The Impact of Phytophthora cinnamomi on Six Rare Native Tree and Shrub Species in the Brisbane Ranges, Victoria

1997 ◽  
Vol 45 (6) ◽  
pp. 975 ◽  
Author(s):  
Des Peters ◽  
Gretna Weste
Keyword(s):  
At Risk ◽  
Plant Density ◽  
Phytophthora Cinnamomi ◽  
Species At Risk ◽  
Shrub Species ◽  
Stem Infection ◽  
Native Tree ◽  
The Impact ◽  
Disease Free ◽  
Foliage Spray

The impact of Phytophthora cinnamomi was measured on six native tree and shrub species occurring in the Brisbane Ranges, Victoria, that are considered significant, rare or vulnerable and likely to become endangered. Seedlings of Eucalyptus yarraensis (rare) and cuttings of Grevillea chrysophaea (significant), Olearia pannosa, Pultenaea graveolens (both vulnerable) and Prostanthera decussata and Rhagodia parabolica (both rare) were grown in disease-free soil and inoculated with P. cinnamomi. After 60 days, all plants of G. chrysophaea and P. graveolens were dead and, hence, were regarded as highly susceptible. Inoculated plants of P. decussata developed severe symptoms and 13% died, while O. pannosa showed decreased vigour with 11% dying. Both species were classified as susceptible. Some plants of R. parabolica developed symptoms and were slightly susceptible, butE. yarraensis was resistant. A foliage spray of the phosphonate, Foli-R-Fos (dipotassium phosphonate) on healthy susceptible species, followed by stem inoculation with the pathogen, reduced both stem infection and mortalities, but did not eliminate the pathogen. The concentration of 3% was slightly phytotoxic to G. chrysophaea and P. decussata. The distribution of the six species and of disease due to P. cinnamomi was mapped. Stands of G. chrysophaea, O. pannosa and P. graveolens are diseased and at risk. One of the few known stands of P. decussata was invaded recently. When measured on replicate quadrats located in areas of recent disease, old disease and areas free from disease, P. cinnamomi was shown to produce significant reductions in plant density, plant growth, flowering and regeneration, particularly in areas recently invaded by the pathogen, but less on old infested areas. One-third of the population of O. pannosa is dying due to P. cinnamomi and its seed production is inhibited. There is a strong decline in populations of G. chrysophaea, and P. graveolens, which may place these species at risk.

scholarly journals Biodiversity and Stage of the Art of Three Pollinators Taxa in Mexico: An Overview

2021 ◽  
Vol 13 (16) ◽  
pp. 9051
Author(s):  
David Urbán-Duarte ◽  
José Fernando De La Torre-Sánchez ◽  
Yooichi Kainoh ◽  
Kazuo Watanabe
Keyword(s):  
At Risk ◽  
State Of The Art ◽  
Species Conservation ◽  
Species At Risk ◽  
Conservation Action ◽  
Pollinator Species ◽  
The Status ◽  
Abundance And Diversity ◽  
Policies And Programs ◽  
The Impact

The Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) confirmed that pollinators have declined in abundance and diversity; additionally, there is insufficient data for Latin America. Thus, we performed a review on scientific studies and databases to determine the state of the art of the diversity of three pollinator animals (bees, hummingbirds, and bats) in Mexico as well as an analysis of relevant public policies to conserve these species. We found 2063 bee species reported to be present in Mexico. The biodiversity of hummingbirds (58 species) and pollinator bats (12 species) is well known. We identified 57 scientific studies published in the last 20 years related to the biodiversity of bees (30 studies), hummingbirds (16 studies), and pollinator bats (11 studies). Relatively few, or no current studies on hummingbirds and pollinators bats at risk as well as for more than 1000 bee species is available. Great efforts have been made about policies and programs to improve the knowledge and conservation of pollinators in Mexico the last years such as the Species at Risk Conservation Program (PROCER), the Species Conservation Action Program (PACE), and the Natural Protected Ares System (CONANP). However, information of the status of many species and regions is still scarce. Thus, more studies about biodiversity, density, and trends as well as studies of the impact of policies and programs on pollinator species in Mexico are needed.

