Attractiveness of grasshopper songs correlates with their robustness against noise
AbstractLong-range communication signals commonly serve to attract mates. Evolution of such signals was channeled by 2 classes of constraints: signals have to be conspicuous against background noise and signals should enable the receiver--in particular females that invest heavily in offspring--to assess the sender's quality and attractiveness as a sexual partner. However, as noise in the transmission channel likely conceals quality cues present in signals, these goals may represent opposing selective forces. We explored how noise affects the preferences of choosy female grasshoppers toward the communication signals of individual males. Our prediction was that male signals would become less distinguishable with increasing noise levels and, hence, female preferences for attractive signals would disappear. Here, we show that, contrary to this prediction, the differences in attractiveness between natural male songs were preserved even at high noise levels: the most attractive signals were at the same time particularly robust against masking. We discuss these results in view of a sensory exploitation scenario and a potential reduction of females' costs of choosiness. Copyright 2011, Oxford University Press.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Bibliographic InfoArticle provided by International Society for Behavioral Ecology in its journal Behavioral Ecology.
Volume (Year): 22 (2011)
Issue (Month): 4 ()
Contact details of provider:
Postal: Oxford University Press, Great Clarendon Street, Oxford OX2 6DP, UK
Fax: 01865 267 985
Web page: http://beheco.oxfordjournals.org/
You can help add them by filling out this form.
reading list or among the top items on IDEAS.Access and download statisticsgeneral information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Oxford University Press) or (Christopher F. Baum).
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.