scholarly journals Meta-analysis reveals severe pollination limitation for the flowering plants growing in East Himalaya-Hengduan Mountains region.

2019 ◽  
Author(s):  
Xianfeng Jiang ◽  
Yanping Xie
Keyword(s):  
Hot Spots ◽  
Meta Analysis ◽  
Flowering Plants ◽  
Floral Traits ◽  
Clear Relationship ◽  
Hengduan Mountains ◽  
Independent Data ◽  
Pollination Limitation ◽  
Confident Interval ◽  
The World

Abstract Pollination limitation widely occurs and has an important effect on flowering plants. East Himalaya-Hengduan Mountains region is one of the 24 biodiversity hot spots around the world. However, no study as we known has synthetically assessed the degree of pollination limitation in this area. The present study aims to reveal the degree of pollination limitation for the flowering plants growing on East Himalaya-Hengduan mountains, and test if the reproductive features, the floral traits or the elevation are closely correlated with the degree of pollination limitation. We complied data from 76 studies, with 96 species and 108 independent data records included. We found that flowering plants in this area undergo severe pollination limitation (overall hedges’d=2.004, with the 95% confident interval [1.3264, 2.6743]), which is much higher than the flowering plants growing in many other regions around the world. The degree of pollination limitation was tested to be related to the capacity of autonomous self-reproduction and the pollination pattern (generalized vs. specialized pollinated) of plants. In addition, we found a clear relationship between elevation and the degree of pollination limitation, which indicates that plants might undergo severe pollination limitation in higher places.

scholarly journals Meta-analysis reveals severe pollen limitation for the flowering plants growing in East Himalaya-Hengduan Mountains region

BMC Ecology ◽  
2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Xianfeng Jiang ◽  
Yanping Xie
Keyword(s):  
Confidence Interval ◽  
Pollen Limitation ◽  
Meta Analysis ◽  
Flowering Plants ◽  
Biodiversity Hotspot ◽  
Clear Relationship ◽  
Hengduan Mountains ◽  
Independent Data ◽  
The World ◽  
Global Biodiversity

Abstract Background Pollen limitation occurs widely and has an important effect on flowering plants. The East Himalaya-Hengduan Mountains region is a global biodiversity hotspot. However, to our knowledge, no study has synthetically assessed the degree of pollen limitation in this area. The present study aims to reveal the degree of pollen limitation for the flowering plants growing on East Himalaya-Hengduan Mountains and to test whether the reproductive features or the elevation is closely correlated with the degree of pollen limitation in this area. Results We complied data from 76 studies, which included 96 species and 108 independent data records. We found that the flowering plants in this area undergo severe pollen limitation [overall Hedges’ d = 2.004, with a 95% confidence interval (1.3264, 2.6743)] that is much higher than that of the flowering plants growing in many other regions around the world. The degree of pollen limitation was tested to determine the correlation with the capacity for autonomous self-reproduction and with the pollination pattern (generalized vs. specialized pollination) of plants. In addition, we found a clear relationship between elevation and the degree of pollen limitation, which indicates that plants might undergo more severe pollen limitation in relatively high places. Conclusions This paper is the first to address the severe pollen limitation of the flowering plants growing in East Himalaya-Hengduan Mountains region. Moreover, we reveal the positive correlation between elevation and the degree of pollen limitation.

scholarly journals Meta-analysis reveals severe pollen limitation for the flowering plants growing in the East Himalaya-Hengduan Mountains region.

2020 ◽  
Author(s):  
xianfeng jiang ◽  
Yanping Xie
Keyword(s):  
Confidence Interval ◽  
Pollen Limitation ◽  
Meta Analysis ◽  
Flowering Plants ◽  
Biodiversity Hotspot ◽  
Clear Relationship ◽  
Hengduan Mountains ◽  
Independent Data ◽  
The World ◽  
Global Biodiversity

Abstract Background: Pollen limitation occurs widely and has an important effect on flowering plants. The East Himalaya-Hengduan Mountains region is a global biodiversity hotspot. However, to our knowledge, no study has synthetically assessed the degree of pollen limitation in this area. The present study aims to reveal the degree of pollen limitation for the flowering plants growing on the East Himalaya-Hengduan Mountains and to test whether the reproductive features or the elevation is closely correlated with the degree of pollen limitation in this area.Results: We complied data from 76 studies, which included 96 species and 108 independent data records. We found that the flowering plants in this area undergo severe pollen limitation (overall Hedges’ d=2.004, with a 95% confidence interval [1.3264, 2.6743]) that is much higher than that of the flowering plants growing in many other regions around the world. The degree of pollen limitation was tested to determine the correlation with the capacity for autonomous self-reproduction and with the pollination pattern (generalized vs. specialized pollination) of plants. In addition, we found a clear relationship between elevation and the degree of pollen limitation, which indicates that plants might undergo more severe pollen limitation in relatively high places.Conclusions: This paper is the first to address the severe pollen limitation of the flowering plants growing in the East Himalaya-Hengduan Mountains region. Moreover, we reveal the positive correlation between elevation and the degree of pollen limitation.

scholarly journals Meta-analysis reveals severe pollen limitation for the flowering plants growing in the East Himalaya-Hengduan Mountains region.

