�VERLI, �*; POTTINGER, TG; WINBERG, S: Effects of Selection for Stress Responsiveness on Behaviour and Brain Monoamines in Rainbow Trout Recent studies in mammals suggest that differences in behavioural stress responses are associated with consistent neuroendocrine and physiological traits, which result in individual stress coping strategies, or coping styles. We present evidence suggesting that differential […]

BURMEISTER, S.: Social Context Influences Androgenic Effects on Calling in the Green Treefrog Courtship behavior in frogs is an ideal model for investigating the relationships among social experience, gonadal steroids and behavior. Communication is mediated primarily by acoustic signals, and the auditory system projects to the hypothalamus. Listening to mating calls causes an increase in […]

HOLLIS, D.M.; BOYD, S.K.: Neurosteroid Modulation and Subunit Isolation of a GABA-A-like Receptor in the Amphibian Brain. The inhibitory neurotransmitter gamma-aminobutyric acid (GABA) has multiple receptor subtypes. The GABAA receptor is widespread in the mammalian brain, but little is known about GABA receptors in the amphibian brain. Binding of the GABAA receptor agonist, [3H]muscimol, to […]

SOCKMAN, K.W.*; GENTNER, T.Q.; BALL, G.F.: Experience modulates forebrain response to mate choice cues Within minutes of a behaviorally relevant stimulus, the brain responds with a pulse of immediate-early-gene (IEG) transcription that alters processes in long-term memory formation. This genomic response can vary with stimulus type, but its sensitivity to nuances in social experience is […]

BRADLEY, TJ; HETZ, S: Specific Dynamic Action in the Insect Rhodnius prolixus Larval instars of the Reduviid bug Rhodnius prolixus take blood meals that are up to ten times their previous body volume. Digestion and absorption of the meal is necessary for growth of the insect prior to the subsequent molt. We measured carbon dioxide […]

BISHOP, Renee E.; GEIGER, Stephen P.; MC CULLON, Joseph Jr.: Phronima Energetics: Life of a planktonic stowaway The hyperiid amphipods of the genus Phronima have adapted to the pelagia by hollowing transparent barrels from salps. The amphipods reside in the salp barrels and pilot them through the water. This unique behavioral adaptation may provide advantages […]

HUNT VON HERBING, I: Growth in the fast lane: metabolic scaling and activity in developing fishes. Embryonic and larval growth rates are high(50% d,-1)in some species,while juveniles have growth rates of 1-6%d-1.Given finite energy supplies,how can embryos and larvae simultaneously maintain high growth rates,swim and perform other metabolic processes? High growth rates are costly as […]

MORAN, A.L.*; MANAHAN, D.T.: Energy metabolism during larval development of two abalone species, Haliotis fulgens and H. sorenseni Lecithotrophic larvae of marine organisms develop to metamorphosis without feeding on plankton. An understanding of the biochemical and physiological energetics of lecithotrophic development is useful for interpreting patterns of larval development and dispersal. This study investigates the […]

GINSBURG, D.W.; MANAHAN, D.T.: Biochemical bases of metabolic intensity during sea urchin development Early stages of development require increased oxygen consumption to support energetically demanding processes, such as rates of protein synthesis and maintenance of ion gradients in the increasing number of cells. Little is known about the relationship among these physiological processes and their […]

MCKECHNIE, A.E.; LOVEGROVE, B.G.: Thermoregulation in mousebirds (Coliiformes): the role of clustering behavior. The mousebirds (Coliiformes) are a phylogenetically ancient order endemic to the Afrotropics. From an energetic perspective, the mousebirds are of interest in that they exhibit well-developed communal roosting (clustering) as well as a pronounced capacity for torpor. We investigated thermoregulation in two […]