Abstract:
:The concept of personality implies individual differences in behavior and physiology that show some degree of repeatability/consistency over time and across contexts. Most studies of animal personality, particularly studies of individuals' variation in physiological mechanisms, have been conducted on selected individuals in controlled conditions. We attempted to detect consistent behaviors as well as physiological patterns in greylag ganders (Anser anser) from a free-roaming flock living in semi-natural conditions. We tested 10 individuals repeatedly, in a handling trial, resembling tests for characterization of "temperaments" in captive animals. We recorded the behavior of the same 10 individuals during four situations in the socially intact flock: (1) a "low density feeding condition", (2) a "high density feeding condition", (3) a "low density post-feeding situation" and (4) while the geese rested. We collected fecal samples for determination of excreted immuno-reactive corticosterone (BM) and testosterone metabolites (TM) after handling trials, as well as the "low density feeding" and the "high density feeding" conditions. BM levels were very highly consistent over the repeats of handling trials, and the "low density feeding condition" and tended to be consistent over the first two repeats of the "high density feeding condition". Also, BM responses tended to be consistent across contexts. Despite seasonal variation, there tended to be inter-test consistency of TM, which pointed to some individual differences in TM as well. Aggressiveness turned out to be a highly repeatable trait, which was consistent across social situations, and tended to correlate with an individual's resistance during handling trials. Also, "proximity to the female partner" and "sociability" - the average number of neighboring geese in a close distance while resting - were consistent. We conclude that aggressiveness, "affiliative tendencies" and levels of excreted corticosterone and testosterone metabolites may be crucial factors of personality in geese.
journal_name
Horm Behavjournal_title
Hormones and behaviorauthors
Kralj-Fiser S,Scheiber IB,Blejec A,Moestl E,Kotrschal Kdoi
10.1016/j.yhbeh.2006.10.006subject
Has Abstractpub_date
2007-02-01 00:00:00pages
239-48issue
2eissn
0018-506Xissn
1095-6867pii
S0018-506X(06)00277-7journal_volume
51pub_type
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journal_title:Hormones and behavior
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abstract::In this study we tested the hypothesis that in a passerine bird (great tit, Parus major) individuals differing for coping strategies differ in the magnitude of the adrenocortical response to social stress as well. Furthermore, we aimed at characterizing daily rhythms in corticosteroid release before and after social s...
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abstract::Extended biparental care is rare in insects but provides an excellent opportunity to investigate the interaction between the endocrine system and the physical and social environment in the regulation of this behavior. Burying beetles (Nicrophorus spp.) have facultative biparental care and depend on locating a small ve...
journal_title:Hormones and behavior
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abstract::Bacteria have had a fundamental impact on vertebrate evolution not only by affecting the evolution of the immune system, but also generating complex interactions with behavior and physiology. Advances in molecular techniques have started to reveal the intricate ways in which bacteria and vertebrates have coevolved. He...
journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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abstract::Variation in natural behavior is tightly linked to the ecological resources with which they co-evolved. This review discusses poison frog behavior and neuroendocrinology to illustrate how ecological factors drive diversification of behavior and its underlying neural mechanisms. Poison frogs show tremendous diversity i...
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abstract::The present study investigated whether the circadian oscillators controlling rhythms in activity behavior and melatonin secretion shared similar functional relationship with the external environment. We simultaneously measured the effects of varying illuminations on rhythms of movement and melatonin levels in Indian w...
journal_title:Hormones and behavior
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abstract::Oxytocin is important for postnatal developmental experiences for mothers, infants, and transactions between them. Oxytocin is also implicated in adult affiliative behaviors, including social buffering of stress. There is evidence for connections between early life experience and adult oxytocin system functioning, but...