GAMBARAN PENGETAHUAN SISWA TENTANG PERILAKU SEKS BEBAS DI SMA/SMK KOTA LUBUKLINGGAU TAHUN 2016

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Rini Mayasari Rini Mayasari
Keyword(s):  
High School ◽  
Univariate Analysis ◽  
Good Knowledge ◽  
Sex Behavior ◽  
School Class ◽  
Sufficient Knowledge ◽  
High School Class ◽  
Study Population ◽  
The Impact ◽  
Disease Free

ABSTRACT   Free sex is a relationship that is done by men and women without matrimony. Various forms of sexual behavior, such as intimate dating, courtship, to have sexual contact. Factors associated with sex behavior among others, is the lack of knowledge about free sex, free sex impact, forms of promiscuity, perversion LGBT, and disease-free sex. This study design is the technique of sampling using quantitative indirectly using a questionnaire tools shaped questionnaires. Be knew overview of students' knowledge about sex in high school / vocational Lubuk Linggau Year 2016. The study population was high school class XII students in schools in the city Lubuklingga 2016. The sample in this study is the high school class XII students in 9 schools there in Lubuklinggau of 167 people. Results of univariate analysis showed respondent knowledge about free sex amounted to 48 people (28,74%), students with sufficient knowledge of 54 people (32,33%), and students with less knowledge of 65 people (38, 93%). Students with a good knowledge about the impact of free sex amounted to 57 (34,13%), students with sufficient knowledge of 69 people (41,31%), and students with less knowledge 41 (24,56%). Students with a good knowledge about the form of free sex amounted to 58 students (34,73%), students with sufficient knowledge totaled 49 peoples (29,34%), and students with less knowledge of 60 people (35,93%). Students with a good knowledge about LGBT amounted to 54 (32,34%), students with sufficient knowledge amounted to 68 peoples (40.71%), and students with less knowledge amounted 45 peoples (26,95%). Students with a good knowledge about the disease free sex amounted to 22 peoples (13,17%), students with sufficient knowledge of 39 peoples (23,35%), and students with less knowledge amounted to 106 peoples (63,48%).     ABSTRAK   Seks bebas merupakan hubungan yang dilakukan oleh laki-laki dan perempuan tanpa adanya ikatan perkawinan. Berbagai bentuk tingkah laku seksual, seperti berkencan intim, bercumbu, sampai melakukan kontak seksual. Faktor-faktor yang berhubungan dengan perilaku seks bebas antara lain adalah kurangnya pengetahuan tentang seks bebas, dampak seks bebas, bentuk-bentuk seks bebas, penyimpangan LGBT, dan penyakit seks bebas. Desain penelitian ini adalah teknik pengambilan sampel menggunakan teknik kuantitatif yaitu secara tidak langsung menggunakan alat bantu angket berbentuk kuisener. Di ketahuinya gambaran pengetahuan siswa tentang seks bebas di SMA/SMK Kota Lubuk Linggau Tahun 2016. Populasi penelitian ini adalah siswa kelas XII SMA di sekolah yang ada di Kota Lubuklingga tahun 2016. Sampel pada penelitian ini adalah siswa kelas XII SMA di 9 sekolah yang ada di Kota Lubuklinggau yang berjumlah 167 orang. Hasil analisis univariat menunjukan respondent pengetahuan tentang seks bebas berjumlah 48 orang (28,74%), siswa dengan pengetahuan cukup 54 orang (32,33%), dan siswa dengan pengetahuan kurang 65 orang (38,93%). Siswa dengan pengetahuan baik tentang dampak perilaku seks bebas berjumlah 57 orang (34,13%), siswa dengan pengetahuan cukup 69 orang (41,31%), dan siswa dengan pengetahuan kurang 41 orang (24, 56%). Siswa dengan pengetahuan baik tentang bentuk perilaku seks bebas  berjumlah 58 siswa (34,73%), siswa dengan pengetahuan cukup  berjumlah 49orang (29,34%), dan siswa dengan pengetahuan kurang berjumlah 60 orang  (35,93%). Siswa dengan  pengetahuan baik tentang LGBT berjumlah 54 orang (32,34%), siswa dengan pengetahuan cukup berjumlah 68 orang (40,71%), dan siswa dengan  pengetahuan kurang berjumlah 45orang (26,95%). Siswa dengan pengetahuan baik tentang penyakit seks bebas berjumlah 22 orang (13,17%), siswa dengan pengetahuan cukup 39 orang (23,35%), dan siswa dengan pengetahuan kurang berjumlah 106 orang (63,48%).  

