Meeting Abstract 71.3 Jan. 7 Thyroid hormones increase rates of resting metabolism and skeletal growth in hatchling archosaurs OWERKOWICZ, T.; University of Adelaide, South Australia tomasz.owerkowicz@adelaide.edu.au Palaeontologists suggest that bone microstructure of fossils can be used to infer whether an extinct animal was endo- or ectothermic. This is based on the assumption that resting metabolic rate (RMR) […]
year: 2007
The developmental mechanism and evolution of allometry in Drosophila
Meeting Abstract 71.4 Jan. 7 The developmental mechanism and evolution of allometry in Drosophila SHINGLETON, A.W.; Michigan State University shingle9@msu.edu The developmental mechanisms that control the relationship between final body size and organ size in animals are virtually unknown. This relationship, called static allometry, arises because variation in adult body size is accompanied by corresponding variation in […]
Patterns of cranial skeleton ontogeny in Syngnathidae a comparison between Syngnathus rostellatus and Hippocampus capensis
Meeting Abstract 71.5 Jan. 7 Patterns of cranial skeleton ontogeny in Syngnathidae: a comparison between Syngnathus rostellatus and Hippocampus capensis LEYSEN, Heleen*; JOUK, Philippe; ADRIAENS, Dominique; Ghent University; Antwerp Zoo; Ghent University heleen.leysen@ugent.be The special reproductive strategies of Syngnathidae, their elongated snout without teeth, the fastest food intake among teleosts and the vertical position in the water […]
Implementation of a developmental model for growth of the post-metamorphic echinoid skeleton
Meeting Abstract 71.2 Jan. 7 Implementation of a developmental model for growth of the post-metamorphic echinoid skeleton ZACHOS, Louis G.; The University of Texas at Austin zachos@mail.utexas.edu The changes in shape of an echinoid skeleton or test during post-metamorphic ontogeny result from a precise interrelationship between growth of individual plates (accretion), introduction of new plates at the […]
How to be a miniature turtle comparisons of ontogeny in the Emydinae using geometric morphometrics
Meeting Abstract 71.6 Jan. 7 How to be a miniature turtle: comparisons of ontogeny in the Emydinae using geometric morphometrics ANGIELCZYK, Kenneth; Univ. of Bristol k.angielczyk@bris.ac.uk Miniaturization is a widespread phenomenon among animals, and often is accompanied by profound changes in morphology, physiology, and development. An obvious question to ask about miniaturized species is how their ontogenies […]
Does growth rate differ across altitudes in deer mice
Meeting Abstract 71.1 Jan. 7 Does growth rate differ across altitudes in deer mice? RUSSELL, GA*; HAMMOND, KA; Univ. of California, Riverside; Univ. of California White Mountain Research Station; Univ. of California, Riverside gruss001@student.ucr.edu When faced with a hypoxic challenge (e.g. high altitude), young growing mammals may respond by using energy that otherwise would have been allocated […]
Why the long face Prey capture in trumpetfishes
Meeting Abstract 70.4 Jan. 7 Why the long face? Prey capture in trumpetfishes HUSKEY, Steve*; QUINTERO, Reyes; Western Kentucky University; Western Kentucky University steve.huskey@wku.edu Feeding in fishes has received a tremendous amount of attention to better understand the evolution of vertebrate feeding mechanisms. Application of technologies such as high-speed video, sonomicrometry, and DPIV have assisted in helping […]
The forces exerted by suction feeders on their prey
Meeting Abstract 70.3 Jan. 7 The forces exerted by suction feeders on their prey DAY, SW*; WAINWRIGHT, PC; Rochester Inst. of Tech.; Univ. of California, Davis steven.day@rit.edu Suction feeders feed by generating a flow of water that quickly transports prey into their mouth. All of the forces that the predator exerts on the prey item are caused […]
Evidence for passive suction feeding in Pacific Bluefin tuna, Thunnus orientalis
Meeting Abstract 70.2 Jan. 7 Evidence for passive suction feeding in Pacific Bluefin tuna, Thunnus orientalis BAHLMAN, Joseph Wm*; WAINWRIGHT, Peter C.; Brown University; University of California at Davis Joseph_Bahlman@brown.edu Suction feeding is the most widespread and commonly used mechanism of prey capture in teleost fishes. In all described examples, this behavior involves the rapid expansion of […]
Cyprinodont premaxillary protrusion and prey capture does mechanism dictate behavior
Meeting Abstract 70.1 Jan. 7 Cyprinodont premaxillary protrusion and prey capture: does mechanism dictate behavior? FERRY-GRAHAM, L.A.*; GIBB, A.C.; Calif. State Univ./Moss Landing Marine Labs; Northern Arizona Univ. lfgraham@mlml.calstate.edu Premaxilla protrusion is thought to confer a number of feeding advantages in teleost fishes. Cyprinodontiformes (Atheriniformes, Acanthopterygii) exhibit protrusion where the descending process of the premaxilla does not […]