Dear all, We are pleased to announce our latest paper: Rodrigo H. Tardin, Yongwan Chun, Sheila M. Simão & Maria Alice S. Alves (2019) Habitat use models of spatially auto-correlated data: a case study of the common bottlenose dolphin, *Tursiops truncatus truncatus*, in southeastern Brazil,Marine Biology Research, DOI: 10.1080/17451000.2019.1644773 <https://doi.org/10.1080/17451000.2019.1644773> Abstract: A common approach to studying habitat use in cetaceans is to conduct line-transect surveys, to investigate their distribution. In developing countries, there are limited resources for data collection. One solution is to employ field surveys to collect a wide range of ecological and behavioural data, for which a haphazard sampling schedule is adopted, to optimize the cost–benefit ratio. As with line-transect surveys, the haphazard sampling may lead to spatial autocorrelation (SAC), an overlooked problem in ecology. Here, we investigated common bottlenose dolphins (*Tursiops truncatus truncatus*) habitat use on an upwelling area and tested an approach that can improve model-based inference on auto-correlated data. We collected data in Cabo Frio, Rio de Janeiro, photo-identified 429 individuals and compared the predictions and model coefficients of standard generalized linear model (GLM) without correcting for spatial autocorrelation with a spatial eigenvector generalized linear model (SEV-GLM) which compensates for SAC. Our best SEV-GLM predicted dolphins are more likely to occur on cold waters with increased chlorophyll concentration, indicating dolphins are influenced by the upwelling. Moreover, by correcting for SAC, our models had a better fit to data, magnified the relevance of significant variables and showed smaller and less clumped residuals than when not correcting. The paper is available at: https://www.tandfonline.com/doi/full/10.1080/17451000.2019.1644773 or email me at: rhtardin@gmail.com. Cheers, Rodrigo Rodrigo Tardin Pós-doutorando - Departamento de Ecologia - IB - UFRJ Pesquisador Associado - Laboratório de Bioacústica e Ecologia de Cetáceos D.Sc. em Ecologia e Evolução - IBRAG - UERJ ----- Post-doctoral fellow - Ecology department - IB - UFRJ (RJ, Brazil) D.Sc. in Ecology and Evolution - UERJ Associate scientist at Cetacean Bioacoustics and Ecology Lab http://lattes.cnpq.br/3231576901208672 http://orcid.org/0000-0002-0807-6937 http://www.researcherid.com/rid/J-6566-2013 https://lbec.jimdo.com/