Abstract：
:Interactions between the bluestreak cleaner wrasse Labroides dimidiatus and its client reef fish are a textbook example of interspecific mutualism. The fact that clients actively visit cleaners and invite inspection, together with evidence that cleaners eat many client ectoparasites per day, indeed strongly suggests a mutualistic relationship. What remains unknown is how parasite removal affects the physiology of clients and thereby their body condition, health, and immune function. Here we addressed these issues in a field study in Ras Mohammed National Park, Egypt. In our study area, small reef patches are inter-spaced with areas of sandy substrate, thereby preventing many species (i.e., residents, including cleaner wrasses) from travelling between the reef patches. This habitat structure leads to a mosaic of resident clients with and without access to bluestreak cleaner wrasses, further referred to as "cleaner access", on which we focused our study. We found that residents with cleaner access had higher body condition than residents without cleaner access. However, indicators of stress like variation in cortisol levels corrected for handling time and various immune parameters were apparently unaffected by cleaner access. In fact antibody responses were significantly higher in fishes without cleaner access. This suggests that cleaner access decreases the need for active immunity and that this releases resources that might be allocated to other functions such as somatic growth and reproduction.
journal_name
Horm Behavjournal_title
Hormones and behaviorauthors
Ros AF,Lusa J,Meyer M,Soares M,Oliveira RF,Brossard M,Bshary Rdoi
10.1016/j.yhbeh.2010.11.006subject
Has Abstractpub_date
2011-01-01 00:00:00pages
151-8issue
1eissn
0018-506Xissn
1095-6867pii
S0018-506X(10)00287-4journal_volume
59pub_type
杂志文章abstract：:Previous experiments have shown that expression of mounting behavior in sexually inexperienced, adult male white-crowned sparrows does not require elevated plasma levels of androgen; adult males maintained on nonstimulatory short days mount sexually receptive females. The experiments reported here demonstrate that (1)...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(83)90050-8
更新日期：1983-12-01 00:00:00
abstract：:As research neurobiologists, we pursue specific questions, and the answers rendered are also correspondingly specific. Our goal, however, is to understand an entire system or the whole organism. To that end, it is not only useful, but sometimes also necessary, that we periodically reappraise a body of specific data in...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2007.08.007
更新日期：2008-01-01 00:00:00
abstract：:In New World monkeys of the family Callitrichidae (marmosets and tamarins), females frequently give birth to dizygotic twins. Twins share a placental circulation throughout fetal development and are hemopoietic chimeras. Despite this, there is no masculinization (freemartinism) in females which develop next to a male ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1993.1016
更新日期：1993-06-01 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：: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：:Interspecific differences in the neuropeptide systems of the lateral septum (LS) often parallel differences in social behavior. In rodents, some closely related species that differ in aggressive behavior also differ according to the level of vasopressin (VP) innervation of the LS. In songbirds, the neuropeptides vasot...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2005.03.004
更新日期：2005-08-01 00:00:00
abstract：:Male sexual behavior depends on gonadal androgens in species of all major vertebrate lineages, including reptiles. However, male sexual behavior includes distinct appetitive and consummatory phases, typically denoted as courtship and mounting, with potentially different hormonal control. Different proximate controls o...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2010.11.007
更新日期：2011-01-01 00:00:00
abstract：:It has been hypothesized that in avian social groups subordinate individuals should maintain more energy reserves than dominants, as an insurance against increased perceived risk of starvation. Subordinates might also have elevated baseline corticosterone levels because corticosterone is known to facilitate fattening ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/s0018-506x(03)00119-3
更新日期：2003-08-01 00:00:00
abstract：:On any given day, about 35% of 80- to 85-day-old socially naïve male (SNM) lobster cockroaches (Nauphoeta cinerea) spontaneously adopted an aggressive posture (AP) without encountering another male [spontaneous AP (SAP)]. Although SAP SNMs showed significantly higher release of the pheromone 3-hydroxy-2-butanone (3H-2...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2007.04.013
更新日期：2007-08-01 00:00:00
abstract：:Male Syrian hamsters (Mesocricetus auratus) administered anabolic/androgenic steroids during adolescent development display increased aggression and decreased anxious behavior during the adolescent exposure period. Upon withdrawal from anabolic/androgenic steroids, this neurobehavioral relationship shifts and hamsters...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2019.104650
更新日期：2020-03-01 00:00:00
abstract：:Systemic administration of ovine prolactin (PRL) has been previously reported to stimulate parental feeding behavior toward 7-day-old foster squabs by nonbreeding ring doves with previous breeding experience. The first of the present experiments reexamined this claim in experienced, nonbreeding birds given test squabs...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(91)90012-7
更新日期：1991-09-01 00:00:00
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
更新日期：2012-01-01 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：:In many bird species, males exhibit territorial aggression outside the breeding season, when testosterone concentrations are low and may not regulate territorial behaviors. The hormonal regulation of aggression at this time of year has only been studied in passerine birds. Here, we investigated the role of testosteron...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2004.11.021
更新日期：2005-05-01 00:00:00
abstract：:The mechanistic bases of natural and sexual selection on physiological and behavioral traits were examined in male morphs of three colors of the side-blotched lizard, Uta stansburiana. Orange-throated males are aggressive and defend large territories with many females. Blue-throated males defend smaller territories wi...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.2000.1622
更新日期：2000-12-01 00:00:00
abstract：:The transition to parenthood has been associated with declines in testosterone among partnered fathers, which may reflect males' motivation to invest in the family. Moreover, preliminary evidence has found that couples show correlations in hormone levels across pregnancy that may also be linked to fathers' preparation...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2016.07.005
更新日期：2017-04-01 00:00:00
abstract：:Environmental stress conditions are important factors in human health and should be considered in the development of appropriate health policies, since they have been associated with psychological disorders and even with death. A link between stress and changes in 3alpha,5alpha-reduced neurosteroids has been reported....
