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Influence of Astronomical (Lunar)/Meteorological Factors on the Onset of Dawn Song Chorus in the Pied Bush Chat (Saxicola caprata)


Affiliations
1 Avian Diversity and Bioacoustics Laboratory, Department of Zoology and Environmental Science, Gurukula Kangri University, Haridwar 249 404, India
 

Climatic factors which prevail during the breeding season of avian species in spring and early summer may trigger the onset of singing behaviour in songbirds. To understand the effect of climatic variables on the onset of dawn song chorus, we conducted a study in the natural habitats of a tropical songbird, the Pied Bush Chat Saxicola caprata in Haridwar, Himalayan foothills, India during early spring. The results indicated that the onset time of dawn chorus depends on a number of environmental factors. The song bout length depended on daily temperature, rainfall rate, wind direction, photoperiod, lunar phase, indices of apparent temperature, dew point, sunrise timing and day length, whereas the song rate depended on daily temperature, photoperiod, indices of apparent temperatures, dew point, sunrise timing and day length. Further, stepwise multiple regression revealed that onset time of dawn chorus was dependent on photoperiod and lunar phase, while song bout length and song rate were influenced by day length and sunrise timing respectively.

Keywords

Onset of Dawn Song, Pied Bush Chat, Tropical Songbird.
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  • Bruni, A., Mennill, D. J. and Foote, J. R., Dawn chorus start time variation in a temperate bird community: relationships with seasonality, weather, and ambient light. J. Ornithol., 2014, 155, 877–890.

  • Staicer, C. A., Spector, D. A. and Horn, A. G., The dawn chorus and other diel patterns in acoustic signaling. Ecol. Evol. Acoust. Commun., 1996, 426–453.

  • Allard, H. A., The first morning song of some birds of Washington, DC; its relation to light. Am. Nat., 1930, 64, 436–469.

  • Beaulieu, M. and Sockman, K. W., Song in the cold is ‘hot’: memory of and preference for sexual signals perceived under thermal challenge. Biol. Lett., 2012, 8, 751–753.

  • Hasan, N. M., The effect of environmental conditions on the start of dawn singing of blackbirds (Turdus merula) and Bulbuls (Pycnonotidae). Jordan J. Biol., 2010, 3, 13–16.

  • Hutchinson, J. M., Two explanations of the dawn chorus compared: how monotonically changing light levels favour a short break from singing. Anim. Behav., 2002, 64, 527–539.

  • Brown, T. J. and Handford, P., Why birds sing at dawn: the role of consistent song transmission. Ibis, 2003, 145, 120–129.

  • Scholander, P. F., Hock, R., Walters, V., Johnson, F. and Irving, L., Heat regulation in some arctic and tropical mammals and birds. Biol. Bull., 1950, 99, 237–258.

  • Ward, S. and Slater, P. J., Raised thermoregulatory costs at exposed song posts increase the energetic cost of singing for willow warblers Phylloscopus trochilus. J. Avian Biol., 2005, 36, 280–286.

  • Berg, K. S., Brumfield, R. T. and Apanius, V., Phylogenetic and ecological determinants of the neotropical dawn chorus. Proc. R. Soc. London, Ser., 2006, 273, 999–1005.

  • Da Silva, A., Valcu, M. and Kempenaers, B., Light pollution alters the phenology of dawn and dusk singing in common European songbirds. Philos. Proc. R. Soc. London B: Biol. Sci., 2015, 370, 20140126.

  • Eynon, A. E., Gale-damaged oak forest on Trap Rock Ridge. Audubon Field Notes, 1951, 5, 322–323.

  • Wilson, M. D. and Watts, B. D., Effect of moonlight on detection of Whip-poor-wills: implications for long-term monitoring strategies. J. Field Ornithol., 2006, 77, 207–211.

  • Wright, H. W. Morning awakening and even-song: second paper. Auk, 1913, 512–537.

  • Poesel, A., Kunc, H. P., Foerster, K., Johnsen, A. and Kempenaers, B., Early birds are sexy: male age, dawn song and extra pair paternity in blue tits, Cyanistes (formerly Parus) caeruleus. Anim. Behav., 2006, 72, 531–538.

  • Fonken, L. K., Kitsmiller, E., Smale, L. and Nelson, R. J., Dim nighttime light impairs cognition and provokes depressive-like responses in a diurnal rodent. J. Biol. Rhythms, 2012, 27, 319–327.

  • Foster, R. G. and Roenneberg, T., Human responses to the geophysical daily, annual and lunar cycles. Curr. Biol., 2008, 18, R784–R794.

  • Dabelsteen, T. and Mathevon, N., Why do songbirds sing intensively at dawn? Acta Ethol., 2002, 4, 65–72.

  • Curio, E., Verhaltensstudien am trauerschnäpper: beiträge zur ethologie und ökologie von muscicapa h. Hypoleuca pallas. P., Parey Berlin, 1959.

  • Nice, M. M., Studies in the Life History of the Song Sparrow, University of California Publications in Zoology, 1964, vol. 56, pp. 119–300.

  • Avery, M. I. and Krebs, J. R., Temperature and foraging success of great tits Parus major hunting for spiders. Ibis, 1984, 126, 33–38.

  • Davis, D. E., Observations on territorial behaviour of Least Flycatchers. Wilson Bull., 1959, 73–85.

