scholarly journals Unravelling the impact of anthropogenic pressure on plant communities in Mediterranean temporary ponds

2014 ◽  
Vol 65 (10) ◽  
pp. 918 ◽  
Author(s):  
Siham Bouahim ◽  
Laila Rhazi ◽  
Btissam Amami ◽  
Aline Waterkeyn ◽  
Mouhssine Rhazi ◽  
...  

Identifying the respective role of environmental, landscape and management factors in explaining the patterns in community composition is an important goal in ecology. Using a set of 32 temporary ponds in northern Morocco we studied the respective importance of local (within the pond) and regional (density of ponds in landscape) factors and the impacts of different land uses on the plant species assemblages, separating pond and terrestrial species. The main hypotheses tested were that (1) species assemblages respond to both local and regional environmental factors, (2) anthropogenic pressure has a negative influence on the number of pond species, and that (3) human activities differ in their impact on pond biodiversity. The results showed that (1) local factors explain most of the variation in plant community composition, and (2) land use impacts the communities through changing local environmental conditions, leading to a loss of typical pond species. Aside from recreation, all other activities (grazing, drainage, agriculture and partial urbanisation) significantly reduced the number of pond species. The conservation strategy for rare pond species should focus on maintaining networks of oligotrophic ponds, while allowing only low-impact activities.

2021 ◽  
Vol 247 ◽  
pp. 01068
Author(s):  
E. Y. Dotsenko ◽  
N. P. Ezdina ◽  
A. Sh. Khasanova ◽  
M. I. Khasanov

The article presents an analysis of alternative theories of ecological and economic development. The authors formulate the role of the environmental factor in socio-economic development, taking into account the ideas of alternative economic schools and trends. The paper analyzes the problems of preserving the environment as the basis of human life. This takes into account the nature of the impact of anthropogenic pressure on natural complexes and objects, due to increased consumption, excessive withdrawal of renewable natural resources that exceed the rate of natural recovery, a reduction in the reserves of non-renewable natural resources, as well as an increase in the population. At the same time, the article focuses on the problems of sustainable, balanced, harmonious development of production and social systems.


2019 ◽  
Vol 37 (4) ◽  
pp. 695-712 ◽  
Author(s):  
Michela Matarazzo ◽  
Riccardo Resciniti ◽  
Biagio Simonetti

Purpose Building on the scant literature on cross-border acquisitions (CBAs) in the consumer perspective, the purpose of this paper is to investigate the impact of the acquirer’s cause-related marketing (CRM) on consumers’ repurchase intentions of the products of the post-acquisition target. In addition, the study aims at analyzing the moderating role of acquirer’s CRM on the relationship between corporate ability (CA) and country image (CI) on consumers’ repurchase intentions of the products of the post-acquisition target. Design/methodology/approach Drawing on a sample of Italian consumers (n=351), the authors examined the roles played by the acquirer’s CRM on consumer behaviour by considering an Italian target firm with a high reputation and comparing eight foreign acquiring firms with different combinations of CRM (poor/good), CA (poor/good) and CI (high/low). Findings The authors found that CRM, CA as well as CI have a significant impact on Italian consumers’ intention to repurchase the products of the post-acquisition target. Furthermore, it is shown that good CRM reduces the negative influence of a poor CA and a low CI on post-acquisition repurchase intentions and strengthen the positive influence, thus confirming the moderating role of CRM. Originality/value The research investigates, in the context of CBAs, the impact of the acquirer’s CRM on the host country consumers’ repurchase intentions after the CBA, which has not previously been examined. It can help managers to understand the conditions under which CBAs will be favourably evaluated.


