We describe population changes for six heron species, which have occurred during the past three decades in five areas of southern and central Europe. We seek correlations in the population levels between areas and between species, and we test the relationship between breeding population and climate...
Allozyme polymorphism at 15 loci ofwas studied in 7 natural populations from Europe, North and tropical Africa. Morphological traits were studied in nine European and eleven Afrotropical strains.Within a population, the biochemical polymorphisms ofand its siblingare not very different, althoughhas a ...
Define African. African synonyms, African pronunciation, African translation, English dictionary definition of African. adj. Of or relating to Africa or its peoples, languages, or cultures. n. 1. A native or inhabitant of Africa. 2. A person of African a
melas population clusters when compared to other members of the An. gambiae species complex, suggesting that they diverged during, or soon after, the radiation of this complex. We used genome-wide SNP data from the three An. melas population clusters to perform population genomic analyses that ...
关键词: Humans Rural Population Aged Caregivers Interviews as Topic African Americans Patient Selection Research United States Female DOI: 10.1177/0898264304268147 被引量: 29 年份: 2004 收藏 引用 批量引用 报错 分享 全部来源 免费下载 求助全文 万方医学 dx.doi.org NCBI Europe PMC NCBI 查看更多 相似...
Raptor population decline rates were significantly more severe in West Africa than elsewhere. In Central, East and southern Africa, there was no significant regional variation in encounter rate trends (χ22 = 0.2113, P = 0.8997; model 4 in Extended Data Table 1), and the median annu...
The African Union's Agenda 2063 presents a bold and transformative vision for the continent. Africa currently has the youngest population in the world. And by 2063, one in four people will be African. The generation of resources for the wellbeing of these people has been much slower than the...
The Yoruba are the largest ethnic group south of the Sahara with a population of 44 million and are the third largest in Africa. They are not a single group but have common language, history, and culture. They became the most urbanized African civilization before the arrival of Europeans. In...
Individuals in the black African study population are currently more willing to donate kidneys than in 1993 (66% v. 81%; p&0.0001), but less willing to donate a heart (64% v. 38%; p&0.0001), a liver (40% v. 34%; p&0.036) and corneas (22% v. 15%, p&0.0059). Conclusions:...
Data were subjected to SPSS analysis.Results indicated that overall, pubic bone shape was the easiest to assess and was the most consistently reliable morphological indicator of sex in both sexes and population groups. At 88% average accuracy, the most discriminating traits in whites were pubic ...