00
abstract::The relation between TaqI restriction fragment length polymorphisms (RFLPs) of the cholesteryl ester transfer protein (CETP) gene and plasma lipid and lipoprotein phenotypes was investigated in a sample of Italian and Greek migrants of both sexes, age 40-69 years. Italians display significantly higher mean triglycerid...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1994-02-01 00:00:00
abstract::GM and KM immunoglobulin (Ig) allotypes were tested in 118 autochthonous Basques from northern Navarre. The results are compared to those obtained for the same genetic markers in 6 other Basque subpopulations, 3 from Spain (Guipúzcoa, Vizcaya, and Alava) and 3 from France: Macaye, Saint-Jean Pied de Port, and Mauleon....
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:2000-08-01 00:00:00
abstract::Two microsatellites (CD4 and F13A1) were investigated in seven Brazilian populations: one group each of European- and African-derived subjects from Porto Alegre, southern Brazil, and five Amerindian tribes (three Tupi-Mondé speaking [Gavião, Surui, and Zoró], one Macro-Gê [Xavante], and one Carib [Wai-Wai]). For both ...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:2000-12-01 00:00:00
abstract::A central problem in research on twins is the estimation of the rates of monozygotic and dizygotic twin maternities. The estimation usually follows Weinberg's differential rule. According to this rule, the rate of dizygotic twinning is twice the rate of twin maternities in which the twins are of opposite sex. The mono...
journal_title:Human biology
pub_type: 杂志文章,评审
doi:10.1353/hub.2006.0044
更新日期:2006-06-01 00:00:00
abstract::A mismatch distribution is a tabulation of the number of pairwise differences among all DNA sequences in a sample. In a population that has been stationary for a long time these distributions from nonrecombinant DNA sequences become ragged and erratic, whereas a population that has been growing generates mismatch dist...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1994-08-01 00:00:00
abstract::Alleles of the hypervariable human locus D17S5 were amplified by polymerase chain reaction (PCR) and categorized by length. Unlike other surveys of this locus, the products of amplification were authenticated by Southern analysis using an oligomeric probe directed to part of the 70-base-pair (bp) variable number of ta...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1994-04-01 00:00:00
abstract::Three apolipoprotein B restriction fragment length polymorphism (RFLPs) (XbaI, MspI, and EcoRI) and the signal peptide insertion-deletion polymorphism were investigated using the polymerase chain reaction in 140 individuals from 5 Brazilian Indian tribes. All studied markers were polymorphic in this ethnic group. The ...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1999-02-01 00:00:00
abstract::Recent cloning of RH genes has elucidated their structure, suggesting that RH proteins are part of an oligomeric complex with transport function in the erythrocyte. This observation prompted us to investigate a possible relationship between the RH system and the glycosylated hemoglobin level (Hb A(1c)) in diabetes. Th...
journal_title:Human biology
pub_type: 临床试验,杂志文章
doi:
更新日期:2000-04-01 00:00:00
abstract::It was predicted that at the state level early neonatal (0-6 days) mortality rates and rates for sudden infant death syndrome (SIDS) in the age range 7-364 days would be negatively correlated. Using published data for each of the 50 states and the District of Columbia over the 5-year period 1980-1984, the actual corre...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1991-08-01 00:00:00
abstract::We investigated the relationship between the dispersal potential of a hominin population, its local-scale foraging strategies, and the characteristics of the resource environment using an agent-based modeling approach. In previous work we demonstrated that natural selection can favor a relatively low capacity for asse...
journal_title:Human biology
pub_type: 杂志文章
doi:10.13110/humanbiology.87.3.0205
更新日期:2015-07-01 00:00:00
abstract::We carried out an exploratory historical biology study using temporally distinguished groups of predynastic-Early Dynastic male crania from the region of Upper Egypt. The objectives were, first, to determine the overall pattern of phenetic affinity between temporally sequential series and in relation to the earliest s...
journal_title:Human biology
pub_type: 历史文章,杂志文章
doi:10.3378/1534-6617(2008)80[141:TVIPAO]2.0.CO;2
更新日期:2008-04-01 00:00:00
abstract::Human hair has been commonly classified according to three conventional ethnic human subgroups, that is, African, Asian, and European. Such broad classification hardly accounts for the high complexity of human biological diversity, resulting from both multiple and past or recent mixed origins. The research reported he...
journal_title:Human biology
pub_type: 杂志文章
doi:10.1353/hub.2007.0045
更新日期:2007-06-01 00:00:00
abstract::We analyzed previously reported mtDNA haplogroup frequencies of 577 individuals and hypervariable segment 1 (HVS1) sequences of 265 individuals from Native American tribes in western North America to test hypotheses regarding the settlement of this region. These data were analyzed to determine whether Hokan and Penuti...
