Abstract：
:Fighting behavior between male copperheads (Agkistrodon contortrix) occurs during the two mating periods (late summer/fall and spring) to gain priority of access to females. Fights are characterized by prominent vertical challenge displays, swaying, and a high degree of physical contact that does not involve biting. At the moment of subordination, losers retreat quickly from fights and winners respond by chasing. Subsequently, losers do not participate in further challenge displays or fighting for at least 7 days, and also they show behavioral signs of stress, which includes submissive acts and suppression of sexual behavior. The goal of this study was to determine whether or not losers show elevated levels of plasma corticosterone (B) and depressed levels of plasma testosterone (T) relative to winners and controls. Winners and losers were produced in 13 staged trials. Two different controls (N = 26) were run. Males with no recent agonistic experience were (1) tested in the fighting arena in the absence of a competitive male but paired with a single female (N = 13), and (2) tested alone in their cages (N = 13). All trials, including controls, were conducted in spring and late summer. Mean B in losers at 1-hr postfight was significantly greater than in winners and both control groups in both seasons. Mean T was significantly greater in late summer in all groups, as expected, but in each season was not significantly different between the groups. Levels of B and T were not correlated with SVL, mass, or duration of fighting. This study provides further support for the social insensitivity/challenge hypotheses and is the first to document postfight B and T levels in snakes.
journal_name
Horm Behavjournal_title
Hormones and behaviorauthors
Schuett GW,Harlow HJ,Rose JD,Van Kirk EA,Murdoch WJdoi
10.1006/hbeh.1996.0009subject
Has Abstractpub_date
1996-03-01 00:00:00pages
60-8issue
1eissn
0018-506Xissn
1095-6867pii
S0018-506X(96)90009-4journal_volume
30pub_type
杂志文章abstract：:This article is part of a Special Issue "Chemosignals and Reproduction". Chemical cues were probably the first cues ever used to communicate and are still ubiquitous among living organisms. Birds have long been considered an exception: it was believed that birds were anosmic and relied on their acute visual and acoust...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2014.06.001
更新日期：2015-02-01 00:00:00
abstract：:This article is part of a Special Issue "Estradiol and cognition". Subjective changes in concentration and memory are commonly reported by women during the second or third trimesters of pregnancy, but the nature of the problem is poorly understood. We hypothesized that these self-reports might reflect difficulties in ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2015.07.006
更新日期：2015-08-01 00:00:00
abstract：:Relationships between testosterone plasma levels and evoked vocal responses of males of the leptodactylid frog Batrachyla taeniata from southern Chile were studied. Evoked vocal responses were elicited in the field with playbacks of a synthetic imitation of the conspecific advertisement call and variants of this signa...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1997.1366
更新日期：1997-04-01 00:00:00
abstract：:In rats, progesterone (P) facilitates sexual receptivity by interacting with intracellular progestin receptors in the ventromedial hypothalamus (VMH). This experiment concerns whether P can also facilitate receptivity in rats by acting extragenomically within the ventral tegmental area (VTA). Ovariectomized rats (n = ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1996.0069
更新日期：1996-12-01 00:00:00
abstract：:Though there are multiple routes through which parents can influence their offspring, recent studies of environmentally induced epigenetic variation have highlighted the role of non-genomic pathways. In addition to the experience-dependent modification of DNA methylation that can be achieved via mother-infant interact...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2010.06.018
更新日期：2011-03-01 00:00:00
abstract：:Species with alternative reproductive tacts are good models to investigate the poorly understood question of whether individual variation within sexes results from the same physiological mechanisms that control variation between sexes. We have shown previously that adult male tree lizards, Urosaurus ornatus, of differ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(92)90023-o
更新日期：1992-12-01 00:00:00
abstract：:The behavioral and endocrine activation of sexual behaviors exhibited by male goats, especially self-enurination (SE), is poorly understood. In the first experiment, to assess the influence of socio-sexual context on SE in bucks, the effects of distance from does, the presence of estrous versus non-estrous does and th...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2019.01.008
