Involvement of Threshold Photoperiod in Control of Reproductive Rhythmicity in Migratory Blackheaded Bunting, Emberiza Melanocephala

References

• Ali S, Ripley S D. Handbook of birds of India and Pakistan. Compact edition vol. 10. Oxford University Press, Bombay 1983
   Google Scholar
• Bernard D J, Ball G F. Photoperiodic condition modulates the effect of testosterone on song control nuclei volumes in male European starlings. Gen Com Endocrinol 1997; 105: 276–83
   PubMed Web of Science ®Google Scholar
• Boswell T, Hall M R, Goldsmith A R. Annual cycles of migratory fattening, reproduction and moult in European quail (Coturnix coturnix). J Zool London 1993; 231: 627–44
   Web of Science ®Google Scholar
• Boswell T, Sharp P J, Hall M R, et al. Migratory fat deposition in European quail: a role for prolactin?. J Endocrinol 1995; 146: 71–79
   PubMedGoogle Scholar
• Brain P C, Onagbesan O M, Peddie M J, et al. Changes in plasma concentration of reproductive steroids in female Japanese quail (Coturnix coturnix japonica) raised on long or short photoperiods. Gen Com Endocrinol 1988; 69: 174–80
   PubMed Web of Science ®Google Scholar
• Brunning J L, Kintz B L. Computational handbook of statistics. 2nd ed. Scott, Foresman and Company, Glenview, IL. 1977
   Google Scholar
• Farner D S. Annual rhythms. Annu Rev Physiol 1985; 47: 65–82
   PubMed Web of Science ®Google Scholar
• Farner D S, Follett B K. Light and other environmental factors affecting avian reproduction. J Anim Sci 1966; 25: 90–118
   PubMed Web of Science ®Google Scholar
• Farner D S, Lewis R A. Photoperiodism and reproductive cycles in birds. Photophysiology, A C Giese. Academic Press, New York 1971; 325–70, 6
   Google Scholar
• Foster D L, Ebling F JP, Clarypool L E, et al. Cessation of long day melatonin rhythms time puberty in a short day breeder. Endocrinology 1988; 123: 1636–41
   PubMedGoogle Scholar
• Gwinner E. Circannual rhythms. Springer-Verlag, Berlin 1986
   Google Scholar
• Hahn T P. Integration of photoperiodic and food cues to time changes in reproductive physiology by an opportunistic breeder, the red crossbill, Loxia curvirostra (Aves: Carduelinae). J Exp Zool 1995; 272: 213–26
   Google Scholar
• Jain N, Kumar V. Changes in food intake, body weight, gonads and plasma concentrations of thyroxine, luteinizing hormone and testosterone in captive male buntings exposed to natural day lengths at 29°N. J Biosci 1995; 20(3)417–26
   Google Scholar
• Kumar B S, Kumar V. Photoperiodic control of annual reproductive cycle in subtropical Brahminy Myna Sturnus pagodarum. Gen Com Endocrinol 1993; 89: 149–60
   PubMed Web of Science ®Google Scholar
• Kumar V, Jain V, Singh B P, et al. Plasma levels of luteinizing hormones in intact and castrated blackheaded bunting (Emberiza melanocephala) exposed to stimulatory and nonstimulatory photoperiods. Reprod Nutr Dev 1993; 33: 143–50
   PubMedGoogle Scholar
• Kumar V, Kumar B S. Entrainment of circadian system and variable photocycles (T-photocycle) alters the critical day length for photoperiodic induction in black-headed buntings. J Exp Zool 1995; 273(4)297–302
   Google Scholar
• Kumar V, Tewary P D. Response to experimental photoperiods by a migratory bunting, Emberiza melanocephala. IBIS 1983; 125: 305–12
   Web of Science ®Google Scholar
• Lofts B. Photoperiod and the refractory period of reproduction in an equatorial bird, Quelea quelea. IBIS 1962; 104: 407–14
   Google Scholar
• Lofts B, Murton R K. Photoperiodic and physiological adaptations regulating avian breeding cycles and their ecological significance. J Zool 1969; 155: 327–54
   Google Scholar
• Lofts B, Murton R K, Westwood N J. Photoresponses of the wood pigeon, Columba palumbus, in relation to the breeding season. IBIS 1967; 109: 338–51
   Web of Science ®Google Scholar
• Malpaux B, Robinson J E, Wayne N L, et al. Regulation of the onset of the breeding season of the ewe: importance of long days and of an endogenous reproductive rhythm. J Endocrinol 1989; 122: 267–78
   Google Scholar
• Meijer T, Rozman J, Schulte M, et al. New findings in body mass regulation in zebra finches (Taeniopygia guttata) in response to photoperiod and temperature. J Zool Lond 1996; 240: 717–34
   Google Scholar
• Miller A H. Response to experimental light increments by Andean sparrows from an equatorial region. Condor 1959; 61: 344–47
