Published in Gen Comp Endocrinol on April 01, 1994
Measuring stress in wildlife: techniques for quantifying glucocorticoids. Oecologia (2011) 2.19
Modulation of the hypothalamic-pituitary-adrenal axis of an Arctic-breeding polygynandrous songbird, the Smith's longspur, Calcarius pictus. Proc Biol Sci (2003) 0.90
Effects of dietary PCB exposure on adrenocortical function in captive American kestrels (Falco sparverius). Ecotoxicology (2003) 0.87
Seasonal stress physiology and body condition differ among co-occurring tropical finch species. J Comp Physiol B (2013) 0.86
Comparing plasma and faecal measures of steroid hormones in Adelie penguins Pygoscelis adeliae. J Comp Physiol B (2009) 0.80
Differential migration and an endocrine response to stress in wintering dark-eyed juncos (Junco hyemalis). Proc Biol Sci (2000) 0.80
Links between thermoregulation and aging in endotherms and ectotherms. Temperature (Austin) (2014) 0.79
Fecal steroid monitoring for assessing gonadal and adrenal activity in the golden eagle and peregrine falcon. J Comp Physiol B (2007) 0.78
Non-Invasive Measurement of Adrenocortical Activity in Blue-Fronted Parrots (Amazona aestiva, Linnaeus, 1758). PLoS One (2015) 0.78
Life and death: metabolic rate, membrane composition, and life span of animals. Physiol Rev (2007) 3.05
The determination of five steroids in avian plasma by radioimmunoassay and competitive protein-binding. Steroids (1975) 2.15
Benefits and costs of increased levels of corticosterone in seabird chicks. Horm Behav (2003) 1.71
Dietary restriction causes chronic elevation of corticosterone and enhances stress response in red-legged kittiwake chicks. J Comp Physiol B (2001) 1.52
Effects of weather on corticosterone responses in wild free-living passerine birds. Gen Comp Endocrinol (2000) 1.52
The annual cycle of plasma irLH and steroid hormones in feral populations of the white-crowned sparrow, Zonotrichia leucophrys gambelii. Biol Reprod (1978) 1.44
Noninvasive corticosterone treatment rapidly increases activity in Gambel's white-crowned sparrows (Zonotrichia leucophrys gambelii). Gen Comp Endocrinol (1998) 1.42
Seasonal changes in testosterone, neural attributes of song control nuclei, and song structure in wild songbirds. J Neurosci (1997) 1.27
Sex differences in plasma concentrations of steroids during the sensitive period for brain differentiation in the zebra finch. J Endocrinol (1984) 1.26
Visual and nutritional food cues fine-tune timing of reproduction in a neotropical rainforest bird. J Exp Zool (2000) 1.25
Seasonal changes in song nuclei and song behavior in Gambel's white-crowned sparrows. J Neurobiol (1995) 1.24
Gonadotropin-inhibitory peptide in song sparrows (Melospiza melodia) in different reproductive conditions, and in house sparrows (Passer domesticus) relative to chicken-gonadotropin-releasing hormone. J Neuroendocrinol (2003) 1.23
Season and migration alters the corticosterone response to capture and handling in an Arctic migrant, the white-crowned sparrow (Zonotrichia leucophrys gambelii). Comp Biochem Physiol C Pharmacol Toxicol Endocrinol (1997) 1.23
Effects of corticosterone on territorial behavior of free-living male song sparrows Melospiza melodia. Horm Behav (1986) 1.20
Seasonal changes in avian song nuclei without seasonal changes in song repertoire. J Neurosci (1991) 1.20
The role of sex steroids in the acquisition and production of birdsong. Nature (1989) 1.19
Gonadotropin-inhibitory hormone in Gambel's white-crowned sparrow (Zonotrichia leucophrys gambelii): cDNA identification, transcript localization and functional effects in laboratory and field experiments. J Endocrinol (2004) 1.17
Sex steroid levels in Porichthys notatus, a fish with alternative reproductive tactics, and a review of the hormonal bases for male dimorphism among teleost fishes. Horm Behav (1993) 1.16
