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The Effect of Food Web Structure on Teleost Fish Brain Size and Morphology in an Aquatic Ecosystem

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dc.contributor.advisor McCann, Kevin
dc.contributor.advisor Laberge, Frédéric Edmunds, Nicholas 2015-08-31T17:47:29Z 2015-08-31T17:47:29Z 2015-08 2015-08-13 2015-08-31
dc.description.abstract Common stabilizing structures in food webs require that organisms at higher trophic positions (i.e. predators) are able to forage flexibly in diverse habitats and respond to changing resource densities. This flexible behaviour requires that organisms have the necessary cognitive abilities to acquire, process, integrate and store information about their environments to make informed behavioural decisions. By using relative brain size as a proxy for cognitive ability, this research assesses the role that cognition plays in the maintenance of food web stabilizing structures. Using 16 species of teleost fish in the Georgian Bay aquatic food web, this research evaluates the association between brain size and morphology, and pelagic-littoral habitat use, habitat coupling, and trophic position. It demonstrates that brain size and brain morphology are woven into the structure of food webs in a manner that ought to promote stability. en_US
dc.language.iso en en_US
dc.subject Brain Size en_US
dc.subject Brain Morphology en_US
dc.subject Food Webs en_US
dc.subject Teleost fish en_US
dc.subject cognitive ability en_US
dc.subject Habitat coupling en_US
dc.subject trophic position en_US
dc.title The Effect of Food Web Structure on Teleost Fish Brain Size and Morphology in an Aquatic Ecosystem en_US
dc.type Thesis en_US Integrative Biology en_US Master of Science en_US Department of Integrative Biology en_US
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