BAGATTO, B; University of Akron: Ontogeny of Cardiovascular Regulation in the Zebrafish (Danio rerio): Plasticity During Environmental Changes Both sympathetic and parasympathetic components of the autonomic nervous system innervate the myocardium and the pacemaker region of the fish heart. Modulation of the vagal action or tonus on the fish heart is a major regulatory mechanism […]

BURGGREN, W.W.; Univ. of North Texas: How Developing Animals Ignore Physiological Dogma Ecological physiology is replete with time-honored guiding principles that have emerged precisely because they seem so universal in their application (e.g. allometric determination of physiological rates; linkage of function to form; size-dependent need for convective blood transport; acclimitization to environmental change, etc.). Yet, […]

VARSAMOS, S.; NEBEL, C.; CHARMANTIER, G.*; Univ. of Montpellier, France: Fitted to fit: Ontogeny of Osmoregulation in Fish Salinity and its variations are among the key factors that affect survival, metabolism and distribution during the fish development. The successful establishment of a fish species in a given habitat depends on the ability of each developmental […]

CRESPI, E.J.*; DENVER, R.J.; Univ. of Michigan, Ann Arbor: Corticotropin-releasing hormone regulates locomotion and foraging behaviors in spadefoot toad (Spea hammondii) tadpoles and juveniles Corticotropin-releasing hormone (CRH) and corticosterone (CORT) are primary components of the vertebrate stress axis and are involved in food intake regulation. We investigated the effects of CRH and CORT on foraging […]

Meeting Abstract S11-2.3  Monday, Jan. 7  The advantages of gynodioecy vs. dioecy in plants CASE, A.L.*; Kent State University acase@kent.edu Plants exhibit the full spectrum of variation in both gender expression and sexual systems. Individuals can be male, female, simultaneous hermaphrodites, or sequential hermaphrodites. Populations can be comprised of any combination of these sexes, making plants an […]

Meeting Abstract S11-2.2  Monday, Jan. 7  Genetics, Genomics, and the Evolution of Temperature-dependent Sex Determination in Reptiles RHEN, Turk*; SCHROEDER, Anthony; FAGERLIE, Ruby; LEGGE, Heath; WESSMAN, Laurel; HEIMLER, Jon; BONAPACE-POTVIN, Michelle; ZHANG, Kurt; University of North Dakota turk.rhen@email.und.edu Temperature-dependent sex determination (TSD) is found in some fish and amphibians and many reptiles. Yet, the gene(s) that transduces […]

Meeting Abstract S11-2.1  Monday, Jan. 7  Environmental influences on sex determination in flatfishes GODWIN, J*; LUCKENBACH, JA; HOLLER, BL; DANIELS, HV; BORSKI, RJ; North Carolina State University; National Oceanic and Atmospheric Administration; North Carolina State University; North Carolina State University; North Carolina State University John_Godwin@ncsu.edu Flatfishes of several genera display unusual sex determination patterns where both genetic […]

Meeting Abstract S11-2.4  Monday, Jan. 7  A reaction norm perspective on sex and mate choice AH-KING, Malin*; GOWATY, Patricia A.; Uppsala University; Univ. of California, Los Angeles Malin.Ah-King@gender.uu.se Sex is often seen as an essentially discrete trait, ensuing certain characteristics and “roles”. However, sex and sexual characters and behaviors are reaction norms, that is all phenotypes emerge […]