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Keywords: Molt
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Journal Articles
J Exp Biol (2018) 221 (18): jeb185058.
Published: 27 September 2018
... and reproductive timing. We conducted experiments with captive male house finches in which temperature was elevated within realistic ranges and the effects on the timing of preparations for reproduction, as well as on the termination of reproduction and the onset of prebasic feather molt, were examined. We found...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (14): 2569–2579.
Published: 15 July 2014
...Puja Budki; Shalie Malik; Sangeeta Rani; Vinod Kumar Circannual rhythms regulate seasonal reproduction in many vertebrates. The present study investigated whether circannual reproductive phenotypes (rhythms in growth of gonads and molt) were generated independently of the circadian clocks...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (10): 1808–1818.
Published: 15 May 2013
...Julien Bacqué-Cazenave; Flora Bouvet; Pascal Fossat; Daniel Cattaert; Jean Paul Delbecque SUMMARY We studied the effects of the molting hormone 20-hydroxyecdysone (20E) on leg sensory-motor networks of the red swamp crayfish, Procambarus clarkii . The hormone was injected in isolated crayfish...
Journal Articles
J Exp Biol (2012) 215 (21): 3774–3785.
Published: 1 November 2012
... temperature (18±1°C). Groups kept on natural day lengths (NDL) served as controls. Measurement of body mass, gonads and molts of the primary wing feathers and body plumage at regular intervals showed that birds underwent repeated cycles in gonads and molt, but not in body mass. Under NDL, gonadal phases...
Includes: Supplementary data
Journal Articles
J Exp Biol (2012) 215 (11): 1957–1964.
Published: 1 June 2012
... determined the consequences and potential costs of such overlap by comparing molt and behavioral patterns in both sexes of captive zebra finches ( Taeniopygia guttata castanotis ) that were solely molting or were overlapping breeding and molt. Individuals overlapping the early stages of breeding with molt...
Journal Articles
J Exp Biol (2009) 212 (2): 225–230.
Published: 15 January 2009
... the subsequent photoperiodic induction of reproductive (testis growth and molt) but not of metabolic (body fattening and mass gain)functions. The testicular response cycle under 16L:8D had a significantly lower amplitude in birds pretreated with P:A 6:18 than with P:A 12:12. Similarly, the recovery...
Journal Articles
J Exp Biol (2004) 207 (17): 3003–3014.
Published: 1 August 2004
...Eli S. Bridge SUMMARY Large and medium-sized alcids have a very intense wing molt wherein many flight feathers are shed in rapid succession and wing surface area is reduced by as much as 40%. Although these birds are rendered flightless during wing molt, they must still use their wings to propel...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2004) 207 (7): 1151–1161.
Published: 1 March 2004
...Xiaofeng Zhou; Baohua Zhou; James W. Truman; Lynn M. Riddiford SUMMARY Insect molting is triggered by ecdysteroids, which are produced in the prothoracic glands (PG). The broad ( br ) gene is one of the`early genes' directly regulated by ecdysteroids. Ectopic expression of the BR-Z3 isoform...