bluuebunny/crossref_metadata_2025_split huggingface dataset:
The individual and combined effects of snowmelt timing and frost exposure on the reproductive success of montane forbs
Authors: Pardee Gabriella L. , Jensen Isaac O. , Inouye David W. , Irwin Rebecca E. 
Published: February 2019

Abstract

Changes from historic weather patterns have affected the phenology of many organisms world‐wide. Altered phenology can introduce organisms to novel abiotic conditions during growth and modify species interactions, both of which could drive changes in reproduction.

We explored how climate change can alter plant reproduction using an experiment in which we manipulated the individual and combined effects of snowmelt timing and frost exposure, and measured subsequent effects on flowering phenology, peak flower density, frost damage, pollinator visitation and reproduction of four subalpine wildflowers. Additionally, we conducted a pollen‐supplementation experiment to test whether the plants in our snowmelt and frost treatments were pollen limited for reproduction. The four plants included species flowering in early spring to mid‐summer.

The phenology of all four species was significantly advanced, and the bloom duration was longer in the plots from which we removed snow, but with species‐specific responses to snow removal and frost exposure in terms of frost damage, flower production, pollinator visitation and reproduction. The two early blooming species showed significant signs of frost damage in both early snowmelt and frost treatments, which negatively impacted reproduction for one of the species. Further, we recorded fewer pollinators during flowering for the earliest‐blooming species in the snow removal plots. We also found lower fruit and seed set for the early blooming species in the snow removal treatment, which could be attributed to the plants growing under unfavourable abiotic conditions. However, the later‐blooming species escaped frost damage even in the plots where snow was removed, and experienced increased pollinator visitation and reproduction.

Synthesis. This study provides insight into how plant communities could become altered due to changes in abiotic conditions, and some of the mechanisms involved. While early blooming species may be at a disadvantage under climate change, species that bloom later in the season may benefit from early snowmelt, suggesting that climate change has the potential to reshape flowering communities.
Effect of lianas on forest‐level tree carbon accumulation does not differ between seasons: Results from a liana removal experiment in Panama
Authors: van der Heijden Geertje M. F. , Powers Jennifer S. , Schnitzer Stefan A. 
Published: February 2019

AbstractLianas are prevalent in Neotropical forests, where liana‐tree competition can be intense, resulting in reduced tree growth and survival. The ability of lianas to grow relative to trees during the dry season suggests that liana‐tree competition is also strongest in the dry season. If correct, the predicted intensification of the drying trend over large areas of the tropics in the future may therefore intensify liana‐tree competition resulting in a reduced carbon sink function of tropical forests. However, no study has established whether the liana effect on tree carbon accumulation is indeed stronger in the dry than in the wet season.Using 6 years of data from a large‐scale liana removal experiment in Panama, we provide the first experimental test of whether liana effects on tree carbon accumulation differ between seasons. We monitored tree and liana diameter increments at the beginning of the dry and wet season each year to assess seasonal differences in forest‐level carbon accumulation between removal and control plots.We found that median liana carbon accumulation was consistently higher in the dry (0.52 Mg C ha−1year−1) than the wet season (0.36 Mg C ha−1year−1) and significantly so in three of the years. Lianas reduced forest‐level median tree carbon accumulation more severely in the wet (1.45 Mg C ha−1year−1) than the dry (1.05 Mg C ha−1year−1) season in all years. However, the relative effect of lianas was similar between the seasons, with lianas reducing forest‐level tree carbon accumulation by 46.9% in the dry and 48.5% in the wet season.Synthesis.Our results provide the first experimental demonstration that lianas do not have a stronger competitive effect on tree carbon accumulation during the dry season. Instead, lianas compete significantly with trees during both seasons, indicating a large negative effect of lianas on forest‐level tree biomass increment regardless of seasonal water stress. Longer dry seasons are unlikely to impact liana‐tree competition directly; however, the greater liana biomass increment during dry seasons may lead to further proliferation of liana biomass in tropical forests, with consequences for their ability to store and sequester carbon.
Evaluation of the potentiating effects of antidepressants on the contractile response to noradrenaline in guinea pig urethra smooth muscles
Authors: Obara Keisuke , Imanaka Satoko , Fukuhara Hiroka , Yamaki Fumiko , Matsuo Kazuhiro , Yoshio Takashi , Tanaka Yoshio 
Published: February 2019

