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Full-Text Articles in Morphology

Morphology-Performance Relationships To Understand Cichlid Neurocranial Evolution In The Context Of Adaptive Radiation, Sarah Pascarella Oct 2025

Morphology-Performance Relationships To Understand Cichlid Neurocranial Evolution In The Context Of Adaptive Radiation, Sarah Pascarella

Theses and Dissertations from DePaul University

Cichlid fishes have undergone multiple adaptive radiations in the rift lakes of East Africa pairing rapid taxonomic and morphological diversification. Lake Malawi’s rock-dwelling cichlids (mbuna) have diversified into hundreds of species that partition their habitat by depth and diet resulting in high morphological and behavioral diversity. We characterized morphological differences and performed behavioral assays among four cichlid genera from Lake Malawi focused on understanding form-function relationships in the neurocranium and oral feeding apparatus. We characterized neurocranial shape using 3D geometric morphometrics across a large taxonomic sample of mbuna cichlids, focusing primarily on the Tropheops species complex. Alongside broad changes in …


Building The Roots Of Word Knowledge: Using Morphological Instruction In Latin Roots To Build Word Analysis Skills For Middle School Students., Sara Sukalski May 2024

Building The Roots Of Word Knowledge: Using Morphological Instruction In Latin Roots To Build Word Analysis Skills For Middle School Students., Sara Sukalski

College of Education Theses and Dissertations

Proficient reading requires the ability to analyze words for various properties, including pronunciation, meaning, and syntactical function. However, most instruction in word analysis is limited to phonics instruction provided in the early elementary grades. For older students, whose words largely center units of meaning, or morphemes, early phonics instruction does not provide the multifaceted knowledge of word properties these older students need to manipulate the complex words of their curricula. Therefore, this study examined the effects of direct morphological analysis instruction focusing on Latin roots on middle school students’ ability to orally decode and construct meaning for morphologically complex words. …