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The purpose of this study is to contribute to the understanding of how the potential of altmetrics varies around the world by measuring the percentage of articles with non-zero metrics (coverage) for articles published from a developing region (Latin America).

This study uses article metadata from a prominent Latin American journal portal, SciELO, and combines it with altmetrics data from Altmetric.com and with data collected by author-written scripts. The study is primarily descriptive, focusing on coverage levels disaggregated by year, country, subject area, and language.

Coverage levels for most of the social media sources studied was zero or negligible. Only three metrics had coverage levels above 2 per cent – Mendeley, Twitter, and Facebook. Of these, Twitter showed the most significant differences with previous studies. Mendeley coverage levels reach those found by previous studies, but it takes up to two years longer for articles to be saved in the reference manager. For the most recent year, coverage was less than half than what was found in previous studies. The coverage levels of Facebook appear similar (around 3 per cent) to that of previous studies.

The Altmetric.com data used for some of the analyses were collected for a six month period. For other analyses, Altmetric.com data were only available for a single country (Brazil).

The results of this study have implications for the altmetrics research community and for any stakeholders interested in using altmetrics for evaluation. It suggests the need of careful sample selection when wishing to make generalizable claims about altmetrics.

Mirele Cardoso do Bonfim is Professor of Psychology at Salvador University, Brazil, and she is psychologist at Federal Institute of Education, Science and Technology, Bahia (IFBA). She received her master's degree in Organizational Psychology from Federal University of Bahia. Her primary researches have been focused on emotions at work and emotional labor. C.V.: Available at http://lattes.cnpq.br/2452149954749191