Data for: Forecasting shifts in habitat suitability of three marine predators suggests a rapid decline in inter-specific overlap under future climate change ...

• Main Authors: van Beest, Floris, Dietz, Rune, Galatius, Anders, Kyhn, Line, Sveegaard, Signe, Teilmann, Jonas
• Format: Software
• Language: unknown
• Published: Zenodo 2022
• Subjects: Kattegat; Phoca vitulina; Phocoena phocoena
• Online Access: https://dx.doi.org/10.5281/zenodo.6947743; https://zenodo.org/record/6947743

Aim: To estimate spatiotemporal changes in habitat suitability and inter-specific overlap among three marine predators: Baltic grey seals ( Halichoerus grypus grypus ), harbour seals ( Phoca vitulina ), and harbour porpoises ( Phocoena phocoena ) under contemporary and future conditions. Location: The southwestern region of the Baltic Sea, including the Danish Straits and the Kattegat, one of the fastest-warming semi-enclosed seas in the world. Methods: Location data (>200 tagged individuals) were analysed within the maximum entropy (MaxEnt) algorithm to estimate changes in total area size and overlap of species-specific habitat suitability between 1997-2020 and 2091-2100. A total of eleven candidate predictor variables were considered representing anthropogenic activity, environmental, and climate sensitive oceanographic conditions in the area. Sea surface temperature and salinity data were taken from representative concentration pathways [RCPs] scenarios 6.0 and 8.5 to forecast potential climate change ... : Data files with the extension .txt can be opened with a text editor, MS Excel and/or the open-source statistical program R. Data files with the extensions .gri and .grd are raster files that can be opened with QGIS, ArcGIS and /or the open-source statistical program R. Software files with the extension .R are code for statistical analyses of the data and can be opened with the open-source statistical program R. ...