Tim R Hofmeester 🦡🦦

@timhofmeester.bsky.social

126 Followers 150 Following

he/him Assoc. prof. @SLU Umeå (northern Sweden). Wildlife biologist with a weird fascination for conservation technology, small carnivores and running in the forest

Scatterplot showing the relationship between the reduction in annual snow days (x-axis) and annual mismatch (number of days) (y-axis). The relationship is positive, so hares are more mismatched in locations where the reduction in snow is largest.
Camera-trap image showing a moulting mountain hare (white hare with some brown dots in its fur) in a green boreal forest landscape where the snow already disappeared.
Map of Norway with almost 700 black dots showing the locations of camera traps. In the background, the map shows a digital elevation map. Camera traps were spread throughout Norway, from the far south to about 69 degrees north.
Graphical abstract of the manuscript. In the top-left, it shows a map of Norway with lots of black dots representing camera-trap locations. In the top-right, it shows a camera-trap image of a white mountain hare in a snowfree landscape. These represent 8 years of camera-trap data from 2011-2018. In the bottom-left, it shows a scatterplot showing an increase in camouflage mismatch with an increase in the reduction of days with snow cover between two periods (1959-1988 and 1989-2018). In the bottow-right, it shows two maps of Norway, showing the number of days during which mountain hare moult timing was mismatched with the start and end of winter. On the left, the relationship with snow in the period 1959-1966, and on the right the relationship with the period 2011-2018. It shows that the moulting phenology of mountain hares during 2011-2018 was better matched with the snow conditions during the 1960s than the snow conditions during the 2010s, suggesting that mountain hares have adapted to previous snow conditions and are not able to keep up with the speed at which snow conditions are changing today.
Northern-hawl owl sitting in a dead tree looking into the camera