journal_title:Hormones and behavior
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2018.06.006
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abstract::Hormone replacement therapy (HRT) may be prescribed to prevent the symptoms of menopause. This therapy may include estrogenic and/or progestin components and may increase the incidence of endometrial and breast cancers. Tibolone (TIB), which is also made up of estrogen and progestin components, is often used to reduce...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2011.10.005
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abstract::Corticotropin-releasing factor (CRF) plays a critical role in the mediation of physiological and behavioral responses to stressors. In the present study, we investigated the role played by the CRF system within the medial amygdala (MeA) in the modulation of anxiety and fear-related responses. Male Wistar rats were bil...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2014.01.004
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abstract::Previous studies have provided evidence that humans demonstrate subtle, but measurable, turning biases when tested in the absence of environmental constraints. Preferences for leftward or rightward rotation have been repeatedly demonstrated in rodents and appear to be modulated to a significant degree by ovarian hormo...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1006/hbeh.1997.1363
更新日期:1997-02-01 00:00:00
abstract::Biparental male hamsters, Phodopus campbelli, act as midwives during the birth of their litter and are highly responsive to an experimentally displaced pup. They also have high peripheral concentrations of estradiol, a hormone with known roles in maternal behavior. Surgical castration during the gestation of their fir...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2005.04.001
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abstract::The present study was carried out in order to assess the time course of action of progesterone (P) in the facilitation of complete feminine sexual behavior. Female rats (estrogen primed via 5% E2 Silastic capsules) were given 200 micrograms of P either intravenously (iv) or subcutaneously (sc), and tested for estrous ...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/0018-506x(83)90012-0
更新日期:1983-03-01 00:00:00
abstract::The present study investigates the effects of the antiestrogen ICI 182,780 (ICI) on the display of sexual behaviors in female rats. ICI 182,780 is a pure anti-estrogen and when given systemically, ICI is thought to act only in the periphery, and is not believed to cross the blood brain barrier. The present study exami...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1006/hbeh.2000.1638
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abstract::We tested whether subordinate helper males of the Lake Tanganyika cooperatively breeding cichlid Neolamprologus pulcher show elevated excretion levels of the stress hormone cortisol and reduced levels of 11-ketotestosterone and testosterone when living in groups with a small breeder male, compared to similar helper ma...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2006.02.009
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abstract::This article is part of a Special Issue "Energy Balance". Ingestive behavior in free-ranging populations of nonhuman primates is influenced by resource availability and social group organization and provides valuable insight on the evolution of ecologically adaptive behaviors and physiological systems. As captive popu...
journal_title:Hormones and behavior
pub_type: 杂志文章,评审
doi:10.1016/j.yhbeh.2014.04.005
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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
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doi:10.1016/j.yhbeh.2011.11.001
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abstract::Female rats located near a male during uterine development showed increased frequencies of male-like behavior as adults and virilization of genital morphology. These changes in behavior and morphology were blocked by prenatal treatment with the anti-androgen, Flutamide. ...
journal_title:Hormones and behavior
pub_type: 杂志文章
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abstract::Individually housed male mice were exposed to either an intact male or an ovariectomized female mouse for 1 min and decapitated at 5, 15, or 60 min to examine the hypothesis whether discrete changes in olfactory bulb neuropeptide (LHRH and TRH) and neurotransmitter (NE and DA) concentrations would occur following onse...
journal_title:Hormones and behavior
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abstract::Fecal testosterone and cortisol levels were analyzed from six wild male muriquis (Brachyteles arachnoides) over a 19-month period at the Estação Biológica de Caratinga in Minas Gerais, Brazil, to investigate the hormonal correlates of seasonal sexual behavior and environmental conditions. Group mean testosterone level...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1006/hbeh.1998.1505
更新日期:1999-04-01 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::In the field as well as in the laboratory, human-generated stress responses are reduced in adult animals previously habituated to humans in comparison to non-habituated individuals. In birds, yolk steroid levels vary with maternal environment and condition. We tested the hypothesis that the experience of female birds ...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2008.04.012
更新日期:2008-08-01 00:00:00
abstract::Nitric oxide (NO) has been suggested to play a crucial role in the regulation of lordosis behavior via stimulation of guanylyl cyclase to synthesize cyclic GMP. Whalen and Lauber (1986, Neurosci. Biobehav. Rev. 10, 47-53) hypothesized that hormones and pharmacological agents known to facilitate lordosis in estrogen-pr...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1006/hbeh.1997.1413
更新日期:1997-10-01 00:00:00
abstract::The white-throated sparrow (Zonotrichia albicollis) represents a powerful model in behavioral neuroendocrinology because it occurs in two plumage morphs that differ with respect to steroid-dependent social behaviors. Birds of the white-striped (WS) morph engage in more territorial aggression than do birds of the tan-s...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2017.11.014
更新日期:2018-02-01 00:00:00
abstract::The ratio of length between the second and fourth fingers (2D:4D) is commonly used as an indicator of prenatal sex hormone exposure. Several approaches have been used to try to validate the measure, including examining 2D:4D in people with congenital adrenal hyperplasia (CAH), a suite of conditions characterised by el...
journal_title:Hormones and behavior
pub_type: 杂志文章,评审
doi:10.1016/j.yhbeh.2020.104867
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abstract::MSP is a male-specific protein initially identified in the serum of sexually active Sarotherodon galilaeus males, and is shown herein to be present in the serum of sexually mature males, but not females, of three other tilapia species. Cloning of the MSP cDNA and analysis of its predicted amino-acid sequence revealed ...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2008.03.014
更新日期:2008-08-01 00:00:00
abstract::Ovarian steroid hormones, estradiol and progesterone, regulate cellular functions in the central nervous system, resulting in the alterations in physiology and reproductive behavior. One means by which steroid hormones exert their neural effects on reproductive behavior is via their intracellular receptors functioning...
journal_title:Hormones and behavior
pub_type: 杂志文章,评审
doi:10.1006/hbeh.2001.1687
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