Skiers' footprint on wildlife stress: Tracing the impact of winter sports on black grouse with interactive mapping
Luca Nelli, Lisa Marshall, Michele Battoraro, Geremia Illarietti, Alberto Meriggi, Bruno Bassano, Jason Matthiopoulos, Steve Smith, Rupert PalmeAbstract
Human recreation in mountainous ecosystems, particularly skiing, poses a significant challenge for wildlife conservation, as evidenced by physiological stress responses observed in black grouse (
Lyrurus tetrix
). Here, we present a reusable workflow that integrates noninvasive fecal corticosterone metabolite (FCM) measurements, mixed‐effects modeling, spatial prediction, and an interactive web application to quantify and map stress responses to winter sports. We analyzed 235 fecal samples for corticosterone metabolites as indicators of stress. Using a mixed‐effects model, we observed that FCM levels in black grouse increased with higher skier numbers, particularly in proximity to ski slopes. To enhance understanding and management of these impacts, we then used the fitted model to produce 10‐m resolution stress maps under alternative scenarios and embedded these in an interactive mapping tool, hosted at