MEPS

Marine Ecology Progress Series

MEPS is a leading hybrid research journal on all aspects of marine, coastal and estuarine ecology. Priority is given to outstanding research that advances our ecological understanding.

Online: ISSN 1616-1599

Print: ISSN 0171-8630

DOI: https://doi.org/10.3354/meps

Impact Factor2.1 (JCR 2025 release)

Article Acceptance Rate52.2% (2024)

Average Time in Review216 days (2024)

Total Annual Downloads2.920.989 (2025)

Volume contents
Mar Ecol Prog Ser 720:161-174 (2023)

Distribution and habitat use modelling from satellite tracking data of humpback whales in Brazil agrees with shipboard survey data modelling

ABSTRACT: Statistical modelling of animal distributions has been widely applied to explain how mobile species use their habitats. The distribution of and habitat use by humpback whales Megaptera novaeangliae off the eastern coast of Brazil have previously been investigated by modelling visual survey data. Here, we modelled distribution in their breeding range using individual tracking data to compare ecological inferences with those from previous models from line transect data. A generalised estimating equation framework was used to model the tracking data and pseudo-absences as functions of spatial covariates. Covariates considered were latitude and longitude, sea surface temperature (SST), current and wind speeds near the surface, distances to shelf-break and the coast, sea bottom depth and slope, and a factor variable representing ‘shelter’. Two modelling exercises were developed: a habitat use model (HUM) and a distribution model (DIM). Covariates retained in the selected HUM were SST, distance to coast and shelf-break, current and wind speeds and shelter. Covariates retained in the selected DIM were latitude/longitude, current speed and distances to shelf-break and coast. The modelled relationships between whale occurrence and environmental covariates using tracking data were similar to those using line transect data. Distribution maps were also similar, supporting higher densities around the Abrolhos Archipelago and to its south. We showed that habitat use and distribution of this population in the area could be similarly inferred by modelling either line transect or tracking data. Using these 2 approaches in conjunction can strengthen the understanding of important ecological aspects of animal populations.

KEYWORDS

Guilherme A. Bortolotto (Corresponding Author)

  • Sea Mammal Research Unit & Scottish Oceans Institute, University of St Andrews, St Andrews KY16 8LB, UK
  • Centre for Research into Ecological and Environment Modelling, University of St Andrews, St Andrews KY16 9LZ, UK
  • Instituto Aqualie, Juiz de Fora 36036-330, MG, Brazil
gabdo@st-andrews.ac.uk

Alexandre N. Zerbini (Co-author)

  • Instituto Aqualie, Juiz de Fora 36036-330, MG, Brazil
  • Cooperative Institute for Climate, Ocean and Ecosystem Studies, University of Washington & Marine Mammal Laboratory, Alaska Fisheries Science Center, Seattle, WA 98115, USA
  • Marine Ecology and Telemetry Research, Seabeck, WA 98380, USA
  • Laboratório de Ecologia Comportamental e Bioacústica, Programa de Pós-graduação em Biodiversidade e Conservação da Natureza, Universidade Federal de Juiz de Fora, Juiz de Fora 36036-900, MG, Brazil

Len Thomas (Co-author)

  • Centre for Research into Ecological and Environment Modelling, University of St Andrews, St Andrews KY16 9LZ, UK

Artur Andriolo (Co-author)

  • Instituto Aqualie, Juiz de Fora 36036-330, MG, Brazil
  • Laboratório de Ecologia Comportamental e Bioacústica, Programa de Pós-graduação em Biodiversidade e Conservação da Natureza, Universidade Federal de Juiz de Fora, Juiz de Fora 36036-900, MG, Brazil

Philip S. Hammond (Co-author)

  • Sea Mammal Research Unit & Scottish Oceans Institute, University of St Andrews, St Andrews KY16 8LB, UK
  • Centre for Research into Ecological and Environment Modelling, University of St Andrews, St Andrews KY16 9LZ, UK