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Martin U. Grüebler
University of Zurich
4Publications
4H-index
179Citations
Publications 4
Newest
Published on Mar 1, 2010in Journal of Animal Ecology 4.46
Martin U. Grüebler4
Estimated H-index: 4
(University of Zurich),
Beat Naef-Daenzer22
Estimated H-index: 22
(Swiss Ornithological Institute)
Summary 1. Caring for offspring beyond leaving the nest is an important but under-studied part of avian life histories. Theory predicts that prolonged post-fledging parental care should yield fitness benefits such as increased fledgling survival. Post-fledging care is also costly in terms of time and energy available for subsequent reproduction, moult or migration. So far, direct measurements of the fitness effects of the duration of post-fledging parental care are lacking. 2. In a partial cross...
40 Citations Source Cite
Published on Oct 1, 2008in Ecology 4.62
Martin U. Grüebler4
Estimated H-index: 4
(University of Zurich),
Beat Naef-Daenzer22
Estimated H-index: 22
(Swiss Ornithological Institute)
The fitness consequences of a delayed timing of breeding are expected to affect the temporal characteristics of the whole annual breeding system. One major problem in quantifying the fitness relevance of timing is that individual differences between pairs may cause the seasonal trend. Differentials in juvenile survival due to pre-fledging timing decisions often only appear after fledging of the chicks. Therefore, timing decisions in the post-fledging period, i.e., the duration of parental care, ...
57 Citations Source Cite
Published on Jun 1, 2008in Animal Behaviour 3.07
Martin U. Grüebler4
Estimated H-index: 4
(University of Zurich),
Beat Naef-Daenzer22
Estimated H-index: 22
(Swiss Ornithological Institute)
In altricial birds, parental care after fledging should be terminated as soon as the benefits from deserting the young outweigh those from continuing parental care. In seasonal environments, multiple breeders may trade off fitness benefits of the time invested in the care of fledglings of one brood against the benefits of an advanced start of the subsequent clutch. Using radiotelemetry of 494 fledglings in 114 families (of 88 pairs) of the double-brooded barn swallow, Hirundo rustica, we found t...
23 Citations Source Cite
Published on Jan 1, 2008in Agriculture, Ecosystems & Environment 3.54
Martin U. Grüebler4
Estimated H-index: 4
(University of Zurich),
Muriel Morand1
Estimated H-index: 1
(Swiss Ornithological Institute),
Beat Naef-Daenzer22
Estimated H-index: 22
(Swiss Ornithological Institute)
This paper presents a model to predict the daily spatio-temporal variation in the abundance of airborne insects in agricultural landscapes on the basis of publicly available environmental data. Data on the abundance of insects flying near ground level were collected by a robust and effective point-count method. The validation of the model using extra data revealed a high correspondence between predicted and observed insect density. The final model showed that the abundance of airborne insects de...
59 Citations Source Cite
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