Factors affecting bat occupancy of boxes in managed coniferous forests

AbstractThe gradual conversion of forest stands to single-aged and single-species stands is resulting in the loss of natural roosts for many animal groups. The installation of bat boxes is one solution to compensate for the lack of natural roosting opportunities. The box models differ in their desig...

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Main Authors: M. Jankowska-Jarek, M. Ciechanowski, K. Bidziński, T. Postawa
Format: Article
Language:English
Published: Taylor & Francis Group 2023-07-01
Series:The European Zoological Journal
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/24750263.2023.2220354
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author M. Jankowska-Jarek
M. Ciechanowski
K. Bidziński
T. Postawa
author_facet M. Jankowska-Jarek
M. Ciechanowski
K. Bidziński
T. Postawa
author_sort M. Jankowska-Jarek
collection DOAJ
description AbstractThe gradual conversion of forest stands to single-aged and single-species stands is resulting in the loss of natural roosts for many animal groups. The installation of bat boxes is one solution to compensate for the lack of natural roosting opportunities. The box models differ in their design and material, which to some extent can determine their suitability for bats. We investigated the occupancy of 187 boxes made of wood, ceramic and two sizes concrete with styrofoam; and the intra-seasonal (spring migration, breeding, mating/migration) thermal profile for each type of box. The environment of the boxes was defined by parameters that could directly affect the box’s thermal conditions (solar energy availability), or be related to sociality (distances, obstacles) or food availability (edge of forest, water). The box occupancy depended on the box type and the season: styrofoam-concrete boxes were preferred, with a higher occupancy during the mating and migration period (>75%), whereas the highest species richness occurred in ceramic boxes. Box types also differed significantly in their diurnal thermal profiles: the wooden boxes had inside temperatures similar to outside the box, whereas the styrofoam-concrete and with expanded clay aggregate (ceramic type) averaged 2°C higher. Overall, we found 6 bat species, although we concentrated our analysis on the most common species: Pipistrellus nathusii (88%). For this species, none of the parameters that could affect the box thermal condition had an impact on the occupancy, whereas the presence of obstacles and the distance to a water body, proved to be important. To ascertain that our results may be valid and be the result of differences in the box thermal properties, we tested the relationship of the box occupancy to the latitude, using data available in the literature. The occupancy of wooden boxes from the latter dataset significantly decreases with latitude, whereas for the concrete (with addition of sawdust or styrofoam) it increases, although this relationship is not significant and requires a larger sample.
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spelling doaj.art-f2d50fe50b39411e8b47e18e34cf51462023-07-10T20:06:14ZengTaylor & Francis GroupThe European Zoological Journal2475-02632023-07-0190145446910.1080/24750263.2023.2220354Factors affecting bat occupancy of boxes in managed coniferous forestsM. Jankowska-Jarek0M. Ciechanowski1K. Bidziński2T. Postawa3Department of Vertebrate Ecology and Zoology, Faculty of Biology, University of Gdańsk, Gdansk, PolandDepartment of Vertebrate Ecology and Zoology, Faculty of Biology, University of Gdańsk, Gdansk, PolandDepartment of Vertebrate Ecology and Zoology, Faculty of Biology, University of Gdańsk, Gdansk, PolandLandscape Ecology Team, Institute of Systematics and Evolution of Animals Polish Academy of Science, Krakow, PolandAbstractThe gradual conversion of forest stands to single-aged and single-species stands is resulting in the loss of natural roosts for many animal groups. The installation of bat boxes is one solution to compensate for the lack of natural roosting opportunities. The box models differ in their design and material, which to some extent can determine their suitability for bats. We investigated the occupancy of 187 boxes made of wood, ceramic and two sizes concrete with styrofoam; and the intra-seasonal (spring migration, breeding, mating/migration) thermal profile for each type of box. The environment of the boxes was defined by parameters that could directly affect the box’s thermal conditions (solar energy availability), or be related to sociality (distances, obstacles) or food availability (edge of forest, water). The box occupancy depended on the box type and the season: styrofoam-concrete boxes were preferred, with a higher occupancy during the mating and migration period (>75%), whereas the highest species richness occurred in ceramic boxes. Box types also differed significantly in their diurnal thermal profiles: the wooden boxes had inside temperatures similar to outside the box, whereas the styrofoam-concrete and with expanded clay aggregate (ceramic type) averaged 2°C higher. Overall, we found 6 bat species, although we concentrated our analysis on the most common species: Pipistrellus nathusii (88%). For this species, none of the parameters that could affect the box thermal condition had an impact on the occupancy, whereas the presence of obstacles and the distance to a water body, proved to be important. To ascertain that our results may be valid and be the result of differences in the box thermal properties, we tested the relationship of the box occupancy to the latitude, using data available in the literature. The occupancy of wooden boxes from the latter dataset significantly decreases with latitude, whereas for the concrete (with addition of sawdust or styrofoam) it increases, although this relationship is not significant and requires a larger sample.https://www.tandfonline.com/doi/10.1080/24750263.2023.2220354Artificial roostCentral EuropeChiropteraconservationmicroclimate
spellingShingle M. Jankowska-Jarek
M. Ciechanowski
K. Bidziński
T. Postawa
Factors affecting bat occupancy of boxes in managed coniferous forests
The European Zoological Journal
Artificial roost
Central Europe
Chiroptera
conservation
microclimate
title Factors affecting bat occupancy of boxes in managed coniferous forests
title_full Factors affecting bat occupancy of boxes in managed coniferous forests
title_fullStr Factors affecting bat occupancy of boxes in managed coniferous forests
title_full_unstemmed Factors affecting bat occupancy of boxes in managed coniferous forests
title_short Factors affecting bat occupancy of boxes in managed coniferous forests
title_sort factors affecting bat occupancy of boxes in managed coniferous forests
topic Artificial roost
Central Europe
Chiroptera
conservation
microclimate
url https://www.tandfonline.com/doi/10.1080/24750263.2023.2220354
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