Forecast of China's Future Population under the Universal Two-child Policy

Wildlife sanctuaries rescue, rehabilitate, reintroduce and provide life-long care for orphaned and injured animals. Understanding a sanctuary’s population dynamics—patterns in arrival, mortality and projected changes in population size—allows careful planning for future needs. Building on previous work on the population dynamics of chimpanzees (Pan troglodytes) in sanctuaries of the Pan African Sanctuary Alliance (PASA; Faust et al. 2011), this chapter extends analyses to the only PASA bonobo sanctuary. Its authors analysed historic demographic patterns and projected future population dynamics using an individual-based demographic model. The population has been growing at 6.7 per cent per year, driven by arrivals of new individuals (mean = 5.5 arrivals per year). Several model scenarios projecting varying arrival rates, releases and breeding scenarios clarify potential future growth trajectories for the sanctuary. This research illustrates how data on historic dynamics can be modelled to inform future sanctuary capacity and management needs. Les sanctuaires de faune secourent, réhabilitent, réintroduisent, et fournissent des soins pour toute la vie aux animaux orphelins et blessés. Comprendre les dynamiques de la population d’un sanctuaire—les motifs d’arrivée, mortalité, et de changements projetés de la taille de la population—permet une planification prudente pour les nécessités du futur. En se basant sur le travail déjà fait sur les dynamiques de la population chimpanzé (Pan troglodytes) dans les sanctuaires du Pan African Sanctuary Alliance (PASA; Faust et al. 2011), nous étendons notre analyse au seul sanctuaire bonobo par PASA. Nous avons analysé les motifs démographiques historiques et avons projeté les futures dynamiques de la population en utilisant un modèle démographique basé sur l’individu. La population augmente de 6.7 per cent par an, poussée par l’arrivée de nouveaux individus (moyenne = 5.5 arrivées par an). Plusieurs scénarios modèles montrent une trajectoire de potentielle croissance pour le sanctuaire. Cette recherche illustre comment modeler les données sur les dynamiques historiques pour informer la capacité future du sanctuaire et les besoins gestionnaires.

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The Poverty of Policy: Examining Care Leaving Policy in Ethiopia

Institutionalised Children Explorations and Beyond ◽

10.1177/2349300320982399 ◽

2021 ◽

pp. 234930032098239

Author(s):

Anduamlak Molla Takele ◽

Messay Gebremariam Kotecho ◽

Philip Mendes

Keyword(s):

Emerging Adulthood ◽

Policy Framework ◽

Vulnerable Children ◽

Child Policy ◽

Policy Frameworks ◽

The Status ◽

Adult World ◽

Care Leavers ◽

Orphan And Vulnerable Children ◽

Children In Care

International research consistently shows that young care leavers’ journey from care to emerging adulthood is characterised by adversities such as unemployment, poor academic performance, homelessness, involvement in criminal activities, mental illness and early parenthood. As research evidence points out, such negative outcomes are closely linked with the existence of multiple placements, lack of mentoring, limited connections with significant others, the absence of early preparation to leave care, and a dearth of or inadequate policy frameworks that entitle care leavers to use aftercare support schemes. In order to support care leavers’ transition from care to emerging adulthood, Global North countries have implemented an independent care leaving policy framework that serves as a scaffolding for challenges that would arise from care leavers’ exploration of the adult world upon leaving care. However, such experience in formulation of policy to empower care leavers to be an independent adult is not well developed in countries in Global South due to the infant nature of research on care leaving and a preference for addressing the issues of care leavers in the existing child policy frameworks rather than formulating a special policy that deals with care leaving. The status of Ethiopia in this regard is not different. Existing policy frameworks concerning children have failed to address the needs of Ethiopian care leavers despite the existence of over five million orphan and vulnerable children in the country most of whom are placed in institutional childcare centres. This article presents the case for an independent care leaving policy in Ethiopia to address the multifaceted needs of children in care and improve the care leaving service in the country. Thus, the study will shed light on the state of care leaving policy in the world and lessons for Ethiopia to support Ethiopia’s attempt to serve the most vulnerable children in care by developing its own care leaving policy.

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Comparative Analysis of SNP Discovery and Genotyping in Fagus sylvatica L. and Quercus robur L. Using RADseq, GBS, and ddRAD Methods

Forests ◽

10.3390/f12020222 ◽

2021 ◽

Vol 12 (2) ◽

pp. 222

Author(s):

Bartosz Ulaszewski ◽

Joanna Meger ◽

Jaroslaw Burczyk

Keyword(s):

