scholarly journals Positive and Negative Impacts of Non-Native Bee Species around the World

Insects ◽  
2016 ◽  
Vol 7 (4) ◽  
pp. 69 ◽  
Author(s):  
Laura Russo
Insects ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 545
Author(s):  
Sara Straffon Díaz ◽  
Luca Carisio ◽  
Aulo Manino ◽  
Paolo Biella ◽  
Marco Porporato

Megachile sculpturalis (Smith, 1853) is the first exotic bee species in Europe. Its remarkably fast expansion across this continent is leading to a growing concern on the extent of negative impacts to the native fauna. To evaluate the interactions of exotic bees with local wild bees, we set up trap nests for above-ground nesting bees on a semi-urban area of north-western Italy. We aimed to investigate the interaction in artificial traps between the exotic and native wild bees and to assess offspring traits accounting for exotic bee fitness: progeny sex ratio and incidence of natural enemies. We found that the tunnels occupied by exotic bees were already cohabited by O. cornuta, and thus the cells of later nesting alien bees may block the native bee emergence for the next year. The progeny sex ratio of M. sculpturalis was strongly unbalanced toward males, indicating a temporary adverse population trend in the local invaded area. In addition, we documented the presence of three native natural enemies affecting the brood of the exotic bee. Our results bring out new insights on how the M. sculpturalis indirectly competes with native species and on its performance in new locations.


2021 ◽  
Vol 10 (3) ◽  
pp. 396
Author(s):  
Anang Fathoni ◽  
Ali Mustadi ◽  
Wahyu Kurniawati

The emergence of Covid-19 has had a significant influence on the world of education. Even though the emergence of Covid-19 has accelerated the integration of technology in learning, there are still negative classroom learning impacts. This study aims to explore student experience in online learning in the Covid-19 Pandemic period; describe the negative impacts and obstacles that arise in online learning; and describe student strategies in online learning. This research is qualitative in the type of case studies. Data were collected through open questionnaires and interviews with participants of 20 students. Data analysis was accomplished with Bogdan and Biklen models through reduction, searching for sub-themes, and seeking relationships between sub-themes to obtain the conclusion. The results of this study show that learning in the Covid-19 pandemic period has not been fully optimally done. In addition, students also get physical and mental impacts during online learning. Furthermore, students get barriers to signals, learning environment, and learning activities with lecturers online. However, students have a varied learning strategy to minimize obstacles and negative impacts of online learning.


2020 ◽  
Vol 1 (1) ◽  
pp. 7-10
Author(s):  
Aslan Riyadh

Technological advances due to the rapid flow of globalization, change the pattern of teaching in the world of education. The philosophy of education shows a vertical relationship, up or down with the branches of education. It is hoped that the public can better understand the importance of globalization so that the negative impacts that have an impact can be minimized and it is also hoped that the realization of positive activities towards education will be even better. Education contributing to the success of development in the agricultural sector is not solely determined by development in the technology sector but is determined by the development of the quality of human resources, aspects of human personality, which include knowledge, values, attitudes and skills. The influence of globalization encourages education in the agricultural sector to be increasingly encouraged by stakeholders to always be improved so that the agricultural sector becomes more productive.


2010 ◽  
Vol 10 (4) ◽  
pp. 205-213 ◽  
Author(s):  
Silvana Masciadri ◽  
Ernesto Brugnoli ◽  
Pablo Muniz

In Uruguay, as well as in other regions of the world, IAS cause negative impacts on natural and managed ecosystems. The use of databases is a helpful tool to elaborate different strategies for prevention and control, and to develop policies and scientific analyses related to IAS. The database of IAS in Uruguay (InBUy) was developed during two time periods (2006-2007 and 2009-2010). It currently contains information on 33 specialists of different taxonomic groups, 14 research projects, 185 references, 351 species and 4,715 records, with vascular plants having both the highest number of species and records. Among vascular plants, herbaceous life forms are the most strongly represented, followed by trees and shrubs. Within animals, the fishes and mollusks are the most important groups. Analysis of the native distribution areas of IAS showed that most are indigenous from Europe, followed by Asia and Oceania. Data showed that introductions of IAS into Uruguay are mainly intentional (67%), so efforts should be focused on policies and rules in order to control the entrance of exotic organisms and prevent new invasions. The geography of the compiled dataset shows the main impact is along the coastline, where the highest exotic species richness and records occurs, and also the most biological invasions. The InBUy database is up-to-date and has successfully contributed to the creation of an official IAS list for Uruguay and both a National and a Coastal Geographic Information System. It has also been used for developing consciousness about this important threat to biodiversity, at both national and regional scales.


