Meeting Abstract 131-7  Sunday, Jan. 7 11:45 – 12:00  Four weeks of wheel access alters lean, fat, and relative organ masses in adult female house mice LOUIS, MP*; CASTRO, AA; CADNEY, MD; KAZZAZI, L; GARLAND JR, T; University of California, Riverside mloui007@ucr.edu Phenotypic plasticity potentially affects all aspects of an organism’s adult phenotype. As an example, many […]

Meeting Abstract 131-6  Sunday, Jan. 7 11:30 – 11:45  Digestive specialization in prickleback fishes (Family Stichaeidae): Liver Transcriptome and Metabolic Rate HERRERA, MJ*; HERAS, J; GERMAN, DP; University of California, Irvine mjherre1@uci.edu Prickleback fishes (Family Stichaeidae) are a unique study system in which to investigate dietary specialization because they consist of closely related species that coexist in […]

Meeting Abstract 131-3  Sunday, Jan. 7 10:45 – 11:00  Biochemical Mechanisms Influencing Countergradient Variation in Lizard Development LENARD, A.N.*; GIFFORD, M.E.; University of Central Arkansas; University of Central Arkansas angie.lenard17@gmail.com Countergradient variation occurs across environmental gradients when environmental and genetic influences on a phenotype oppose each other. An example of this phenomenon is the inherently faster growth […]

Meeting Abstract 130-5  Sunday, Jan. 7 11:15 – 11:30  The Evolution of Extreme Structures: Inferring Function from Pattern O’BRIEN, DM*; ALLEN, CE; VAN KLEECK, MJ; HONE, D; KNELL, R; KNAPP, A; CHRISTIANSEN, S; EMLEN, DJ; University of Montana; University of Montana; University of Hawaii, Manoa; Queen Mary University of London; Queen Mary University of London; Queen Mary […]

Meeting Abstract 130-1  Sunday, Jan. 7 10:15 – 10:30  Sexual selection for flight performance in hummingbirds WILCOX, SC*; CLARK, CJ; Univ. of California, Riverside; Univ. of California. Riverside swilc002@ucr.edu Sexual size dimorphism is a widespread phenomenon in animals. In most cases, in birds and mammals, males are larger than females. However, in several species the reverse is […]

Meeting Abstract 130-2  Sunday, Jan. 7 10:30 – 10:45  Local Density of Conspecifics Affects Sperm Phenotypes in Wild Anolis sagrei Lizards KUSTRA, MC*; KAHRL, AF; REEDY, AM; COX, RM; Univ. of Virginia; Stockholm Univ.; Univ. of Virginia; Univ. of Virginia mck8dg@virginia.edu Theory predicts that males should invest more in ejaculate production when the likelihood of sperm competition […]

Meeting Abstract 130-6  Sunday, Jan. 7 11:30 – 11:45  Intrasexually Selected Weapons RICO-GUEVARA, A*; HURME, KJ; Univ. of California, Berkeley; University of Connecticut a.rico@berkeley.edu http://alejorico.com We propose a practical concept that distinguishes the particular kind of weaponry that is used specifically during same-sex combats, which we term “intrasexually selected weapons” (ISWs). We offer hypotheses to answer the […]

Meeting Abstract 130-3  Sunday, Jan. 7 10:45 – 11:00  How Orange Bars in Juvenile Male Collared Lizards, Crotaphytus collaris, May Affect Their Fitness AGAN, JW*; LOVERN, MB; GRINDSTAFF, JL; FOX, SF; Oklahoma State University; Oklahoma State University; Oklahoma State University; Oklahoma State University justin.agan@okstate.edu Sexual selection is a powerful means to explain sexually dimorphic traits in animals. […]

Meeting Abstract 130-4  Sunday, Jan. 7 11:00 – 11:15  Correlated Evolution of Antlers and Tusks in Cervids LOPEZ, N*; STANKOWICH, T; CSU Long Beach; CSU Long Beach nikkip0603@gmail.com Tusks are mostly seen on smaller ungulates and used primarily as sexual weapons, whereas larger ungulates lack tusks but instead possess antlers, used as a visual display of social […]

Meeting Abstract 129-4  Sunday, Jan. 7 10:45 – 11:00  Why are cephalopod eggs so big? Testing viscosity and the functional limits of swimming in pygmy squid hatchlings. CORDEIRO, M; EDSINGER, E*; Roger Williams University, Providence, RI ; Marine Biological Laboratory, Woods Hole, MA eedsinger@mbl.edu http://ericedsinger.io Cephalopod eggs are exceptionally large compared to other marine invertebrates. Larger eggs […]