Post-fire recolonisation of a montado area by the endangered Cabrera vole (Microtus cabrerae)

2007 ◽  
Vol 16 (4) ◽  
pp. 450 ◽  
Author(s):  
Inês T. do Rosário ◽  
Maria da Luz Mathias

The Cabrera vole is an endangered species frequently found in the montado, a savannah-like ecosystem well adapted to fire. Although it is assumed that regular burning is not very prejudicial to this vole, the impact of fire is unknown. This research studied, for the first time, recolonisation by the Cabrera vole after wildfire. Colonies were monitored over one year after a wildfire and the most relevant ecological features in their reestablishment were identified. During the first eight months, all the 18 surveyed colonies remained unoccupied. However, after one year, 11 were recolonised. Vegetation structure and composition in the colonies (vegetation height, plant families diversity, percentage of bare ground and cover of shrubs before the fire), which are important features in offering protection and nutrition, were closely related to reoccupation of the colonies. Surprisingly, fire intensity did not influence recolonisation. Distance from unburned areas proved to be a factor that delayed recolonisation. The importance of the montado for this species was reinforced by the evidence that recolonisation occurred preferentially in colonies surrounded by this habitat type.

Viruses ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1687 ◽  
Author(s):  
John Charles Rotondo ◽  
Fernanda Martini ◽  
Martina Maritati ◽  
Chiara Mazziotta ◽  
Giulia Di Mauro ◽  
...  

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a newly discovered coronavirus responsible for the coronavirus disease 2019 (COVID-19) pandemic. COVID-19 has rapidly become a public health emergency of international concern. Although remarkable scientific achievements have been reached since the beginning of the pandemic, the knowledge behind this novel coronavirus, in terms of molecular and pathogenic characteristics and zoonotic potential, is still relatively limited. Today, there is a vaccine, or rather several vaccines, which, for the first time in the history of highly contagious infectious diseases that have plagued mankind, has been manufactured in just one year. Currently, four vaccines are licensed by regulatory agencies, and they use RNA or viral vector technologies. The positive effects of the vaccination campaign are being felt in many parts of the world, but the disappearance of this new infection is still far from being a reality, as it is also threatened by the presence of novel SARS-CoV-2 variants that could undermine the effectiveness of the vaccine, hampering the immunization control efforts. Indeed, the current findings indicate that SARS-CoV-2 is adapting to transmission in humans more efficiently, while further divergence from the initial archetype should be considered. In this review, we aimed to provide a collection of the current knowledge regarding the molecular, phylogenetic, and pathogenetic insights into SARS-CoV-2. The most recent findings obtained with respect to the impact of novel emerging SARS-CoV-2 variants as well as the development and implementation of vaccines are highlighted.


2017 ◽  
Vol 14 (2) ◽  
pp. 17-28 ◽  
Author(s):  
Vikram Desai ◽  
Joung W. Kim ◽  
Rajendra P. Srivastava ◽  
Renu V. Desai

ABSTRACT The primary objective of this paper is to employ search engine technology to investigate the relationship between first-time going concern opinions (GCOs) and the financial viability of the GCO recipients using delisting as a criterion rather than bankruptcy. The paper also investigates the impact of client distress factors on auditors' propensity to issue GCOs. The search engine enables us to examine the entire population of 10-K filings from 1995 to 2015 and also to obtain delisting data, which are not readily available in commercial databases. Contrary to prior research, we find that the survival rate of first-time GCOs is much lower when we use delisting as a measure of financial viability. Around 26 percent of the companies that receive their first GCOs are delisted within a period of one year of the audit opinion date, and 50 percent of the companies that receive their first GCOs are delisted within a period of three years. The bankruptcy rate of first-time GCO companies within one year is around 9 percent. Such evidence may prove useful to the PCAOB's effort to expeditiously assess the intended benefit of GCOs. In addition, we find that the propensity of auditors to issue GCOs varies for each distress factor.


2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Damiano C Weitowitz ◽  
Chris Panter ◽  
Rachel Hoskin ◽  
Durwyn Liley

Abstract New housing development can result in impacts on nearby protected nature conservation sites, even if development is outside the site boundary. High levels of housing may be associated with adverse impacts on ecological features in protected sites from increased recreation pressure. However, few studies have investigated the spatial link between housing and visitor numbers. An understanding of the impact of housing on visitor use, especially the distances at which housing relates to recreation levels and the importance of other factors (e.g. parking provision) is essential to inform the assessment of new housing and is relevant to strategic planning of development within the UK. We use a long-term visitor dataset (2003–8) to disentangle the housing–visitor association at foot-only and parking locations on important nature conservation sites. We conclude with negative binomial regressions that model the effect of housing on visitor numbers, while controlling for habitat, parking provision and season. Our results demonstrate that more housing consistently means more visitors to protected sites, across most habitats. This is particularly the case for on-foot visitors that originate from housing within 1.5 km, highlighting that additional housing development in proximity to protected sites is likely to significantly increase recreation pressure. For visitor numbers at parking locations, levels of housing within 15 km of protected sites were also a significant predictor, but depended on habitat type. These results demonstrate that housing allocations closer to protected sites are likely to have a greater impact in terms of visitor numbers and may help underpin future assessments of strategic plans.


