Gezeichnetes Bild mit einer Personengruppe, die vor Bäumen und einem Gebäude steht. Die Personengruppe beinhaltet Kinder, Frauen, Männer und eine schwangere Person. Im Hintergrund spielen zwei Personen Ball und eine Person fährt Fahrrad.

Publikationen von John Dittami

Zeitschriftenartikel (15)

2005
Zeitschriftenartikel
Dittami, J.; Gwinner, E.; Follett, B.K.; Prossinger, H.: Changes in circadian LH-secretion patterns and annual gonadal cycles in the male European starling (Sturnus vulgaris). Journal of Ornithology 146 (4), S. 338 - 347 (2005)
1993
Zeitschriftenartikel
Gwinner, E.; Schwabl-Benzinger, I.; Schwabl, H.; Dittami, J.: Twenty-four hour melatonin profiles in a nocturnally migrating bird during and between migratory seasons. General and Comparative Endocrinology 90 (1), S. 119 - 124 (1993)
1992
Zeitschriftenartikel
Janik, D.; Dittami, J.; Gwinner, E.: The effect of pinealectomy on circadian plasma melatonin levels in house sparrows and European starlings. Journal of Biological Rhythms 7 (4), S. 277 - 286 (1992)
1990
Zeitschriftenartikel
Gwinner, E.; Dittami, J.: Endogenous reproductive rhythms in a tropical bird. Science 249 (4971), S. 906 - 908 (1990)
1989
Zeitschriftenartikel
Gwinner, E.; Gänshirt, G.; Dittami, J.: Starling circannual systems: Are they arrested in long photoperiods? Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology 165 (1), S. 35 - 39 (1989)
1988
Zeitschriftenartikel
Beldhuis, H. J. A.; Dittami, J.; Gwinner, E.: Melatonin and the circadian rhythms of feeding and perch-hopping in the European starling, Sturnus vulgaris. Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology 164 (1), S. 7 - 14 (1988)
Zeitschriftenartikel
Gwinner, E.; Dittami, J.; Beldhuis, H. J. A.: The seasonal development of photoperiodic responsiveness in an equatorial migrant, the garden warbler Sylvia borin. Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology 162 (3), S. 389 - 396 (1988)
1987
Zeitschriftenartikel
Dittami, J.; Gwinner, E.: Circannual variations in plasma luteinizing hormone levels in castrated male European starlings (Sturnus vulgaris). Journal of Biological Rhythms 2 (3), S. 221 - 226 (1987)
Zeitschriftenartikel
Gwinner, H.; Gwinner, E.; Dittami, J.: Effects of nestboxes on LH, testosterone, testicular size, and the reproductive behavior on male European starlings in spring. Behaviour 103, S. 68 - 81 (1987)
1986
Zeitschriftenartikel
Reyer, H.-U.; Dittami, J.; Hall, M. R.: Avian helpers at the nest: Are they psychologically castrated? Ethology 71 (3), S. 216 - 228 (1986)
1985
Zeitschriftenartikel
Dittami, J.; Gwinner, E.: Annual cycles in the African stonechat, Saxicola torquata axillaris, and their relationship to environmental factors. Zoological Journal of the Linnean Society 207 (3), S. 357 - 370 (1985)
Zeitschriftenartikel
Schleußner, G.; Dittami, J.; Gwinner, E.: Testosterone implants affect molt in male European starlings, Sturnus vulgaris. Physiological Zoology 58 (8), S. 597 - 604 (1985)
1984
Zeitschriftenartikel
Dittami, J.; Reyer, H.-U.: A factor-analysis of seasonal, behavioral, hormonal and body-weight changes in adult male barheaded geese, Anser-indicus. Behaviour 90, S. 114 - 124 (1984)
1983
Zeitschriftenartikel
Gwinner, E.; Dittami, J.; Gwinner, H.: Postjuvenile molt in East African and Central European stonechats (Saxicola torquata axillaris, S. t. rubicola) and its modification by photoperiod. Oecologia 60 (1), S. 66 - 70 (1983)
1980
Zeitschriftenartikel
Gwinner, E.; Dittami, J.: Pinealectomy affects the circannual testicular rhythm in European Starlings (Sturnus vulgaris). Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology 136 (4), S. 345 - 348 (1980)

Buchkapitel (4)

1990
Buchkapitel
Dittami, J.; Gwinner, E.: Endocrine correlates of seasonal reproduction and territorial behavior in some tropical passerines. In: Endocrinology of birds: Molecular to behavioral, S. 225 - 233 (Hg. Wada, M.; Ishii, S.; Scanes, C. G.). Springer, Berlin (1990)
1987
Buchkapitel
Gwinner, E.; Dittami, J.: Adaptive functions of circannual clocks. In: Endocrine regulations as adaptive mechanisms to the environment, S. 115 - 123 (Hg. Assenmacher, I.; Boissin, J.). CNRS Publ., Paris (1987)
1985
Buchkapitel
Gwinner, E.; Dittami, J.: Photoperiodic responses in temperate-zone and equatorial stonechats: A contribution to the problem of photoperiodism in tropical organisms. In: The endocrine system and the environment, S. 279 - 294 (Hg. Follett, B.K.; Ishii, S.; Chandola, A.). Japan Sci. Soc. Press; Springer, Tokyo, Berlin, Heidelberg (1985)
1982
Buchkapitel
Gwinner, E.; Dittami, J.: Pineal influences on circannual cycles in European starlings: Effects through the circadian system? In: Vertebrate circadian systems: Structure and physiology, S. 276 - 284 (Hg. Aschoff, J.; Daan, S.; Groos, G.). Springer, Berlin, Heidelberg (1982)

Konferenzbeitrag (1)

1981
Konferenzbeitrag
Gwinner, E.; Wozniak, J.; Dittami, J.: The role of the pineal organ in the control of annual rhythms in birds. In: The Pineal Organ - Photobiology - Biochronometry - Endocrinology, S. 99 - 121 (Hg. Oksche, A.; Pévet, P.). Second Colloquium of the European Pineal Study Group (EPSG), Gießen, 01. Juli 1981 - 04. Juli 1981. Elsevier/North-Holland Biomedical Press, Amsterdam (1981)
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