Proactive Management Strategies for Dealing with Foreign Materials

2019 ◽  
Vol 116 (16) ◽  
pp. 7905-7910 ◽  
Author(s):  
Alice Fournier ◽  
Caterina Penone ◽  
Maria Grazia Pennino ◽  
Franck Courchamp

Invasive alien species are a great threat to biodiversity and human livelihoods worldwide. The most effective way to limit their impacts and costs is to prevent their introduction into new areas. Identifying invaders and invasions before their occurrence would arguably be the most efficient strategy. Here, we provide a profiling method to predict which species—with which particular ecological characteristics—will invade, and where they could invade. We illustrate our approach with ants, which are among the most detrimental invasive species, as they are responsible for declines of numerous taxa, are involved in local extinctions, disturb ecosystem functioning, and impact multiple human activities. Based on statistical profiling of 1,002 ant species from an extensive trait database, we identify 13 native ant species with an ecological profile that matches that of known invasive ants. Even though they are not currently described as such, these species are likely to become the next global invaders. We couple these predictions with species distribution models to identify the regions most at risk from the invasion of these species: Florida and Central America, Brazil, Central Africa and Madagascar, Southeast Asia, Papua New Guinea Northeast Australia, and many islands worldwide. This framework, applicable to any other taxa, represents a remarkable opportunity to implement timely and specifically shaped proactive management strategies against biological invasions.


2015 ◽  
Vol 8 (2) ◽  
pp. 233-242 ◽  
Author(s):  
Brenda S. Smith ◽  
Roger L. Sheley

Weed prevention is recognized as one of the most cost-effective management strategies for invasive plants. In the field of invasive plant management increasing emphasis is being directed toward proactive management. However, land managers are still somewhat reluctant to aggressively employ prevention programs. Part of this reluctance could be due to lack of understanding of what a comprehensive prevention program entails. The purpose of this paper is to improve strategic decision-making for site-specific prevention programs, such as those on ranches or in watersheds. Our interest is in advancing prevention planning for land managers—the people who are faced with the constant pressure of potential invasive species infestations on a day-to-day basis. To facilitate more widespread use of prevention programs we are proposing definitions for key terminology to standardize and facilitate communication about prevention programs. Additionally, we present a flow model with the steps necessary to successfully implement such programs. The model has three categories from which specific prevention planning occurs: (1) education, (2) early detection and eradication, and (3) interruption of movement. The flow model directs users through a series of interlinked steps. Finally, we provide a case study in which a ranch manager implemented a prevention program using this framework. By using this model, managers are poised to conduct more strategic planning. This model also has applications in outreach and education programs to assist land managers in prevention planning.


2019 ◽  
Vol 11 (23) ◽  
pp. 6800
Author(s):  
Abdelkader Daghfous ◽  
Omar Belkhodja

This paper sought to extend the existing talent management literature through an exploratory investigation of talent loss resulting from the possible departure of talented employees from the procurement function of hotels. Through a multiple case study of five organizations in the hospitality industry, we found that the departure of talented procurement managers disrupts supply chain operations and leads to a loss of valuable explicit, tacit, and relational knowledge. Procurement managers were found to hold critical skills and knowledge that are essential for the case organizations. Hence, more proactive management strategies were adopted. Managers seeking to minimize the negative impact of talent loss in the procurement function would be well-advised to treat this procurement function as a strategic one and to adopt proactive and documented management strategies. Firms should be aware of the type of important knowledge and of the importance of aligning their strategies with such knowledge. To retain relational knowledge in case of talent loss, strategies should be designed to reduce the firm’s reliance on personal contacts and emotion-based trust in supplier relationships. We concluded the paper with implications for future research and managerial practice for managing talent loss, with an emphasis on sustainability in the hospitality industry.


Author(s):  
David Morrison-Love

AbstractResearch into technological problem solving has shown it to exist in a range of forms and draw upon different processes and knowledge types. This paper adds to this understanding by identifying procedural and epistemic differences in relation to task performance for pupils solving a well-defined technological problem. The study is theoretically grounded in a transformative epistemology of technology education. 50 pupils in small groups worked through a cantilever problem, the most and least successful solutions to which were identified using a Delphi technique. Time-interval photography, verbal interactions, observations and supplementary data formed a composite representation of activity which was analysed with successively less contrasting groups to isolate sustained differences. Analyses revealed key differences in three areas. First, more successful groups used better and more proactive process-management strategies including use of planning, role and task allocation with lower levels of group tension. Second, they made greater use of reflection in which knowledge associated with the technological solution was explicitly verblised. This was defined as ‘analytical reflection’ and reveals aspects of pupils’ qualitative technical knowledge. Third, higher-performing groups exhibited greater levels of tacit-procedural knowledge within their solutions. There was also evidence that less successful groups were less affected by competition and not as comprehensive in translating prior conceptual learning into their tangible technological solutions. Overall findings suggest that proactive management, and making contextual and technical connections, are important for pupils solving well-defined technological problems. This understanding can be used to support classroom pedagogies that help pupils learn to problem solve more effectively.


