Meeting Abstract 56.1 Tuesday, Jan. 6 Molecular phylogenetics and taxonomy of pilidiophoran nemerteans: tackling a can of worms. SCHWARTZ, M.L.*; NORENBURG, J.L.; Seattle University, WA; Smithsonian Insitution, Washington, DC norenburgj@si.edu Pilidiophoran taxonomy is based on ad hoc morphological character combinations and perceptions of taxa by experts, and it has taken, until recently, only very limited advantage of […]
sessions: Session 56
Hemichordate evolution Derived body plans and suspect families
Meeting Abstract 56.4 Tuesday, Jan. 6 Hemichordate evolution: Derived body plans and suspect families CANNON, JT*; RYCHEL, AL; SWALLA, BJ; HALANYCH, KM; Auburn University; University of Washington; University of Washington; Auburn University cannojt@auburn.edu Hypotheses of deuterostome and early chordate evolution have commonly focused on hemichordates as typifying ancestral forms. Traditional taxonomic schemes divide Hemichordata into two classes, […]
Life history correlates of cortisol and androgen levels in a parental teleost fish
Meeting Abstract 56.2 Tuesday, Jan. 5 Life history correlates of cortisol and androgen levels in a parental teleost fish O’CONNOR, Constance M*; BARTHEL, Brandon L; GILMOUR, Kathleen M; PHILIPP, David P; VAN DER KRAAK, Glen; COOKE, Steven J; Carleton University, Ottawa; University of Illinois, Champagne-Urbana; University of Ottawa, Ottawa; University of Illinois, Champagne-Urbana; University of Guelph, Guelph; […]
Investigating the costs of reproductive anemia associated with egg-production in European Starlings
Meeting Abstract 56.5 Tuesday, Jan. 5 Investigating the costs of reproductive anemia associated with egg-production in European Starlings FRONSTIN, Raime B*; WILLIAMS, Tony D; Simon Fraser University, Burnaby rbf1@sfu.ca Costs of reproduction are widely considered to be a driving force in shaping the evolution of life history traits. Although costs of increased egg production have been well […]
Gene Expression Changes during Early Secondary Oocyte Growth and Onset of Atresia in Coho Salmon
Meeting Abstract 56.1 Tuesday, Jan. 5 Gene Expression Changes during Early Secondary Oocyte Growth and Onset of Atresia in Coho Salmon YAMAMOTO, Y*; LUCKENBACH , JA; GOETZ, FW; YOUNG , G; SWANSON, P; Univ. of Washington, Seattle; Northwest Fisheries Science Center, Seattle; Univ. of Wisconsin, Milwaukee ; Univ. of Washington, Seattle; Northwest Fisheries Science Center, Seattle yojifish@u.washington.edu […]
A functional neuropeptide system in avian gonads
Meeting Abstract 56.6 Tuesday, Jan. 5 A functional neuropeptide system in avian gonads MCGUIRE, Nicolette L.*; KANGAS, Kristina; BENTLEY, George E.; Univ of California, Berkeley; Univ of California, Berkeley; Univ of California, Berkeley nicolette@berkeley.edu Several hormone systems identified in the vertebrate brain and classified as neurohormones are synthesized in and have a localized action on the gonads. […]
A Sexual Shift Induced by an Androgenic Gland Insulin-Like Gene Silencing in Intersex Crayfish
Meeting Abstract 56.3 Tuesday, Jan. 5 A Sexual Shift Induced by an Androgenic Gland Insulin-Like Gene Silencing in Intersex Crayfish ROSEN, O.*; MANOR, R.; WEIL, S.; LINIAL, A.; AFLALO, E.D.; SAGI, A.; Ben-Gurion University of the Negev; Ben-Gurion University of the Negev; Ben-Gurion University of the Negev; Ben-Gurion University of the Negev; Ben-Gurion University of the Negev; […]
Uptake and consequences of yolk androstenedione in male and female chicks
Meeting Abstract 56.1 Thursday, Jan. 6 Uptake and consequences of yolk androstenedione in male and female chicks BENOWITZ-FREDERICKS, ZM*; HODGE, M; CHOW, J; HAUSSMANN, M; Bucknell University; Bucknell University; Bucknell University; Bucknell University zmbf001@bucknell.edu Androstenedione is found in avian egg yolks in large quantities, but its role in development is unclear. One possibility is that males and […]
Testosterone Inhibits Hepatic IGF-I Message in Sceloporus undulatus, a Female-Larger Species of Lizard
Meeting Abstract 56.3 Thursday, Jan. 6 Testosterone Inhibits Hepatic IGF-I Message in Sceloporus undulatus, a Female-Larger Species of Lizard DUNCAN, C.A.**; JOHN-ALDER, H.B.; Rutgers Univ.; Rutgers Univ. duncan@aesop.rutgers.edu In many species of animals, adults of one sex are larger than the other. Sexual dimorphism in body size (SSD) can arise when members of one sex grow faster […]
Seminal Plasma Progesterone Influences Sperm Hole Penetration in White Leghorns
Meeting Abstract 56.5 Thursday, Jan. 6 Seminal Plasma Progesterone Influences Sperm Hole Penetration in White Leghorns ANDERSON, E.M.*; NAVARA, K.J.; University of Georgia, Athens; University of Georgia, Athens erinma@uga.edu While there has been significant interest in identifying the hormonal contributions passed on with gametes by female birds, the hormone content of fluids contributed during reproduction by the […]
