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Reduced habitat quality increases intrinsic but not ecological costs of reproduction.
Michel VT, Tschumi M, Naef-Daenzer B, Keil H, Grüebler MU. Michel VT, et al. Ecol Evol. 2022 Apr 19;12(4):e8859. doi: 10.1002/ece3.8859. eCollection 2022 Apr. Ecol Evol. 2022. PMID: 35462972 Free PMC article.
We experimentally investigated the survival costs of reproduction for adult little owls (Athene noctua) within a gradient of habitat quality. We supplemented food to nestlings, thereby relieving the parents' effort for brood provisioning. We used radio-tracking and Bayesia …
We experimentally investigated the survival costs of reproduction for adult little owls (Athene noctua) within a gradient of habitat quality …
Reproductive consequences of farmland heterogeneity in little owls (Athene noctua).
Michel VT, Naef-Daenzer B, Keil H, Grüebler MU. Michel VT, et al. Oecologia. 2017 Apr;183(4):1019-1029. doi: 10.1007/s00442-017-3823-6. Epub 2017 Jan 28. Oecologia. 2017. PMID: 28132106
Clutch size was correlated with the amount of food-rich habitat close to the nest irrespective of female home-range size, suggesting importance of landscape complementation. Nestling survival was positively correlated with male home-range size, suggesting importance of lan …
Clutch size was correlated with the amount of food-rich habitat close to the nest irrespective of female home-range size, suggesting importa …
Physiological responses to increased brood size and ectoparasite infestation: Adult great tits favour self-maintenance.
Wegmann M, Voegeli B, Richner H. Wegmann M, et al. Physiol Behav. 2015 Mar 15;141:127-34. doi: 10.1016/j.physbeh.2015.01.017. Epub 2015 Jan 16. Physiol Behav. 2015. PMID: 25600467
Furthermore, we found no interactive effect of the two treatments on adults. However, nestlings in infested nests had lower body mass and lower survival. Nestlings in enlarged broods were lighter and had lower survival, although parents of enlarged broods increased …
Furthermore, we found no interactive effect of the two treatments on adults. However, nestlings in infested nests had lower body mass …
Parasites suppress immune-enhancing effect of methionine in nestling great tits.
Wegmann M, Voegeli B, Richner H. Wegmann M, et al. Oecologia. 2015 Jan;177(1):213-21. doi: 10.1007/s00442-014-3138-9. Epub 2014 Nov 14. Oecologia. 2015. PMID: 25395313
Using a 2 2 experimental design, we first infested half of the nests with hen fleas (Ceratophyllus gallinae) on day 3 post-hatch and later, on day 9-13 post-hatch, and then supplemented half of the nestlings within each nest with an immuno-enhancing amino acid (methionine) …
Using a 2 2 experimental design, we first infested half of the nests with hen fleas (Ceratophyllus gallinae) on day 3 post-hatch and later, …