Population Genomics ◽

De Novo ◽

Genetic Studies ◽

Genomic Libraries ◽

Reduced Representation ◽

Large Numbers ◽

Broadleaved Tree Species ◽

Fagus Sylvatica L ◽

Reference Genomes ◽

Future Population

Next-generation sequencing of reduced representation genomic libraries (RRL) is capable of providing large numbers of genetic markers for population genetic studies at relatively low costs. However, one major concern of these types of markers is the precision of genotyping, which is related to the common problem of missing data, which appears to be particularly important in association and genomic selection studies. We evaluated three RRL approaches (GBS, RADseq, ddRAD) and different SNP identification methods (de novo or based on a reference genome) to find the best solutions for future population genomics studies in two economically and ecologically important broadleaved tree species, namely F. sylvatica and Q. robur. We found that the use of ddRAD method coupled with SNP calling based on reference genomes provided the largest numbers of markers (28 k and 36 k for beech and oak, respectively), given standard filtering criteria. Using technical replicates of samples, we demonstrated that more than 80% of SNP loci should be considered as reliable markers in GBS and ddRAD, but not in RADseq data. According to the reference genomes’ annotations, more than 30% of the identified ddRAD loci appeared to be related to genes. Our findings provide a solid support for using ddRAD-based SNPs for future population genomics studies in beech and oak.

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The second pregnancy has no effect in the incidence of macrosomia: a cross-sectional survey in two western Chinese regions

Journal of Health Population and Nutrition ◽

10.1186/s41043-021-00244-z ◽

2021 ◽

Vol 40 (1) ◽

Author(s):

Li Luo ◽

Huan Zeng ◽

Mao Zeng ◽

Xueqing Liu ◽

Xianglong Xu ◽

...

Keyword(s):

Logistic Regression ◽

Western China ◽

Fetal Macrosomia ◽

Multivariate Logistic Regression Model ◽

Multivariate Logistic Regression ◽

Cross Sectional ◽

Second Child ◽

Child Policy ◽

Significant Difference ◽

The Impact

Abstract Background After the implementation of the universal two-child policy in China, the increase in parity has led to an increase in adverse pregnancy outcomes. The impact of one and two fetuses on the incidence of fetal macrosomia has not been fully confirmed in China. This study aimed to explore the differences in the incidence of fetal macrosomia in first and second pregnancies in Western China after the implementation of the universal two-child policy. Methods A total of 1598 pregnant women from three hospitals were investigated by means of a cross-sectional study from August 2017 to January 2018. Participants were recruited by convenience and divided into first and second pregnancy groups. These groups included 1094 primiparas and 504 women giving birth to their second child. Univariate and multivariate logistic regression analyses were performed to discuss the differences in the incidence of fetal macrosomia in first and second pregnancies. Results No significant difference was found in the incidence of macrosomia in the first pregnancy group (7.2%) and the second pregnancy group (7.1%). In the second-time pregnant mothers, no significant association was found between the macrosomia of the second child (5.5%) and that of the first child (4.7%). The multivariate logistic regression model showed that mothers older than 30 years are not likely to give birth to children with macrosomia (odds ratio (OR) 0.6, 95% confidence interval (CI) 0.4,0.9). Conclusions The incidence of macrosomia in Western China is might not be affected by the birth of the second child and is not increased by low parity.

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Cross-species microsatellite amplification in Vasconcellea and related genera and their use in germplasm classification

Genome ◽

10.1139/g06-035 ◽

2006 ◽

Vol 49 (7) ◽

pp. 786-798 ◽

Cited By ~ 13

Author(s):

T Kyndt ◽

B Van Droogenbroeck ◽

A Haegeman ◽

I Roldán-Ruiz ◽

G Gheysen

Keyword(s):

Population Genetics ◽

Chloroplast Microsatellites ◽

Microsatellite Data ◽

Chloroplast Microsatellite ◽

Diversity Assessment ◽

Ssr Primers ◽

Polymorphism Rate ◽

Nuclear Ssr ◽

Simple Sequence ◽

Future Population

To generate inexpensive and efficient DNA markers for addressing a number of population genetics problems and identification of wild hybrids in Vasconcellea, we have evaluated the use of simple sequence repeat (SSR) primers previously developed for other species. A set of 103 Vasconcellea accessions and some individuals of the related genera Carica and Jacaratia were analyzed with 10 primer pairs directing amplification of chloroplast microsatellites in Nicotiana tabacum and 9 nuclear SSR primer pairs recently identified in Vasconcellea × heilbornii. Heterologous amplification of chloroplast SSRs was successful for 8 of the 10 loci, of which 6 showed polymorphism. Seven of the 9 nuclear SSR primer pairs were useful in Vasconcellea and often also in Jacaratia and Carica, all revealing polymorphism. Exclusive haplotypes for each described taxon were identified based on chloroplast microsatellite data. Clustering based on separate nuclear and chloroplast data resulted in a clear grouping per taxon, but only low resolution was obtained above species level. The codominancy of nuclear SSRs and the general high polymorphism rate of SSR markers will make them more useful in future population genetics studies and diversity assessment in conservation programs.Key words: Carica, Jacaratia, Vasconcellea, simple sequence repeats, cross-species amplification, classification, interspecific hybrids.

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