The Democratic Costs of Constitutionalization— The European Case

2017 ◽  
Author(s):  
Dieter Grimm
Keyword(s):  
At Risk ◽  
Economic Integration ◽  
Fundamental Rights ◽  
European Law ◽  
European Court ◽  
Political Implications ◽  
The Impact ◽  
The Relationship ◽  
The Eu

This chapter examines the democratic costs of constitutionalization by focusing on the European case. It first considers the interdependence of democracy and constitutionalism before discussing how constitutionalization can put democracy at risk. It then explores the tension between democracy and fundamental rights, the constitutionalization of the European treaties, and the European Court of Justice’s (ECJ) two separate judgments regarding the relationship between European law and national law. It also assesses the impact of the ECJ’s jurisprudence on democracy, especially in the area of economic integration. The chapter argues that the legitimacy problem the EU faces is caused in part by over-constitutionalization and that the remedy to this problem is re-politicization of decisions with significant political implications.

Global population trends in shorebirds: migratory behaviour makes species at risk

2021 ◽  
Vol 108 (2) ◽  
Author(s):  
Jaroslav Koleček ◽  
Jiří Reif ◽  
Miroslav Šálek ◽  
Jan Hanzelka ◽  
Camille Sottas ◽  
...  
Keyword(s):  
At Risk ◽  
Population Trends ◽  
Species At Risk ◽  
Migratory Behaviour ◽  
Global Population

scholarly journals Threshold Dynamics in a Model for Zika Virus Disease with Seasonality

2021 ◽  
Vol 83 (4) ◽  
Author(s):  
Mahmoud A. Ibrahim ◽  
Attila Dénes
Keyword(s):  
Zika Virus ◽  
Reproduction Number ◽  
Virus Disease ◽  
Threshold Dynamics ◽  
Global Dynamics ◽  
Threshold Parameter ◽  
Globally Asymptotically Stable ◽  
Linear Integral ◽  
The Impact ◽  
Disease Free

AbstractWe present a compartmental population model for the spread of Zika virus disease including sexual and vectorial transmission as well as asymptomatic carriers. We apply a non-autonomous model with time-dependent mosquito birth, death and biting rates to integrate the impact of the periodicity of weather on the spread of Zika. We define the basic reproduction number $${\mathscr {R}}_{0}$$ R 0 as the spectral radius of a linear integral operator and show that the global dynamics is determined by this threshold parameter: If $${\mathscr {R}}_0 < 1,$$ R 0 < 1 , then the disease-free periodic solution is globally asymptotically stable, while if $${\mathscr {R}}_0 > 1,$$ R 0 > 1 , then the disease persists. We show numerical examples to study what kind of parameter changes might lead to a periodic recurrence of Zika.

scholarly journals Food Insecurity in the United States: Identification, Treatment, and Implications

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 772-773
Author(s):  
Rose Ann DiMaria-Ghalili ◽  
Connie Bales ◽  
Julie Locher
Keyword(s):  
United States ◽  
Older Adults ◽  
At Risk ◽  
Food Insecurity ◽  
Well Being ◽  
The United States ◽  
Health Clinic ◽  
High Risk Population ◽  
Geriatric Syndrome ◽  
The Impact

