scholarly journals Severe limitations of the FEve metric of functional evenness and some alternative metrics

2020 ◽  
Author(s):  
Evsey Kosman ◽  
Samuel M. Scheiner ◽  
Hans‐Rolf Gregorius
Keyword(s):  
Functional Evenness ◽  
Alternative Metrics

Functional evenness of bird communities varies along the elevational gradient in Europe: Conservation implications

2019 ◽  
Author(s):  
Federico Morelli ◽  
Yanina
Keyword(s):  
Species Richness ◽  
Elevation Gradient ◽  
Bird Species ◽  
Elevational Gradient ◽  
Negative Association ◽  
Bird Communities ◽  
Breeding Bird ◽  
Bird Species Richness ◽  
Large Spatial Scale ◽  
Functional Evenness

ContextThe negative association between elevation and species richness is a well-recognized pattern in macro-ecology. ObjectivesThe aim of this study was to investigate changes in functional evenness of breeding bird communities along an elevation gradient in Europe. MethodsUsing the bird data from the EBCC Atlas of European Breeding Birds we estimated an index of functional evenness which can be assumed as a measure of the potential resilience of communities.ResultsOur findings confirm the existence of a negative association between elevation and bird species richness in all European eco regions. However, we also explored a novel aspect of this relationship, important for conservation: Our findings provide evidence at large spatial scale of a negative association between the functional evenness (potential community resilience) and elevation, independent of the eco region. We also found that the Natura2000 protected areas covers the territory most in need of protection, those characterized by bird communities with low potential resilience, in hilly and mountainous areas.ConclusionsThese results draw attention to European areas occupied by bird communities characterized by a potential lower capacity to respond to strong ecological changes, and, therefore, potentially more exposed to risks for conservation.

Evaluating GHGs from Transportation: Alternative Fuels and Alternative Metrics

2014 ◽  
Author(s):  
Greg Schivley ◽  
Joe Marriott ◽  
Matt Jamieson ◽  
Timothy J. Skone ◽  
Paulina Jaramillo
Keyword(s):  
Alternative Fuels ◽  
Alternative Metrics

scholarly journals Astronomy in Chile: Assessment of scientific productivity through a bibliometric analysis

2018 ◽  
Vol 186 ◽  
pp. 05002
Author(s):  
Rodrigo Cortes ◽  
Denise Depoortere ◽  
Lucina Malaver
Keyword(s):  
Bibliometric Analysis ◽  
Citation Impact ◽  
Research Impact ◽  
Scientific Productivity ◽  
Space Research ◽  
Astronomical Observation ◽  
Atmospheric Conditions ◽  
The World ◽  
Conducting Research ◽  
Alternative Metrics

The skies of Northern Chile are considered among the best in the world for astronomy due to their geographical, climatic and atmospheric conditions. In fact, during the last several decades, a great number of astronomical observatories have been built by space research institutions devoted to space research, turning Chile into one of the countries with the greatest astronomical observation capacity in the world. Consequently, it is relevant to explore and assess the development of astronomy in Chile during the last ten years (2005-2015), carrying out a bibliometric analysis to extract traditional metrics, complemented with alternative metrics, to identify the Chilean production and scientific contribution of research in this field of knowledge. The results from traditional metrics, based on the information obtained in the Web of Science (WoS) database analyzed through InCites for the Astronomy & Astrophysics category indicate a sustained increase of the scientific production for the discipline during the last ten years. In particular, the Normalized Citation Impact of organizations and institutions conducting research in Chile is above the worldwide average. On the other hand, the alternative metrics, including for instance, the altmetrics types presented by the SCOPUS database, reflect that the Chilean research impact is much lower in the context of social networks.

A functional evenness index for microbial ecology

1981 ◽  
Vol 7 (4) ◽  
pp. 283-296 ◽  
Author(s):  
Marc Troussellier ◽  
Pierre Legendre
Keyword(s):  
Microbial Ecology ◽  
Evenness Index ◽  
Functional Evenness

Alternative metrics to measure EMS system performance

2017 ◽  
Vol 68 (7) ◽  
pp. 792-808 ◽  
Author(s):  
Ibrahim Çapar ◽  
Sharif H Melouk ◽  
Burcu B Keskin
Keyword(s):  
System Performance ◽  
Alternative Metrics

Riverscape heterogeneity explains spatial variation in zooplankton functional evenness and biomass in a large river ecosystem

2013 ◽  
Vol 29 (1) ◽  
pp. 67-79 ◽  
Author(s):  
Philippe Massicotte ◽  
Jean-Jacques Frenette ◽  
Raphaël Proulx ◽  
Bernadette Pinel-Alloul ◽  
Andrea Bertolo
Keyword(s):  
Spatial Variation ◽  
Large River ◽  
River Ecosystem ◽  
Functional Evenness

scholarly journals The Use of Twitter by Medical Journals: Systematic Review of the Literature (Preprint)

2020 ◽  
Author(s):  
Natalie Erskine ◽  
Sharief Hendricks
Keyword(s):  
Web Of Science ◽  
Research Impact ◽  
Original Research ◽  
Medical Journals ◽  
Journal Clubs ◽  
Academic Medical ◽  
Meta Analyses ◽  
The Relationship ◽  
Journal Impact ◽  
Alternative Metrics

BACKGROUND Medical journals use Twitter to engage and disseminate their research articles and implement a range of strategies to maximize reach and impact. OBJECTIVE This study aims to systematically review the literature to synthesize and describe the different Twitter strategies used by medical journals and their effectiveness on journal impact and readership metrics. METHODS A systematic search of the literature before February 2020 in four electronic databases (PubMed, Web of Science, Scopus, and ScienceDirect) was conducted. Articles were reviewed using the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses) guidelines. RESULTS The search identified 44 original research studies that evaluated Twitter strategies implemented by medical journals and analyzed the relationship between Twitter metrics and alternative and citation-based metrics. The key findings suggest that promoting publications on Twitter improves citation-based and alternative metrics for academic medical journals. Moreover, implementing different Twitter strategies maximizes the amount of attention that publications and journals receive. The four key Twitter strategies implemented by many medical journals are tweeting the title and link of the article, infographics, podcasts, and hosting monthly internet-based journal clubs. Each strategy was successful in promoting the publications. However, different metrics were used to measure success. CONCLUSIONS Four key Twitter strategies are implemented by medical journals: tweeting the title and link of the article, infographics, podcasts, and hosting monthly internet-based journal clubs. In this review, each strategy was successful in promoting publications but used different metrics to measure success. Thus, it is difficult to conclude which strategy is most effective. In addition, the four strategies have different costs and effects on dissemination and readership. We recommend that journals and researchers incorporate a combination of Twitter strategies to maximize research impact and capture audiences with a variety of learning methods. CLINICALTRIAL

scholarly journals Alternative metrics for assessing clinical benefit with immunotherapy in oncology

2018 ◽  
Vol 8 (10) ◽  
pp. e1343774 ◽  
Author(s):  
E. Chan ◽  
C. Quinn ◽  
I. Hirji ◽  
J. Hillengass ◽  
K. Anderson ◽  
...  
Keyword(s):  
Clinical Benefit ◽  
Alternative Metrics
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