{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T02:59:22Z","timestamp":1790823562901,"version":"4.1.0"},"reference-count":81,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2015,7,1]],"date-time":"2015-07-01T00:00:00Z","timestamp":1435708800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Ecological Applications"],"published-print":{"date-parts":[[2015,7]]},"abstract":"<jats:p>Anthropogenic disturbance of wildlife is of growing conservation concern, but we lack comprehensive approaches of its multiple negative effects. We investigated several effects of disturbance by winter outdoor sports on free\u2010ranging alpine Black Grouse by simultaneously measuring their physiological and behavioral responses. We experimentally flushed radio\u2010tagged Black Grouse from their snow burrows, once a day, during several successive days, and quantified their stress hormone levels (corticosterone metabolites in feces [FCM] collected from individual snow burrows). We also measured feeding time allocation (activity budgets reconstructed from radio\u2010emitted signals) in response to anthropogenic disturbance. Finally, we estimated the related extra energy expenditure that may be incurred: based on activity budgets, energy expenditure was modeled from measures of metabolism obtained from captive birds subjected to different ambient temperatures. The pattern of FCM excretion indicated the existence of a funneling effect as predicted by the allostatic theory of stress: initial stress hormone concentrations showed a wide inter\u2010individual variation, which decreased during experimental flushing. Individuals with low initial pre\u2010flushing FCM values augmented their concentration, while individuals with high initial FCM values lowered it. Experimental disturbance resulted in an extension of feeding duration during the following evening foraging bout, confirming the prediction that Black Grouse must compensate for the extra energy expenditure elicited by human disturbance. Birds with low initial baseline FCM concentrations were those that spent more time foraging. These FCM excretion and foraging patterns suggest that birds with high initial FCM concentrations might have been experiencing a situation of allostatic overload. The energetic model provides quantitative estimates of extra energy expenditure. A longer exposure to ambient temperatures outside the shelter of snow burrows, following disturbance, could increase the daily energy expenditure by &gt;10%, depending principally on ambient temperature and duration of exposure. This study confirms the predictions of allostatic theory and, to the best of our knowledge, constitutes the first demonstration of a funneling effect. It further establishes that winter recreation activities incur costly allostatic behavioral and energetic adjustments, which call for the creation of winter refuge areas together with the implementation of visitor\u2010steering measures for sensitive wildlife.<\/jats:p>","DOI":"10.1890\/14-1141.1","type":"journal-article","created":{"date-parts":[[2014,11,24]],"date-time":"2014-11-24T11:03:17Z","timestamp":1416826997000},"page":"1197-1212","source":"Crossref","is-referenced-by-count":83,"title":["Disturbance of wildlife by outdoor winter recreation: allostatic stress response and altered activity\u2013energy budgets"],"prefix":"10.1002","volume":"25","author":[{"given":"Rapha\u00ebl","family":"Arlettaz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S\u00e9bastien","family":"Nussl\u00e9","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marjana","family":"Baltic","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Vogel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rupert","family":"Palme","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susanne","family":"Jenni-Eiermann","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrick","family":"Patthey","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michel","family":"Genoud","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2015,7]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.2006.0434"},{"key":"e_1_2_7_3_1","doi-asserted-by":"crossref","first-page":"137","DOI":"10.2174\/9781608054886113010011","article-title":"Impacts of outdoor winter recreation on alpine wildlife and mitigation approaches: a case study of the Black Grouse","author":"Arlettaz R","year":"2013","journal-title":"The impacts of skiing and related winter recreational activities on mountain environments"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1890\/0012-9658(2000)081[1004:PTATDA]2.0.CO;2"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1474-919X.2007.00638.x"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1196\/annals.1343.008"},{"key":"e_1_2_7_7_1","unstructured":"Bates D. 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