Search Results - "Dittami, J"

Patterns of anogenital swelling size and their endocrine correlates during ovulatory cycles and early pregnancy in free-ranging barbary macaques (Macaca sylvanus) of Gibraltar by Möhle, U., Heistermann, M., Dittami, J., Reinberg, V., Hodges, J.K.

“…In macaques and other cercopithecoid primates, large anogenital swellings (AS) are generally found only in those species in which reproduction is not…”
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Sex and Age Differences in Mass, Morphology, and Annual Cycle in European Ground Squirrels, Spermophilus citellus by Millesi, Eva, Strijkstra, Arjen M., Hoffmann, Ilse E., Dittami, John P., Daan, Serge

“…We collected 6 years of data (1990-1995) on survival, hibernation, body-mass changes, and morphological parameters for a suburban population of European ground…”
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Reproductive Decisions in Female European Ground Squirrels: Factors Affecting Reproductive Output and Maternal Investment by Millesi, Eva, Huber, Susanne, Everts, Lammina G., Dittami, John P.

“…Physiological and behavioural parameters associated with reproductive effort and success were investigated in female European ground squirrels Spermophilus…”
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Hibernation effects on memory in European ground squirrels (Spermophilus citellus) by Millesi, E, Prossinger, H, Dittami, J P, Fieder, M

“…Effects of hibernation on memory were tested in European ground squirrels (Spermophilus citellus). The animals were trained in summer to successfully…”
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The autumnal fattening of the long-distance migratory garden warbler (Sylvia borin) is stimulated by intermittent fasting by Totzke, U, Hübinger, A, Dittami, J, Bairlein, F

“…To investigate the proximate influence of a changing food availability on the seasonal fattening of migratory birds, garden warblers (Sylvia borin) following…”
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Postestrus Anogenital Swelling in Female Barbary Macaques The Larger, the Better? by WALLNER, B., DITTAMI, J.

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Water wave communication in the genus Bombina (amphibia) by Seidel, B., Yamashita, M., Choi, I.-H., Dittami, J.

“…Amphibians were phylogenetically the first vertebrates to leave the aquatic environment and cope with terrestrial conditions including effects of gravity and…”
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Circulating Oxytocin in Male Guinea Pigs Affected by the Female Cohabitation and Reproductive Condition by BARTH, R., WALLNER, B., DITTAMI, J., SCHAMS, D.

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Paternal effort and its relation to mating success in the European ground squirrel by Huber, Susanne, Millesi, Eva, Dittami, John P.

“…The necessity for parental care is a driving force for determining mating systems and social organization. The European ground squirrel, Spermophilus citellus,…”
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Vernal Changes in the Behavioral and Endocrine Responses to GnRH Application in Male European Ground Squirrels by Millesi, Eva, Hoffmann, Ilse E., Steurer, Sabine, Metwaly, Mohammed, Dittami, John P.

“…This field study was aimed at examining hypothalamic involvement in the behavioral changes of male European ground squirrels (Spermophilus citellus) before,…”
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Differential responses to male song repertoires in female songbirds implanted with oestradiol by Catchpole, C. K, Dittami, J, Leisler, B

“…It has been demonstrated recently that female songbirds implanted with oestradiol respond to playback of recorded song in laboratory conditions; the resulting…”
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Excreted corticosterone metabolites co-vary with ambient temperature and air pressure in male Greylag geese ( Anser anser) by Frigerio, Didone, Dittami, John, Möstl, Erich, Kotrschal, Kurt

“…In many species, seasonal activities such as reproduction or migration need to be fine-tuned with weather conditions. Air pressure and temperature changes are…”
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Estrus and Estrogen Changes in Mated and Unmated Free-Living European Ground Squirrels by Millesi, Eva, Huber, Susanne, Pieta, Katharin, Walzl, Manfred, Arnold, Walter, Dittami, John P.

“…The course of behavioral and vaginal estrus and patterns of circulating estrogens were followed in free-living European ground squirrels (Spermophilus…”
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Melatonin and the circadian rhythms of feeding and perch-hopping in the European starling, Sturnus vulgaris by BELDHUIS, H. J. A, DITTAMI, J. P, GWINNER, E

“…The role of melatonin plasma titers in the control of free-running circadian rhythms was investigated in European starlings, Sturnus vulgaris , held in…”
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Postjuvenile Molt in East African and Central European Stonechats (Saxicola torquata axillaris, S.t. rubicula) and Its Modification by Photoperiod by Gwinner, E., J. Dittami, H. Gwinner

“…Twenty-eight stonechats of the European race (Saxicola torquata rubicula) from Austria and thirty-one stonechats of the Central African race (S.t. axillaris)…”
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Reproductive suppression in male alpine marmots by ARNOLD, WALTER, DITTAMI, JOHN

“…Social groups of alpine marmots,Marmota marmotaoften contain several adult males only one of which is a dominant territorial male. How reproductive competition…”
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Effects of Nestboxes On LH, Testosterone, Testicular Size, and the Reproductive Behavior of Male European Starlings in Spring by Gwinner, Helga, Gwinner, Eberhard, Dittami, John

“…Abstract The effect of nestboxes on the vernal increase and decrease in reproductive activity was investigated in male European starlings (Sturnus vulgaris),…”
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Starling circannual systems: are they arrested in long photoperiods? by GWINNER, E, GÄNSHIRT, G, DITTAMI, J

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Pinealectomy affects the circannual testicular rhythm in european starlings (Sturnus vulgaris) by Gwinner, E., Dittami, J.

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Seasonal changes in follicle-stimulating hormone in a breeding population of barheaded geese, Anser indicus by Dittami, J P, Goldsmith, A R, Follett, B K

“…Changes in the plasma titers of follicle-stimulating hormone were investigated in a free-living population of barheaded geese over the whole year. Adult males…”
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