BERGMAN, Daniel A; MOORE, Paul A: The olfactory role in the fight dynamics of the crayfish, Orconectes rusticus Dyadic agonistic interactions produce stable dominance relationships among individual crayfish. A variety of factors influence the formation of hierarchical structures, including a crayfish’s intrinsic aggressive state, an ability to physically dominate, and previous agonistic experience. Crayfish, which […]

KOZLOWSKI, C.P.; MOORE, P. A.: The effect of odor pulse frequency on the orientation behavior of the crayfish, Orconectes rusticus. Crustaceans use chemical signals for many purposes, including communication, and locating food, mates, and shelter. Several theories attempt to explain how organisms locate an odor source, including odor-gated rheotaxis and eddy chemotaxis, but the mechanisms […]

ADAMS, J.A.*; MOORE, P.A.: The effect of molt status on fight dynamics in the crayfish, Orconectes rusticus Many animals participate in agonistic interactions to acquire shelter or gain access to food or mates. Success in these interactions is highly dependent upon physical features such as body and weapon size. For crustaceans, individuals must undergo molting […]

WILBORN, S.E.; MOORE, P.A.: The effect of boundary layers on chemical signals perception in blue crabs When looking at sensory signals, specifically olfactory signals, we must realize that a signal is sent through an environment and then received by a receptor organ. The signal passes through a boundary layer, which surrounds the receptor organ. So […]

BECK, K.B.; YAHR, P.I.: The Role of Androgren Aromatization in Mediating Male Rat Sex Behavior This experiment served to further define the role of androgen aromatization in male rat reproductive behavior. The hormones tested are analogs of testosterone (T), an aromatizable compound, and 6α-fluoroT, a non-aromatizable compound, but both stimulate reproductive behavior. These two hormones […]

VUTURO, STEVEN A.; RATCLIFF, LANCE; VERDUGO, SHERRI A.; STURTEVANT, MARK A.*: The Distribution of the Gastropod, Theodoxus luteofasciatus, on a Mudflat in the Northern Gulf of California The marine snail Theodoxus luteofasciatus (Neritidae) is a small but common intertidal gastropod that is striking due to its highly polymorphic and colorful shell pattern. In Cholla Bay […]

O’REILLY, K.M.*; IMHOLT, S.M.; COVERDILL, A.J.; WHEELWRIGHT, N.T.: Testosterone and Parental Care in Savannah Sparrows The influence of testosterone on parental care was studied in Savannah Sparrows (Passerculus sandwichensis). Nests were videotaped when the chicks were five days old. Over 214 hours of videotape taken during three field seasons were analyzed to determine duration and […]

MCCALL, S.*; LOWDER, A.; QUACKENBUSH, L.S.: Temperature effects molting of juvenile blue crabs, Callinectes sapidus. Blue crab megalopa invade estauries and molt to the first crab stage in spring and summer in North Carolina. Growth rates in warm shallow waters will dictate when these crabs can move out of the juvenile habitats. We investigated the […]

LEE,R.F., R.F.*; ANDO, S.; WALKER, A.: Synthesis of a High Density Lipoprotein (LpI) by Blue Crab Embryos Lipids in hemolymph of blue crabs(Callinectes sapidus), and other crustaceans, are associated with a high density lipoprotein (LpI: density: 1.12-1.21 g/ml). LpI is composed of phospholipid (45%), cholesterol (2%), triacylglycerol (3%0 and one peptide (49%; 112,000 daltons). LpI […]

RICHARDSON, Matthew; MOORE, Ignacio; SOMA, Kiran; FU-MIN, Lei; WINGFIELD, John: Stress in an unpredictable environment: Snow finches on the Tibetan Plateau Studies of adaptations of hormone-behavior relationships to unpredictable environments have concentrated on the arctic. The arctic environment is characterized by an extremely rapid breeding season with limited chances to resume reproduction should a first […]