   Google Scholar
• Ravikumar G, Senthilkumarn B, Tewary P D, et al. Circadian aspects of photoperiodic time measurement in a female house sparrow, Passer domesticus. J Biol Rhythm 1959; 10(4)319–23
   Google Scholar
• Reinert B D, Wilson F E. The thyroid and the hypofhalamus-pituitary-ovarian axis in American tree sparrows (Spizella arborea). Gen Com Endocrinol 1996; 103: 60–70
   PubMedGoogle Scholar
• Schwabl H, Schwabl-Benzinger I, Goldsmith A R, et al. Effects of ovariectomy on long day induced premigratory fat deposition, plasma levels of luteinizing hormone and prolactin, and molt in white-crowned sparrows, Zonotrichia leucophrys gam-belii. Gen Com Endocrinol 1988; 71: 398–405
   PubMedGoogle Scholar
• Sweeny T, Donovan A, Roche J F, et al. Variation in the ability of a long day followed by a short day photoperiod signal to initiate reproductive activity in ewes at different times of the year. J Reprod Fertil 1997; 109: 121–27
   PubMedGoogle Scholar
• Tewary P D, Dixit A S. Photoperiodic control of the ovarian cycle in the rosefinch, Carpodacus erythrinus. J Exp Zool 1983; 228: 537–42
   Google Scholar
• Tewary P D, Dixit A S. Photoperiodic regulation of reproduction in a subtropical female yellow throated sparrow (Gymnorhis xanthocollis). Condor 1986; 88: 70–73
   Google Scholar
• Tewary P D, Kumar V. Photoperiodic response of a subtropical migratory finch, the blackheaded bunting (Emberiza melanocephala). Condor 1982; 84: 168–71
   Web of Science ®Google Scholar
• Tewary P D, Kumar V, Prasad B N. Influence of photoperiod in a sub-tropical migratory finch, common Indian rosefinch (Carpodacus erythrinus). IBIS 1982; 125: 115–20
   Google Scholar
• Tewary P D, Kumar V, Srivastava V P. Photoperiodically induced ovarian growth in common Indian rose finch (Carpodacus eryhthrinus). Comp Physiol Ecol 1983; 8(3)234–36
   Google Scholar
• Tewary P D, Ravikumar G. Photoperiodic threshold for the initiation of gonadal growth in the subtropical population of house sparrow, Passer domesticus. J Biol Res 1989; 9(1)1–7
   Google Scholar
• Tewary P D, Tripathi B K. Photoperiodic control of reproduction in a female migratory bunting (Emberiza bruniceps). J Exp Zool 1983; 226: 269–72
   Google Scholar
• Tewary P D, Tripathi B K, Kumar V. Effect of exogenous prolactin on ovarian growth and fattening in redheaded bunting, Emberiza bruniceps. Gen Com Endocrinol 1983; 52: 315–18
   PubMed Web of Science ®Google Scholar
• Thapliyal J P, Tewary P D. Effect of light on the pituitary, gonads and plumage pigmentation in the avadavat (Estrilda amandava) and bayaweaver (Ploceus phili-pinus). Proc Zool Soc 1964; 142: 62–71
   Google Scholar
• Tsutsui K, Saxena T, Saxena R N. Effects of season and photoperiod on the plasma and intratesticular testosterone levels in Indian weaver birds inhabiting the subtropical zone. J Exp Zool 1994; 270: 381–17
   Google Scholar
• Wayne N L, Malpaux B, Karsch F J. Photoperiodic requirements for timing onset and duration of the breeding season of the ewe: synchronization of an endogenous rhythm of reproduction. J Comp Physiol 1990; 166: 835–42
   PubMed Web of Science ®Google Scholar
• Wilson F E, Reinert B D. The timing of thyroid dependent programming in seasonally breeding male American tree sparrows (Spizella arborea). Gen Com Endocrinol 1996; 103: 82–92
   PubMedGoogle Scholar
• Wingfield J C. Environmental and endocrine control of reproduction: an ecological approach. Avian endocrinology: environmental and ecological prospectives. Japan Scientific Society Press, S I Mikami, K Homma, M Wada. Springer-Verlag, Berlin 1983; 265–88
   Google Scholar
• Wingfield J C, Hahn T P, Doak D. Integration of environmental factors regulating transitions of physiological state, morphology and behaviour. Avian endocrinology, P J Sharp. Journal of Endocrinology Ltd., Bristol 1993; 111–22
   Google Scholar
• Wingfield J C, Hahn T P, Levin R, et al. Environmental predictability and control of gonadal cycles in birds. J Exp Zool 1992; 261: 214–31
   Google Scholar
• Wingfield J C, Hegner R E, Lewis D M. Circulating levels of luteinizing hormone and steroid hormones in relation to social status in the cooperatively breeding white browned sparrow weaver, Plocepasser mahali. J Zool Lond 1991; 225: 43–58
   Web of Science ®Google Scholar