unintended effects
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Author(s):  
Lori Lach ◽  
Dylan Case ◽  
Peter Yeeles ◽  
Conrad J. Hoskin

AbstractInvasive ants are among the world’s most damaging invasive species, often directly or indirectly affecting native fauna. Insecticidal baits are the main method for suppressing or eradicating invasive ant populations, but their use must be considered against potential for unintended effects on native organisms. The invasive yellow crazy ant (Anoplolepis gracillipes) is widespread in the tropics, particularly on islands, where they have displaced a range of invertebrates. Effects of this ant on vertebrates, and in continental ecosystems generally, are less studied. We investigated the effects of yellow crazy ants and bait application on rainforest skinks and their invertebrate prey. We compared skink and skink prey abundance across four replicated rainforest site categories: high and low yellow crazy ant sites had both been baited but differed in yellow crazy ant activity; control sites had never had yellow crazy ants or been baited; and buffer sites had never had yellow crazy ants but had been baited. We recorded significantly lower abundance of two small skink species (Lygisaurus laevis and Saproscincus tetradactylus) in high yellow crazy ant sites compared to all other site categories. The differences persisted even after baiting reduced yellow crazy ant activity by 97.8% ± 0.04% (mean ± SD). A larger rainforest skink species (Carlia rubrigularis) was not negatively affected by yellow crazy ant invasion. Skink prey abundance was significantly lower in high yellow crazy ant sites compared to control sites and low yellow crazy ant sites, but not compared to buffer sites. These differences did not persist following baiting. We found no evidence that baiting negatively affects skinks or their invertebrate prey. Our data suggest that yellow crazy ants, but not the bait used to treat them, pose a direct threat to small rainforest skinks.


Author(s):  
Don F. Westerheijden

AbstractThis chapter revisits the policy issue of the balance between peer review and performance indicators as a means to assess the quality of higher education, with a focus on unintended effects that emerge when peer review is employed in quality assurance procedures of higher education institutions as a whole. The attempted solutions of using self-assessments with their base of performance indicators, combined with review teams that stretch the meaning of peer review, increase goal displacement behaviour in higher education institutions. The chapter concludes with two ensuing dilemmas that require careful balancing between quality enhancement and superficial compliance, whatever the role of peer review in institutional quality assurance.


2021 ◽  
pp. 002224372110705
Author(s):  
Hiroaki Sakaguchi ◽  
Neil Stewart ◽  
John Gathergood ◽  
Paul Adams ◽  
Benedict Guttman-Kenney ◽  
...  

Credit card minimum payments are designed to ensure that individuals pay down their debt over time, and scheduling minimum automatic repayments helps to avoid forgetting to repay. Yet minimum payments have additional, unintended psychological default effects by drawing attention away from the card balance due. First, once individuals set the minimum automatic repayment as the default, they then neglect to make the occasional larger repayments they made previously. As a result, individuals incur considerably more credit card interest than late payment fees avoided. Using detailed transaction data, the authors show that approximately 8% of all of the interest ever paid is due to this effect. Second, manual credit card payments are lower when individuals are prompted with minimum payment information. Two new interventions to mitigate this effect are tested in an experiment, prompting full repayment and prompting those repaying little to pay more, with large counter effects. Hence, shrouding the minimum payment option for automatic and manual payments and directing attention to the full balance may remedy these unintended effects.


2021 ◽  
Author(s):  
William John Bingley ◽  
Anh Tran ◽  
Candice Boyd ◽  
Kari Gibson ◽  
Elise Katherine Kalokerinos ◽  
...  

Climate change anxiety is a growing problem for individual well-being the world over. However, psychological interventions to address climate change anxiety may have unintended effects on outcomes other than individual well-being, such as group cohesion and pro-environmental behavior. Reflecting this complexity, we outline a multiple needs framework of climate change anxiety interventions, which can be used to analyze interventions in terms of their effects on individual, social, and environmental outcomes. We use this framework to contextualize a systematic review of the literature detailing the effects of climate change anxiety interventions. This analysis identifies interventions centered around problem-focused action, emotion management, and enhancing social connections as those which have positive effects on the widest range of outcomes. It also identifies interventions that may have detrimental effects on one or more outcomes. We identify gaps where more research is required, including research that assesses the effects of climate change anxiety interventions on individual, social and environmental outcomes in concert. An interactive website summarizes these insights and presents the results of the systematic review in a way that is accessible to a range of stakeholders. The multiple needs framework provides a way to conceptualize the effectiveness of climate change anxiety interventions beyond their impact on individual well-being, contributing to a more holistic understanding of the effects of this global phenomenon.


2021 ◽  
Vol 30 (4) ◽  
pp. 250-256
Author(s):  
Sebastian Rhein ◽  
Katharina Friederike Sträter

Several EU countries discuss introducing deposit systems for single-use bottles to mitigate pollution. However, as an analysis of the German experiences indicates, the introduction of a deposit on single-use beverage containers might unintendedly compromise the endeavor to implement a circular economy. Such unintended effects need to be considered to enable the implementation of a circular economy that prioritizes reduction and reuse compared to recycling.High levels of environmental pollution and low recycling rates have triggered a debate on deposit return systems for single-use beverage containers (BCs) within the European Union. In 2003, Germany statutorily implemented a deposit for single-use BCs, which operates alongside a historically grown deposit system for multi-use bottles. The long-standing German practice can be used as a source of relevant experiences. These experiences show that the introduction of a single-use deposit is a double-edged sword: on the one hand, it caused an increase in return and recycling rates of single-use BCs. On the other hand, there were unintended effects on the long-standing multi-use system and, thus, on the endeavor to implement a circular economy where reduction and reuse are prioritized rather than recycling. It seems that the introduction of a single-use deposit system promotes a narrow mode of thinking and a focus on recycling, which hinders the revitalization of multi-use BC systems. The EU’s debate on single-use deposit lacks critical consideration of such unintended effects. The discussion of the German experiences might help to avoid unintended effects that hinder the establishment of a circular economy.


