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Activation, modification and suppression of sex pheromone production in garter snakes

Creator:: Parker, M. Rockwell
Abstract:: Vertebrates communicate with one another and coordinate intraspecific reproduction by using a variety of sexually dimorphic signals, such as plumage, ornaments, sounds, and/or scents. These sexual dimorphisms are maintained by physiological factors, typically sex-specific hormones (though see Chapter 3 for an exception). The purpose of the research in this dissertation...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Robert T. Mason Vertebrates communicate with one another and coordinate intraspecific

Phenotypic variation in the sexual attractiveness pheromone of the red-sided garter snake, Thamnophis sirtalis parietalis

Creator:: LeMaster, Michael P.
Abstract:: Pheromones are chemical cues produced by organisms that affect the behavior and/or physiology of conspecifics. The orchestration of reproductive behaviors in many animals depends on the expression of sex pheromones. In insects, intraspecific variation in sex pheromone expression is commonly observed and often influences social interactions between individuals. To what...
Resource Type:: Dissertation
Full Text:: sirtalis parietalis. Abstract approved: Robert T. Mason Pheromones are chemical cues produced by

Behavioral adaptations and the minimization of reproductive costs in the male red-sided garter snake, Thamnophis sirtalis parietalis.

Creator:: O'Donnell, Ryan P.
Abstract:: The benefits of reproduction are clear, but there are also costs. Much is known about the costs of reproduction in females, but only recently have male costs been investigated in any depth. These costs of reproduction may be minimized by appropriately modifying behavior, but there has been little research on...
Resource Type:: Masters Thesis
Full Text:: : ___________________________________________________ Robert T. Mason The benefits of reproduction are clear, but there are also

Pheromonal mediation of reproductive behavior in the brown tree snake

Creator:: Greene, Michael John
Abstract:: In animals, reproductive behaviors serve to attract individuals together during the breeding season and to coordinate the behavioral and physiological states of individuals so that mating can successfully occur. In snakes, the various reproductive behaviors including courtship, mating, courtship inhibition, male combat and trailing are mediated primarily by pheromones. Pheromones...
Resource Type:: Dissertation
Full Text:: Reproductive Behavior in the Brown Tree Snake. Abstract approved: Robert T. Mason In animals, reproductive

Reproductive implications of parasitic infections and immune challenges in garter snakes

Creator:: Uhrig, Emily J.
Abstract:: Parasitic infections and immune challenges can affect host reproductive fitness and, ultimately, the evolution of host populations in a myriad of ways. The fitness implications of parasitic infections range from increased host mortality to subtle changes in reproductive investment. From alterations of behaviors, sexual signaling, and competitive ability to changes...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Robert T. Mason Parasitic infections and immune challenges can affect host reproductive

Patterns and mechanisms : postcopulatory sexual selection and sexual conflict in a novel mating system

Creator:: Friesen, Christopher R.
Abstract:: Postcopulatory sexual selection—sperm competition and cryptic female choice—has become a major area of research over the past 40 years. Within this field there are many outstanding questions at every level of analysis, from proximate to ultimate. The fitness consequences for both sexes in the period after copulation and before fertilization...
Resource Type:: Dissertation
Full Text:: Selection and Sexual Conflict in a Novel Mating System Abstract approved: Robert T. Mason

Chronobiology of garter snakes : environmental and hormonal mechanisms mediating hibernation and reproduction

Creator:: Lutterschmidt, Deborah I.
Abstract:: Most vertebrates exhibit seasonality in many life history traits. Such seasonal rhythms are temporally organized via the transduction of environmental cues (e.g., photoperiod, temperature) into appropriate endocrine signals. However, among ectothermic vertebrates that undergo continuous winter dormancy, temperature is the only environmental cue available for synchronizing seasonal rhythms. Most intriguing...
Resource Type:: Dissertation
Full Text:: Mediating Hibernation and Reproduction. Abstract approved: Robert T. Mason Most vertebrates

Stress and reproduction in male garter snakes

Creator:: Moore, Ignacio T.
Abstract:: Animals respond to stressful situations with increases in plasma levels of glucocorticoid stress hormones. These hormones originate from the adrenal cortex in response to stimulation of the hypothalamic-pituitary-adrenal axis. Glucocorticoids (corticosterone in reptiles) function to mobilize energy and suppress unnecessary functions until the stress passes. Among these immediately unnecessary functions...
Resource Type:: Dissertation
Full Text:: the data collection and interpretation in chapter four. Robert Mason has served as my graduate

The ontogeny and mediation of sexual size dimorphism in the red-spotted garter snake, Thamnophis sirtalis concinnus

Creator:: Lerner, Darren T.
Abstract:: A wide range of environmental and physiological factors influence the type and extent of sexual dimorphism found in animals. Influential factors include variable climate, competition for resources and mates, mate choice, and parental investment. In addition, some investigators attribute differences in body size to physiological factors influenced by genetic and...
Resource Type:: Masters Thesis
Full Text:: concinnus. Abstract approved: Robert T. Mason A wide range of environmental and physiological factors

The role of gonadotropin-releasing hormone in the regulation of courtship behavior in the male red-sided garter snake, Thamnophis sirtalis parietalis

Creator:: Smith, Mitchell Todd
Resource Type:: Masters Thesis
Full Text:: Laboratory Animals. Robert Mason and Frank Moore have contributed to all aspects of this work through

ScholarsArchive@OSU

Activation, modification and suppression of sex pheromone production in garter snakes

Phenotypic variation in the sexual attractiveness pheromone of the red-sided garter snake, Thamnophis sirtalis parietalis

Behavioral adaptations and the minimization of reproductive costs in the male red-sided garter snake, Thamnophis sirtalis parietalis.

Pheromonal mediation of reproductive behavior in the brown tree snake

Reproductive implications of parasitic infections and immune challenges in garter snakes

Patterns and mechanisms : postcopulatory sexual selection and sexual conflict in a novel mating system

Chronobiology of garter snakes : environmental and hormonal mechanisms mediating hibernation and reproduction

Stress and reproduction in male garter snakes

The ontogeny and mediation of sexual size dimorphism in the red-spotted garter snake, Thamnophis sirtalis concinnus

The role of gonadotropin-releasing hormone in the regulation of courtship behavior in the male red-sided garter snake, Thamnophis sirtalis parietalis

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