Mind the gap: why neurological plasticity may explain seasonal interruption in humpback whale song

@article{Wright2010MindTG,
  title={Mind the gap: why neurological plasticity may explain seasonal interruption in humpback whale song},
  author={Andrew J. Wright and Leslie Walsh},
  journal={Journal of the Marine Biological Association of the United Kingdom},
  year={2010},
  volume={90},
  pages={1489 - 1491}
}
  • A. WrightL. Walsh
  • Published 30 June 2010
  • Environmental Science
  • Journal of the Marine Biological Association of the United Kingdom
Much is unknown about humpback whale (Megaptera novaeangliae) song. The behaviour is limited almost exclusively to males, occurs almost exclusively on the calving grounds and is identical within a population, although it changes periodically throughout the season. Much of current thinking associates humpback whale song with breeding, although it is not clear if it is intended to attract a mate, fend off challengers, or a combination of the two. There is, however, very little information on the… 

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............................................................................................................................... v Introduction

Climate change and marine mammals

peter g.h. evans, graham j. pierce and simone panigada Sea Watch Foundation, Ewyn y Don, Bull Bay, Amlwch, Anglesey, LL68 9SD, UK, School of Ocean Sciences, University of Bangor, Menai Bridge,

References

SHOWING 1-10 OF 26 REFERENCES

The social and reproductive biology of Humpback Whales: an ecological perspective

The widespread distribution of females resulting from absence of both predation and resources during the breeding season preclude simultaneous monopolization by males of more than one potential mate, and these factors, together with a male-biased operational sex ratio, minimize the possibility of competition among females.

Acoustic monitoring on a humpback whale (Megaptera novaeangliae) feeding ground shows continual singing into late spring

  • C. ClarkP. Clapham
  • Environmental Science
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 2004
It is suggested that the humpback whale breeding season should no longer be considered as confined to lower–latitude regions in winter and extends geographically and temporally onto feeding grounds into at least spring and early summer.

Humpback whales Megaptera novaeangliae in the Arabian Sea

  • M. Ya
  • Environmental Science
  • 1997
Overall, the data presented here argue strongly that Arabian Sea humpbacks constitute a discrete population which remains in tropical waters year-round, a situation which is unique for this specles.

Aspects of Reproduction in the Male Humpback Whale, Megaptera nodosa (Bonnaterre)

Changing testis weight, mean diameter of testis tubules, and number of sperms in testes and vas deferens fluid have been followed at various stages of the life cycle in male humpback whales for evidence of a seasonal cycle.

Seasonal growth of song control nuclei precedes seasonal reproductive development in wild adult song sparrows.

Investigation in two populations of wild song sparrows found that seasonal song system growth is completed before seasonal reproductive development in response to submaximal levels of circulating testosterone.

ACOUSTIC DETECTIONS OF SINGING HUMPBACK WHALES IN DEEP WATERS OFF THE BRITISH ISLES

From October 1996 through September 1998, we used bottom-mounted hydrophone arrays to monitor deep-water areas north and west of the British Isles for songs of humpback whales (Megupteru

Seasonal changes in avian song control circuits do not cause seasonal changes in song discrimination in song sparrows.

Results suggest that seasonal changes in the song control system do not affect birds' ability to make difficult song discriminations, regardless of the songs' similarity.

Act locally and think globally: Intracerebral testosterone implants induce seasonal-like growth of adult avian song control circuits

It is suggested that seasonal growth of the adult song circuits results from T acting directly on HVc, which then stimulates the growth of RA and area X transynaptically.

Androgens and estrogens induce seasonal-like growth of song nuclei in the adult songbird brain.

Examination of the effects of two bioactive T metabolites on song nucleus growth and song behavior in adult male white-crowned sparrows demonstrates that androgen and estrogen receptor binding are sufficient to trigger seasonalSong nucleus growth, and suggests that T's effects on seasonalsong nucleus growth may depend, in part, upon enzymatic conversion of T to bioactive metabolites.

Seasonal plasticity in the adult brain