REITZEL, A.M.; MINER, B.G.: Spawning Times and the Importance of Development Time in Life History Models of Marine Invertebrates Trade-offs between fecundity and development time have been used in life history models to predict the optimal amount of maternal energy to supply eggs. However, there is very little evidence to support that selection favors shorter […]

HOOD, C.S.*; ASKAR, M.: Sexual dimorphism in cranial size and shape: Miopithecus talapoin (Primates, Cercopithecidae) Sexual dimorphism in cranial and canine size and shape was investigated in the Old World cercopithecine, Miopithecus talapoin. A sample of 31 museum specimens (23 females, 8 males) originally collected from the field in nearby locations in Rio Muni, West […]

SIMON WESTENDORF, S.*; PALMER, B.D.: Seasonal pattern of plasma steroid levels and ovarian growth in the adult female slider turtle, Trachemys scripta scripta. The female seasonal reproductive cycle was studied in a captive South Carolina population of slider turtles (Trachemys scripta scripta) over a period of one year. Plasma concentrations of estradiol-17BETA, progesterone and testosterone […]

Perfito, N*; Meddle, S.L.; Sharp, P.J.; Wingfield, J.C.: Seasonal gonadal recrudescence in song sparrows (Melospiza Melodia): response to temperature cues Reproduction is timed so the likelihood of offspring survival is optimal, and for seasonal breeders often coincides with peaks in food abundance. Changing of the seasons is predictable at mid-latitudes, and spring is forecasted by […]

DRUZINSKY,R.E.: Sciuromorphy and Protrogomorphy in extant and fossil Rodentia. It has long been recognized that sciuromorphy, in which the anterior lateral masseter muscle originates from an expanded bony plane on the rostral surface of the anterior root of the zygomatic arch, evolved more than one time during the evolutionary diversification of rodents. Arguments for multiple […]

TOSTE, A.M.*; BAUER, D.K.; TSUKIMURA, B.: Reproductive properties of the Chinese mitten crab Eriocheir sinensis The Chinese mitten crab, Eriocheir sinensis , invaded Central California’s waterways and expanded into the San Joaquin water system. Our focus is to study their reproductive capacity. We first investigated a portion of their reproductive cycle and found ovarian weights […]

GALIMA, M.*; KELLEY, K.M.: Relationship Between the Physiological Stress Response, Serum IGFBPs, and Growth in the Jack Mackerel, Metabolic and somatic growth parameters were assessed in Trachurus symmetricus subjected to confinement and handling stressors. Mackerel were caught offshore near Catalina Island and placed into 50-L circular aquaria for 5 d without further disturbance (“confinement” group) […]

LANDYS, M.M.; RAMENOFSKY, M.; PIERSMA, T.; WINGFIELD, J.C.: Regulation of Potentially Conflicting Behavior and Physiology during Migration The avian stage of migration is comprised of distinct sub-stages within which potentially conflicting issues are at work: energy mobilization during flight, versus energy storage during fueling. Therefore, precise control of behavior and physiology during different sub-stages is […]

LEE, K.J.*; WATSON, R.D.: Production of Antipeptide Antibodies for Detection of Crustacean Molt-Inhibiting Hormone In crustaceans, the synthesis of steroid molting hormones, ecdysteroids, is negatively regulated by a neuropeptide molt-inhibiting hormone (MIH). Amino acid sequence data place MIH in the crustacean hyperglycemic hormone (CHH) family. As part of our studies of the control of growth […]

Han, D.W.*; Watson, R.D.: Presence and potential roles of G-proteins in Y-organs of the blue crab. The synthesis of ecdysteroid hormones by crustacean Y-organs is negatively regulated by molt-inhibiting hormone (MIH); a neuropeptide synthesized and released from eyestalk neurosecretory cells. Several lines of evidence suggest that the suppressive effect of MIH on Y-organ ecdysteroid synthesis […]