Swanson, C.A.: Positive effect of increasing egg mass size on juvenile success in the apple murex snail, Phyllonotus pomum Packaging and placement of offspring is an important aspect of life history because it can directly affect fitness in terms of offspring survival. Previous studies addressing the effect of egg mass structure on embryo success suggest […]

Hauswaldt, J.S.*; Glenn, T.C.: Population genetic structure of the Diamondback terrapin, Malaclemys terrapin centrata, using microsatellite DNA markers The Diamondback terrapin is the only species of turtle in North America that exclusively inhabits brackish waters. Seven subspecies occur in separate regions from Cape Cod to western Texas. At the beginning of last century terrapin numbers […]

Tuberty, S.R.*; Nates, S.F.; McKenney Jr., C.L.: Polyclonal antisera against estuarine crustacean vitellins: a molecular approach to reproductive endocrinology and toxicology. In order to fully elucidate the action of crustacean hormones, or their agonists, on reproduction and vitellogenesis it has become increasingly important to develop sensitive assays that indicate a stimulatory or inhibitory effect on […]

LAYNE, J. R. JR.; KUHARSKY, D. K.: Physiological consequences of supercooling and freezing for overwintering insects. Freeze tolerance and enhanced supercooling ability (freeze avoidance) are distinct adaptations in insects facilitating survival of subfreezing temperatures. It has been suggested that freeze tolerance has advantages over freeze avoidance with respect to certain aspects of insect ecophysiology. Third […]

NEPHEW, B.C.*; ROMERO, L.M.: Peripheral arginine vasotocin (AVT) increases corticosterone, but decreases behavior in European Starlings (Sturnus vulgaris) The neurohormone arginine vasotocin (AVT) has been shown to have diverse effects on numerous avian behaviors including vocalization, learning, sexual behavior, aggression, and general activity level. It is unclear whether these effects are modulated by AVT alone, […]

JOHN-ALDER, H.B.*; CARSIA, R.V.: Partial Characterization of Adrenocortical Cells from the Eastern Fence Lizard (Sceloporus undulatus) Season-specific corticosterone responses are apparent in S. undulatus (Horm. Behav. 36:39-52, 1999). These varying responses may be due to season-related adrenal programming. As a beginning point to investigate this hypothesis, we partially characterized the steroidogenic properties of adrenal cells […]

GARB, J.E.*; GILLESPIE, R.G.: Parallel patterns in the Pacific? A comparison of phylogenetic diversification in crab spiders (Araneae: Thomisidae) across three Polynesian archipelagos. Crab spiders of the genus Misumenops(Araneae: Thomisidae) have repeatedly colonized and diversified on a number of Pacific island archipelagos. Depsite the similarity in the geologic formation of the Hawaiian, Society and Marquesan […]

Baker, P.J.: Ontogenetic changes in plastral callosities of the Senegal flapshell turtle, Cyclanorbis senegalensis The number and location of the plastral callosities are reliable characters used to distinguish adults of the Senegal flap-shelled turtle, Cyclanorbis senegalensis, from its congener the Nubian flap-shelled turtle, C. elegans. Adult C. senegalensis have seven to nine callosities present on […]

Van Winkle, D.H.*; Blackstone, N.W.: Ontogenetic changes in competitive behavior & ability in colonial hydroids In controlled laboratory experiments, colonies of Podocoryna carnea (PC) typically overgrow and kill colonies of Hydractinia symbiolongicarpus (HS). Generally, these experiments have used colonies grown from tissue explants surgically removed from mature colonies taken from natural populations. Recent experiments comparing […]

SCAPPATICCI, A.A.*; KASS-SIMON, G.: Nematocyst Discharge: The Response of Prey Capturing Desmonemes to Chemical and Mechanical Stimulation. The effects of chemical and mechanical stimulation on the discharge of desmonemes were quantitatively studied in situ, in ablated tentacles and in hypostome-attached tentacles of Hydra. Feeding and locomotion in hydra depend upon the discharge of nematocysts. Nematocysts […]