التفاصيل البيبلوغرافية
| العنوان: |
Operational sex ratio affects nest tending and aggression in male flagfish Jordanella floridae Goode & Bean. |
| المؤلفون: |
Klug, H., Kontax, C. I., Annis, S., Vasudevan, N. |
| المصدر: |
Journal of Fish Biology; Apr2008, Vol. 72 Issue 6, p1295-1305, 11p, 3 Graphs |
| مصطلحات موضوعية: |
FISH sex ratio, FISH fertility, SEXUAL behavior in fishes, SEXUAL selection, ANIMAL sexual behavior, FISH research |
| مستخلص: |
Operational sex ratio (OSR, the ratio of sexually active males to fertilizable females at a given time and location) affected male behaviour in the flagfish Jordanella floridae. When OSR was male biased, males spent (1) more time at their nests and (2) more time fanning prior to receiving eggs. Pre-mating fanning has previously been correlated with male mating success and is hypothesized to be used in female choice in this population. Thus, these results suggest that on average, male flagfish invest more time in behaviour associated with female choice when there are relatively more male competitors. The OSR also affected the frequency of male aggression, and specifically male aggression towards females was more frequent at female-biased OSR treatments. The observed patterns were dependent upon the direction of OSR bias ( i.e. unbiased, male biased and female biased), and in some cases the intensity of the OSR bias affected the patterns of behaviour. These findings suggest that experimentally detecting effects of OSR is sensitive to the specific OSR values considered, and highlight the importance of considering a range of OSR values in future studies. [ABSTRACT FROM AUTHOR] |
|
Copyright of Journal of Fish Biology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