SummaryWe investigated the potential augmenting effects of 19 clinically available antidepressants on noradrenaline (NA)‐induced contractions in guinea pig urethra smooth muscle (USM). Concentration‐response curves for NA‐induced contractions in guinea pig USM strips were obtained in the absence or presence of selected antidepressants. Desipramine, an active metabolite of imipramine, produced a contraction and potentiated NA‐induced contraction at the distal urethra without affecting the proximal urethra. Further, nortriptyline and amoxapine, tricyclic antidepressants, produced a contraction and potentiated NA‐induced contraction at the distal urethra. NA‐induced contraction was unaffected or reduced by imipramine, clomipramine, trimipramine, and amitriptyline at the proximal and distal urethra. Maprotiline, a tetracyclic antidepressant, potentiated NA‐induced contraction at the distal urethra. NA‐induced contraction was unaffected by mianserin at the proximal and distal urethra. Paroxetine, a selective serotonin reuptake inhibitor (SSRI), potentiated NA‐induced contraction at the distal urethra, while NA‐induced contraction was unaffected by fluvoxamine, sertraline, and escitalopram at the proximal and distal urethra. Milnacipran, a serotonin‐noradrenaline reuptake inhibitor (SNRI), potentiated NA‐induced contraction at the proximal and distal urethra, whereas duloxetine potentiated it at the distal urethra. Mirtazapine slightly inhibited NA‐induced contraction at the distal urethra. Aripiprazole and sulpiride did not affect NA‐induced contractions at the proximal nor distal urethra. Trazodone inhibited NA‐induced contraction at both urethras. Desipramine, nortriptyline, amoxapine, maprotiline, paroxetine, milnacipran, and duloxetine likely induce urinary disturbance by increasing urethral resistance and augmenting NA‐induced contraction, which should be carefully considered when delivering guidance for drug administration to patients.
Isolation or interaction: healthcare provider experience of design change
Authors: VanHeuvelen Jane S. 
Published: February 2019

AbstractRecent studies have drawn attention to the relationship between healthcare environments and patient outcomes. Yet, it remains unclear how changes in the design of healthcare facilities are experienced by providers. To understand this relationship, this study employs an inhabited institutionalist theoretical frame to assess longitudinal ethnographic and interview data collected at a neonatal intensive care unit (NICU) as it transformed from an open‐bay unit, to one with single‐patient rooms. Findings show that changing the structure of the NICU interfered with the original local organisational culture of collaboration. While providers actively worked to maintain the original culture, their success in doing so was mediated by the built environment. Responding to the new space, practitioners developed new practices. Some of the practices (such as doorway discussions and increased individual assessments) directly undermined the original organisational culture, whereas others (hallway hangouts and calling out) worked to transpose the original culture into the new space. These findings call for greater attention to the effect of physical space on organisational culture.
Economic grievances and political protest
Authors: KURER THOMAS , HÄUSERMANN SILJA , WÜEST BRUNO , ENGGIST MATTHIAS 
Published: February 2019

AbstractHow do economic grievances affect citizens’ inclination to protest? Given rising levels of inequality and widespread economic hardship in the aftermath of the Great Recession, this question is crucial for political science: if adverse economic conditions depress citizens’ engagement, as many contributions have argued, then the economic crisis may well feed into a crisis of democracy. However, the existing research on the link between economic grievances and political participation remains empirically inconclusive. It is argued in this article that this is due to two distinct shortcomings, which are effectively addressed by combining the strengths of political economy and social movement theories. Based on ESS and EU‐SILC data from 2006–2012, as well as newly collected data on political protest in 28 European countries, a novel, more fine‐grained conceptualisation of objective economic grievances considerably improves our understanding of the direct link between economic grievances and protest behaviour. While structural economic disadvantage (i.e., the level of grievances) unambiguously de‐mobilises individuals, the deterioration of economic prospects (i.e., a change in grievances) instead increases political activity. Revealing these two countervailing effects provides an important clarification that helps reconcile many seemingly conflicting findings in the existing literature. Second, the article shows that the level of political mobilisation substantially moderates this direct link between individual hardship and political activity. In a strongly mobilised environment, even structural economic disadvantage is no longer an impediment to political participation. There is a strong political message in this interacting factor: if the presence of organised and visible political action is a decisive signal for citizens that conditions the micro‐level link between economic grievances and protest, then democracy itself – that is, organised collective action – can help sustain political equality and prevent the vicious circle of democratic erosion.
On prediction in political science
Authors: DOWDING KEITH , MILLER CHARLES 
Published: February 2019

AbstractThis article discusses recent moves in political science that emphasise predicting future events rather than theoretically explaining past ones or understanding empirical generalisations. Two types of prediction are defined: pragmatic, and scientific. The main aim of political science is explanation, which requires scientific prediction. Scientific prediction does not necessarily entail pragmatic prediction nor does it necessarily refer to the future, though both are desiderata for political science. Pragmatic prediction is not necessarily explanatory, and emphasising pragmatic prediction will lead to disappointment, as it will not always help in understanding how to intervene to change future outcomes, and policy makers are likely to be disappointed by its time‐scale.
Responding to the crisis: Eurosceptic parties of the left and right and their changing position towards the European Union
Authors: BRAUN DANIELA , POPA SEBASTIAN ADRIAN , SCHMITT HERMANN 
Published: February 2019

