Hostname: page-component-77f85d65b8-6bnxx Total loading time: 0 Render date: 2026-04-18T18:14:36.241Z Has data issue: false hasContentIssue false

The post-release fate of hand-reared orphaned bats: survival and habitat selection

Published online by Cambridge University Press:  01 January 2023

MT Serangeli
Affiliation:
Laboratorio di Ecologia Applicata, Dipartimento Ar.Bo.Pa.Ve, Facoltà di Agraria, Università degli Studi di Napoli Federico II, via Università 100, I-80055, Portici, Naples, Italy
L Cistrone
Affiliation:
Forestry and Conservation, Via Botticelli 14, I-03043 Cassino, Frosinone, Italy
L Ancillotto
Affiliation:
Dipartimento di Biologia e Biotecnologia ‘Charles Darwin’, Università degli Studi di Roma ‘La Sapienza’, Viale Università 32, I-00185 Rome, Italy
A Tomassini
Affiliation:
Dipartimento di Biologia e Biotecnologia ‘Charles Darwin’, Università degli Studi di Roma ‘La Sapienza’, Viale Università 32, I-00185 Rome, Italy
D Russo*
Affiliation:
Laboratorio di Ecologia Applicata, Dipartimento Ar.Bo.Pa.Ve, Facoltà di Agraria, Università degli Studi di Napoli Federico II, via Università 100, I-80055, Portici, Naples, Italy School of Biological Sciences, University of Bristol, Woodland Road, Bristol BS8 1UG, UK
*
* Contact for correspondence and requests for reprints: danrusso@unina.it

Abstract

Although bats are frequently admitted to rescue centres — mainly as orphans — very little information is available on their survival after release. Our study answered the following questions: i) do hand-reared bats survive over a short time; ii) which activities and habitat selection do they exhibit; iii) are bats loyal to the release area; and iv) are they able to join local colonies? We radio-tracked 21 hand-reared Pipistrellus kuhlii over a two-year period released on a site that differed from that where they were rescued. At the study site they were provided with the same bat boxes used in the rehabilitation room. Nineteen bats were confirmed to survive, stay in the area and actively forage over 4-14 days. Fourteen day roosts in buildings (nine of which hosted a local colony) were used by 12 subjects. Bats travelled less than 5 km in total each night; their most frequent activity was night roosting, followed by foraging and commuting. We recorded typical foraging behaviour, including hunting around street lamps at sites exploited by many conspecifics. A comparison of habitats available within individual home ranges with those within the study area showed that urban areas, riparian vegetation and farmland were equally important and preferred to woodland. When the foraging time spent in each habitat was compared with habitat composition within individual home ranges or within the study area, urban sites were preferred for foraging over all other habitats, followed by farmland and woodland and finally riparian vegetation. Overall, we showed that hand-raised orphaned P. kuhlii may readily adapt to environments they are not familiar with, exhibit a high short-term survival and select key resources in the release area, provided appropriate rehabilitation and training techniques are adopted.

Information

Type
Research Article
Copyright
© 2012 Universities Federation for Animal Welfare

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable