BIERMAN, HS; SCHRIEFER, JE; HALE, ME; Univ. of Chicago; Univ. of Chicago; Univ. of Chicago: Head and tail retraction in startle behaviors of the bichir Erpetoichthys. Startle response behaviors and motor patterns vary markedly among fish species and with the type of stimulus eliciting the response. The family Polypteridae (the bichirs) is an excellent group […]

KALTENBACH, J.C.; FASZEWSKI, E.E.; Mount Holyoke College; Wheelock College: Glycoconjugates in larval and adult skin of the bullfrog, Rana catesbeiana In general, amphibian skin is composed of epidermis, glands (which release secretions onto the epidermal surface), and dermal connective tissue containing a ground substance layer (GSL). The question then arises, are specific glyconjugates present in […]

HOMBERGER, D. G.; Louisiana State Univ., Baton Rouge: Function, ecology and evolution of two morphological bill types of Psittaciformes The Psittaciformes (parrots and cockatoos) are considered a uniform avian orders based on their diagnostic features: (a) their curved beak with the upper bill tip projecting over the shorter lower bill, and (b) their prehensile foot. […]

SKALSKY, J.L.; Texas A&M University: Floret morphlogical analysis of a putative Silphium (Asteraceae) hybrid population Silphium albiflorum Gray (Asteraceae), an endemic to the central part of Texas, is considered to be derived from S. laciniatum L., also known as the compass plant. S. laciniatum is found from Texas to Minnesota and the ranges of the […]

WELCH, A.M.*; GERHARDT, H.C.; SEMLITSCH, R.D.; Univ. of North Carolina, Chapel Hill; Univ. of Missouri, Columbia; Univ. of Missouri, Columbia: Female preference strength and male call duration affect offspring fitness in gray tree frogs Courtship displays can signal genetic quality, and the enhanced fitness of offspring sired by males with extreme displays can impose selection […]

ZORRILLA, S.*; WINDEL, N.; Univ. of the Ozarks; Univ. of the Ozarks: Extrinsic factors that affect the timing of armadillo activity The timing of above ground activity and the extrinsic factors that may influence this activity in nine-banded armadillos (Dasypus novemcinctus) were studied in two Arkansas populations during June and July 2001 and June 2002. […]

THOMPSON, M.D.*; KIM, H.-W.; MYKLES, D.L.; Colorado State University; Colorado State University; Colorado State University: Expression of Troponin-C Isoforms in Lobster Skeletal Muscle Troponin-C (TnC) is a calcium-binding subunit of the heterotrimeric troponin complex that mediates calcium-dependent contraction in skeletal muscle. Isoforms are differentially expressed in fast and slow skeletal muscles of American lobster, Homarus […]

SLUSHER, L.; MISQUITH, G.; GAVERWITZ, L.; CASOTTI, G.; West Chester University: Expression and localization of aquaporin homologs in the avian kidney Aquaporins (AQP�s) are membrane integral proteins involved in the passage of water across cell membranes in animals, plants and bacteria. We examined the kidneys of house sparrows for the presence of nine different aquaporin […]

KAM, J.C.*; MILLIGAN, C.L.; The University of Western Ontario, London: Exercise Recovery in Fish: Fuel Substrate Preference duing Muscle Glycogen Resynthesis In rainbow trout, the relative contributions of carbohydrate, lipid and protein to fuel muscle glycogen resynthesis following exhaustive exercise are unclear. The purpose of this study was to examine fuel preference by trout white […]

COOPER, R.L.; VIELE, K.; STROMBERG , A.J.; Dept. Biology, Univ. of Kentucky, Lexington, KY, USA; Dept. Statistics, Univ. of KY; Dept. Statistics, Univ. of KY: Estimating the number of release sites and probability of firing within the nerve terminal by statistical analysis of synaptic charge Investigating the function of individual synapses is essential to understanding […]