KURPIUS, J.W.: Panmixia or genetic differentiation? : Phylogeographic patterns of a planktonic dispersing gastropod in the Eastern Pacific. Most phylogeographic studies focus on organisms that are predicted a priori to have genetic structure. However, there are relatively few studies that test whether species predicted to be panmictic actually are. Using a population genetic approach, this […]

WALKER, J.M.*; HOPKINS, T.S.: Morphological Analysis of Melongena corona Gmelin, 1791 Populations from the Gulf of Mexico (Gastropoda, Melongenidae) The current classification of Melongena corona in the Gulf of Mexico is based on morphological shell characteristics. Within the Gulf, this classification recognizes two species, Melongena corona which consists of three subspecies (Melongena corona corona, Melongena […]

MCFADDEN, C.S.*; HUTCHINSON, M.B.: Hybrid Origin of Soft Coral Species Suggested by Ribosomal DNA Sequence Heterogeneity Throughout its broad Atlanto-Mediterranean geographic range, the soft coral Alcyonium coralloides occurs in sympatry with three closely related species, A. hibernicum, A. sp. M2 and Bellonella bocagei. Although a recent allozyme study indicates the 4 species are reproductively isolated, […]

RAWSON, P*; SLAUGHTER, C; YUND, P: Asymmetric Gametic Incompatibility Among Two Species of Marine Mussel Two species of blue mussel, Mytilus edulis and M. trossulus, are sympatric on the east coast of North America. Although mussels with hybrid genotypes are commonly observed in this region, the frequency of hybrids is low relative to other mussel […]

MCBRAYER, L.D.; Stephen F. Austin State University: The relationship between skull morphology, biting performance and foraging mode in Kalahari lacertid lizards Lizards are a diverse clade in which one radiation of species consists entirely of sit-and-wait foragers and another consists of wide foragers. Lizards utilizing these two foraging modes are known differ in diet, but […]

YANEGA, G; RUBEGA, M; University of Connecticut, Storrs, CT: The hummingbird bill as a utensil for insectivory: prey-capture and transport in the Ruby-throated Hummingbird While it is generally recognized that hummingbirds require protein derived from animal (arthropod) sources, there have been no prior attempts to quantify the mechanics of insectivory in hummingbirds. The stereotypical bill […]

RUBEGA, M.A.; GJERDRUM, C.; YANEGA, G.; University of Connecticut, Storrs; University of Connecticut, Storrs; University of Connecticut, Storrs: Motor pattern conservation and feeding mechanics in Scolopacid shorebirds All but a few of the shorebirds in the Scolopacidae are precocial and entirely self-feeding from hatch, which implies some degree of genetic and phylogenetic determination of the […]

VINCENT, SE*; HERREL , A; IRSCHICK, DJ; Tulane University; University of Antwerp; Tulane University: Kinematic comparisons of aquatic and terrestrial predation in a pitviper, Agkistrodon piscivorus Aquatic foraging in snakes has evolved independently in several different clades of snakes. Thus, aquatic foraging in snakes presents an exceptional opportunity to study convergent evolution in vertebrate feeding […]

WILLIAMS, S.H.*; WALL, C.E.; VINYARD, C.J.; HYLANDER, W.L.; Duke University, Durham, NC; Duke University, Durham, NC; Duke University, Durham, NC; Duke University, Durham, NC: Jaw-muscle motor patterns in ungulates: is there a transverse pattern? Similarities in masticatory apparatus form and jaw movements in artiodactyls and perissodactyls have led to the idea that ungulate grinding is […]

O’NEILL, M.W.*; GIBB, A.C.; Northern Arizona University; Northern Arizona University: Feeding and Respiration in Trinectes maculatus: Half a head is better than one Flatfishes have evolved a benthic lifestyle, where both eyes are present on one side of the head as adults. This results in marked morphological asymmetry, especially in the head and mouth. Hogchokers, […]