Humans profoundly affect animal distributions by directly competing for space, not only transforming, but actively using their habitat. Anthropogenic disturbance is usually measured via structural proxies such as infrastructure and land use that overlook the impact of human presence, or functional disturbance. In this study, we propose a methodology unifying two paradigms, human mobility and animal movement, to fill this gap. We developed a novel spatially-explicit index of anthropic disturbance, the Cumulative Outdoor activity Index (COI), and validated it with ground truth observations derived from camera trapping (r = +0.63, p < 0.001). Building on previous work from Peters et al. (2015, Biol. Cons. 186, 123–133) on a Critically Endangered brown bear population in the Alps, we used Resource Selection Analysis to assess the influence of different forms of anthropogenic disturbance on the relative probability of habitat selection. The intensity of COI provided an effective measure of functional anthropogenic disturbance, and it outperformed all alternative and commonly-used proxies of structural disturbance in predicting bear habitat use. Our predictions suggest that brown bear shrinks its ecological niche as a consequence of intense human use of otherwise suitable habitat. These constraints may limit the potential range expansion of bears to establish a viable Alpine-Dinaric metapopulation. Conclusive conservation and future land use planning towards human-wildlife coexistence should account for the functional presence of humans on the landscape. The proposed COI could help determine where mitigation measures should be enforced.

Corradini, A.; Randles, M.; Pedrotti, L.; van Loon, E.; Passoni, G.; Oberosler, V.; Rovero, F.; Tattoni, C.; Ciolli, M.; Cagnacci, F. (2021). Effects of cumulated outdoor activity on wildlife habitat use. BIOLOGICAL CONSERVATION, 253: 108818. doi: 10.1016/j.biocon.2020.108818 handle: http://hdl.handle.net/10449/65696

Effects of cumulated outdoor activity on wildlife habitat use

Corradini, A.
Formal Analysis
;
Cagnacci, F.
Project Administration
2021-01-01

Abstract

Humans profoundly affect animal distributions by directly competing for space, not only transforming, but actively using their habitat. Anthropogenic disturbance is usually measured via structural proxies such as infrastructure and land use that overlook the impact of human presence, or functional disturbance. In this study, we propose a methodology unifying two paradigms, human mobility and animal movement, to fill this gap. We developed a novel spatially-explicit index of anthropic disturbance, the Cumulative Outdoor activity Index (COI), and validated it with ground truth observations derived from camera trapping (r = +0.63, p < 0.001). Building on previous work from Peters et al. (2015, Biol. Cons. 186, 123–133) on a Critically Endangered brown bear population in the Alps, we used Resource Selection Analysis to assess the influence of different forms of anthropogenic disturbance on the relative probability of habitat selection. The intensity of COI provided an effective measure of functional anthropogenic disturbance, and it outperformed all alternative and commonly-used proxies of structural disturbance in predicting bear habitat use. Our predictions suggest that brown bear shrinks its ecological niche as a consequence of intense human use of otherwise suitable habitat. These constraints may limit the potential range expansion of bears to establish a viable Alpine-Dinaric metapopulation. Conclusive conservation and future land use planning towards human-wildlife coexistence should account for the functional presence of humans on the landscape. The proposed COI could help determine where mitigation measures should be enforced.
Strava
COI
Bio-logging
Human-wildlife conflict
Ursus arctos
Habitat selection
Settore BIO/07 - ECOLOGIA
2021
Corradini, A.; Randles, M.; Pedrotti, L.; van Loon, E.; Passoni, G.; Oberosler, V.; Rovero, F.; Tattoni, C.; Ciolli, M.; Cagnacci, F. (2021). Effects of cumulated outdoor activity on wildlife habitat use. BIOLOGICAL CONSERVATION, 253: 108818. doi: 10.1016/j.biocon.2020.108818 handle: http://hdl.handle.net/10449/65696
File in questo prodotto:
File Dimensione Formato  
2021 BC Corradini.pdf

solo utenti autorizzati

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 2.79 MB
Formato Adobe PDF
2.79 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10449/65696
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 25
  • ???jsp.display-item.citation.isi??? 24
social impact