  • Gottlander, K., Variation in the song rate of the male pied flycatcher Ficedula hypoleuca: causes and consequences. Anim. Behav., 1987, 35, 1037–1043.

  • Shaver, J. M., A preliminary report on the influence of light intensity upon the time of ending of the evening song of the robin and mockingbird. Wilson Bull., 1931, 43, 9–18.

  • Amrhein, V., Kunc, H. P. and Naguib, M., Non-territorial nightingales’ prospect territories during the dawn chorus. Proc. R. Soc. London, Ser., 2004, 271, S167–S169.

  • Hill, C. E., Copenhaver, K. A., Gangler, R. K. and Whaley, J. W., Does light intensity influence song output by northern mockingbirds. Chat, 2005, 69, 61–67.

  • Moller, A. P., Why mated songbirds sing so much: mate guarding and male announcement of mate fertility status. Am. Nat., 1991, 138, 994–1014.

  • Sethi, V. K., Bhatt, D. and Kumar, A., Song repertoire size of the Pied Bushchat Saxicola caprata. Curr. Sci., 2011, 100, 302–304.

  • Åström, G., Environmental influence on daily song activity of the Reed Bunting (Emberiza schoeniclus L.). Acta Universitatis Upsaliensis 6, 1976, p. 82.

  • Welling, P., Koivula, K. and Lahti, K., The dawn chorus is linked with female fertility in the Willow Tit (Parus montanus). J. Avian Biol., 1995, 26, 241–246.

  • York, J. E., Young, A. J. and Radford, A. N., Singing in the moonlight: dawn song performance of a diurnal bird varies with lunar phase. Biol. Lett., 2014, 10, 20130970.

  • Schmidt, K. A. and Belinsky, K. L., Voices in the dark: predation risk by owls influences dusk singing in a diurnal passerine. Behav. Ecol. Sociobiol., 2013, 67, 1837–1843.

  • Zahavi, A. and Zahavi, A., The Handicap Principle: A Missing Piece of Darwins Puzzle, Oxford University Press, 1999.

  • Searcy, W. A., Female choice of mates: a general model for birds and its application to red-winged blackbirds (Agelaius phoeniceus). Am. Nat., 1979, 114, 77–100.

  • Jarvinen, A., Geographical variation in temperature variability and predictability and their implications for the breeding strategy of the pied flycatcher Ficedula hypoleuca. Oikos, 1989, 54(3), 331–336.

  • Da Silva, A., Samplonius, J. M., Schlicht, E., Valcu, M. and Kempenaers, B., Artificial night lighting rather than traffic noise affects the daily timing of dawn and dusk singing in common European songbirds. Behav. Ecol., 2014, aru103.

  • Botero, C. A., Boogert, N. J., Vehrencamp, S. L. and Lovette, I. J., Climatic patterns predict the elaboration of song displays in mockingbirds. Curr. Biol., 2009, 19, 1151–1155.

  • Hecht Orzack, S. and Tuljapurkar, S., Reproductive effort in variable environments, or environmental variation is for the birds. Ecology, 2001, 82, 2659–2665.

  • Nordt, A. and Klenke, R., Sleepless in town – drivers of the temporal shift in dawn song in urban European blackbirds. PLoS ONE, 2013, 8, e71476.

  • Popp, J. W., Ficken, R. W. and Reinartz, J. A., Short-term temporal avoidance of interspecific acoustic interference among forest birds. Auk, 1985, 744–748.

  • Thomas, R. J., Eye size in birds and the timing of song at dawn. Proc. R. Soc. London, Ser., 2002, 269, 831–837.


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  • Influence of Astronomical (Lunar)/Meteorological Factors on the Onset of Dawn Song Chorus in the Pied Bush Chat (Saxicola caprata)

Abstract Views: 378  |  PDF Views: 120

Authors

Navjeevan Dadwal
Avian Diversity and Bioacoustics Laboratory, Department of Zoology and Environmental Science, Gurukula Kangri University, Haridwar 249 404, India
Dinesh Bhatt
Avian Diversity and Bioacoustics Laboratory, Department of Zoology and Environmental Science, Gurukula Kangri University, Haridwar 249 404, India

Abstract


Climatic factors which prevail during the breeding season of avian species in spring and early summer may trigger the onset of singing behaviour in songbirds. To understand the effect of climatic variables on the onset of dawn song chorus, we conducted a study in the natural habitats of a tropical songbird, the Pied Bush Chat Saxicola caprata in Haridwar, Himalayan foothills, India during early spring. The results indicated that the onset time of dawn chorus depends on a number of environmental factors. The song bout length depended on daily temperature, rainfall rate, wind direction, photoperiod, lunar phase, indices of apparent temperature, dew point, sunrise timing and day length, whereas the song rate depended on daily temperature, photoperiod, indices of apparent temperatures, dew point, sunrise timing and day length. Further, stepwise multiple regression revealed that onset time of dawn chorus was dependent on photoperiod and lunar phase, while song bout length and song rate were influenced by day length and sunrise timing respectively.

Keywords


Onset of Dawn Song, Pied Bush Chat, Tropical Songbird.

References





DOI: https://doi.org/10.18520/cs%2Fv113%2Fi02%2F329-334