Seasonal and acute changes in adrenocortical responsiveness in an arctic-breeding bird. Horm Behav (1995) 1.16
Corticosterone, reproductive status, and body mass in a cooperative breeder, the Florida scrub-jay (Aphelocoma coerulescens). Physiol Zool (1997) 1.12
Dehydroepiandrosterone in songbird plasma: seasonal regulation and relationship to territorial aggression. Gen Comp Endocrinol (2001) 1.12
Short-term changes in plasma levels of hormones during establishment and defense of a breeding territory in male song sparrows, Melospiza melodia. Horm Behav (1985) 1.09
Acute and chronic effects of an aromatase inhibitor on territorial aggression in breeding and nonbreeding male song sparrows. J Comp Physiol A (2001) 1.09
Seasonal changes in gonadal hormone levels of adult male canaries and their relation to song. Behav Neural Biol (1987) 1.07
Long-term unpredictable foraging conditions and physiological stress response in mountain chickadees (Poecile gambeli). Gen Comp Endocrinol (2001) 1.06
Roles of photoperiod and testosterone in seasonal plasticity of the avian song control system. J Neurobiol (1997) 1.05
Oestrogen regulates male aggression in the non-breeding season. Proc Biol Sci (2000) 1.05
Androgen regulation of hypothalamic neurons containing gonadotropin-releasing hormone in a cichlid fish: integration with social cues. Horm Behav (1996) 1.04
Differential mechanisms for regulation of the stress response across latitudinal gradients. Am J Physiol Regul Integr Comp Physiol (2003) 1.03
Testosterone and year-round territorial aggression in a tropical bird. Gen Comp Endocrinol (2000) 1.03
Androgen-metabolizing enzymes show region-specific changes across the breeding season in the brain of a wild songbird. J Neurobiol (1999) 1.02
Effects of ambient temperature on photo-induced prolactin secretion in three subspecies of white-crowned sparrow, Zonotrichia leucophrys. Gen Comp Endocrinol (1999) 1.02
Central administration of chicken gonadotropin-releasing hormone-II enhances courtship behavior in a female sparrow. Horm Behav (1997) 1.02
Steroid hormones and paternal care in the plainfin midshipman fish (Porichthys notatus). Horm Behav (1999) 1.01
Diel rhythms of basal and stress-induced corticosterone in a wild, seasonal vertebrate, Gambel's white-crowned sparrow. J Exp Zool (1999) 1.00
Seasonal growth of song control nuclei precedes seasonal reproductive development in wild adult song sparrows. Gen Comp Endocrinol (2001) 0.98
Ecological factors underlying the adrenocortical response to capture stress in arctic-breeding shorebirds. Gen Comp Endocrinol (2001) 0.98
Effects of sexual interactions with a male on fos-like immunoreactivity in the female quail brain. J Neuroendocrinol (1999) 0.97
Copulation activates Fos-like immunoreactivity in the male quail forebrain. Behav Brain Res (1997) 0.97
Hypothalamic-pituitary-adrenal axis changes allow seasonal modulation of corticosterone in a bird. Am J Physiol (1998) 0.97
Latitudinal distribution, migration, and testosterone levels in birds. Am Nat (2008) 0.96
The influence of social cues on the reproductive endocrinology of male brown-headed cowbirds: field and laboratory studies. Horm Behav (1986) 0.96
Seasonal changes in androgen receptor immunoreactivity in the song nucleus HVc of a wild bird. J Comp Neurol (1999) 0.95
Stimulatory effects on the reproductive axis in female songbirds by conspecific and heterospecific male song. Horm Behav (2000) 0.94
Acyl composition of muscle membranes varies with body size in birds. J Exp Biol (2002) 0.94
Environmental and endocrine control of reproduction in the song sparrow, Melospiza melodia. I. Temporal organization of the breeding cycle. Gen Comp Endocrinol (1984) 0.94