2021 ◽  
Vol 5 (1) ◽  
pp. 45-54
Author(s):  
Imam Riadi ◽  
Rusydi Umar ◽  
Muhammad Irwan Syahib

Viber is one of the most popular social media in the Instant Messenger application category that can be used to send text messages, make voice calls, send picture messages and video messages to other users. As many as 260 million people around the world have used this application. Increasing the number of viber users certainly brings positive and negative impacts, one of the negative impacts of this application is the use of digital forensic crime. This research simulates and removes digital crime evidence from the viber application on Android smartphones using the National Institute of Standards Technology (NIST) method, which is a method that has work guidelines on forensic policy and process standards to ensure each investigator follows the workflow the same so that their work is documented and the results can be accounted for. This study uses three forensic tools, MOBILedit Forensic Express, Belkasoft and Autopsy. The results in this study show that MOBILedit Forensic Express gets digital evidence with a percentage of 100% in getting accounts, contacts, pictures and videos. While proof of digital chat is only 50%. Belkasoft gets digital evidence with a percentage of 100% in getting accounts, contacts, pictures and videos. While proof of digital chat is only 50%. For Autopsy does not give the expected results in the extraction process, in other words the Autopsy application gives zero results. It can be concluded that MOBILedit Forensic Express and Belkasoft have a good performance compared to Autopsy and thus this research has been completed and succeeded in accordance with the expected goals.


2012 ◽  
Vol 11 ◽  
pp. 31-35
Author(s):  
Suresh Man Shrestha

The Himalayan Range is a young mountain system of the world and about 83% of the total area of Nepal is covered by high hills and mountains. Major river systems of Nepal originate from the glaciers and are perennial in nature. According to the preliminary results of the Census 2011, more than 50% of total population live in Terai and are vulnerable to flood. Since Nepal falls under the seismically active zone earthquake has been one of the major disasters experienced in the country. Fire, Glacier Lake Outburst Flood, lightening, hail storm are some other natural disaster claiming lives of Nepalese people. It is not possible to stop disasters, but the consolidated effort of different organization may make us better prepared to overcome the negative impacts of such disasters. This article tries to explore the role of Survey Department in this context.


2021 ◽  
Vol 36 (1) ◽  
pp. 83-92
Author(s):  
A.A. Garba

The paper reviewed the impacts of population growth and the ways it affects aquaculture and fisheries prices. As the world population  continues to grow arithmetically, great pressure is placed on arable lands, water, energy, and biological resources to provide an adequate supply of food while maintaining the integrity of the ecosystem. In 2010, FAO projected the world population to double from 6.2 billion in October, 1999 to 12.5 billion in the year 2050. This had created serious negative impacts on the aquaculture and fisheries prices. At present fertile crop lands had been lost at an alarming rates while some abandoned during the past 50 years because erosions made it unproductive. Other vices such as food crisis, political unrest and war (Mexico, Uzbekistan, Turkistan, Yemen, Iraq, Afghanistan, Syria, Morocco and Sudan), civil strife and multiple years of draught (Niger, Mauritania and Senegal), impacts of HIV/AIDS Ebola, Lassa fever and Coronavirus the world over, clashes between cattle rearers and farmers and boko haram issues (Nigeria) as well as kidnapping and  corruptions have severely affected aquaculture and fisheries production and accompanied prices. Thus, this review was conducted to raise a cry for farmers and citizens to engage and participate in intensive culture and fisheries practices in order to fill the demand - supply gap so as to make fish food products available for the teeming masses.


Author(s):  
María de los Angeles Huízar Sánchez ◽  
Jorge Luis López Ramos ◽  
José Alfonso Baños Francia

The collaborative lodging has expanded globally, driven by companies that through digital platforms enlist the properties of individuals to integrate them into the market of tourist accommodation, a situation that has generated wide socio-economic and territorial problems in the main tourist destinations in the world. This chapter analyzes who receives the benefits of the collaborative lodging, as well as the negative impacts it generates in Puerto Vallarta, through an analysis of the behavior of the offer, as well as in-depth interviews with hosts registered in the Airbnb platform.


2018 ◽  
Vol 13 (7) ◽  
pp. 45
Author(s):  
Sascha Sardadvar

Governments around the world are providing various forms of subsidies to promote private investments into young, innovative firms. Under these circumstances it becomes ever more important to identify possible imbalances of risk capital (i.e. private equity and/or venture capital) markets. The present study provides econometric analyses (propensity score matching and probit regressions) based on firm data with the estimations displaying some distortions. In particular, a location outside Vienna as well as its shares of female and foreign managers display negative impacts on a company’s likelihood to be risk financed.


Author(s):  
Jeffrey W. Ladewig

International trade is a dynamic and powerful force that affects nearly every individual, business, and nation in the world. Its scope and scale have also made international trade an immense, intense, and perennial subject of interest and inquiry. Some of the foundational works on international trade can be traced back to Adam Smith and David Hume, whose theories sought to debunk the commonly held idea of international trade at the time: mercantilism, which viewed exports as beneficial because they generated an increase in foreign currency and a nation’s wealth, and imports as detrimental because they were thought to decrease a nation’s wealth. Today, the general idea of comparative advantage informs almost all neoclassical economists’ models of international trade. However, neoclassical economists tend to assume that the theoretical benefits of international trade are clear, and thus, often ignore or dismiss the negative impacts of international trade and the studies that challenge their theories. In fact, many countries have not seen the benefits predicted by neoclassical economic theories. This is particularly evident when comparing the effects of international trade across developed and developing countries. Furthermore, there is evidence that international trade has developed along patterns that are not predicted by the traditional theories of comparative advantage. Given these, the practice of trade and its international impact can be much murkier.


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