2019 ◽  
Vol 11 (18) ◽  
pp. 4826 ◽  
Author(s):  
Feiran Dong ◽  
Yongzhen Xie ◽  
Linjun Cao

Green governance is the only way to build a community for humankind with a shared future. Existing research has concentrated more on the macro level rather than the micro level of green governance—the power hierarchy of the governance subjects and its influence on decision-making and the implementation of green governance. The board of directors is the main green governance body, and the consciousness and conducts of the green governance of board members are determined by corporate mission. As a result, we explored the mechanism of the impact of board power hierarchy on green governance performance through the influence of green governance conduct. To interpret this mechanism, we introduced relational contract theory and conducted an empirical analysis. The results show that board power hierarchy negatively affects green governance conduct. Corporate mission restrains the board power hierarchy’s negative influence on green governance conduct, showing that board power structure has a significantly positive effect on green governance performance through the mediator of green governance conduct. Therefore, the positive role of corporate mission is identified.


Author(s):  
Maxim B. Khomyakov

The chapter is devoted to the analysis of the impact of the global academic rankings and the concept of world-class university upon the system of high education both globally and in contemporary Russia. The author analyses the use of the rankings in benchmarking and strategy planning, and demonstrates negative influence of the obsession with the rankings in some countries. The chapter considers the case of the strategy of Ural Federal University (Russia) as one of the examples of both use and abuse of the rankings in large regional Russian university. The author argues for the necessity of organizing transnational associations and consortia of the universities, especially in emerging countries (BRICS nations, for example), to resist neo-Imperial features of today's global Academia. One of the remedies the chapter proposes is to adopt the idea of plural modernities from sociology and to treat global education environment as kind of a multi-polar world. Then, the author argues, the rankings should be supplemented with qualitative comparative analysis of educational systems.


2018 ◽  
Vol 44 (1) ◽  
pp. 50-69 ◽  
Author(s):  
Edwin Trevor-Roberts ◽  
Polly Parker ◽  
Jorgen Sandberg

Despite increased uncertainty in the environment, the role of uncertainty in people’s careers is poorly understood. Those few theories that account for uncertainty portray it as a negative influence on people’s career and should therefore be reduced or avoided. This article presents an empirical study that investigated the impact of uncertainty on people’s career behaviour using a narrative approach. The findings reveal that people have different understandings of career uncertainty, which leads to distinct differences in subsequent career behaviour. Specifically, we identified four qualitatively different meanings of career uncertainty we have called Stabiliser, Glider, Energiser and Adventurer. The findings add to the existing literature by showing how each meaning of career uncertainty affects career decision making, criteria to gauge career success and meaning, and negotiating transitions. This significantly broadens current conceptualisation of career uncertainty and its impact on career behaviour than existing literature. JEL Classification: M10, M50, L10


2018 ◽  
Vol 46 (10) ◽  
pp. 1713-1726
Author(s):  
Zhi-Hui Ding ◽  
Hua-Cheng Li ◽  
Lei Quan ◽  
Hua-Qiang Wang

We constructed a research model based on the social cognitive and social exchange theories to investigate the relationship between supervisor narcissism and employee prohibitive voice. We focused on the mediating role of employee voice efficacy and the moderating role of supervisor–subordinate guanxi. We recruited enterprise employees in China and their direct supervisors (231 supervisor–subordinate dyads) as participants, who completed a 2-wave survey. The results showed a significantly negative relationship between supervisor narcissism and employee prohibitive voice, and the relationship was mediated by employee voice efficacy. Supervisor–subordinate guanxi negatively moderated the relationship between supervisor narcissism and employee voice efficacy. Thus, organizational executive staff should manage conditions to reduce the negative influence of supervisor narcissism, thereby promoting employee prohibitive voice.


Oryx ◽  
2015 ◽  
Vol 50 (2) ◽  
pp. 244-249 ◽  
Author(s):  
Nishikant Gupta ◽  
Arun Kanagavel ◽  
Parineeta Dandekar ◽  
Neelesh Dahanukar ◽  
Kuppusamy Sivakumar ◽  
...  

