Meeting Abstract 17.1  Thursday, Jan. 3  Ontogeny of rhythmic chewing and masseter activity in a selenodont artiodactyl WILLIAMS, S.H.*; SIDOTE, J.V.; Ohio University, Athens; Ohio University, Athens willias7@ohio.edu Morphological maturation of the masticatory system in selenodont artiodactyls is a relatively slow process. In domesticated species, the full complement of postcanine teeth is not present until 3-5 years. […]

Meeting Abstract 16.4  Thursday, Jan. 3  The nucleic acid sequence and gene structure of the hemoglobins of the brittle star Hemipholis elongata Say CHRISTENSEN, A.B.*; CHRISTENSEN, E.F.; SUKHODOLETS, M.V.; Lamar University, Beaumont, TX; Lamar University, Beaumont, TX; Lamar University, Beaumont, TX christenab@my.lamar.edu The burrowing brittle star Hemipholis elongata expresses two hemoglobins, fraction 1 and fraction 2 that […]

Meeting Abstract 16.5  Thursday, Jan. 3  The effects of varying oxygen levels on size, growth, and development rate in the tobacco hornworm CEASE, Arianne*; ALBERT, Todd; VANDENBROOKS, John; DAVIDOWITZ, Goggy; HARRISON, Jon; Arizona State University; Arizona State University; Arizona State University; University of Arizona; Arizona State University acease@asu.edu Previous studies on fruitflies have shown that their body […]

Meeting Abstract 16.2  Thursday, Jan. 3  Removal of cardiac shunt impairs growth in the American alligator EME, J.; GWALTHNEY, J.; OWERKOWICZ, T.; BLANK, J.M.; HICKS, J.W.*; UC Irvine; UC Irvine; UC Irvine; UC Irvine; UC Irvine jhicks@uci.edu Reptilian cardiac shunting is hypothesized to have adaptive importance in various physiological functions, e.g., inducing hypometabolism, metering lung oxygen during […]

Meeting Abstract 16.3  Thursday, Jan. 3  Flight induced oxidative stress and reduced mitochondrial function in the aging honey bee, Apis mellifera WILLIAMS, J.B.*; ROBERTS, S.P.; ELEKONICH, M.M.; Univ. of Nevada, Las Vegas jason.williams@unlv.edu Reactive oxygen species (ROS) can have profound biological impacts in virtually every tissue and are the basis for the �oxidative stress� theory of aging […]

Meeting Abstract 16.1  Thursday, Jan. 3  Cutaneous respiration in the Humboldt squid, Dosidicus gigas NYACK, A.C.*; SEIBEL, B.A.; Univ. of Rhode Island; Univ. of Rhode Island alnyack@gmail.com Cutaneous respiration in squid via the mantle, which is comprised almost entirely of muscle tissue, has been estimated to contribute 40 � 60% of oxygen demand during routine metabolism. The […]

Meeting Abstract 16.6  Thursday, Jan. 3  Anoxic tolerance and oxygen reperfusion damage in Drosophila LIGHTON, J.R.B.*; SCHILMAN, P.E.; Univ. of Nevada, Las Vegas; Univ. of California, San Diego lighton@sablesys.com The deleterious effects of anoxia followed by reperfusion with oxygen in higher animals including mammals are well known. A convenient and genetically well characterized small-animal model that exhibits […]

Meeting Abstract 15.3  Thursday, Jan. 3  Morphological integration and the role of pleiotropy in the evolution of primate hands and feet ROLIAN, Campbell; Harvard University rolian@fas.harvard.edu Morphological integration is an emergent property of complex organisms whereby certain phenotypic traits covary more strongly than others because of shared functions and/or developmental phenomena such as pleiotropy. The digits of […]

Meeting Abstract 15.2  Thursday, Jan. 3  Developmental mechanisms of plasticity: cellular response to muscle function in skeletal traits YOUNG, R; University of Arizona rlyoung@email.arizona.edu Selection for local adaptation, especially to widely fluctuating environments, often favors greater sensitivity of development to environmental inputs. This sensitivity or plasticity in trait development is often noted across environments; however, the developmental […]

Meeting Abstract 15.1  Thursday, Jan. 3  Can Modular Variation Affect Patterns of Morphological Disparity in the Rodent Mandible? MARQUEZ, E.J.; UNIV. OF MICHIGAN, ANN ARBOR emarquez@umich.edu The relationship between modularity and disparity of mandible shape was studied in 11 species of oryzomyine rodents, using geometric morphometrics. A novel approach in which explicit expectations from hypotheses of modularity […]