2020 ◽  
Author(s):  
Xianfeng Jiang ◽  
Yanping Xie
Keyword(s):  
Confidence Interval ◽  
Pollen Limitation ◽  
Meta Analysis ◽  
Flowering Plants ◽  
Biodiversity Hotspot ◽  
Clear Relationship ◽  
Hengduan Mountains ◽  
Independent Data ◽  
The World ◽  
Global Biodiversity

Abstract Background: Pollen limitation occurs widely and has an important effect on flowering plants. The East Himalaya-Hengduan Mountains region is a global biodiversity hotspot. However, to our knowledge, no study has synthetically assessed the degree of pollen limitation in this area. The present study aims to reveal the degree of pollen limitation for the flowering plants growing on East Himalaya-Hengduan Mountains and to test whether the reproductive features or the elevation is closely correlated with the degree of pollen limitation in this area. Results: We complied data from 76 studies, which included 96 species and 108 independent data records. We found that the flowering plants in this area undergo severe pollen limitation (overall Hedges’ d=2.004, with a 95% confidence interval [1.3264, 2.6743]) that is much higher than that of the flowering plants growing in many other regions around the world. The degree of pollen limitation was tested to determine the correlation with the capacity for autonomous self-reproduction and with the pollination pattern (generalized vs. specialized pollination) of plants. In addition, we found a clear relationship between elevation and the degree of pollen limitation, which indicates that plants might undergo more severe pollen limitation in relatively high places.Conclusions: This paper is the first to address the severe pollen limitation of the flowering plants growing in East Himalaya-Hengduan Mountains region. Moreover, we reveal the positive correlation between elevation and the degree of pollen limitation.

scholarly journals An Understanding of the Global Status of Major Bacterial Pathogens of Milk Concerning Bovine Mastitis: A Systematic Review and Meta-Analysis (Scientometrics)

Pathogens ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 545
Author(s):  
Paramanandham Krishnamoorthy ◽  
Kuralayanapalya P. Suresh ◽  
Kavitha S. Jayamma ◽  
Bibek R. Shome ◽  
Sharanagouda S. Patil ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Management Practices ◽  
Meta Analysis ◽  
Bacterial Species ◽  
Clinical Mastitis ◽  
Therapeutic Interventions ◽  
Coagulase Negative Staphylococcus ◽  
Prevalence Studies ◽  
The World ◽  
Pathogen Prevalence

In this study, the major mastitis pathogen prevalence in the cattle and buffalo of the world was estimated by a meta-analysis. Staphylococcus (S) species, Streptococcus (St) species, and Escherichia coli (Ec) prevalence studies reported during 1979–2019 were collected using online databases, and offline resources. A meta-analysis of these data was done with the meta package in R-Software. The Staphylococcus aureus was the major mastitis pathogen, mostly causing subclinical mastitis, Ec causing clinical mastitis and St causing subclinical and clinical mastitis. The pooled prevalence estimates of S, St, and Ec were 28%, 12%, and 11% in the world from 156, 129, and 92 studies, respectively. The S, St, and Ec prevalences were high in Latin America (51%), Oceania (25%), and Oceania (28%), respectively. Higher S, St, and Ec prevalences were observed by molecular methods, signifying high sensitivity and usefulness for future studies. Among bacterial species, S. aureus (25%) followed by coagulase-negative Staphylococcus species (20%), Escherichia coli (11%), St. agalactiae (9%), St. uberis (9%) were the important pathogens present in the milk of the world. We hypothesize that there is a urgent need to reduce mastitis pathogen prevalence by ensuring scientific farm management practices, proper feeding, therapeutic interventions to augment profits in dairying, and improving animal and human health.

scholarly journals Cardiovascular Diseases and COVID-19 Mortality and Intensive Care Unit Admission: A Systematic Review and Meta-analysis

2020 ◽  
Author(s):  
Amir Shamshirian ◽  
Keyvan Heydari ◽  
Reza Alizadeh-Navaei ◽  
Mahmood Moosazadeh ◽  
Saeed Abrotan ◽  
...  
Keyword(s):  
Heart Failure ◽  
Systematic Review ◽  
Cardiovascular Disease ◽  
Intensive Care Unit ◽  
Intensive Care ◽  
Cardiovascular Diseases ◽  
Meta Analysis ◽  
Cardiac Injury ◽  
Icu Admission ◽  
The World