AbstractAt the time of the election of the European Parliament (EP) in 2014, the European Union (EU) was heavily affected by a multifaceted crisis that had – and still has – far‐reaching implications for the political system of its member countries, but also for the European level of governance. Against the background of the strong Eurosceptic vote in the 2014 EP elections, this study aims to investigate in which way Eurosceptic parties of the left and the right respond to the multiple crises of the EU. Using data from the Euromanifesto Project from 2004/2009 and 2014, changes in the party positions towards the EU are analysed in the shadow of the multiple crises and the reasons thereof are explored. The findings show a general anti‐European shift among the two types of Eurosceptic parties. Nevertheless, the changes in the EU polity tone are not determined by issue‐based repercussions of the multiple crises, but by the EU‐related evaluation – the polity mood – of the national citizenry. For far‐right Eurosceptic parties, the shift is moderated by the level of public support for EU integration in their national environment. Among far‐left Eurosceptic parties, by contrast, it is moderated by the more specific public attitudes about the monetary union policy of the EU. Consequently, political parties when drafting their manifestos for EP elections are not so much guided by the objective severity of political problems or by the evaluations of these problems by the citizenry. What matters in the end is the link that citizens themselves are able to establish between the severity of political problems, on the one hand, and the responsibility of the EU for these problems on the other. This has important consequences for understanding of the nature and substance of political responsiveness within the EU system of multilevel governance.
The challenge for koala conservation on private land: koala habitat use varies with season on a fragmented rural landscape
Authors: Dargan J. R. , Moriyama M. , Mella V. S. A. , Lunney D. , Crowther M. S. 
Published: February 2019

AbstractLand clearing for agriculture results in fragmented landscapes with diminished resources for wildlife. Habitat loss and fragmentation are widespread problems; however, their impacts are rarely assessed simultaneously at multiple spatial and temporal scales. We used a focal site, multiscale design to examine how landscape characteristics that affect the probability of koala Phascolarctos cinereus presence varies over multiple spatial and temporal scales in a fragmented rural landscape in north‐western New South Wales, Australia. We modelled the effect of variables representing landscape characteristics at three spatial extents – transect, patch and site – over three seasonal periods (mid‐spring, late‐spring and mid‐summer). Koala activity level (as determined by faecal pellets) varied between surveys, and identifies short‐term seasonal changes in habitat use. Koala presence had the strongest association with patch scale variables (habitat suitability, soil fertility and patch area). Temporal variation in the effect of tree and landscape characteristics on koala presence highlights the limitations of surveys at a single point in time, and emphasizes that further research is needed to advance our understanding of what drives temporal variation in koala habitat use at multiple spatial scales. Our results show that to arrest declining koala populations in rural agricultural landscapes, conservation and management plans must consider landscape scale processes over a variety of time scales, and engage stakeholders across multiple properties and tenures, to conserve both disturbed and suitable habitat on private land.
Identifying critical research gaps that limit control options for invertebrate pests in Australian grain production systems
Authors: Macfadyen Sarina , Moradi‐Vajargah Mona , Umina Paul , Hoffmann Ary , Nash Michael , Holloway Jo , Severtson Dusty , Hill Matthew , Van Helden Maarten , Barton Madeleine 
Published: February 2019

AbstractIntegrated Pest Management (IPM) is often described as a knowledge‐intensive approach to invertebrate pest management, requiring information on the biology, ecology and phenology of a pest combined with an understanding of the interactions between crop growth and pests and between pests and their natural enemies. We conducted a systematic quantitative literature review to summarise what is known about pest and natural enemy species common to Australian grain production systems, based on 1513 published and unpublished research studies. Drawing on this information, we address three issues: what are the knowledge gaps in relation to grain pests and their natural enemies, do these knowledge gaps limit the development of an IPM package for grain growers in Australia and what further ecological or biological information might growers require to enhance the use of IPM approaches for managing pests? The main gaps identified include a lack of understanding around specific factors that lead to pest outbreaks or factors that could be useful for predicting when and where pest outbreaks will occur in the future. Monitoring techniques for many pests are not well developed, and therefore, it is difficult to link the density recorded in a field with crop damage and yield loss and to develop economic thresholds that can be linked with intervention decisions. For most natural enemies, the impact in terms of reduction in pest numbers has not been quantified, with very few studies including both pests and natural enemies together. There is large variability in the level of control provided by natural enemies between years and regions, and the factors leading to this variability are not well understood. Finally, the lack of taxonomic resolution for individual species within groups is identified as a critical knowledge gap. We suggest that a more comprehensive fundamental knowledge base is required across the invertebrate community in grain systems aimed at reducing insect pest outbreaks, combined with a greater depth of understanding in monitoring strategies for pests that contribute to pesticide‐use decisions.
Mid‐ventricular obstructive hypertrophic cardiomyopathy with apical aneurysm: An important subtype of arrhythmogenic cardiomyopathy
Authors: Cui Li , Tse Gary , Zhao Zhiqiang , Bazoukis George , Letsas Konstantinos P. , Korantzopoulos Panagiotis , Roever Leonardo , Li Guangping , Liu Tong 
Published: February 2019