2020 ◽  
Vol 8 ◽  
Author(s):  
Pernille Kold Munch ◽  
Marie Birk Jørgensen ◽  
Helene Højberg ◽  
Charlotte Diana Nørregaard Rasmussen

In this study, we evaluated the dissemination of a digital checklist for improving implementation of work environment initiatives in the Danish eldercare sector. We evaluated the impact of the checklist using the RE-AIM framework. Initiated in 2016, researchers and relevant stakeholders were responsible for disseminating the checklist to all workplaces in the eldercare sector in Denmark through a national campaign. The checklist guided the user to define an action plan to implement, and the checklist covered 11 implementation concept points that should be addressed to reach full implementation of the action in focus. One year after the launch of the campaign almost all municipalities in Denmark had visited the website hosting the checklist (96%), 17% of individual workers within the eldercare responding to a union survey was reached, 4% (n = 199) of all eligible eldercare workplaces in Denmark and 8% of all nursing homes had adopted the checklist. Of the workplaces that used the checklist, 46% typed an action in the checklist. There were 13% of the first time users that used the checklist twice and 29% of the actions were revised (maintenance) after working with the implementation. Finally, the workplaces that had used the checklist showed a higher prioritization of work environment compared to workplaces not using the checklist both at baseline and at follow up. In conclusion, this study employing various strategies, including a 1-year national campaign to disseminate a checklist shows potential to impact implementation of work environment initiatives in the Danish eldercare sector. While dissemination is satisfactory and likely to increase further with time, more efforts is needed to ensure maintenance.


1985 ◽  
Vol 146 (1) ◽  
pp. 77-80 ◽  
Author(s):  
R. G. McCreadie ◽  
M. McCormick ◽  
D. P. Morrison

SummaryA review in South-West Scotland of all patients prescribed lithium for the first time during the years 1972–82 showed that on average, 12 per 100,000 of the general population start this drug each year. By the end of the period, lithium had been stopped in 58% of patients; the most common reason for discontinuation was the development of side-effects, of which tremor was the most frequent. In only 15% was lithium stopped as it was considered no longer necessary; 44% of patients discontinued lithium within one year of starting it.


Author(s):  
О. Б. Ткаченко ◽  
О. І. Пашковський ◽  
О. О. Кована ◽  
Є. М. Юрченко

Мета статті - дослідити залежність накопичення монотерпенів у ягодах винограду сортів Ароматний та Загрей від вибору системи формування кущів. Методика дослідження. Схема експерименту включала 4 системи штамбових кордонних формувань, що відрізнялися за висотою штамба (40, 80, 120, 160 см) та способом ведення однорічного приросту (вертикальне чи вільне). Температуру грон у період дозрівання винограду вимірювали за допомогою безконтактного пірометра. Концентрацію монотерпенів у винограді визначали методами парової дистиляції та газової хроматографії. Результати дослідження. При вивченні температурного режиму грон у період дозрівання винограду встановлено, що найвищим значенням показника протягом дня характеризувалися грона низькоштамбових, а найнижчим - високоштамбових кущів. Визначено доцільність високоштамбових формувань кущів сорту Ароматний для реалізації ароматичного потенціалу винограду. Застосування такого агротехнічного прийому дозволило отримати сировину з найвищою концентрацією вільної та зв’язаної фракції монотерпенів. Як основний компонент в обох фракціях було ідентифіковано ліналоол.  Так само для сорту Загрей при формуванні кущів на низьких штамбах зафіксовано найвище накопичення зв’язаної фракції монотерпенів. У розрізі окремих компонентів у такій фракції превалювали гераніол, ліналоол та бета-цитронелол. Методами кореляційного та регресійного аналізу виявлено зв'язок між загальним накопиченням зв’язаної фракції монотерпенів і окремих її компонентів, ліналоолу (сорт Ароматний) та бета-цитронелолу (сорт Загрей), та температурним режимом грон у період дозрівання винограду. Елементи наукової новизни. Вперше в Україні вивчено вплив систем формування кущів на склад монотерпенів винограду. Встановлено доцільність диференційованого в розрізі сортів вибору агротехніки для реалізації їх ароматичного потенціалу. Практична значущість. Одержані результати можуть застосовуватися у промисловому виноградарстві при створенні нових насаджень сортів Ароматний та Загрей з метою отримання високоякісної сировини для виноробства. The aim of the article is to study the dependence of accumulating monoterpenes in grape berries of Aromatnyi and Zagrey varieties on the choice of bush forming systems. The methods of research. The scheme of the experiment included 4 systems of stem boundary formations that differed in height (40, 80, 120, 160 cm) and the method of keeping one-year growth (vertical or non-positioned). The temperature of bunches during grape ripening period was measured, using a contactless pyrometer. The concentration of monoterpenes in grapes was determined by means of steam distillation and gas chromatography. The results of the study. Studying the temperature regime of bunches during grape ripening period, we established that bunches of low-stemmed bushes were characterized by the highest index value during the day, while the bunches of high-stemmed bushes – by the lowest one. The expediency of high-stemmed bush formations of Aromatnyi variety for realizing the grape aromatic potential has been determined. The using of this viticulture practice enabled to obtain raw product with the highest concentration of free and bound fraction of monoterpenes. Linalool was identified as the main component in both fractions. Similarly, for Zagrey variety, during bush forming on low stems, the highest accumulation of the bound fraction of monoterpenes was recorded. Geraniol, linalool and beta-citronellol prevailed in separate components of this fraction. Using the methods of correlation and regression analysis the connection between the total accumulation of monoterpenes’ bound fraction and its separate components, linalool (Aromatnyi variety) and beta-citronellol (Zagrey variety) and the temperature of bunches during the ripening period was established. The elements of scientific novelty. For the first time in Ukraine, the impact of bush forming systems on grape monoterpenes composition has been studied. The expediency of differentiated choosing viticulture practices in the context of varieties for the realization of their aromatic potential has been established. Practical significance. The results can be used in industrial viticulture when creating new plantations of Aromatnyi and Zagrey varieties in order to obtain high-quality raw product for winemaking.


