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Documents disponibles écrits par cet auteur (10)
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Article
Luzia Naef-Daenzer, Auteur ; Martin U. Grueebler, Auteur ; Beat Naef-Daenzer, AuteurIn seasonal environments with limited time and energy resources, double-brooded birds face trade-offs in the timing of their two reproductive attempts and in the effort allocated to the first and the second broods. In the Barn Swallow Hirundo ru[...]
Article
Luc Schifferli, Auteur ; Martin U. Grueebler, Auteur ; Harro A. J. Meijer, Auteur ; G. Henk Visser, Auteur ; Beat Naef-Daenzer, AuteurIn altricial birds, the great effort involved in supplying food to nestlings can create trade-offs in the allocation of resources between the current brood and parental self-maintenance. In poor foraging conditions, parents have to adjust their [...]
Article
Martin U. Grueebler, Auteur ; Heidi Schuler, Auteur ; Reto Spaar, Auteur ; Beat Naef-Daenzer, AuteurHarvesting often results in the destruction of both, the nest and the surrounding habitat of ground-nesting farmland birds. While the direct effect of harvesting on nest loss and productivity is well investigated, the behavioural responses of pa[...]
Article
Martin U. Grueebler, Auteur ; Heidi Schuler, Auteur ; Petra Horch, Auteur ; Reto Spaar, AuteurThe main reason for meadow bird declines is supposed to be the intensification of grassland management with earlier first harvest dates and more frequent harvests, resulting in high nest destruction rates. To increase productivity of meadow bird[...]
Article
Olivia Rickenbach, Auteur ; Martin U. Grueebler, Auteur ; Michael Schaub, Auteur ; Andreia Koller, Auteur ; Beat Naef-Daenzer, Auteur ; Luc Schifferli, AuteurMany farmland-breeding wader species have declined across Europe, probably due to reductions in reproductive output caused by high nest losses as a result of agriculture or predation, or low chick survival between hatching and fledging. Most stu[...]
Article
Marco Perrig, Auteur ; Martin U. Grueebler, Auteur ; Herbert Keil, Auteur ; Beat Naef-Daenzer, AuteurIn birds, energy supply during growth is a major predictor of the fledglings' physical condition and survival prospects. Differential quantity and quality of fledglings produced under varying nestling food supplies are likely to affect the numbe[...]
Article
Martin U. Grueebler, Auteur ; Beat Naef-Daenzer, AuteurIn seasonal environments, avian reproductive performance almost generally declines in the course of the season. Quantifying the associated fitness consequences of timing of breeding, i.e. of date-related factors, is important for understanding t[...]
Article
Beat Naef-Daenzer, Auteur ; Martin U. Grueebler, AuteurThe timing of breeding and the chicks' fledging condition are major fitness-relevant traits in the Great Tit Parus major. Yet, the proximate mechanisms relating these traits to differential survival and recruitment are largely unknown. We analys[...]
Article
Anja Bock, Auteur ; Beat Naef-Daenzer, Auteur ; Herbert Keil, Auteur ; Fraenzi Korner-Nievergelt, Auteur ; Marco Perrig, Auteur ; Martin U. Grueebler, AuteurRoost site selection is a state-dependent process, affected by the individual's costs and benefits of roosting at a specific site in the available environment. Costs and benefits of different roost sites vary in relation to intrinsic factors and[...]
Article
Martin U. Grueebler, Auteur ; Beat Naef-Daenzer, AuteurP>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[...]