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2009.07.001
更新日期：2009-09-01 00:00:00
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
pub_type： 杂志文章
doi：10.1016/0018-506x(83)90001-6
更新日期：1983-06-01 00:00:00
abstract：:Rodent alarm chemosignals elicit various behavioral and physiological responses in conspecifics. This study employed a bioassay method, using a modification of the forced swim test, to demonstrate that the pituitary mediates production and/or secretion of an alarm chemosignal in rats subjected to stress. This was show...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1994.1011
更新日期：1994-06-01 00:00:00
abstract：:Estradiol replacement to ovariectomized female rats causes dramatic changes in hippocampal structure and function as well as in performance on hippocampally dependent tasks. Using a delayed matching-to-place version of the water maze, the present study examines the time course of estradiol-induced enhancements in memo...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2003.09.010
更新日期：2004-02-01 00:00:00
abstract：:In vertebrates, the well established increase in plasma corticosterone in response to food shortage is thought to mediate adjustments of foraging behavior and energy allocation to environmental conditions. However, investigating the functional role of corticosterone is often constrained by the difficulty to track time...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2007.07.003
更新日期：2007-11-01 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
更新日期：2005-09-01 00:00:00
abstract：:Groups of juvenile and 1-year-old male canaries were treated briefly with the vasotocin (VT) analog desGly(NH2)9d(CH2)5-[Tyr(Me)2,Thr4, Orn8]VT (dGVTA) during four time intervals between September and February. The canaries received subcutaneously testosterone-containing silastic implants at the start of the VT analog...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(91)90020-i
更新日期：1991-12-01 00:00:00
abstract：:Testosterone is thought to be positively associated with "mating effort", or the initiation and establishment of sexual relationships (Wingfield et al., 1990). Yet, because testosterone is negatively associated with nurturance (van Anders et al., 2011), high levels of testosterone may be incompatible with relationship...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2014.03.003
更新日期：2014-04-01 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
更新日期：2020-11-01 00:00:00
abstract：:Avian eggs contain substantial amounts of maternal yolk androgens, which have been shown to modulate offspring phenotype. The first studies on the functional consequences of maternal yolk androgens have focused on early life stages and their role in sibling competition. However, recent longitudinal studies reported lo...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2008.02.005
更新日期：2008-06-01 00:00:00
abstract：:There is broad acceptance for the idea that during development estradiol 'organizes' many aspects of reproductive behavior including partner preferences in the laboratory rat. With respect to partner preference, this idea is drawn from studies where estrogen action was in someway blocked, either through aromatase or e...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2008.08.009
更新日期：2009-01-01 00:00:00
abstract：:Social competence - the ability of animals to dynamically adjust their social behavior dependent on the current social context - is fundamental to the successful establishment and maintenance of social relationships in group-living species. The social opportunity paradigm, where animals rapidly ascend a social hierarc...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2016.11.001
更新日期：2017-01-01 00:00:00
abstract：:Hormones play a central role in integrating internal and external cues to help mediate life-history decisions as well as changes in behavior and physiology of individuals. Describing the consistency of endocrine traits within and among individuals is an important step for understanding whether hormonal traits are depe...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2011.08.004
更新日期：2011-11-01 00:00:00
abstract：:Fathering behavior is critical for offspring survival in many species across diverse taxa, but our understanding of the neuroendocrine mechanisms regulating paternal care is limited in part because of the few primarily paternal species among the common animal models. However, many teleosts display primarily paternal c...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2018.06.006
更新日期：2018-07-01 00:00:00
