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Fly-and-forage strategy in the bat Pipistrellus nathusii during autumn migration

Suba, Jurgis; Petersons, Gunars and Rydell, Jens LU (2012) In Acta Chiropterologica 14(2). p.379-385
Abstract
Populations of Pipistrellus nathusii (Nathusius's bat), an insectivorous aerial-hawking species that breeds in north-eastern Europe, perform long-distance migrations between breeding sites and hibernation areas in central and southern Europe. The feeding strategy of migrating P nathusii was investigated in Latvia on the east coast of the Baltic Sea, exploring evidence for and against two non-mutually exclusive predictions that i) the bats feed shortly after dusk at highest aerial insect activity and continue to migrate thereafter or ii) apply a 'fly-and-forage' strategy and frequently interrupt their migration flight to feed. Echolocation calls and feeding buzzes of P. nathusii were recorded throughout the night from August until September... (More)
Populations of Pipistrellus nathusii (Nathusius's bat), an insectivorous aerial-hawking species that breeds in north-eastern Europe, perform long-distance migrations between breeding sites and hibernation areas in central and southern Europe. The feeding strategy of migrating P nathusii was investigated in Latvia on the east coast of the Baltic Sea, exploring evidence for and against two non-mutually exclusive predictions that i) the bats feed shortly after dusk at highest aerial insect activity and continue to migrate thereafter or ii) apply a 'fly-and-forage' strategy and frequently interrupt their migration flight to feed. Echolocation calls and feeding buzzes of P. nathusii were recorded throughout the night from August until September on a known migration flyway over coastal dunes and at potential foraging sites in adjacent woodlands, over meadows and wetlands. The results indicate that P. nathusii applies a fly-and-forage strategy along the Baltic coast. However, a threshold in aerial insect availability may exist, below which no foraging occurs and migration continues. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Baltic Sea, feeding strategy, Latvia, Pape Ornithological Research, Station
in
Acta Chiropterologica
volume
14
issue
2
pages
379 - 385
publisher
Museum and Institute of Zoology, Polish Academy of Sciences
external identifiers
  • wos:000314855400011
  • scopus:84873200616
ISSN
1508-1109
DOI
10.3161/150811012X661693
language
English
LU publication?
yes
id
0a5e53b9-f9a1-48da-9848-10788c53497a (old id 3577361)
date added to LUP
2013-03-25 09:39:27
date last changed
2017-06-18 04:13:37
@article{0a5e53b9-f9a1-48da-9848-10788c53497a,
  abstract     = {Populations of Pipistrellus nathusii (Nathusius's bat), an insectivorous aerial-hawking species that breeds in north-eastern Europe, perform long-distance migrations between breeding sites and hibernation areas in central and southern Europe. The feeding strategy of migrating P nathusii was investigated in Latvia on the east coast of the Baltic Sea, exploring evidence for and against two non-mutually exclusive predictions that i) the bats feed shortly after dusk at highest aerial insect activity and continue to migrate thereafter or ii) apply a 'fly-and-forage' strategy and frequently interrupt their migration flight to feed. Echolocation calls and feeding buzzes of P. nathusii were recorded throughout the night from August until September on a known migration flyway over coastal dunes and at potential foraging sites in adjacent woodlands, over meadows and wetlands. The results indicate that P. nathusii applies a fly-and-forage strategy along the Baltic coast. However, a threshold in aerial insect availability may exist, below which no foraging occurs and migration continues.},
  author       = {Suba, Jurgis and Petersons, Gunars and Rydell, Jens},
  issn         = {1508-1109},
  keyword      = {Baltic Sea,feeding strategy,Latvia,Pape Ornithological Research,Station},
  language     = {eng},
  number       = {2},
  pages        = {379--385},
  publisher    = {Museum and Institute of Zoology, Polish Academy of Sciences},
  series       = {Acta Chiropterologica},
  title        = {Fly-and-forage strategy in the bat Pipistrellus nathusii during autumn migration},
  url          = {http://dx.doi.org/10.3161/150811012X661693},
  volume       = {14},
  year         = {2012},
}