+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Gonadal status upon spring arrival in long-distance and short-distance migrating stonechats (Saxicola torquata)

Gonadal status upon spring arrival in long-distance and short-distance migrating stonechats (Saxicola torquata)

Journal of Ornithology 146(4): 325-331

Long-distance migration is often associated with relatively short breeding seasons and a start of reproductive activities shortly after arrival. The full activation of the reproductive system from the regressed state takes, however, several weeks and must, therefore, be initiated in the winter quarters or during spring migration. Hence, long-distance migrants face a potential conflict between the energetic and temporal requirements of migration and the preparation for reproduction. We studied long-distance migratory Siberian stonechats in northern Kazakhstan and short- distance migratory European stonechats in Slovakia. We hypothesized that migratory distance and gonadal status at the time of arrival are related. We found that males of both populations arrived with gonads that were not fully developed. However, the populations neither differed in gonadal state at the time of arrival, nor in the rate of testicular development to the fully active state at the time of egg laying. The rate of the last stages of gonadal development may be determined by physiological constraints rather than by a trade-off between migration and reproduction. Within populations, passage migrants and local breeders could not be distinguished on the basis of their testicular development. However, passage migrants showed higher variation in gonadal size than local breeders, which could relate to the differences in migratory distance and hence reproductive timing.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 012130594

Download citation: RISBibTeXText

DOI: 10.1007/s10336-005-0010-z

Related references

Wing pointedness associated with migratory distance in common-garden and comparative studies of stonechats (Saxicola torquata). Journal of Evolutionary Biology 23(5): 1050-1063, 2010

Postjuvenile molt of european and african stonechats saxicola torquata rubicula and saxicola torquata axillaris and their f 1 hybrids. Journal fuer Ornithologie 126(2): 219-220, 1985

Post juvenile molt in east african and central european stonechats saxicola torquata axillaris saxicola torquata rubicula and its modification by photoperiod. Oecologia (Berlin) 60(1): 66-70, 1983

Timing of postjuvenal molt in African (Saxicola torquata axillaris) and European (Saxicola torquata rubicola) stonechats: effects of genetic and environmental factors. Auk 116(3): 589-603, 1999

Body mass variations of stonechats Saxicola torquata during breeding and moult Veranderungen der Korpermasse adulter Schwarzkehlchen Saxicola torquata in Beziehung zum Brut- und Mauserstatus. Vogelwelt 1181: 1-10, 1997

Pattern, extent and time aspects of the postjuvenile moult in stonechats Saxicola torquata Muster, Intensitat und zeitliche Aspekte der postjuvenilen Mauser beim Schwarzkehlchen Saxicola torquata. Vogelwarte. Oktober; 401-2: 11-27, 1999

A separate status for stonechats Saxicola torquata in Zealand Flanders?. Limosa 67(3): 101-108, 1994

Search strategies of wheatears oenanthe oenanthe and stonechats saxicola torquata adaptive variation in perch height search time sally distance and inter perch move length. Journal of Animal Ecology 53(1): 147-160, 1984

Search Strategies of Wheatears (Oenanthe oenanthe) and Stonechats (Saxicola torquata): Adaptive Variation in Perch Height, Search Time, Sally Distance and Inter-Perch Move Length. Journal of Animal Ecology 53(1): 147-159, 1984

Relationship between status and aggression in wintering stonechats, Saxicola torquata, in Israel. Taborsky, M, Taborsky, B Advances in Ethology; Contributions to the XXV International Ethological Conference: 147, 1997

Comparison of whinchats saxicola rubetra and stonechats saxicola torquata songs. Journal fuer Ornithologie 125(3): 261-278, 1984

Information from ringing stonechats (Saxicola torquata) and whinchats (Saxicola rubetra) in south west Lancashire. Bird Ringing in SW Lancashire. 1978 ; (8): 60-63, 1979

Comparison of the blood redox status between long-distance and short-distance runners. Physiological Research 55(6): 611-616, 2006

Investigations on infection status with H5 and H7 avian influenza virus in short-distance and long-distance migrant birds in 2001. Avian Diseases 51(1 Suppl.): 432-433, 2007

Head-scratching by stonechats Saxicola torquata. Ibis 1214: 501-504, 1979