Martin Stevens, Sami Merilaita's Animal Camouflage: Mechanisms and Function PDF

By Martin Stevens, Sami Merilaita

ISBN-10: 0521199115

ISBN-13: 9780521199117

Within the final decade, study at the formerly dormant box of camouflage has complicated speedily, with quite a few experiences tough conventional recommendations, investigating formerly untested theories and incorporating a better appreciation of the visible and cognitive platforms of the observer. utilizing reports of either genuine animals and synthetic platforms, this ebook synthesises the present kingdom of play in camouflage examine and knowing. It introduces the differing kinds of camouflage and the way they paintings, together with heritage matching, disruptive colour and obliterative shading. It additionally demonstrates the methodologies used to check them and discusses how camouflage pertains to different topics, relatively with reference to what it could actually let us know approximately visible belief. the aggregate of fundamental examine and reports exhibits scholars and researchers the place the sphere at present stands and the place interesting and demanding difficulties stay to be solved, illustrating how the examine of camouflage is probably going to growth sooner or later.

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Extra resources for Animal Camouflage: Mechanisms and Function

Sample text

Probably because the function of background-matching coloration, and how such matching can be achieved, seems so apparent, there have been relatively few studies that have attempted to address background matching in depth. However, our understanding of background matching is still poor, and considering that it has influenced the evolution of appearance in so many taxa, we think it is an important topic deserving of much more attention. ’ Here, we mainly focus on the majority of animals that have not evolved the ability to rapidly change their colours or that are not transparent (such organisms are well covered in Chapters 9, 10, 11, 13 and 14).

2007) developed another model to investigate the optimisation of background-matching appearance in a two-type patch environment. They increased the realism of the model by also allowing predators to optimally change their behaviour with respect to patch choice. The model developed by Houston et al. (2007) lent further support for the conclusion made by Merilaita et al. (1999) that while background-matching prey appearance should under certain conditions be a specialist for one patch type, it can under other conditions be an appearance that is a compromise between several different patch types.

G. Th´ery & Casas 2002; Siddiqi et al. 2004; Stuart-Fox et al. 2004; Cuthill et al. 2005; H˚astad et al. 2005; Stuart-Fox & Moussalli 2008; Defrize et al. 2010). Many animal colour patterns as well as their habitats are patchworks of diverse colours and lightnesses, and sampling such patterns thoroughly with a spectrophotometer is often difficult because spectrometers only provide a small sample of point in space. Stevens and others (2007, 2009b) described how a calibrated digital camera can be used to model how the colours constituting entire patterns stimulate the eye of a given viewer.

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Animal Camouflage: Mechanisms and Function by Martin Stevens, Sami Merilaita


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