Authors:Adriano S. Melo, Luis Mauricio Bini, and Priscilla Carvalho
We assessed the contribution of Brazilian limnologists (freshwater ecologists) in international journals in the period 1970-2004.
Brazilian contribution was low and regular in the 1970's, but increased steeply after 1980 with no signs of stabilization
until the present. Articles authored by Brazilians tend to be less cited than articles authored by non-Brazilians, although
this difference is reduced in co-authored articles with international researchers. Brazilian articles are not distributed
homogenously among the sub-areas of Limnology, but present some biases that can be explained by intellectual legacy. Brazil
has invested since the 1970's in establishing postgraduate courses in Brazil and in the last years has turned the focus to
a better qualification of these courses. We believe these are the main reasons for the conspicuous development of Brazilian
Authors:André Padial, João Nabout, Tadeu Siqueira, Luis Bini, and José Diniz-Filho
Citation frequency has been considered a biased surrogate of publication merit. However, previous studies on this subject
were based on small sample sizes and were entirely based on null-hypothesis significance testing. Here we evaluated the relative
effects of different predictors on citation frequency of ecological articles using an information theory framework designed
to evaluate multiple competing hypotheses. Supposed predictors of citation frequency (e.g., number of authors, length of articles)
accounted for a low fraction of the total variation. We argue that biases concerning citation are minor in ecology and further
studies that attempt to quantify the scientific relevance of an article, aiming to make further relationships with citation,
are needed to advance our understanding of why an article is cited.