AbstractIndigenous communities worldwide have long relied on their environment for survival. Religious and customary beliefs that foster community conservation have not only bound these communities to ecosystems but also assisted in the conservation of species. We provide an example of how religion fosters the conservation of freshwater fishes in India. Since ancient times rural communities in India have revered fish species as symbols of divine power, and offered them protection in pools associated with temples. Such voluntary, informal institutions and arrangements continue to help conserve several freshwater fish species that are otherwise subjected to anthropogenic pressure in open-access areas. However, religious beliefs in India are waning as a result of increased urbanization, modernization of societies and disintegration of rural communities, and the sustainability of existing temple and community fish sanctuaries is questionable. We discuss the role of temple sanctuaries as an informal conservation strategy for freshwater fishes, and discuss the knowledge and policy gaps that need to be addressed for ensuring their future.


2019 ◽  
Vol 11 (11) ◽  
pp. 3229 ◽  
Author(s):  
Sunhee Kim ◽  
Jaesun Wang

This study aims to examine the degree of direct or indirect impact of quality and quantity of government on public health. It is a very important topic in that previous studies did not consider the role of government; they focused on the impact of national economic, social, and political factors on public health, therefore, disregarding the governmental factors. We measured the quantity of government by public expenditure on heath (i.e., rate of share of government budget to gross domestic product (GDP)) and the quality of government by five variables such as corruption control, government effectiveness, regulatory quality, voice and accountability, and rule of law. Based on national-level panel data (three waves) that covered 148–194 countries, we examined how quality and quantity of government has an impact on four kinds of public health, i.e., infant mortality, under-five mortality, maternal mortality, and life expectancy. Results show that both the quality and quantity of government had a significant impact on public health. In the quality of government, government effectiveness has a positive impact on life expectancy and a negative influence on infant deaths. Moreover, the quality of government has a greater impact on public health than the quantity of government. Lastly, the quality of government plays a role in moderating the relationships between quantity of government and the predicted variables.


2017 ◽  
Vol 34 (7) ◽  
pp. 624-635 ◽  
Author(s):  
Marine Kergoat ◽  
Thierry Meyer ◽  
Alain Merot

Purpose The present study aims to further examine the persuasive effect of pictures in a print ad according to the recipient’s ability to process the information and to observe to what extent the presence of a picture could negatively influence recipients’ attitude toward the ad’s verbal claim. Design/methodology/approach Two studies were designed to manipulate the presence vs absence of an attractive/unattractive picture, the kind of verbal claims (affectively based vs rationally based) and the recipient’s ability to process the ad (cognitive load vs no cognitive load). Findings Main findings showed that the presence of an attractive picture elicited an unfavorable attitude toward the functional verbal claim when recipients were not cognitively charged. Furthermore, it proved to be a mediator of the influence of pictures on attitude toward the ad. The positive influence of an attractive picture on product evaluation and purchase intention was greater under a cognitive load but showed contrasting results for price perceptions. For the unattractive picture, cognitive load was found to be a moderator only when recipients had to infer the product price. Research limitations/implications The present research emphasized the negative influence of attractive pictures on functional verbal claims and the moderating role of cognitive load on pictorial stimuli either acting as peripheral or central cues in the persuasive process. Practical implications Practitioners may want to consider that an attractive picture in advertising is not always the best route for persuasion, especially when the verbal ad content emphasizes the product’s properties. Originality/value The present study provides new insights regarding the role of pictures in advertising persuasive effectiveness. Until now, no research had addressed the extent to which the presence of a picture could affect processing of an ad’s verbal claims. Additionally, the present study expands research on persuasive communication and affirms the necessity of more intensively investigating the role of pictures in advertising under the rubric of information processing level.


Author(s):  
Mahamudul Hasan

The purpose of this paper is to investigate the impact of cognitive and affective attitude on repurchase intention of mobile handsets of Bangladeshi consumers with the mediating role of innovatism, materialism, and self-uniqueness. The researchers collected survey data using simple random sampling method from selected areas of Barisal division. Total number of respondents of the study is 264. The results of this study showed that cognitive and affective components of attitude have a significant impact on repurchase intentions of mobile handsets in Bangladesh which is partially and fully mediated by innovatism and self-uniqueness. However, materialism has no mediation on the impact of cognitive and affective attitude on purchase intention. The study also shows that innovatism has negative influence on repurchase intention, but self-uniqueness and materialism has significant positive influence.


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