Increased microclimatic variation in artificial nests does not create ecological traps for a secondary cavity breeder, the European roller

Schwartz, Timothée; Genouville, Arnaud; Besnard, Aurélien

doi:10.1002/ece3.6871

Cited by 15 publications

(15 citation statements)

References 69 publications

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“…Hollows with south‐facing entrances tended to be warmer in spring with wider temperature fluctuations in autumn and winter. Warmer temperatures in south‐facing than in north‐facing cavities have also been reported previously (Paclik & Weidinger, 2007; Schwartz et al, 2020; Wiebe, 2001). South‐facing entrances receive more solar radiation (Koyamatsu et al, 2015) and may therefore warm up faster.…”

Section: Discussionsupporting

confidence: 81%

“…Our study also confirms that, relative to the ambient temperature, the temperature within hollows is cooler during warmer seasons but warmer during colder seasons (Maziarz & Wesołowski, 2013;Paclik & Weidinger, 2007;Sedgeley, 2001). Thus, our results support the hypothesis that tree hollows buffer daily temperature fluctuations (Clement & Castleberry, 2013), so providing more stable microclimatic conditions inside than outside (Maziarz & Wesołowski, 2013;Rhodes et al, 2009;Schwartz et al, 2020).…”

Section: Importance Of Tree Characteristics For Microclimatesupporting

confidence: 87%

“…Warmer temperatures in south-facing than in north-facing cavities have also been reported previously (Paclik & Weidinger, 2007;Schwartz et al, 2020;Wiebe, 2001). South-facing entrances receive more solar radiation (Koyamatsu et al, 2015) and may therefore warm up faster.…”

Section: Importance Of Tree Characteristics For Microclimatesupporting

confidence: 70%

See 2 more Smart Citations

Microclimate in hollow trees and how it affects an inhabiting beetle species,Osmoderma eremita

Lindman

Öckinger

Ranius

2022

Ecological Entomology

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1. Studies of species' responses to microclimatic conditions have increased our understanding of their habitat requirements and possible responses to climate warming. However, little is known about the role of microclimate for insects inhabiting hollow trees.2. We explored the relationship between tree characteristics and microclimate, and analysed how the microclimate in tree-hollows affects the occurrence and body size of an endangered beetle species, Osmoderma eremita.3. We placed temperature data-loggers in wood mould (= loose material in tree-hollows) and surveyed O. eremita in 47 hollows in oak pastures in south-eastern Sweden. We found that tree characteristics previously known to be associated with occurrence of beetle species confined to tree-hollows (larger diameters, more wood mould, entrances higher up, and not directed upwards) tend to decrease moisture and moisture variation, while their effects on temperature and temperature fluctuations differ during different seasons. This indicates that microclimatic conditions are important for beetles in hollow trees, and many specialised species seem to avoid conditions that are too moist. 4. O. eremita occurred more frequently in trees with a warmer and more stable microclimate, while adult body size decreased with a warmer microclimate. A positive effect of a warmer microclimate was expected, since the study was done near the northern margin of the species' range. 5. O. eremita is confined to living in hollow trees, which may be due to the microclimate there being more stable in comparison to both the ambient climate and the microclimate in standing and downed dead wood.

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Section: Discussionsupporting

confidence: 81%

Section: Importance Of Tree Characteristics For Microclimatesupporting

confidence: 87%

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Microclimate in hollow trees and how it affects an inhabiting beetle species,Osmoderma eremita

Lindman

Öckinger

Ranius

2022

Ecological Entomology

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“…The aim of earlier visits was to determine the nest-box occupancy, while subsequent visits were conducted to ring chicks and assess the number of fledglings. The final number of fledglings was achieved (corrected retrospectively) by checking the nest boxes for dead hatchlings after the fledging period [34]. For each breeding season, (i) nest-box occupancy (1 indicates occupied if at least one egg was laid, 0 designates unoccupied), (ii) clutch size (number of eggs found in nest box) and (iii) fledging success (number of fledglings, chicks old enough for ringing, the clutch size) were recorded.…”

