IYENGAR, V.K.*; EISNER, T.; College of Wooster; Cornell University: Male indifference to female traits in an arctiid moth (Utetheisa ornatrix) Female Utetheisa ornatrix (Lepidoptera: Arctiidae) mate selectively with large males able to transmit sizeable quantities of nutrient and defensive pyrrolizidine alkaloid with the spermatophore. The female gauges male size indirectly by assessment of the male’s […]

LICAMELE, Jason D; TURINGAN, Dr. Ralph; Florida Institute of Technology: Linking development of prey selectivity and feeding functional morphology in marine fish larvae. Extensive collection of marine fishes by the commercial food and marine ornamental industries has accounted for the observed decline in populations and a decrease in overall body size of marine fish. Success […]

AMES, C.A.; WILLIAMS, T.D. *; Simon Fraser Univ., Burnaby: Laying sequence-specific manipulation of maternal hormone profiles: effects on offspring phenotype Although it is becoming clear that maternal transfer of steroids to yolk can have significant effects on offspring phenotype, a major unresolved issue is whether variation in yolk steroids reflect an adaptive, facultative �decision� by […]

SANCHEZ, F.*; KORINE, C.; PINSHOW, B.; DUDLEY, R.; Ben-Gurion University of the Negev; Ben-Gurion University of the Negev; Ben-Gurion University of the Negev; University of California, Berkeley: Is ethanol used as an odor cue to find and assess fruit quality by Egyptian fruit bats? Ethanol is present in all fleshy fruits consumed by vertebrate frugivores. […]

TRAINOR, B. C.; HOFMANN, H. A.; Harvard University; Harvard University: Interactions between the Neuropeptide Somatostatin and Social Plasticity in the African Cichlid Fish Astatotilapia burtoni Hypothalamic neuropeptides play an important role in the regulation of social behavior. Recent research has documented important effects of somatostatin (SS) on dominance behavior, a neuropeptide known previously for its […]

TILDEN, Andrea R.; CRANE , Meredith J.; CARY, Greg A.; PFEIFFER, Aubris L.; SHANAHAN, Kearney J.; Colby College; Colby College; Colby College; Colby College; Colby College: Influence of melatonin on locomotion and metabolic responses to stress in the fiddler crab Uca pugilator Melatonin (MEL) influences locomotor activity in crustaceans, an effect that may be partly […]

GHERARDI, F; ATEMA, J; Univ. of Florence, Italy; BUMP, Woods Hole, Ma: Individual recognition in hermit crabs: learning and forgetting the opponent�s identity One mechanism that permits the maintenance of dominance hierarchies is individual recognition, that is the ability of an animal to recognize a conspecific on the basis of one or more identifying cues. […]

GILCHRIST, S.L.*; JOURDAN, M.C.; SANCHEZ, A.; New College of Florida; New College of Florida; New College of Florida: Impact of shell supply on population changes of Coenobita clypeatus on Bailey’s Cay, Roatan, Honduras The land hermit crab (Coenobita clypeatus) population located on Bailey�s Cay has studied for the past 9 years. Gastropod shells (over 90, […]

GREIVES, Timothy J.; ZYSLING, Devin A.; DEMAS, Gregory E. ; KETTERSON, Ellen D.; Indiana University, Bloomington: Immunological and Behavioral Responses to Experimentally Elevated Testosterone in Female Dark-eyed Juncos (Junco hyemalis): some evidence for possible constraints on evolution? Monogamous songbirds display elevated levels of testosterone (T) prior to nest building, with decreasing levels as reproduction progresses, […]

THOMAS, K. S.; SATTERLIE, R. A.; Arizona State University; Arizona State University: Immunohistochemical Study of the Neuromuscular Organization of the Cubomedusae Tripedalia cystophora We have initiated an investigation of the muscle architecture of cubomedusae as a preliminary to a thorough biomechanical and neurophysiological study of swim mechanics in these agile jellyfish. Using immunohistochemical localization of […]