更新日期：2019-03-01 00:00:00
abstract：:Glucocorticoids are thought to mediate the disruption of parental behavior in response to acute and chronic stress. Previous research supports their role in chronic stress; however, no study has experimentally tested the effects of acute glucocorticoid elevation on paternal behavior. We tested the prediction that acut...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2011.09.001
更新日期：2011-11-01 00:00:00
abstract：:Male and female hamsters differ in the stimulus control of the ultrasounds they produce during courtship and mating. In particular, untreated males show greater increases in ultrasound rate after exposure to stimulus females than after contact with other males. Conversely, estrous females are more responsive to stimul...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(87)90027-4
更新日期：1987-03-01 00:00:00
abstract：:Ghrelin, a hormone produced primarily by the stomach, has been associated with motivational processes that include reward-seeking behaviors. In male laboratory mice, elevation of ghrelin levels enhances some aspects of sexual motivation and behavior, whereas in other experiments with male mice, rats, and other species...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2017.10.012
更新日期：2018-01-01 00:00:00
abstract：:Motivated social behaviors such as mating are controlled by a complex network of limbic nuclei. Concepts of network organization derived from computational neuroscience may aid our understanding of the links between the neuroanatomical circuitry and what is represented by the anatomy. Research in my laboratory uses ma...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1006/hbeh.1997.1403
更新日期：1997-08-01 00:00:00
abstract：:In a previous study we found that mother rats show more drinking responses than virgins in the punished drinking paradigm, an animal model for anxiety. The present investigation was carried out to determine the possible mechanisms underlying this naturally occurring anticonflict effect. In Experiment 1, we investigate...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(90)90004-h
更新日期：1990-06-01 00:00:00
abstract：:The hormone oxytocin (OT) is released both centrally and peripherally during and after mating. Although research in humans suggests a central role in sexuality, the most reliable findings to date involve peripheral activation. This review will discuss these results and will particularly focus on understanding the most...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2011.11.001
更新日期：2012-03-01 00:00:00
abstract：:In adult rodents, leptin has been shown to significantly alter the activity of several neuroendocrine functions, including the activity of the hypothalamic-pituitary-adrenal (HPA) axis. Leptin is generally believed to be inhibitory to HPA activity in adults. Developing rat pups have high circulating levels of leptin, ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.2000.1578
更新日期：2000-06-01 00:00:00
abstract：:Androgens are often associated with assertive behavior; under what circumstances is this reflected in higher dominance rank? In this study of coresidential college women, androgens (total testosterone, free testosterone, and androstenedione) and estradiol were positively correlated with high self-regard in women (as m...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1995.1025
更新日期：1995-09-01 00:00:00
abstract：:This article is part of a Special Issue "Chemosignals and Reproduction". In mammalian species, odor cues emitted by the newborn are essential to establish maternal behavior at parturition and coordinate early mother-infant interactions. Offspring odors become potent attractive stimuli at parturition promoting the cont...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2014.06.018
更新日期：2015-02-01 00:00:00
abstract：:Behavioral studies of an XY gonadal dysgenetic chacma baboon under estradiol benzoate treatment were carried out. The dysgenetic individual and two ovariectomized conspecific control females were given a total of three testing series. The dysgenetic individual showed progressive success in her sexual interactions with...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(84)90042-4
更新日期：1984-06-01 00:00:00
abstract：:Contribution to Special Issue on Fast effects of steroids. Although rapid effects of steroid hormones on membrane receptors and intracellular signaling molecules have been extensively studied in neurons, we are only beginning to understand the molecular mechanisms behind these non-classical steroid actions. Single mol...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2018.05.008
更新日期：2018-08-01 00:00:00
