Animal Signaling and Function: An Integrative Approach - download pdf or read online

By Duncan J. Irschick, Mark Briffa, Jeffrey Podos

ISBN-10: 047054600X

ISBN-13: 9780470546000

The variety of animal signs has been extensively documented, and the generality of animal indications additionally tantalizingly means that there are common mechanisms that experience chosen for his or her origin.  despite the fact that, whereas a lot development has been made on a few fronts, we nonetheless lack a common conception approximately why the variety of signaling constructions exist.  Our compilation will at once tackle this hole via targeting an exhilarating new area of sexual choice, specifically utilizing practical techniques to appreciate signaling.  This method is rooted within the concept that many indications are designed to transmit vital practical imformation that's either very important for problems with male caliber (and for that reason male competition), and feminine choice.  The expanding use of know-how in sexual choice reports has enabled researchers to check no matter if signaling is both restricted by means of, or appropriately transmits information regarding sensible capacities.  extra, in animals that struggle vigorously, sensible capacities akin to patience or power may well make the variation among profitable and losing.  This quantity brings together a different number of researchers who're actively investigating how functionality and signaling are related.  those researchers use both a number of equipment and taxa to check animal signaling, and we think that this integrative view is necessary to open up clean vistas for why animal signs have developed.

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Additional resources for Animal Signaling and Function: An Integrative Approach

Example text

Carotenoids have a wide array of other properties, including roles as antioxidants and in the recycling of antioxidants (Surai, 2002). Carotenoids are also immunostimulants. This can occur directly, for example, through the regulation of membrane fluidity and particular cell signaling pathways, or indirectly, via their ability to act as antioxidants to mop up free radicals produced as a consequence of immune system upregulation (Chew and Park, 2004). , 2008). , 2008). , 2005). Further research is therefore required before the importance of carotenoids as antioxidants, and how this relates to the information content of carotenoid-based signals, can be dismissed.

Lipoprotein molecules bind to and transport carotenoids from the intestine and deliver them to the integument and other sites for incorporation into sexual signals. For example, there is a strong correlation between carotenoid-mediated beak coloration and the accumulation of lipoproteins in the blood of zebra finches (Peters, 2000), and evidence suggests that testosterone aids the formation of pivotal carotenoid transporting lipoproteins by upregulating the production of cholesterol, which is a major constituent of these lipoproteins (McGraw and Parker, 2006).

SIGNALS EXPRESSED DURING ADULTHOOD Nutrition during Growth and the Expression of Sexual Signals as an Adult Variation in resources available during development can have profound effects on the allocation of resources in adulthood, particularly in species with strongly sexually selected traits. In stalk-eyed flies Cyrtodiopsis dalmanni, for example, eyespan width in males is a sexually selected trait, with females preferring males with wider eyespans (Wilkinson and Reillo, 1994). , 2000). High quality males can afford to allocate more resources to the sexual signal than poor quality males, at the same cost (Maynard Smith and Harper, 2003).

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Animal Signaling and Function: An Integrative Approach by Duncan J. Irschick, Mark Briffa, Jeffrey Podos

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