Meeting Abstract 26.5 Wednesday, Jan. 5 Living Fossils? The Phylogeny and Fossil Record of Branchiopod Crustaceans HEGNA, T. A.; Yale Univ., New Haven, CT thomas.hegna@yale.edu Branchiopods are a small and morphologically diverse clade of predominantly freshwater crustaceans; likely crown-group representatives have been in existence since the Devonian Period (over 360 mya). Branchiopoda consists of several groups: the […]
year: 2011
Chelicerate tagmosis inferred homeotic development in extinct taxa
Meeting Abstract 26.1 Wednesday, Jan. 5 Chelicerate tagmosis: inferred homeotic development in extinct taxa WOLFE, Joanna M.*; LEGG, David A.; Yale University; Imperial College London jo.wolfe@yale.edu Arthropod tagmosis is the differentiation of segments along the anterior/posterior axis, producing appendages specialized for sensation, feeding, and locomotion. Characters relating to segment and limb number and morphology are important in […]
The response of Pacific tree frog (Pseudacris regilla) tadpoles to invasive predatory crayfish a comparison of anti-predator traits between naïve and exposed tadpoles
Meeting Abstract 25.3 Wednesday, Jan. 5 The response of Pacific tree frog (Pseudacris regilla) tadpoles to invasive predatory crayfish: a comparison of anti-predator traits between naïve and exposed tadpoles PEASE, K. M.*; WAYNE, R. K.; University of California, Los Angeles; University of California, Los Angeles kpease@ucla.edu Invasive species are widely recognized as a serious ecological threat; the […]
The evolution of physiological systems and the emergent properties of regulatory networks
Meeting Abstract 25.1 Wednesday, Jan. 5 The evolution of physiological systems and the emergent properties of regulatory networks COHEN, Alan A; Université de Sherbrooke aacohen1.bus@gmail.com Evolutionary ecologists are interested in how selection on life history traits may be mediated by the underlying physiology. Unfortunately, many fundamental predictions for physiological investment have not been borne out. This appears […]
Evolution as an Ecological Force Evolution of Inflorescence Size Causes a Shift in the Plant-associated Insect Community
Meeting Abstract 25.2 Wednesday, Jan. 5 Evolution as an Ecological Force: Evolution of Inflorescence Size Causes a Shift in the Plant-associated Insect Community SMITH, D.S.*; SHUSTER, S.M.; TURK, P.; WHITHAM, T.G.; Northern Arizona University; Northern Arizona University; West Virginia University; Northern Arizona University dss44@nau.edu We show that natural selection and subsequent evolution of plant traits results in […]
Elevated sea water temperatures could result in rapid local adaptation of an intertidal predator
Meeting Abstract 25.5 Wednesday, Jan. 5 Elevated sea water temperatures could result in rapid local adaptation of an intertidal predator PRICE, R. M.; University of Washington, Bothell becca.price@uwb.edu One approach toward elucidating the effects of global climate change is to grow species at elevated temperatures under controlled laboratory conditions. The intertidal, predatory snail Nucella provides an ideal […]
Biogeographic comparisons of prey responses to the invasive marine crab Carcinus maenas
Meeting Abstract 25.4 Wednesday, Jan. 5 Biogeographic comparisons of prey responses to the invasive marine crab Carcinus maenas? FREEMAN, Aaren*; WRIGHT, Jeffrey; SZETO, Kaylene; KOOB, Elise; HEWITT, Chad; CAMPBELL, Marne; Adelphi University; Australian Maritime College; University of New Hampshire; University of New Hampshire; Australian Maritime College; Australian Maritime College afreeman@adelphi.edu Global redistribution of invasive species by human […]
Speciation, in the sea
Meeting Abstract 24.1 Wednesday, Jan. 5 Speciation, in the sea? DAWSON, MN; University of California, Merced mdawson@ucmerced.edu The fluid mechanics of marine and terrestrial systems are surprisingly similar at many spatial and temporal scales. Not surprisingly, the dispersal of organisms that float, swim, or fly is influenced by the fluid environments of air and seawater. Nonetheless, it […]
Patterns of speciation in sea cucumbers
Meeting Abstract 24.3 Wednesday, Jan. 5 Patterns of speciation in sea cucumbers MICHONNEAU, Francois; University of Florida francois.michonneau@gmail.com Despite their striking presence on coral reefs and the multi-millon dollar industry targeting them, aspidochirotid holothurians have received relatively little taxonomic attention. Heavy reliance on ossicles has lead to a confused taxonomy and masks substantial cryptic diversity. As part […]
Molgula pugetiensis is a Pacific tailless ascidian within the Roscovita clade of molgulids
Meeting Abstract 24.4 Wednesday, Jan. 5 Molgula pugetiensis is a Pacific tailless ascidian within the Roscovita clade of molgulids MALISKA, ME*; SWALLA, BJ; University of Washington, Department of Biology and Friday Harbor Laboratories; University of Washington, Department of Biology and Friday Harbor Laboratories mem24@uw.edu The molgulid ascidians are a monophyletic group of tunicates that share specific morphological […]