journal_title:Human biology
pub_type: 杂志文章,评审
doi:10.1353/hub.2004.0019
更新日期:2004-02-01 00:00:00
abstract::A Buryat population consisting of seven tribal groups in eastern Mongolia has been screened to determine the frequency distribution of different apolipoprotein E and H alleles (APOE and APOH, genes) coding for common isoforms and their association with quantitative plasma lipid levels. Allele frequencies at the APOE l...
journal_title:Human biology
pub_type: 杂志文章
doi:10.1353/hub.2002.0058
更新日期:2002-10-01 00:00:00
abstract::The polymorphism of human mitochondrial DNA (mtDNA) was studied in 118 unrelated Greeks (from northern Greece) using total blood cell DNA and the restriction enzymes HpaI, BamHI, HaeII, MspI, AvaII, and HincII. One new morph was identified for MspI (named MspI morph 18Gr) and is the result of a mutation in a previousl...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1994-08-01 00:00:00
abstract::Birth weight is the single most significant determinant of infant mortality and the chances of a newborn to experience healthy development. Low birth weight also appears to be related to higher risks of several important chronic conditions, such as ischemic heart disease, non-insulin-dependent diabetes, and cancer in ...
journal_title:Human biology
pub_type: 杂志文章,评审
doi:10.3378/027.081.0405
更新日期:2009-08-01 00:00:00
abstract::The DNA profiles of two unrelated individuals can match (complete similarity) by chance alone. When the two individuals are related, the probability of a coincidental match is higher. Here, I deal with the probabilities of coincidental matches for both related and unrelated individuals. The derivation starts from firs...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1996-04-01 00:00:00
abstract::We present the most comprehensive genetic characterization to date of five Fijian island populations: Viti Levu, Vanua Levu, Kadavu, the Lau Islands, and Rotuma, including nonrecombinant Y (NRY) chromosome and mitochondrial DNA (mtDNA) haplotypes and haplogroups. As a whole, Fijians are genetically intermediate betwee...
journal_title:Human biology
pub_type: 杂志文章
doi:10.13110/humanbiology.88.3.0232
更新日期:2016-07-01 00:00:00
abstract::Dermatoglyphic traits have been used to assess population affinities and structure. Here, we describe the digital patterns of four Eskimo populations from Alaska: two Yupik-speaking villages from St. Lawrence Island and two Inupik groups presently residing on mainland Alaska. For a broader evolutionary perspective, th...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1992-10-01 00:00:00
abstract::90 nulliparous white female college students, selected from 2 undergraduate introductory courses at Kansas University, participated in a cross-sectional study designed to compare the fat distribution of oral contraceptive (OC) users to that of nonusers matched for height and weight. The subjects ranged in age from 18...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1988-10-01 00:00:00
abstract::Previous attempts to classify South American Indian tribes according to genetic characteristics have failed to yield a hierarchical system of relationships. This can be explained by the facts that (1) tribal populations did not evolve through sequential fissions but through frequent fusions of groups with diverse hist...
journal_title:Human biology
pub_type: 杂志文章,评审
doi:
更新日期:1991-12-01 00:00:00
abstract::Twelve healthy, anal-receptive, homosexual Caucasian males who were seronegative for HIV antibody were typed for HLA-DR antigens. Flow cytometry was used to immunophenotype peripheral blood lymphocytes bearing the CD4, CD8, LEU7, and combined CD8 and LEU7 antigens. These individuals had reported a large number of sexu...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1991-04-01 00:00:00
abstract::Anthropoid phylogeny has been characterized by dramatic increases in relative brain size. Given the importance of genetic mechanisms in evolution, quantitative genetic analyses of the biological concomitants of relative brain size variation should greatly augment our understanding of this phylogenetic phenomenon. In h...
journal_title:Human biology
pub_type: 杂志文章
doi:
更新日期:1993-12-01 00:00:00
abstract::HLA-DQB1*0302 allele frequency is increased in liver graft recipients with acute rejection. We investigated polymorphism in the upstream regulatory regions (URRs) of the DQB1 gene to determine whether polymorphism in the DQB1 promoter region influences liver graft acceptance. A combination of typing protocols based on...
journal_title:Human biology
pub_type: 杂志文章
doi:10.1353/hub.2001.0088
更新日期:2001-12-01 00:00:00
abstract::The use of ancient DNA techniques in human studies has been hampered by problems of contamination with modern human DNA. The main problem has been that the object of study belongs to the same species as the observer, and the complete elimination of the contamination risk is seemingly unlikely. Contamination has even b...
journal_title:Human biology
pub_type: 历史文章,杂志文章
doi:10.1353/hub.2001.0069
更新日期:2001-10-01 00:00:00
abstract::Seventy individuals from two African and four black Brazilian populations were studied for the first hypervariable segment of mtDNA. To delineate a more complete phylogeographic scenario of the African mtDNA haplogroups in Brazil and to provide additional information on the nature of the Atlantic slave trade, we analy...
journal_title:Human biology
pub_type: 杂志文章
doi:10.1353/hub.2006.0028
更新日期:2006-02-01 00:00:00