AbstractMid‐ventricular obstructive hypertrophic cardiomyopathy (MVOHCM) is an uncommon type of HCM. LV apical aneurysms are present in more than 20% MVOHCM cases and has been identified as an independent predictor of potentially lethal arrhythmic events, including non‐sustained or sustained ventricular tachycardia (VT), and ventricular fibrillation (VF), as well as SCD. Although the pathogenesis of LVA remains unknown, but it has been suggested that apical aneurysm may be secondary to the increased after‐load and high apical pressure arising from significant pressure gradient of the midventricular obstruction. The scarred rim of the aneurysm and the adjacent areas of LV myocardial fibrosis and consequent apical oxygen‐demand mismatch may be responsible for the formation of apical aneurysm. Recent electrophysiologic studies have demonstrated that the aneurysmal rim forms the primary culprit arrhythmogenic substrate for generation of monomorphic ventricular tachycardia leading to SCD, but the clinical significance of the size of aneurysm in relation to SCD remains unsettled. We summarized the clinical features of the patients with MVOHCM and apical aneurysms. Appropriate therapeutic interventions include ICD implantation, and early surgical intervention for gradient relief may be undertaken to relief the MVO.
Lithium and the Woozle effect
Authors: Kelly Tammas 
Published: February 2019

AbstractObjectivesLithium is the oldest and most‐studied treatment for bipolar depression. Many treatment guidelines place lithium as a top treatment recommendation for bipolar depression; yet some guidelines do not recommend lithium at all. These discrepancies were explored by examining the following errors: the Woozle effect (evidence by citation), reference inflation (overreporting the findings of cited studies) and belief perseverance (maintaining a belief despite new contradictory evidence) as possible causes for these discrepancies.MethodsVarious search engines were used to find treatment guidelines for bipolar depression. The references cited in these guidelines were examined and analyzed in‐depth.ResultsTen guidelines recommend lithium as a first‐line treatment for bipolar depression. Five did not recommend lithium at all for the treatment of bipolar depression. These discrepancies are remarkable. The references cited in the treatment guidelines were examined and do not favor lithium as a treatment for bipolar depression. The guidelines that favored lithium for the treatment of bipolar depression suffered numerous Woozle effects, reference inflation and belief perseverance are prevalent in guidelines that recommend lithium as a first‐line treatment. All three errors are principally slippery slopes. These errors do not involve a deliberate attempt to mislead and may reflect failures of the peer review process.ConclusionsThese errors may be common, as demonstrated in the case of lithium, interfering with our understanding and practice of evidence‐based medicine. Both authors and journals need to guard against these types of errors in order to achieve sound evidence‐based medical practices.
Law‐abiding organizational climates in developing countries: The role of institutional factors and socially responsible organizational practices
Authors: Mohammad Shoeb , Husted Bryan W. 
Published: February 2019

AbstractThe institutional environment of developing countries may lead firms to engage in unlawful firm conduct, which is a pervasive problem in this context. Our paper examines the effectiveness of organizational practices for ensuring that firms adhere to the law in the light of pressures from the institutional environment to be unlawful. Using the lens of anomie theory, we investigate: (a) the negative effect of aspects of the institutional context—regulatory burden and lack of industry munificence—on a law‐abiding climate, a type of organizational climate related to unlawful conduct, and (b) the role of socially responsible organizational practices in combating these negative effects. Survey data were collected from 118 firms and analysed using OLS moderated regression. Our results indicate that a manager's perceptions of regulatory burden and lack of industry munificence are negatively related to the extent to which the firm has a law‐abiding climate. Furthermore, our findings shed light on the ability of socially responsible practices to countervail this effect. While the negative effect of perceived regulatory burden on law‐abiding climate weakens when codes of ethics are used more extensively by a firm, it strengthens when firms hold a CSR certification. The latter finding may be due to the lack of enforcement associated with the specific certification considered in our study.