Sexual selection and the evolution of condition-dependence: an experimental test at two resource levels.
Sexual selection and the evolution of condition-dependence: an experimental test at two resource levels.
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性选择和条件依赖性的进化:两个资源水平的实验测试。
DOI:
10.1093/evolut/qpac066
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Bath E
中科院分区:
文献类型:
--
作者:
Bath E
Stronger condition-dependence in sexually selected traits is well-documented, but how this relationship is established remains unknown. Moreover, resource availability can shape responses to sexual selection, but resource effects on the relationship between sexual selection and condition-dependence are also unknown. In this study, we directly test the hypotheses that sexual selection drives the evolution of stronger-condition-dependence and that resource availability affects the outcome, by evolving fruit flies (Drosophila melanogaster) under relatively strong or weak sexual selection (through varied sex ratios) and at resource-poor or resource-rich adult diets. We then experimentally manipulated condition via developmental diet and assessed condition-dependence in adult morphology, behavior, and reproduction. We observed stronger condition-dependence in female size in male-biased populations and in female ovariole production in resource-limited populations. However, we found no evidence that male condition-dependence increased in response to sexual selection, or that responses depended on resource levels. These results offer no support for the hypotheses that sexual selection increases male condition-dependence or that sexual selection’s influence on condition-dependence is influenced by resource availability. Our study is, to our knowledge, the first experimental test of these hypotheses. If the results we report are general, then sexual selection’s influence on the evolution of condition-dependence may be less important than predicted.
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DOI:
--
发表时间:
1991
期刊:
Evolution; international journal of organic evolution
影响因子:
--
作者:
E. Hillesheim;S. Stearns
通讯作者:
S. Stearns
影响因子:
2
作者:
Bhumika;A. Singh
通讯作者:
A. Singh
DOI:
--
发表时间:
2008
期刊:
Evolution; international journal of organic evolution
影响因子:
--
作者:
M. Reuter;Jon R. Linklater;L. Lehmann;Kevin Fowler;T. Chapman;G. Hurst
通讯作者:
G. Hurst
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
U. Graf;N. V. Schaik;F. Würgler
通讯作者:
F. Würgler
影响因子:
2
作者:
N. Nur;O. Hasson
通讯作者:
O. Hasson