Raw GPS data of wild and farmed mallards in southern Sweden

Releasing farmed mallards into the wild is a common practice in wildlife management worldwide, involving millions of birds annually, and is mainly carried out to increase hunting opportunities. Ringing and previous research show that released mallards have low survival also outside the hunting season, and that survivors may compromise migration habits, morphology, and adaptations of the wild population. Detailed local movements of released mallards have not been studied before, despite the importance of spatiotemporal patterns for understanding the impact of releases and their utility for hunting. We studied local movements in August-October of 11 wild and 44 released mallards caught in the same wetland in southern Sweden and provided with GPS tags. Wild mallards moved longer distances than farmed, over the whole diel cycle as well as during three out of four separate periods of the day (dawn, day, and dusk). Mallards of both origins moved the longest distances during dusk and dawn, and..., The dataset includes movement data from mallards fitted with a GPS-logger (CatTraQ, Catnip Technologies, Ltd) in southern Sweden. Data were collected from 44 farmed and released mallards, and 12 wild mallards.
The dataset have been cleaned from data when mallards were caught in the trap. Only local movement data (less than 50km from the release site) is included in the dataset., , # Raw GPS data Wild and farmed mallards

The dataset includes movement data from mallards fitted with a GPS-logger (CatTraQ, Catnip Technologies, Ltd) in southern Sweden. Data were collected from 44 farmed and released mallards, and 12 wild mallards. The dataset consists of 18865 positions.

The dataset have been cleaned from data when mallards were caught in the trap. Only local movement data (less than 50km from the release site) is included in the dataset.

Analyzed data showed a significant difference in movement patterns between wild and farmed mallards. Both wild and farmed mallards move significantly more during dusk and dawn compared to day and night.

## Description of the data and file structure

Dataset consists of 18865 positions (rows). Columns give information about individual ring numbers for identification of individuals (ID). One individual may have data from several GPS-loggers (Tag).

For each individual information on type (farmed=0, wild=1), sex (0=female, 1=male)...