2020 ◽  
Vol 62 ◽  
pp. 32-38
Author(s):  
E. A. Dolmatov ◽  
R. B. Borzayev ◽  
A. N. Shaipov

The results of the study of the duration of the juvenile period of indigenous Chechen willow leaf pear genotypes (Pyrus salicifolia Pall.) are given in connection with the acceleration of the breeding process and the use of selected forms in pear breeding for high precocity. The studies were carried out in 2016-2019 at OOO “Orchards of Chechnya” in accordance with the Agreement on creative cooperation with the Russian Research Institute of Fruit Crop Breeding. The work was carried out in accordance with generally accepted programs and methods. The objects of the study were one-year and two-year-old pear seedlings obtained from sowing seeds of selected dwarf and low-growing local Chechen forms of willow pear (P. salicifolia Pall.), laying fruit buds on annual growths and seedlings of Caucasian pear (P. caucasica Fed.), 20 500 pcs. of each specie. The aim of the research was to study the potential of precocity of willow pear seedlings and to reveal of selected forms with the greatest degree of this trait. Stratified seeds were sown in the sowing department of the OOO “Orchards of Chechnya” production nursery in April, 2017. The seedlings were grown according to the common technology in dryland conditions on the plot with chestnut soil. The first fl owering of plants was noted in the spring, 2019. As a result of the research, for the first time on a large number of the experimental material it was found that in the off spring of the indigenous Chechen willow leaf pear genotypes, the selection of a little more than 2% of seedlings with a very short juvenile period (2 years) was possible. They are of great interest in accelerating the breeding process and in the selection of new pear varieties with high precocity. 20 willow leaf pear genotypes were selected for the further use in breeding for high precocity and as sources of the trait of short juvenile period.


2019 ◽  
Vol 12 (2) ◽  
Author(s):  
Bibi Tahira ◽  
Naveed Saif ◽  
Muhammad Haroon ◽  
Sadaqat Ali

The current study tries to understand the diverse nature of relationship between personality Big Five Model (PBFM) and student's perception of abusive supervision in higher education institutions of Khyber Pakhtoonkhwa Pakistan. Data was collected in dyads i.e. (supervisors were asked to rate their personality attributes while student were asked to rate the supervisor behavior) through adopted construct. For this purpose, data was collected from three government state universities and one Private Sector University. The focus was on MS/M.Phill and PhD student and their supervisors of the mentioned universities. After measuring normality and validity regression analysis was conducted to assess the impact of supervisor personality characteristics that leads to abusive supervision. Findings indicate interestingly that except agreeableness other four attributes of (PBFM) are play their role for abusive supervision. The results are novel in the nature as for the first time Neuroticism, openness to experience, extraversion and conscientiousness are held responsible for the abusive supervision. The study did not explore the demographic characteristics, and moderating role of organizational culture, justice and interpersonal deviances to understand the strength of relationship in more detail way. Keywords: Personality big five model, abusive supervision, HEIs


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