التفاصيل البيبلوغرافية
| العنوان: |
Winter feeding influences the cost of living in boreal passerines |
| المؤلفون: |
Broggi, J. (Juli), Hohtola, E. (Esa), Koivula, K. (Kari) |
| بيانات النشر: |
John Wiley & Sons |
| سنة النشر: |
2020 |
| المجموعة: |
Jultika - University of Oulu repository / Oulun yliopiston julkaisuarkisto |
| مصطلحات موضوعية: |
Blue Tit, Cyanistes caeruleus, Poecile montanus, Willow Tit, basal metabolic rate, mass-adjusted basal metabolic rate, whole-animal basal metabolic rate |
| الوصف: |
The plastic regulation of internal energy reserves is acknowledged as the main adaptive response to winter conditions of resident small birds in northern latitudes, a strategy that may be altered whenever human‐supplemented food is available. We investigated the effects of supplementary feeding on the energy management strategy of two wild passerine species, the Willow Tit Poecile montanus and Blue Tit Cyanistes caeruleus, wintering in boreal conditions by measuring body mass and the energy cost of living, i.e. basal metabolic rate. Individuals of both species were heavier, larger and exhibited a higher energy cost of living when captured at the feeders than were individuals captured away from feeders. Fed Willow Tits expended more energy in maintenance, although this difference disappeared once mass was accounted for. Conversely, Blue Tits at feeders had higher mass‐adjusted energy cost of living, but only at low ambient temperatures. The results indicate that winter feeding has species‐specific effects on overall energy management strategy and modifies the response to environmental conditions of wintering passerines. |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| الاتاحة: |
http://urn.fi/urn:nbn:fi-fe202101121578 |
| Rights: |
info:eu-repo/semantics/openAccess ; © 2020 The Authors. Ibis published by John Wiley & Sons Ltd on behalf of British Ornithologists' Union. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. ; https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: |
edsbas.FF7F859B |
| قاعدة البيانات: |
BASE |