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| Content Provider | Springer Nature Link |
|---|---|
| Author | Osor, José L. Morales, Judith More, Juan Meri, Santiago Tomás, Gustavo Vásquez, Rodrigo A. |
| Copyright Year | 2006 |
| Abstract | We present evidence of differential maternal allocation to eggs in response to manipulated male attractiveness in the migratory pied flycatcher (Ficedula hypoleuca). We manipulated the size of a male secondary sexual trait, the white forehead patch, right after male arrival to the breeding area and before female arrival. Patch size was (1) enlarged to the maximum observed in the population, (2) reduced by 40% or (3) kept constant by painting with indelible felt markers over the natural feather patch. Male behaviour was affected by the experimental manipulation, as individuals with enlarged patches performed more approaches to the nestbox in response to song playback during the territory occupation and nest-site presentation phases. Females paired with males with reduced forehead patches laid significantly smaller eggs than those paired with males in the control and enlarged-patch treatments. Laying date and clutch size did not differ among the experimental groups. We discuss that manipulations of ornaments designed to study differential allocation at laying should reduce as well as enlarge their expression. |
| Starting Page | 605 |
| Ending Page | 611 |
| Page Count | 7 |
| File Format | |
| ISSN | 00218375 |
| Journal | Journal für Ornithologie |
| Volume Number | 147 |
| Issue Number | 4 |
| e-ISSN | 14390361 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2006-08-12 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Differential maternal allocation Egg size Ficedula hypoleuca Forehead patch size Evolutionary Biology Animal Ecology Zoology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Animal Science and Zoology |
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