abstract：:Social relationships among spouses, family members, and friends are known to affect physical and mental health. In particular, long-lasting bonds between socio-sexual partners have profound effects on cognitive, social, emotional, and physical well-being. We have previously reported that pair bonding in monogamous pra...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2020.104685
更新日期：2020-04-01 00:00:00
abstract：:The intravenous injection of several corticosteroids in the spayed estrogen-primed rat resulted, 5 min later, in a remarkable induction of lordosis response for deoxycorticosterone and 11-deoxycortisol. A lower but important effect was induced with corticosterone and 17 alpha-hydroxyprogesterone. A chemical structure-...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(90)90033-t
更新日期：1990-12-01 00:00:00
abstract：:The sources of cues necessary for elicitation of androgen surges and sexual behavior in male golden hamsters (Mesocricetus auratus) were investigated. Circulating androgen levels were measured in males after interactions with other males or several types of estrous females: intact females, vaginectomized females, or v...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(92)90048-z
更新日期：1992-06-01 00:00:00
abstract：:Based on a wide variety of data, it is now clear that birds and teleost (bony) fish possess a core "social behavior network" within the basal forebrain and midbrain that is homologous to the social behavior network of mammals. The nodes of this network are reciprocally connected, contain receptors for sex steroid horm...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2005.02.003
更新日期：2005-06-01 00:00:00
abstract：:Syrian hamsters are photoperiodic and become sexually quiescent when exposed to short "winter-like" photoperiods. In short photoperiods, male hamsters display significantly higher levels of aggression than males housed in long photoperiods. Arginine-vasopressin (AVP) within the anterior hypothalamus (AH) has been repo...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2004.04.006
更新日期：2004-11-01 00:00:00
abstract：:The neuropeptide arginine vasotocin (AVT) influences vocalizations in some anuran amphibians but it is unknown whether AVT alters all vocal behaviors of a species similarly. We first characterized the vocal repertoire of male gray treefrogs (Hyla versicolor). Three different call types were distinguished by unique set...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1999.1540
更新日期：1999-10-01 00:00:00
abstract：:Humans and wildlife are exposed to numerous anthropogenic drugs and pollutants. Many of these compounds are hormonally active, and recent evidence suggests that the presence of these endocrine disruptors permanently alters normal development and physiology in a variety of vertebrate species. Here, we report on the eff...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2006.01.007
更新日期：2006-06-01 00:00:00
abstract：:When animals are under stress, glucocorticoids commonly inhibit adult neurogenesis by acting through glucocorticoid receptors (GRs). However, in some cases, conditions that elevate glucocorticoids promote adult neurogenesis, and the role of glucocorticoid receptors in these circumstances is not well understood. We exa...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2011.06.001
更新日期：2011-08-01 00:00:00
abstract：:We investigated changes in antiphonal duetting with phases of reproduction and circulating levels of luteinizing hormone, testosterone, and estradiol in slate-colored boubous (Laniarius funebris) breeding in aviaries. Frequency of overall male singing did not vary with reproductive phase while frequencies of female si...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(92)90001-c
更新日期：1992-09-01 00:00:00
abstract：:Among the suite of adaptations displayed by seasonally-breeding rodents, individuals of most species display reproductive regression and concomitant decreases in gonadal steroids during the winter. In addition, some species display increased aggression in short "winter-like" days compared with long "summer-like" day l...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2007.03.029
更新日期：2007-08-01 00:00:00
abstract：:Many seasonally breeding vertebrate species have an associated reproductive pattern: mating behavior, gonadal activity, and peak circulating androgen levels occur simultaneously. In these species, androgens influence the expression of male mating behavior. Other species have a dissociated reproductive pattern: mating ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2007.02.004
更新日期：2007-04-01 00:00:00
abstract：:This article is part of a Special Issue "Energy Balance". Energy homeostasis is achieved through neuroendocrine and metabolic control of energy intake, storage, and expenditure. Traditionally, these controls have been studied in an unrealistic and narrow context. The appetite for food, for example, is most often assum...
journal_title：Hormones and behavior
pub_type： 社论
doi：10.1016/j.yhbeh.2014.05.001
更新日期：2014-06-01 00:00:00