2015 ◽  
Vol 41 (2) ◽  
Author(s):  
Anand Persad ◽  
Patrick Tobin

The emerald ash borer (EAB), first discovered in North America in Michigan in 2002, continues to expand its distributional range. Early detection of EAB remains a major caveat in efforts to implement proactive management strategies. Past reports have shown that ash trees infested with EAB have an increased risk of branch failure and other symptoms associated with tree decline. Therefore, early detection efforts could be improved if a suite of tree symptoms—prior to visible signs of EAB infestation—can be identified. Researchers initiated a four-year study in Ohio, U.S. (2009– 2012) to investigate and document symptoms associated with the EAB–ash tree complex in urban sites. The prior history of EAB at the study sites ranged from ash trees with no visible evidence of infestation to those that were infested for more than two years. In trees shown to be recently colonized by EAB, visible signs of infestation, such as adult emergence holes, presence of EAB galleries, bark loss, and canopy loss were not always apparent. However, in EAB-positive trees, there was a significant tendency for the presence of cracks in scaffold branches, branch fractures within the upper canopy, and branch fractures specifically located closer to the union with the stem as opposed to at the branch tip or at the branch’s center of gravity. This study highlights tree symptoms associated with the initial colonization of EAB when host trees are still apparently healthy, which could greatly facilitate future detection efforts for EAB.


PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254097
Author(s):  
Chase S. Jalbert ◽  
Jeffrey A. Falke ◽  
J. Andrés López ◽  
Kristine J. Dunker ◽  
Adam J. Sepulveda ◽  
...  

The relentless role of invasive species in the extinction of native biota requires predictions of ecosystem vulnerability to inform proactive management strategies. The worldwide invasion and range expansion of predatory northern pike (Esox lucius) has been linked to the decline of native fishes and tools are needed to predict the vulnerability of habitats to invasion over broad geographic scales. To address this need, we coupled an intrinsic potential habitat modelling approach with a Bayesian network to evaluate the vulnerability of five culturally and economically vital species of Pacific salmon (Oncorhynchus spp.) to invasion by northern pike. This study was conducted along 22,875 stream km in the Southcentral region of Alaska, USA. Pink salmon (O. gorbuscha) were the most vulnerable species, with 15.2% (2,458 km) of their calculated extent identified as “highly” vulnerable, followed closely by chum salmon (O. keta, 14.8%; 2,557 km) and coho salmon (O. kisutch, 14.7%; 2,536 km). Moreover, all five Pacific salmon species were highly vulnerable in 1,001 stream km of shared habitat. This simple to implement, adaptable, and cost-effective framework will allow prioritizing habitats for early detection and monitoring of invading northern pike.


Author(s):  
Lidiya Guryanova ◽  
Olena Bolotova ◽  
Vitalii Gvozdytskyi ◽  
Sergienko Olena

It is shown that one of the directions for increasing the efficiency of managing corporate systems (CS) under the influence of a large number of destabilizing fa-tors ("shocks", threats) is the development of a set of models of estimation and analysis of the long-term stability of CS in proactive contour of management, which allow timely diagnosing a decrease in the company's security level and adopting effective preventive management decisions. A review of existing approa-ches to the formation of such a set of models showed a number of limitations, the result of which is a low forecasting accuracy. The proposed approach, unlike the existing ones, allows to: 1) determine the optimal dimension of the information space of diagnostic factors; 2) find the optimal number of classes of situations for which differentiated management strategies can be developed; 3) determine the period of pre-emption, which does not require updating the models of retrospective diagnostics. This makes it possible to identify the class of not only current, but also forecast situations for a given horizon of proactive management and to choose an adequate preventive strategy.


2020 ◽  
Vol 9 (1) ◽  
pp. 45-53
Author(s):  
Tanvi Malik

Student behaviour and engagement in school is crucial for effective learning. The classroom management approaches are usually categorised into two main groups- reactive and proactive. This article examines classroom behaviour management through the lens of reactive and proactive management strategies. It reports on the perceptions of different stakeholders regarding low-level disengaged behaviour in the classroom. Also, evaluate some of the strategies teachers employ for managing student behaviour and effectiveness of those strategies. Antecedent behaviour management strategies have been an effective tool for managing disengaged behaviour. Despite the positive outcomes of antecedent approaches research showed educators employed these strategies occasionally.


2021 ◽  
Vol 10 ◽  
pp. 12
Author(s):  
Olugbenga Awolaran ◽  
Jigna Sheth

Functional intestinal obstruction of prematurity (FIOP) is characterised by a partial or complete failure of meconium evacuation due to hypomotility of the immature bowel and this presents with features of intestinal obstruction typically within the first 2 weeks of life. It contributes significantly to the morbidity and mortality of extremely and very low birth weight preterm infants. This disorder has been described using many terminologies and there is controversy amidst clinicians as to the optimal approach to its management. This review summarises the characteristic clinical and radiologic findings to aid timely diagnosis and initiation of prompt treatment. Available evidence on different treatment options and their limitations is reviewed and practical stepwise management is described. In most cases, FIOP can be successfully managed conservatively with proactive management and monitoring. Overall outcomes are favourable and normal long-term gastrointestinal function is commonly experienced. Evidence for investigations to exclude cystic fibrosis and Hirschsprung’s disease in preterm infants with FIOP is evaluated and a link with focal intestinal perforation is highlighted.


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