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| 3. |
- Ellegren, H, et al.
(author)
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New tools for sex identification and the study of sex allocation in birds
- 1997
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In: TRENDS IN ECOLOGY & EVOLUTION. - : ELSEVIER SCI LTD. ; 12:7, s. 255-259
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Review (other academic/artistic)abstract
- The recent development of simple, DNA-based methods for the determination of an individual's sex will make possible large-scale studies of sex allocation and the consequence of gender in birds. Birds provide ideal systems for studying these questions in v
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| 4. |
- Ellegren, H, et al.
(author)
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Sex ratio adjustment in relation to paternal attractiveness in a wild bird population
- 1996
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In: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. - : NATL ACAD SCIENCES. - 0027-8424. ; 93:21, s. 11723-11728
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Journal article (other academic/artistic)abstract
- When the relative fitness of sons and daughters differs, sex-allocation theory predicts that it would be adaptive for individuals to adjust their investment in different sexes of offspring. Sex ratio adjustment by females in response to the sexual attract
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| 5. |
- Sheldon, BC, et al.
(author)
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Gender and environmental sensitivity in nestling collared flycatchers
- 1998
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In: ECOLOGY. - : ECOLOGICAL SOC AMER. - 0012-9658. ; 79:6, s. 1939-1948
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Journal article (other academic/artistic)abstract
- In many vertebrates, males are apparently more affected by adverse environmental conditions, particularly during early stages of development, than are females. Three explanations have been proposed for this pattern. First, sexual size dimorphism (SSD) may
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| 6. |
- Sheldon, BC, et al.
(author)
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Offspring sex and paternity in the collared flycatcher
- 1996
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In: PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES. - : ROYAL SOC LONDON. - 0962-8452. ; 263:1373, s. 1017-1021
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Journal article (other academic/artistic)abstract
- Sex allocation theory, when combined with 'genetic benefit' models of female choice, predicts that it would be adaptive for female birds to bias the sex ratio of extra-pair offspring in favour of males. We tested this prediction for a population of collar
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| 7. |
- Sheldon, BC, et al.
(author)
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Paternal effort related to experimentally manipulated paternity of male collared flycatchers
- 1998
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In: PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES. - : ROYAL SOC LONDON. - 0962-8452. ; 265:1407, s. 1737-1742
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Journal article (other academic/artistic)abstract
- The way that variation in paternity affects the optimal level of paternal effort has been a contentious issue, both in terms of theory and the empirical data needed to test competing theories. Clarification of the theoretical issues has led to the predict
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| 8. |
- Sheldon, BC, et al.
(author)
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Paternal genetic contribution to offspring condition predicted by size of male secondary sexual character
- 1997
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In: PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES. - : ROYAL SOC LONDON. - 0962-8452. ; 264:1380, s. 297-302
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Journal article (other academic/artistic)abstract
- Whether females can obtain genetic benefits from mate choice is contentious, and the main problem faced by previous studies of natural populations is that many factors other than paternal genes contribute to offspring fitness. Here, we use comparisons bet
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| 9. |
- Sheldon, BC, et al.
(author)
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Sexual selection resulting from extrapair paternity in collared flycatchers
- 1999
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In: ANIMAL BEHAVIOUR. - : ACADEMIC PRESS LTD. - 0003-3472. ; 57, s. 285-298
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Journal article (other academic/artistic)abstract
- Extrapair paternity has been suggested to represent a potentially important source of sexual selection on male secondary sexual characters, particularly in birds with predominantly socially monogamous mating systems. However, relatively few studies have d
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