2021 ◽  
Vol 2 ◽  
Author(s):  
Meaghan M. Meyer ◽  
Anna K. Johnson ◽  
Elizabeth A. Bobeck

Genetic selection for fast growth rate and high breast muscle yield in modern broilers has unintended effects on animal welfare and behavior, namely in terms of inactivity and leg disorders. We hypothesized that exercise stimulated through environmental enrichment could positively stimulate pen-wide activity and improve bird welfare. The study objectives were to implement a laser enrichment device to motivate active and feeding behaviors throughout the pen. Twelve hundred Ross 708 broilers were randomly assigned to enrichment (LASER; laser enrichment, or CON; no laser enrichment) for 49 d. Seventy focal birds were randomly assigned to 14 video-recorded pens for behavioral analysis, including focal bird home pen behavior and walking distance. Pen-wide activity was also measured during the 4-min laser periods, four times daily, d0–8, and 1 day weekly, wk 1–6. Focal birds were gait scored wk 1–6, and were euthanized on d42 for tibia bone mineral content, density, and bone breaking strength analysis. Time spent active was increased in LASER-enriched birds compared to CON on wk 3–5 by up to 214% (wk 4), and percent of time at the feeder was increased in LASER-enriched birds by 761% on wk 4 (P < 0.05). Peak percent of birds following the laser (LASER-enriched pens only) was observed on d0 (8.52%). Over wk 1–6, peak laser-following behavior was observed on wk 3 (3.07% of birds). Percent of birds moving during laser periods was increased in LASER-enriched pens on d0, 1, 2, 6, 7, and 8, with a percent increase of 68.7% observed on d1 (P < 0.05). Percent of birds moving (laser-following or not) was increased on wk 1, 3, and 4 in LASER-enriched pens, with an increase of 69.7% observed on wk 4 (P < 0.05). No differences were found in tibia measures. These data indicate that laser enrichment stimulated voluntary locomotion through wk 5 and laser-following behavior through wk 6, and that the relatively small percent of birds actively following the laser stimulated pen-wide movement above the level of the CON through wk 4 on study.


Cells ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 3303
Author(s):  
Vadim G. Lebedev ◽  
Anna A. Popova ◽  
Konstantin A. Shestibratov

Low nitrogen availability is one of the main limiting factors for plant growth and development, and high doses of N fertilizers are necessary to achieve high yields in agriculture. However, most N is not used by plants and pollutes the environment. This situation can be improved by enhancing the nitrogen use efficiency (NUE) in plants. NUE is a complex trait driven by multiple interactions between genetic and environmental factors, and its improvement requires a fundamental understanding of the key steps in plant N metabolism—uptake, assimilation, and remobilization. This review summarizes two decades of research into bioengineering modification of N metabolism to increase the biomass accumulation and yield in crops. The expression of structural and regulatory genes was most often altered using overexpression strategies, although RNAi and genome editing techniques were also used. Particular attention was paid to woody plants, which have great economic importance, play a crucial role in the ecosystems and have fundamental differences from herbaceous species. The review also considers the issue of unintended effects of transgenic plants with modified N metabolism, e.g., early flowering—a research topic which is currently receiving little attention. The future prospects of improving NUE in crops, essential for the development of sustainable agriculture, using various approaches and in the context of global climate change, are discussed.


Pharmaceutics ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2008
Author(s):  
Keshav Raj Paudel ◽  
Saurav Kumar Jha ◽  
Venkata Sita Rama Raju Allam ◽  
Parteek Prasher ◽  
Piyush Kumar Gupta ◽  
...  

Respiratory diseases contribute to a significant percentage of mortality and morbidity worldwide. The circadian rhythm is a natural biological process where our bodily functions align with the 24 h oscillation (sleep–wake cycle) process and are controlled by the circadian clock protein/gene. Disruption of the circadian rhythm could alter normal lung function. Chronotherapy is a type of therapy provided at specific time intervals based on an individual’s circadian rhythm. This would allow the drug to show optimum action, and thereby modulate its pharmacokinetics to lessen unwanted or unintended effects. In this review, we deliberated on the recent advances employed in chrono-targeted therapeutics for chronic respiratory diseases.


Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7792
Author(s):  
Andra Blumberga ◽  
Gatis Bazbauers ◽  
Selina Vancane ◽  
Ivars Ijabs ◽  
Jurijs Nikisins ◽  
...  

The European Union has set an ambitious goal to tackle climate change, and energy efficiency in the residential sector is among the measures required to close the gap between targeted and actual greenhouse gas emissions. While different policy tools have been applied, the diffusion rate of these measures remains low. A system dynamics simulation model of the residential sector was developed to assess the advantages and drawbacks of energy efficiency policy in the multi-family building sector based on experience accumulated over the last twelve years in Latvia. The model was validated in expert group model building sessions and with historical trends. Simulating the model, a hypothesis was tested that supported the idea that seemingly positive policy tools set the stage for a series of unintended adverse effects due to the complex interactions between different system components. The common assumption that information and financial support should result in significant energy efficiency diffusion proved to be wrong. It instead results in unintended long-term consequences that hamper national energy efficiency goals. The model carried out an analysis and brought insights for improving the effectiveness of government energy efficiency policy. It is concluded that models that broadly describe complex systems are needed to identify effective policies and foresee unintended side effects.


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