By L. A. Giraldeau
Why may still behavioral ecologists pay any consciousness to cognitive approaches? may poultry music complexity have developed as a technique to promulgate an individual's cognitive features? is proscribed consciousness an optimum process or just a processing constraint? may still stories of spatial studying be moved to the sector? Can released studies of behavioral innovation be used as a handy degree of an animal's cognitive skill within the box? 4 the world over well-known audio system mentioned those and different questions on the symposium 'Ecology and the principal worried procedure' in Montreal in the course of the assembly of the foreign Society for Behavioral Ecology. Their contribution offered during this e-book, illustrate the level to which cognitive methods and the important apprehensive constructions that aid them were formed by means of typical choice to satisfy the demanding situations of the ecological situations within which they function.
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Additional resources for Brain, Behavior and Evolution (Vol. 63, No. 4, April 2004: Ecology and the Central Nervous System: 9th Biennial Congress of the International Society for Behavioral Ecology, Montreal, July 2002)
Canady et al.  found in marsh wrens (Cistothorus palustris) that HVC and RA are 30– 50% larger in birds from western North America than in birds from eastern North America – a difference paralleled by a three fold difference in song repertoire between the two groups. Furthermore, there was a significant correlation within both the eastern and western samples between song repertoire and HVC volume. Logically, the difference in song repertoire could be due to differences in the quality or content of tutoring.
The correlations of HVC volume with the volumes of related nuclei of the song system as well as with the volume of the entire remaining telencephalon suggest that it might not be possible to build and sustain a larger HVC without increasing the size of afferent and efferent structures and of more general integrative brain regions. This would mean that overall brain weight and energetic demands could be constraints on expression of a larger HVC. DeVoogd Finally, it is possible that simply selecting for a larger HVC does not necessarily lead to a more complex song.
Should we focus on whole brains, large areas like the mammalian isocortex and avian hyperstriatum, or more restricted structures such as the hippocampus? How should interspecific cognitive differences be assessed? Is cognition organized into separate ‘modules’ or is there such a thing as a general problem-solving ability that transcends behavioral domains and different ecological demands? A variety of comparative research programs (briefly reviewed below) have used different approaches and assumptions to address these and related questions.
Brain, Behavior and Evolution (Vol. 63, No. 4, April 2004: Ecology and the Central Nervous System: 9th Biennial Congress of the International Society for Behavioral Ecology, Montreal, July 2002) by L. A. Giraldeau