Abstract Food insecurity is an under-recognized geriatric syndrome that has extensive implications in the overall health and well-being of older adults. Understanding the impact of food insecurity in older adults is a first step in identifying at-risk populations and provides a framework for potential interventions in both hospital and community-based settings. This symposium will provide an overview of current prevalence rates of food insecurity using large population-based datasets. We will present a summary indicator that expands measurement to include the functional and social support limitations (e.g., community disability, social isolation, frailty, and being homebound), which disproportionately impact older adults, and in turn their rate and experience of food insecurity and inadequate food access. We will illustrate using an example of at-risk seniors the association between sarcopenia, the age-related loss of muscle mass and function, with rates of food security in the United States. The translational aspect of the symposium will then focus on identification of psychosocial and environmental risk factors including food insecurity in older veterans preparing for surgery within the Veterans Affairs Perioperative Optimization of Senior Health clinic. Gaining insights into the importance of food insecurity will lay the foundation for an intervention for food insecurity in the deep south. Our discussant will provide an overview of the implications of these results from a public health standpoint. By highlighting the importance of food insecurity, such data can potentially become a framework to allow policy makers to expand nutritional programs as a line of defense against hunger in this high-risk population.

scholarly journals The impact of the COVID-19 pandemic on wellbeing and cognitive functioning of older adults

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sarah De Pue ◽  
Céline Gillebert ◽  
Eva Dierckx ◽  
Marie-Anne Vanderhasselt ◽  
Rudi De Raedt ◽  
...  
Keyword(s):  
Mental Health ◽  
Older Adults ◽  
At Risk ◽  
Sleep Quality ◽  
Cognitive Functioning ◽  
Online Survey ◽  
Activity Level ◽  
The Impact

AbstractCOVID-19 took a heavy toll on older adults. In Belgium, by the end of August, 93% of deaths due to COVID-19 were aged 65 or older. Similar trends were observed in other countries. As a consequence, older adults were identified as a group at risk, and strict governmental restrictions were imposed on them. This has caused concerns about their mental health. Using an online survey, this study established the impact of the COVID-19 pandemic on adults aged 65 years or older, and which factors moderate this impact. Participants reported a significant decrease in activity level, sleep quality and wellbeing during the COVID-19 pandemic. Depression was strongly related to reported declines in activity level, sleep quality, wellbeing and cognitive functioning. Our study shows that the COVID-19 pandemic had a severe impact on the mental health of older adults. This implies that this group at risk requires attention of governments and healthcare.

European Respiratory Society Statement on Sleep Apnoea, Sleepiness and Driving Risk

2020 ◽  
pp. 2001272
Author(s):  
Maria R Bonsignore ◽  
Winfried Randerath ◽  
Sofia Schiza ◽  
Johan Verbraecken ◽  
Mark W Elliott ◽  
...  
Keyword(s):  
At Risk ◽  
Motor Vehicle ◽  
Task Force ◽  
Present Report ◽  
Sleep Apnoea ◽  
Accident Risk ◽  
European Respiratory Society ◽  
Obstructive Sleep ◽  
Patients At Risk ◽  
The Impact

Obstructive sleep apnoea (OSA) is highly prevalent and is a recognised risk factor for motor vehicle accidents (MVA). Effective treatment with continuous positive airway pressure (CPAP) has been associated with a normalisation of this increased accident risk. Thus, many jurisdictions have introduced regulations restricting the ability of OSA patients from driving until effectively treated. However, uncertainty prevails regarding the relative importance of OSA severity determined by the apnoea-hypopnoea frequency per hour and the degree of sleepiness in determining accident risk. Furthermore, the identification of subjects at risk for OSA and/or accident risk remains elusive. The introduction of official European regulations regarding fitness to drive prompted the European Respiratory Society to establish a Task Force to address the topic of sleep apnoea, sleepiness and driving with a view to providing an overview to clinicians involved in treating patients with the disorder. The present report evaluates the epidemiology of MVA in patients with OSA, the mechanisms involved in this association, the role of screening questionnaires, driving simulators and other techniques to evaluate sleepiness and/or impaired vigilance, the impact of treatment on MVA risk in affected drivers, and highlights the evidence gaps regarding the identification of OSA patients at risk for MVA.

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