Read e-book online Animal Signaling and Function: An Integrative Approach PDF

By Duncan J. Irschick, Mark Briffa, Jeffrey Podos

ISBN-10: 047054600X

ISBN-13: 9780470546000

The variety of animal signs has been greatly documented, and the generality of animal indications additionally tantalizingly means that there are common mechanisms that experience chosen for his or her origin.  in spite of the fact that, whereas a lot development has been made on a few fronts, we nonetheless lack a normal concept approximately why the range of signaling buildings exist.  Our compilation will at once handle this hole via targeting a thrilling new area of sexual choice, specifically utilizing practical methods to appreciate signaling.  This process is rooted within the concept that many signs are designed to transmit vital useful imformation that's either very important for problems with male caliber (and accordingly male competition), and feminine choice.  The expanding use of expertise in sexual choice reports has enabled researchers to check no matter if signaling is both restricted via, or thoroughly transmits information regarding sensible capacities.  extra, in animals that struggle vigorously, sensible capacities similar to persistence or energy may perhaps make the variation among profitable and losing.  This quantity brings together a varied number of researchers who're actively investigating how functionality and signaling are related.  those researchers use both a number of tools and taxa to check animal signaling, and we think that this integrative view is critical to open up clean vistas for why animal signs have advanced.

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Extra resources for Animal Signaling and Function: An Integrative Approach

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2004; McGraw, 2005). , 2005, 2007; McGraw, 2005; Isaksson and Andersson, 2008). , 2005). However, a comparative study has taken this one step further by demonstrating a link between egg-based maternal effects and the expression of carotenoid-based sexual signals. Biard et al. (2009) hypothesized that because maternally derived carotenoids can increase the efficiency of carotenoid metabolism post-hatching, egg-yolk carotenoids may be advantageous to offspring in allocating resources to carotenoid-based sexual signals.

In (a) and (b) demand > supply; in (c) and (d) demand ≈ supply; in (e)–(g) demand ≫ supply. The width of the base represents the total amount of resources acquired. Allocations to growth are donated by the vertical arrows and to maintenance by horizontal arrows, with the width of the arrow in both cases indicating the relative amount of resources allocated to each function. 3). , a is a better strategy than b). , sexual signals). In addition, it is expected that selection will act against allocating extra resources to growth under conditions of relaxed competition, as the costs of oxidative stress will not be offset by any gains in resource acquisition ability.

Journal of Experimental Biology, 209, 4414–4419. P. (2005) Effects of carotenoid availability during laying on reproduction in the blue tit. Oecologia, 144, 32–44. P. (2007) An analysis of pre- and post-hatching maternal effects mediated by antioxidants in the blue tit. Journal of Experimental Biology, 20, 326–339. P. (2009) Maternal effects mediated by antioxidants and the evolution of carotenoid-based signals in birds. American Naturalist, 174, 696–708. J. (1999) Nestling diet, secondary sexual traits and fitness in the zebra finch.

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


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