Section: Nest-box Occupancy and Breeding Parameters Monitoringmentioning

confidence: 99%

Foraging habitat characteristics influence the nest-box occupancy and breeding parameters of European roller (Coracias garrulus) in Serbia

Milinski

Radišić

Arok

et al. 2022

Arch biol sci (Beogr)

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The European roller (Coracias garrulus) is an endangered species whose breeding in Serbia depends almost entirely on nest boxes. The aim of the present study was to assess the influence of prey availability and foraging habitat characteristics on nest-box occupancy and breeding parameters. Data from 20 roller foraging sites over 5 breeding seasons were used in a set of linear regression models to evaluate which factors affect the diversity and biomass of roller prey, as well as nest-box occupancy and breeding parameters. Our analyses revealed that prey availability parameters were significantly affected by the grazing regime and biophysical parameters. An area under grassland negatively affected nest-box occupancy, clutch size and fledging success. In contrast, grazing intensity showed positive effects. Although grazing negatively affected prey diversity and quantity, it potentially increased the likelihood of a successful hunt by forming short vegetation. These results indicate that the habitat characteristics linked to the ability of the species to hunt successfully should be considered when installing nest boxes as a part of the broader management of roller breeding sites. Furthermore, nest-box installation in open agricultural habitats other than grasslands should be considered in the conservation strategy for the species in Serbia.

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“…The effects of increased temperatures in the nest vary across species: prothonotary warblers Protonotaria citrea experienced lower fledging success, whereas Carolina wrens Thryothorus ludovicianus had reduced body condition (Mueller et al 2019). The humidity of a cavity and its effect on its inhabitants (Moyer et al 2002, Heylen et al 2013, Maziarz et al 2017, Schwartz et al 2020) has previously been approached using relative humidity as a measure. However, relative humidity, unlike absolute humidity, is inaccurate as it does not predict a subject's evaporative water loss (Kurta 2014).…”

Section: Introductionmentioning

confidence: 99%

Microclimate shifts in nest‐boxes and natural cavities throughout reproduction

Sudyka

Lecce

Szulkin

2022

Journal of Avian Biology

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Animals breeding in nest‐boxes experience nesting environments in which they did not originally evolve. Despite the central importance of nesting microclimate for offspring fitness, little is known about the thermal properties of human‐provided nest sites compared to natural ones. In particular, comparisons with offspring in the nest are lacking. Here, we compare microclimate (temperature and absolute humidity) from the onset of breeding, thus starting with nest‐site choice and ending with the post‐fledging stage, quantified in natural cavities and nest‐boxes used by several species of hollow‐nesting birds in a temperate deciduous forest. We confirm that across all nesting stages, nest‐boxes were thermally unstable when compared to natural cavities, with higher temperature maximums, larger amplitudes and worse insulation from maximum ambient temperatures relative to natural cavities. Surprisingly, as average humidity of natural cavities was previously shown to be higher than in nest‐boxes, in the presence of actively thermoregulating young, nest‐boxes were more humid than natural cavities. When offspring were in the nest, internal microclimatic shifts were mitigated three times more effectively in natural cavities than in nest‐boxes (in terms of mean daily differences from ambient temperature). Artificial cavity microclimate is likely to amplify the adverse effects of projected temperature increases by compromising thermoregulation of developing animals. We stress that conservation efforts should focus on the protection of areas offering natural breeding‐hollows to reduce the potential impacts of climate change on breeding animals.

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Increased microclimatic variation in artificial nests does not create ecological traps for a secondary cavity breeder, the European roller

Abstract: 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.

Cited by 15 publications

References 69 publications

Microclimate in hollow trees and how it affects an inhabiting beetle species,Osmoderma eremita

Microclimate in hollow trees and how it affects an inhabiting beetle species,Osmoderma eremita

Foraging habitat characteristics influence the nest-box occupancy and breeding parameters of European roller (Coracias garrulus) in Serbia

Microclimate shifts in nest‐boxes and natural cavities throughout reproduction

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