Contributions of social cues and photoperiod to seasonal plasticity in the adult avian song control system. J Neurosci (1999) 0.93
Year-class differences in the reproductive system, plasma prolactin and corticosterone concentrations, and onset of prebasic molt in male dark-eyed juncos (Junco hyemalis) during the breeding period. Gen Comp Endocrinol (2000) 0.93
The effect of corticosterone on standard metabolic rates of small passerine birds. J Comp Physiol B (1991) 0.93
Contributions of bird studies to biology. Science (1989) 0.92
Gonadotrophin-inhibitory hormone: a multifunctional neuropeptide. J Neuroendocrinol (2009) 0.91
Corticosterone treatment has no effect on reproductive hormones or aggressive behavior in free-living male tree sparrows, Spizella arborea. Horm Behav (2000) 0.91
Seasonal changes in the size of the avian song control nucleus HVC defined by multiple histological markers. J Comp Neurol (1997) 0.90
Social and breeding status are associated with the expression of GnIH. Genes Brain Behav (2011) 0.90
Hypertrophy of gonadotropin releasing hormone-containing neurons after castration in the teleost, Haplochromis burtoni. J Neurobiol (1992) 0.88
Seasonal plasticity of the song control system in wild Nuttall's white-crowned sparrows. J Neurobiol (1998) 0.88
Environmental and endocrine control of reproduction in the song sparrow, Melospiza melodia. II. Agonistic interactions as environmental information stimulating secretion of testosterone. Gen Comp Endocrinol (1984) 0.87
Effects of acute treatment with 8-OH-DPAT and fluoxetine on aggressive behaviour in male song sparrows (Melospiza melodia morphna). J Neuroendocrinol (2003) 0.87
External and internal influences on indices of physiological stress. I. Seasonal and population variation in adrenocortical secretion of free-living lizards, Sceloporus occidentalis. J Exp Zool (1995) 0.87
Hypothalamic pro-GnRH-GAP, GnRH-I and GnRH-II during the onset of photorefractoriness in the white-crowned sparrow (Zonotrichia leucophrys gambelii). J Neuroendocrinol (2006) 0.87
The effects of androgen and antiandrogen on dominance and aggressiveness in male red-winged blackbirds. Horm Behav (1980) 0.86
Neither testicular androgens nor embryonic aromatase activity alters morphology of the neural song system in zebra finches. Biol Reprod (1996) 0.86
Passive flow through an unstalked intertidal ascidian: orientation and morphology enhance suspension feeding in Pyura stolonifera. Biol Bull (2004) 0.85
Reproductive endocrinology of birds. Annu Rev Physiol (1980) 0.85
Hormonal correlates of breeding status, nest construction, and parental care in multiple-brooded northern mockingbirds, Mimus polyglottos. Horm Behav (1995) 0.85
Avian eggs: thermoregulatory value of very high near-infrared reflectance. Science (1978) 0.85
NPY increases food intake in white-crowned sparrows: effect in short and long photoperiods. Am J Physiol (1995) 0.85
Responses of photosensitive and photorefractory male white-crowned sparrows (Zonotrichia leucophrys gambelii) to synthetic mammalian luteinizing hormone releasing hormone (syn-LHRH). Biol Reprod (1979) 0.84
Noninvasive methods for measuring and manipulating corticosterone in hummingbirds. Gen Comp Endocrinol (2000) 0.84
Intraventricular infusion of arginine vasotocin induces singing in a female songbird. J Neuroendocrinol (1997) 0.84
Alterations in hypothalamic-pituitary-adrenal function associated with captivity in Gambel's white-crowned sparrows (Zonotrichia leucophrys gambelii). Comp Biochem Physiol B Biochem Mol Biol (1999) 0.84
Decreases in mineralocorticoid but not glucocorticoid receptor mRNA expression during the short Arctic breeding season in free-living Gambel's white-crowned sparrow (Zonotrichia leucophrys gambelii). J Neuroendocrinol (2015) 0.83
