Wintering Conditions and Heat Loss during Hibernation in the Brown Long-Eared Bat
The aim of this study was to estimate heat loss in the brown long-eared bat during hibernation depending on the refugioclimate conditions. The measured values of refugioclimate parameters were: ambient temperature (Ta) 3–10 °C, relative humidity (Rh) 74–98% and air velocity (v) 0.06–0.95 m/s. Heat l...
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MDPI AG
2024-01-01
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Online Access: | https://www.mdpi.com/2076-3417/14/2/716 |
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author | Grzegorz Kłys Joanna Makuchowska-Fryc |
author_facet | Grzegorz Kłys Joanna Makuchowska-Fryc |
author_sort | Grzegorz Kłys |
collection | DOAJ |
description | The aim of this study was to estimate heat loss in the brown long-eared bat during hibernation depending on the refugioclimate conditions. The measured values of refugioclimate parameters were: ambient temperature (Ta) 3–10 °C, relative humidity (Rh) 74–98% and air velocity (v) 0.06–0.95 m/s. Heat loss was calculated using convective heat transfer equations. Mean heat loss amounted to 4 W/m<sup>2</sup>. The results were compared to the heat loss calculated based on the fat burned during hibernation. Bats flying into underground systems during the hibernation period were captured and their body mass was measured. A loss of body mass of 2.6 g over the 126 days of hibernation was observed. Heat loss equalled 3.115 W/m<sup>2</sup>K.The presented method of calculating energy expenditure allows for non-invasive monitoring of the heat and fat losses of bats during hibernation. Such research may find application in designing artificial wintering sites. |
first_indexed | 2024-03-08T09:58:24Z |
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issn | 2076-3417 |
language | English |
last_indexed | 2024-03-08T09:58:24Z |
publishDate | 2024-01-01 |
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spelling | doaj.art-0a0ee183695d4e28bbda60fcad69bc412024-01-29T13:43:55ZengMDPI AGApplied Sciences2076-34172024-01-0114271610.3390/app14020716Wintering Conditions and Heat Loss during Hibernation in the Brown Long-Eared BatGrzegorz Kłys0Joanna Makuchowska-Fryc1Institute of Biology, University of Opole, ul. Oleska 22, 45-052 Opole, PolandInstitute of Environmental Engineering and Biotechnology, University of Opole, ul. Kardynała B. Kominka6, 6a, 45-032 Opole, PolandThe aim of this study was to estimate heat loss in the brown long-eared bat during hibernation depending on the refugioclimate conditions. The measured values of refugioclimate parameters were: ambient temperature (Ta) 3–10 °C, relative humidity (Rh) 74–98% and air velocity (v) 0.06–0.95 m/s. Heat loss was calculated using convective heat transfer equations. Mean heat loss amounted to 4 W/m<sup>2</sup>. The results were compared to the heat loss calculated based on the fat burned during hibernation. Bats flying into underground systems during the hibernation period were captured and their body mass was measured. A loss of body mass of 2.6 g over the 126 days of hibernation was observed. Heat loss equalled 3.115 W/m<sup>2</sup>K.The presented method of calculating energy expenditure allows for non-invasive monitoring of the heat and fat losses of bats during hibernation. Such research may find application in designing artificial wintering sites.https://www.mdpi.com/2076-3417/14/2/716chiroptera<i>Plecotusauritus</i>thermoregulationmicroclimate selectionhibernation monitoring |
spellingShingle | Grzegorz Kłys Joanna Makuchowska-Fryc Wintering Conditions and Heat Loss during Hibernation in the Brown Long-Eared Bat Applied Sciences chiroptera <i>Plecotusauritus</i> thermoregulation microclimate selection hibernation monitoring |
title | Wintering Conditions and Heat Loss during Hibernation in the Brown Long-Eared Bat |
title_full | Wintering Conditions and Heat Loss during Hibernation in the Brown Long-Eared Bat |
title_fullStr | Wintering Conditions and Heat Loss during Hibernation in the Brown Long-Eared Bat |
title_full_unstemmed | Wintering Conditions and Heat Loss during Hibernation in the Brown Long-Eared Bat |
title_short | Wintering Conditions and Heat Loss during Hibernation in the Brown Long-Eared Bat |
title_sort | wintering conditions and heat loss during hibernation in the brown long eared bat |
topic | chiroptera <i>Plecotusauritus</i> thermoregulation microclimate selection hibernation monitoring |
url | https://www.mdpi.com/2076-3417/14/2/716 |
work_keys_str_mv | AT grzegorzkłys winteringconditionsandheatlossduringhibernationinthebrownlongearedbat AT joannamakuchowskafryc winteringconditionsandheatlossduringhibernationinthebrownlongearedbat |