Meeting Abstract S4-8  Sunday, Jan. 5 11:30 – 12:00  Female Songbirds that Differ in Migratory Strategy Also Differ in Neuroendocrine Measures in Early Spring KIMMITT, AA*; SINKIEWICZ, DM; KETTERSON, ED; Texas A&M University; Indiana University; Indiana University akimmitt@bio.tamu.edu http://www.abbykimmitt.com Most studies of reproductive timing and the underlying mechanisms have used only male subjects, despite the critical role […]

JINKS, R.N.*; MARKLEY, T.L.; PEROVICH, G.M.; EPIFANIO, C.; CRONIN, T.W.: Ontogeny of vision in marine crustaceans. Eyes of most adult crustaceans are specialized for image formation and frequently for color vision or polarization vision as well; but those of larvae probably have more basic functions. In contrast, eyes of adult crustaceans found at hydrothermal vents […]

CHARMANTIER, G.: Ontogeny of osmoregulation in crustaceans : The embryonic phase. Three patterns of ontogeny of postembryonic osmoregulation have been recognized in crustaceans : (1) osmoregulation varies little with development stage and the adults are weak regulators or osmoconformers; (2) the adult type of efficient osmoregulation is established in the first postembryonic stage; (3) metamorphosis […]

Terwilliger, N.B.; Ryan, M.: Ontogeny of crustacean respiratory proteins The respiratory proteins hemocyanin (Hc) and hemoglobin (Hb) share the function of oxygen transport, but the proteins, their active sites and the metal ions that bind the oxygen are totally different. Either Hc or Hb, but not both, is expressed in the hemolymph of many arthropod […]

Forward, R.B.: Ontogentic changes in crustacean larval behavior: contributions to transport and metamorphosis Larval development of many estuarine decapod crustaceans occurs in coastal/oceanic areas. Thus, larvae are transported seaward from estuaries for development and then shoreward and up-estuaries to nursery areas as post-larvae. This paper will focus on selective tidal stream transport (STST) as the […]

CHARMANTIER, G. *; WOLCOTT, D. L.: Ontogenetic strategies of invertebrates in aquatic environments : Introductory note Aquatic organisms are subjected to multiple environmental factors wielding a selection pressure upon them. As natural selection acts on all developmental stages, the successful establishment of a species in a given habitat depends on the ability of each of […]

HADFIELD, M.G.: Metamorphic competence is a major adaptive convergence in marine invertebrate larvae Larvae from diverse and unrelated marine-invertebrate phyla are able to rapidly respond to environmental cues to settlement and to undergo very rapid metamorphogenesis because they share the developmental trait of metamorphic competence. This developmental state, characteristic of larvae as diverse as those […]

Anger, K. Anger: Life-history adaptations of decapod crustaceans to non-marine conditions The evolutionary transition from the sea to freshwater or terrestrial environments requires special life-history adaptations, which are exemplified with grapsid crabs from the island of Jamaica and palaemonid shrimps from the Amazon region. As a phylogenetic convergence, limnic and terrestrial species show a reduced […]

HAND, S.C.: Induction of Quiescence and Diapause During Life Cycles of Aquatic Invertebrates: Mechanisms and Implications. With one exception, all major animal phyla contain species that display dormancy at certain points in their life cycles, a feature that affords tolerance to harsh or ephemeral habitats. Diapause is an obligate, developmentally-programmed form of dormancy that precedes […]

CHANG, E.S.: Hormones in the lives of crustaceans: An overview Decapod crustaceans have been a particularly interesting and rewarding group of animals for the study of comparative endocrinology. Most of the published studies, however, have dealt with the hormones of the adult stage; relatively few studies have addressed the hormones of the embryonic and larval […]