Physiologic properties of steroid hormone-binding proteins in avian blood. Gen Comp Endocrinol (1984) 0.83
The effect of food temperature on postprandial metabolism in albatrosses. J Exp Biol (2008) 0.83
The influence of testosterone on territorial defence and parental behavior in male free-living rufous whistlers, Pachycephala rufiventris. Horm Behav (2001) 0.81
Effects of vasoactive intestinal peptide on plasma prolactin in passerines. Gen Comp Endocrinol (1999) 0.81
Lipopolysaccharide injection induces rapid decrease of hypothalamic GnRH mRNA and peptide, but does not affect GnIH in zebra finches. Horm Behav (2012) 0.81
Rapid behavioral response to corticosterone varies with photoperiod and dose. Horm Behav (2000) 0.81
Identity of gonadotropin-releasing hormone in passerine birds: comparison of GnRH in song sparrow (Melospiza melodia) and starling (Sturnus vulgaris) with five vertebrate GnRHs. Gen Comp Endocrinol (1988) 0.81
Changes in pituitary and adrenal sensitivities allow the snow bunting (Plectrophenax nivalis), an Arctic-breeding song bird, to modulate corticosterone release seasonally. J Comp Physiol B (1998) 0.81
Hormones and territorial behavior during breeding in snow buntings (Plectrophenax nivalis): an Arctic-breeding songbird. Horm Behav (1998) 0.81
Dietary cholesterol enhances torpor in a rodent hibernator. J Comp Physiol B (1997) 0.80
Autumnal territorial aggression is independent of plasma testosterone in mockingbirds. Horm Behav (1990) 0.80
Muscarinic cholinergic receptors in the songbird and quail brain: a quantitative autoradiographic study. J Comp Neurol (1990) 0.80
Immunohistochemical localization of neuropeptides in the vocal control regions of two songbird species. J Comp Neurol (1988) 0.80
A new key neurohormone controlling reproduction, gonadotrophin-inhibitory hormone in birds: discovery, progress and prospects. J Neuroendocrinol (2009) 0.80
Correlation between blood level of androgens and sexual behavior in male leopard frogs, Rana pipiens. Gen Comp Endocrinol (1976) 0.80
Neuroendocrine suppression of female courtship in a wild passerine: corticotropin-releasing factor and endogenous opioids. J Neuroendocrinol (1998) 0.80
Behavioral and endocrine correlates of multiple brooding in the semicolonial house sparrow Passer domesticus. I. Males. Horm Behav (1986) 0.79
Seasonal changes in adrenal sensitivity alter corticosterone levels in Gambel's white-crowned sparrows (Zonotrichia leucophrys gambelii). Comp Biochem Physiol C Pharmacol Toxicol Endocrinol (1998) 0.79
Effects of N-methyl-D-aspartate on luteinizing hormone release and Fos-like immunoreactivity in the male White-crowned sparrow (Zonotrichia leucophrys gambelii). Endocrinology (1999) 0.79
Behavioral and endocrine correlates of multiple brooding in the semicolonial house sparrow Passer domesticus. II. Females. Horm Behav (1986) 0.79
The hypothalamus and adrenal regulate modulation of corticosterone release in redpolls (Carduelis flammea--an arctic-breeding song bird). Gen Comp Endocrinol (1998) 0.79
Influence of weather on reproduction. J Exp Zool (1984) 0.78
Seasonal changes in plasma cortisol, testosterone and oestradiol-17beta-in the plaice, Pleuronectes platessa L. Gen Comp Endocrinol (1977) 0.78
Effect of day length on plasma FSH and LH in castrated and intact white-crowned sparrows. Gen Comp Endocrinol (1980) 0.77
Effect of day length on luteinizing hormone beta-subunit mRNA and subsequent gonadal growth in the white-crowned sparrow, Zonotrichia leucophrys gambelii. Gen Comp Endocrinol (1994) 0.77
Changes in testicular and plasma androgens with photoperiodically induced increase in plasma LH in the house sparrow. Gen Comp Endocrinol (1982) 0.77