Behaviour of brown bears under fluctuating resource availability

Behaviour of brown bears under fluctuating resource availability | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL Ecology and Evolution This is a preprint and has not been peer reviewed. Data may be preliminary. 18 January 2025 V1 Latest version Share on Behaviour of brown bears under fluctuating resource availability Authors : Clara Tattoni 0000-0003-1555-5669 [email protected] , Andrea Corradini , Francesco Chianucci , Marco Ciolli , Roberta Giusti , Natalia Bragalanti , Francesca Cagnacci , Adriano Martinoli , Damiano G. Preatoni , and Francesco Bisi Authors Info & Affiliations https://doi.org/10.22541/au.173720386.60139244/v1 Published Ecology and Evolution Version of record Peer review timeline 288 views 551 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Mast seeding, the variable and intermittent production of seeds, has cascading effects on ecosystem functioning. This study explores its influence on the brown bear populations in the Italian Alps, focusing on beechnuts (Fagus sylvatica L.), the primary food source for bears in the region. Using historical data and field sampling we estimated and mapped the annual seed biomass from 2007 to 2021 for the province of Trento. The energy content of beechnuts was assessed through high heating values (HHV), providing the caloric resources available. Data on beechnuts production, records of damages and GPS data from 16 Eurasian brown bears, were integrated to perform a temporal and spatial analysis at home range and at landscape level. Standardised damages to beehive and livestock decreased during mast years, suggesting that bears met their trophic needs through natural food sources. In fact, bears used more agricultural areas and less beech forest during years of crop failure then in mast years. At landscape level, agriculture and pasture areas, close to beech forests and distant from cities showed higher risk of damage providing a tool to anticipate management actions. This work provides insights on the ecological dynamics and conservation implications of brown bear in the study area by mapping the spatial and temporal aspects of mast seeding and bear related damages. Supplementary Material File (mast_bear.rtf) Download 27.58 MB Information & Authors Information Version history V1 Version 1 18 January 2025 Peer review timeline Published Ecology and Evolution Version of Record 27 Jun 2025 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Collection Ecology and Evolution Keywords ecosystem ecology multiple statistical terrestrial Authors Affiliations Clara Tattoni 0000-0003-1555-5669 [email protected] University of Insubria View all articles by this author Andrea Corradini Fondazione Edmund Mach Istituto Agrario di San Michele all'Adige View all articles by this author Francesco Chianucci CREA Research Center for Forestry and Wood View all articles by this author Marco Ciolli Università degli Studi di Trento Facolta di ingegneria View all articles by this author Roberta Giusti Università degli Studi di Trento Facolta di ingegneria View all articles by this author Natalia Bragalanti Wildlife office Province of Trento View all articles by this author Francesca Cagnacci Fondazione Edmund Mach Centro Ricerca e Innovazione View all articles by this author Adriano Martinoli Universita degli Studi dell\'Insubria View all articles by this author Damiano G. Preatoni Università degli Studi dell'Insubria View all articles by this author Francesco Bisi Università degli Studi dell'Insubria View all articles by this author Metrics & Citations Metrics Article Usage 288 views 551 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Clara Tattoni, Andrea Corradini, Francesco Chianucci, et al. Behaviour of brown bears under fluctuating resource availability. Authorea . 18 January 2025. DOI: https://doi.org/10.22541/au.173720386.60139244/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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