Meeting Abstract 9.3  Jan. 4  Cracking the weevil: behavioral plasticity of feeding as a function of prey hardness in the collared lizard HENNINGSEN, J.P.*; LAPPIN, A.K.; NISHIKAWA, K.C.; Northern Arizona University; Northern Arizona University; Northern Arizona University jhenning@nsm.umass.edu A number of studies have demonstrated that lizards modify their feeding behavior based upon prey characteristics. However, in their […]

Meeting Abstract 9.6  Jan. 4  Changes in the mandible with age in carnivorans BINDER, W/J; Loyola Marymount University wbinder@lmu.edu As individuals age, skull morphology has been shown to change and reflect new force distributions. This type of change is especially interesting in carnivoran (members of the Order Carnivora) teeth and jaws, as feeding is so important and […]

Meeting Abstract 9.4  Jan. 4  Bite and grip performance in relation to killing behavior of North American accipiters and falcons SUSTAITA, Diego*; HERTEL, Fritz; University of Connecticut; California State University, Northridge diego.sustaita@uconn.edu Raptors exhibit a wide diversity of attack strategies to disable and/or procure their prey, but ultimately kill using either their beaks or talons, or both. […]

Meeting Abstract 9.2  Thursday, Jan. 3  Ventilation Mechanics in Resting and Swimming Spiny Dogfish DOLCE, J.*; WILGA, C.; Univ. of Rhode Island jdol6206@postoffice.uri.edu Oxygen consumption rates increase with swimming velocity in many fishes. As a result, ram ventilating fishes often enlarge the gape and opecular openings while swimming; however, modulation of suction ventilation mechanics during swimming has […]

Meeting Abstract 9.4  Thursday, Jan. 3  How do feathers produce aerodynamic sounds? Testing the ‘flag’ model CLARK, C. J.*; FEO, T. J.; UC Berkeley; UC Berkeley cclark@berkeley.edu Birds produce a variety of sounds with their feathers. Many of these sounds are aerodynamic, generated by air flowing over individual or combinations of feathers. Although often called whistles, Clark […]

Meeting Abstract 9.5  Thursday, Jan. 3  Fetal load adaptations in the axial skeleton of early bipeds: Australopithecus africanus WHITCOME, KW*; SHAPIRO, L; LIEBERMAN, DE; Harvard University; University of Texas at Austin; Harvard University whitcome@fas.harvard.edu Although humans are not the only living bipedal species, some aspects of human morphology are uniquely adapted to the human style of bipedality. […]

Meeting Abstract 9.1  Thursday, Jan. 3  Examining the role of the amphibian and crocodilian “diaphragm” in aquatic locomotion URIONA, TJ*; FARMER, CG; Univ. of Utah, Salt Lake City; Univ. of Utah, Salt Lake City uriona@biology.utah.edu The convergent evolution of a crocodilian and an amphibian diaphragm suggests this muscle complex has an adaptive function in an aquatic environment. […]

Meeting Abstract 9.6  Thursday, Jan. 3  Elastic energy storage in a contracting poriferan? Quantitative imaging of morphological dynamics using synchrotron radiation based x-ray microtomography (SR-�CT) and in vivo-microradiography NICKEL, M; Institut fuer Spezielle Zoologie und Entwicklungsbiologie, FSU Jena, Germany Nickel@porifera.net The poriferan Tethya wilhelma is a model to investigate early evolved metazoan contractile tissues. The substantial contractions […]

Meeting Abstract 9.5  Sunday, Jan. 4  Sources of variation in the hypothalamic-pituitary-adrenal axis of urban and desert birds. FOKIDIS, H. Bobby*; DEVICHE, Pierre; Arizona State University; Arizona State University bfokidis@asu.edu Glucocorticoids (GCs) are the end products of an endocrine system called the hypothalamic-pituitary-adrenal (HPA) axis, which is activated in all vertebrates in response to stressful stimuli. The […]

Meeting Abstract 9.2  Sunday, Jan. 4  Slight changes in incubation temperature affect early growth and stress endocrinology in wood duck (Aix sponsa) ducklings DURANT, Sarah E*; HEPP, Gary R; MOORE, Ignacio T; HOPKINS, Brittney C; HOPKINS, William A; Virginia Tech, Blacksburg; Auburn Univ, Auburn; Virginia Tech, Blacksburg; Virginia Tech, Blacksburg; Virginia Tech, Blacksburg sdurant@vt.edu Although the effects […]