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Evicting cuckoo nestlings from the nest: a new anti-parasitism behaviour
- Nozomu J. Sato, Kihoko Tokue, R. Noske, Osamu K. Mikami, K. Ueda
- BiologyBiology Letters
- 23 February 2010
A previously unknown anti-parasitism behaviour in the large-billed Gerygone, which is a host species of the little bronze-cuckoo, a host-evicting brood parasite, suggests that the evolutionary pathway may be quite different from those of previously studied cuckoo–host systems.
Differences in effects of radiation on abundance of animals in Fukushima and Chernobyl
Abundance of birds in Fukushima as judged from Chernobyl.
Horsfield's Hawk-Cuckoo Nestlings Simulate Multiple Gapes for Begging
A form of visual signaling used by the evicting Horsfield's hawk-cuckoo (Cuculus fugax) to obtain sufficient food is described, where the chick displays a gape-colored patch on the wing to the host parents as they deliver food, simulating the gaping display of more than one nestling.
Female Barn Swallows Gain Indirect but not Direct Benefits through Social Mate Choice
The present study supports the recent suggestion that the pattern of sexual selection on tail streamer length in barn swallows varies geographically, and indicates that females gain indirect benefits but not direct benefits, in terms of feeding of young, on choosing social mates.
Mangrove Gerygones Gerygone laevigaster eject Little Bronze-cuckoo Chalcites minutillus hatchlings from parasitized nests
The Arctic Warbler Phylloscopus borealis - three anciently separated cryptic species revealed
Songs and calls from throughout the range of the Arctic Warbler are analysed, and it is concluded that these differ markedly and consistently among the populations representing the three mitochondrial clades.
Social structure and helping behaviour of the Grey-crowned Babbler Pomatostomus temporalis
- Kazuhiro Eguchi, Noriyuki M. Yamaguchi, K. Ueda, H. Nagata, M. Takagi, R. Noske
- BiologyJournal of Ornithology
- 31 July 2007
Small groups should recruit helpers to maintain the group and enhance reproductive success in the Grey-crowned Babbler Pomatostomus temporalis, suggesting that cooperative breeding was obligatory in this population.
Old divergences in a boreal bird supports long-term survival through the Ice Ages
The Arctic Warbler separated into three main clades in close succession around the Pliocene/Pleistocene border, with the two northern clades diverging last.
The Egg Dilution Effect Hypothesis: A Condition Under which Parasitic Nestling Ejection Behaviour will Evolve
A new hypothesis is presented, termed the egg Dilution effect, which argues that parasitic cuckoo eggs serve to ensure host egg survival through the dilution effect and protect against parasitism by multiple females and it is therefore beneficial for hosts to accept cuckoos eggs even if they are capable of discriminating cuckoff eggs from their own.