Advanced

Black-headed Gulls Chroicocephalus ridibundus capturing chironomids in flight: have flight costs been overestimated?

Källander, Hans LU (2014) In Journal für Ornithologie1852-12-31+01:002004-01-01+01:00 155(3). p.825-827
Abstract
The diurnal and seasonal occurrence of flight foraging for midges (Chironomidae) by Black-headed Gulls Chroicocephalus ridibundus was studied at a shallow semi-eutrophic lake in South Sweden and their capture rates were recorded. The gulls captured 0.28 chiromids s(-1) (1,012 h(-1)). With a dry mass of 2.08 mg ind(-1) and an energy content of 22.7 kJ g(-1), they achieved an energy intake of c.47 kJ h(-1). It seems that estimates of flight costs may have been over-estimated, and it is concluded that aerial feeding on chironomids by Black-headed Gulls results in a positive energy balance.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Black-headed Gull, Chironomids, Energy intake, Flight costs
in
Journal für Ornithologie1852-12-31+01:002004-01-01+01:00
volume
155
issue
3
pages
825 - 827
publisher
Springer
external identifiers
  • wos:000337792500027
  • scopus:84902539477
ISSN
1439-0361
DOI
10.1007/s10336-014-1055-7
language
English
LU publication?
yes
id
1278281b-4f5c-4fa6-a968-6c55c47a49c4 (old id 4608984)
date added to LUP
2014-08-28 15:57:36
date last changed
2017-01-01 05:55:38
@article{1278281b-4f5c-4fa6-a968-6c55c47a49c4,
  abstract     = {The diurnal and seasonal occurrence of flight foraging for midges (Chironomidae) by Black-headed Gulls Chroicocephalus ridibundus was studied at a shallow semi-eutrophic lake in South Sweden and their capture rates were recorded. The gulls captured 0.28 chiromids s(-1) (1,012 h(-1)). With a dry mass of 2.08 mg ind(-1) and an energy content of 22.7 kJ g(-1), they achieved an energy intake of c.47 kJ h(-1). It seems that estimates of flight costs may have been over-estimated, and it is concluded that aerial feeding on chironomids by Black-headed Gulls results in a positive energy balance.},
  author       = {Källander, Hans},
  issn         = {1439-0361},
  keyword      = {Black-headed Gull,Chironomids,Energy intake,Flight costs},
  language     = {eng},
  number       = {3},
  pages        = {825--827},
  publisher    = {Springer},
  series       = {Journal für Ornithologie1852-12-31+01:002004-01-01+01:00},
  title        = {Black-headed Gulls Chroicocephalus ridibundus capturing chironomids in flight: have flight costs been overestimated?},
  url          = {http://dx.doi.org/10.1007/s10336-014-1055-7},
  volume       = {155},
  year         = {2014},
}