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a), but as far as we are aware rescue behaviour has not been reported in any birds yet. Here, we report four cases of Seychelles warblers ( Acrocephalus sechellensis ) attempting to rescue group members. In this species, individuals sometimes become entangled in seed clusters of the tree Pisonia

In: Behaviour
Author: Jan Komdeur

this problem by making the assumption that dominants either have complete or partial control of reproduction by subordinates. This study clearly indicates that in the cooperatively breeding Seychelles warbler ( Acrocephalus sechellensis ) this assumption is not met. Seychelles warblers occupy year

In: Behaviour

-biased dispersal cannot be considered a species or population constant. Our study also highlights the importance of collecting long-term datasets to understand complex behaviour such as natal dispersal. Keywords : natal dispersal, sex bias, territory quality, habitat change, sex ratio, Acrocephalus sechellensis

In: Behaviour

. Acad. Sci. USA 95: 9390-9395. Richardson, D.S., Jury, F.L., Blaakmeer, K., Komdeur, J. & Burke, T. (2001). Parentage assignment and extra-group paternity in a cooperative breeder: the Seychelles warbler ( Acrocephalus sechellensis ). — Mol. Ecol. 10: 2263-2273. Richardson, D.S., Jury, F.L., Dawson, D

In: Behaviour

in a closed, saturated population of the Seychelles warbler ( Acrocephalus sechellensis ), and found a negative effect of density on males only. Hihi and hihi conservation The hihi (or stitchbird, Notiomystis cincta ) is an endangered forest passerine endemic to New Zealand’s North Island (Ewen et al

In: Behaviour
Author: Ian C.W. Hardy

Warbler (Acrocephalus sechellensis) is an insectivorous pas- serine, native to just one small island in the Indian Ocean. J. Komdeur (Univ. Groningen, NL) has shown that the island is saturated with warbler territories of varying quality (in terms of food availability). Young adults often remain in their

In: Netherlands Journal of Zoology

-Lemaire, F. 1994. The song of the Seychelles Warbler (Acrocephalus sechellensis) and its African relatives. Ibis 136: 489-491. Dowsett-Lemaire, F. & Dowsett, R.J. 1987b. European reed and marsh warblers in Africa: migration patterns, moult and habitat. Ostrich 58: 65-85. Duckworth, J.W. 1991. Responses of

In: The Reed Warblers

might or might not benefit recipients, depending on external conditions (Wright & Russell, 2008; Cockburn & Russel, 2011; Griesser et al., 2017). For example, in the Seychelles warbler ( Acrocephalus sechellensis ) helpers increase the fitness of their parents when inhabiting good-quality territories

In: Behaviour
Authors: Dik Heg and Jan Komdeur

provided by Komdeur (2005) in the Seychelles warbler ( Acrocephalus sechellensis ). Seychelles warbler dominant females do not apply behavioural mechanisms to prevent subordinates from laying in the dominant’s nest in situations when suppression of subordinate production would be adaptive. Lack of dominant

In: Behaviour

: the Seychelles warbler ( Acrocephalus sechellensis ). — Mol. Ecol. 10: 2263-2273. Saether, B.E. (1990). Age-specific variation in reproductive performance of birds. — Curr. Ornithol. 7: 251-283. Schmoll, T., Dietrich, V., Winkel, W., Epplen, J.T. & Lubjuhn, T. (2003). Long-term fitness consequences of

In: Behaviour