AbstractImportanceOn 11th March, the World Health Organization declared a pandemic of COVID-19. There are over 1 million cases around the world with this disease and it continues to raise. Studies on COVID-19 patients have reported high rate of cardiovascular disease (CVD) among them and patients with CVD had higher mortality rate.ObjectivesSince there were controversies between different studies about CVD burden in COVID-19 patients, we aimed to study cardiovascular disease burden among COVID-19 patients using a systematic review and meta-analysis.Data SourcesWe have systematically searched databases including PubMed, Embase, Cochrane Library, Scopus, Web of Science as well as medRxiv pre-print database. Hand searched was also conducted in journal websites and Google Scholar.Study SelectionStudies reported cardiovascular disease among hospitalized adult COVID-19 patients with mortality or ICU admission (primary outcomes) were included into meta-analysis. In addition, all of studies which reported any cardiovascular implication were included for descriptive meta-analysis. Cohort studies, case-control, cross-sectional, case-cohort and case series studies included into the study. Finally, 16 studies met the inclusion criteria for primary outcome and 59 studies for descriptive outcome.Data Extraction and SynthesisTwo investigators have independently evaluated quality of publications and extracted data from included papers. In case of disagreement a supervisor solved the issue and made the final decision. Quality assessment of studies was done using Newcastle-Ottawa Scale tool. Heterogeneity was assessed using I-squared test and in case of high heterogeneity (>%50) random effect model was used.Main Outcomes and MeasuresMeta-analyses were carried out for Odds Ratio (OR) of mortality and Intensive Care Unit (ICU) admission for different CVDs and Standardized Mean Difference (SMD) was calculated for Cardiac Troponin I. We have also performed a descriptive meta-analysis on different CVDs.ResultsSixteen papers including 3473 patients entered into meta-analysis for ICU admission and mortality outcome and fifty-nine papers including 9509 patients for descriptive outcomes. Results of meta-analysis indicated that acute cardiac injury, (OR: 15.94, 95% CI 2.31-110.14), hypertension (OR: 1.92, 95% CI 1.92-2.74), heart Failure (OR: 11.73, 95% CI 5.17-26.60), other cardiovascular disease (OR: 1.95, 95% CI 1.17-3.24) and overall CVDs (OR: 3.37, 95% CI 2.06-5.52) were significantly associated with mortality in COVID-19 patients. Arrhythmia (OR: 22.17, 95%CI 4.47-110.04), acute cardiac injury (OR: 19.83, 95%CI 7.85-50.13), coronary heart disease (OR: 4.19, 95%CI 1.27-13.80), cardiovascular disease (OR: 4.17, 95%CI 2.52-6.88) and hypertension (OR: 2.69, 95%CI 1.55-4.67) were also significantly associated with ICU admission in COVID-19 patients.ConclusionOur findings showed a high burden of CVDs among COVID-19 patients which was significantly associated with mortality and ICU admission. Proper management of CVD patients with COVID-19 and monitoring COVID-19 patients for acute cardiac conditions is highly recommended to prevent mortality and critical situations.Key PointsQuestionAre cardiovascular disease associated with mortality and Intensive Care Unit admission (ICU) of COVID-19 patients?FindingsIn this systematic review and meta-analysis, acute cardiac injury, hypertension, heart failure and overall cardiovascular diseases were significantly associated with mortality in COVID-19 patients. Arrhythmia, coronary heart disease, hypertension, acute cardiac injury and other cardiovascular disease were significantly associated with ICU admission of COVID-19 patients.MeaningCardiovascular diseases have significant role in mortality and disease severity of COVID-19 patients. COVID-19 patients need to be carefully monitored for cardiovascular diseases and managed properly in case of acute cardiac conditions.

scholarly journals What can Girlhood Studies be?

2021 ◽  
Vol 14 (2) ◽  
pp. v-vi
Author(s):  
Claudia Mitchell
Keyword(s):  
Indigenous People ◽  
Meta Analysis ◽  
Special Issue ◽  
Critical Dialogue ◽  
The World ◽  
History Of ◽  
Girlhood Studies ◽  
Girls Studies ◽  
Interdisciplinary Journal

This Special Issue of Girlhood Studies: An Interdisciplinary Journal represents another milestone in the history of the journal, coming, as it does, out of the second international conference of the International Girls’ Studies Association (IGSA) that was hosted by Notre Dame University, South Bend, Indiana, in 2019. As the guest editors, Angeletta Gourdine, Mary Celeste Kearney, and Shauna Pomerantz highlight in their introduction, the conference itself and the Special Issue set in motion the type of dialogue and conversation that is crucial to challenging and changing the world of inequities and disparities experienced by girls. For a relatively new area of study that has roots in feminism and social change, critical dialogue about inclusion and exclusion and about ongoing reflexivity and questioning must surely be at the heart of girls studies. The guest editors capture this admirably when they replace the question “What is girlhood studies?” with the provocative and generative question, “What can girlhood studies be?” The articles and book reviews in this Special Issue tackle what girls studies could be in so many different ways, ranging from broadening and deepening notions of intersectionality and interdisciplinarity to ensuring a place for the article, “Where are all the Girls and Indigenous People at IGSA@ND?” co-authored by the girls who belong to the Young Indigenous Women’s Utopia group. Such an account offers a meta-analysis of the field of girlhood studies, but so did the call for the Special Issue as a whole. It is commendable that this team of co-editors assembled and curated a series of articles that reveal the very essence of the problematic that girlhood studies seeks to address.

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