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Incubation feeding as a male tactic for early hatching

Nilsson, Jan-Åke LU and Smith, Henrik G. LU (1988) In Animal Behaviour 36(3). p.641-647
Abstract
Male marsh tits, Parus palustris, regularly feed their mates from the beginning of nest building until hatching. Over three periods (the 15 days preceding egg formation, egg formation/laying and incubation) the number of food passes by the male to the female increased significantly. There was a significant negative relationship between the frequency with which the male fed the female in the nest during incubation and the length of the incubation period. Female blue tits, Parus caeruleus, experimentally supplied with food in the nestbox during incubation had a significantly shorter incubation period than control females. Clutches of experimentally fed females also tended to hatch more successfully. It is concluded that feeding of the female... (More)
Male marsh tits, Parus palustris, regularly feed their mates from the beginning of nest building until hatching. Over three periods (the 15 days preceding egg formation, egg formation/laying and incubation) the number of food passes by the male to the female increased significantly. There was a significant negative relationship between the frequency with which the male fed the female in the nest during incubation and the length of the incubation period. Female blue tits, Parus caeruleus, experimentally supplied with food in the nestbox during incubation had a significantly shorter incubation period than control females. Clutches of experimentally fed females also tended to hatch more successfully. It is concluded that feeding of the female by the male is a nutritional contribution and that the shorter incubation period and increased hatching success enhance the fitness of both parents. However, the male should balance the benefits against the costs in time and energy and therefore not necessarily work at a maximal level. In accordance with this is the finding that the male's provisioning rate increased when ambient temperatures decreased. Adverse weather may jeopardize the whole or large proportions of the clutch, thereby significantly reducing the benefit from the current breeding attempt. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Animal Behaviour
volume
36
issue
3
pages
641 - 647
publisher
Elsevier
ISSN
1095-8282
DOI
10.1016/S0003-3472(88)80145-3
language
English
LU publication?
yes
id
a24e6e6f-b052-4882-8526-6a0ffa1c7766
date added to LUP
2017-07-10 15:04:09
date last changed
2017-09-07 16:13:16
@article{a24e6e6f-b052-4882-8526-6a0ffa1c7766,
  abstract     = {Male marsh tits, Parus palustris, regularly feed their mates from the beginning of nest building until hatching. Over three periods (the 15 days preceding egg formation, egg formation/laying and incubation) the number of food passes by the male to the female increased significantly. There was a significant negative relationship between the frequency with which the male fed the female in the nest during incubation and the length of the incubation period. Female blue tits, Parus caeruleus, experimentally supplied with food in the nestbox during incubation had a significantly shorter incubation period than control females. Clutches of experimentally fed females also tended to hatch more successfully. It is concluded that feeding of the female by the male is a nutritional contribution and that the shorter incubation period and increased hatching success enhance the fitness of both parents. However, the male should balance the benefits against the costs in time and energy and therefore not necessarily work at a maximal level. In accordance with this is the finding that the male's provisioning rate increased when ambient temperatures decreased. Adverse weather may jeopardize the whole or large proportions of the clutch, thereby significantly reducing the benefit from the current breeding attempt.},
  author       = {Nilsson, Jan-Åke and Smith, Henrik G.},
  issn         = {1095-8282},
  language     = {eng},
  number       = {3},
  pages        = {641--647},
  publisher    = {Elsevier},
  series       = {Animal Behaviour},
  title        = {Incubation feeding as a male tactic for early hatching},
  url          = {http://dx.doi.org/10.1016/S0003-3472(88)80145-3},
  volume       = {36},
  year         = {1988},
}