Helm B - Search Results

1

Avian circannual clocks: adaptive significance and possible involvement of energy turnover in their proximate control.

Wikelski M, Martin LB, Scheuerlein A, Robinson MT, Robinson ND, Helm B, Hau M, Gwinner E. Wikelski M, et al. Among authors: helm b. Philos Trans R Soc Lond B Biol Sci. 2008 Jan 27;363(1490):411-23. doi: 10.1098/rstb.2007.2147. Philos Trans R Soc Lond B Biol Sci. 2008. PMID: 17638688 Free PMC article.

2

Flexible seasonal timing and migratory behavior: results from stonechat breeding programs.

Helm B, Gwinner E, Trost L. Helm B, et al. Ann N Y Acad Sci. 2005 Jun;1046:216-27. doi: 10.1196/annals.1343.019. Ann N Y Acad Sci. 2005. PMID: 16055855

3

Migratory restlessness in an equatorial nonmigratory bird.

Helm B, Gwinner E. Helm B, et al. PLoS Biol. 2006 Apr;4(4):e110. doi: 10.1371/journal.pbio.0040110. Epub 2006 Apr 4. PLoS Biol. 2006. PMID: 16555925 Free PMC article.

4

Daytime light intensity affects seasonal timing via changes in the nocturnal melatonin levels.

Kumar V, Rani S, Malik S, Trivedi AK, Schwabl I, Helm B, Gwinner E. Kumar V, et al. Among authors: helm b. Naturwissenschaften. 2007 Aug;94(8):693-6. doi: 10.1007/s00114-007-0243-1. Epub 2007 Apr 4. Naturwissenschaften. 2007. PMID: 17406847

5

Persistent diel melatonin rhythmicity during the Arctic summer in free-living willow warblers.

Silverin B, Gwinner E, Van't Hof TJ, Schwabl I, Fusani L, Hau M, Helm B. Silverin B, et al. Among authors: helm b. Horm Behav. 2009 Jun;56(1):163-8. doi: 10.1016/j.yhbeh.2009.04.002. Epub 2009 Apr 15. Horm Behav. 2009. PMID: 19374903

6

Circannual basis of geographically distinct bird schedules.

Helm B, Schwabl I, Gwinner E. Helm B, et al. J Exp Biol. 2009 May;212(Pt 9):1259-69. doi: 10.1242/jeb.025411. J Exp Biol. 2009. PMID: 19376946 Free article.

7

Phenology, seasonal timing and circannual rhythms: towards a unified framework.

Visser ME, Caro SP, van Oers K, Schaper SV, Helm B. Visser ME, et al. Among authors: helm b. Philos Trans R Soc Lond B Biol Sci. 2010 Oct 12;365(1555):3113-27. doi: 10.1098/rstb.2010.0111. Philos Trans R Soc Lond B Biol Sci. 2010. PMID: 20819807 Free PMC article. Review.

8

Annual cycles of metabolic rate are genetically determined but can be shifted by phenotypic flexibility.

Versteegh MA, Helm B, Gwinner E, Tieleman BI. Versteegh MA, et al. Among authors: helm b. J Exp Biol. 2012 Oct 1;215(Pt 19):3459-66. doi: 10.1242/jeb.073445. Epub 2012 Jul 5. J Exp Biol. 2012. PMID: 22771752

9

Avian migration: temporal multitasking and a case study of melatonin cycles in waders.

Helm B, Gwinner E, Koolhaas A, Battley P, Schwabl I, Dekinga A, Piersma T. Helm B, et al. Prog Brain Res. 2012;199:457-479. doi: 10.1016/B978-0-444-59427-3.00026-5. Prog Brain Res. 2012. PMID: 22877681 Review.

10

When the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds.

Steiger SS, Valcu M, Spoelstra K, Helm B, Wikelski M, Kempenaers B. Steiger SS, et al. Among authors: helm b. Proc Biol Sci. 2013 Jun 19;280(1764):20131016. doi: 10.1098/rspb.2013.1016. Print 2013 Aug 7. Proc Biol Sci. 2013. PMID: 23782884 Free PMC article.

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