Alistair Dawson

Summary

Affiliation: Centre for Ecology and Hydrology
Country: UK

Publications

  1. doi request reprint The effect of latitude on photoperiodic control of gonadal maturation, regression and molt in birds
    Alistair Dawson
    Centre for Ecology and Hydrology, Bush Estate, Penicuik, Midlothian EH26 0QB, United Kingdom
    Gen Comp Endocrinol 190:129-33. 2013
  2. pmc Detection of seroconversion to West Nile virus, Usutu virus and Sindbis virus in UK sentinel chickens
    Alan Buckley
    CEH Oxford, Mansfield Road, Oxford OX1 3SR, UK
    Virol J 3:71. 2006
  3. doi request reprint Seasonal changes in concentrations of plasma LH and prolactin associated with the advance in the development of photorefractoriness and molt by high temperature in the starling
    Alistair Dawson
    Centre for Ecology and Hydrology, Edinburgh, Bush Estate, Penicuik, Midlothian EH26 OQB, UK
    Gen Comp Endocrinol 167:122-7. 2010
  4. doi request reprint The involvement of prolactin in avian molt: the effects of gender and breeding success on the timing of molt in Mute swans (Cygnus olor)
    A Dawson
    Centre for Ecology and Hydrology, Midlothian, UK
    Gen Comp Endocrinol 161:267-70. 2009
  5. pmc Control of the annual cycle in birds: endocrine constraints and plasticity in response to ecological variability
    Alistair Dawson
    Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire PE28 2LS, UK
    Philos Trans R Soc Lond B Biol Sci 363:1621-33. 2008
  6. ncbi request reprint Photorefractoriness in birds--photoperiodic and non-photoperiodic control
    Alistair Dawson
    Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire PE28 2LS, UK
    Gen Comp Endocrinol 153:378-84. 2007
  7. pmc Seasonality in a temperate zone bird can be entrained by near equatorial photoperiods
    Alistair Dawson
    Centre for Ecology and Hydrology, Monks Wood, Huntingdon, Cambridge PE28 2LS, UK
    Proc Biol Sci 274:721-5. 2007
  8. ncbi request reprint Control of molt in birds: association with prolactin and gonadal regression in starlings
    Alistair Dawson
    Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire PE28 2LS, UK
    Gen Comp Endocrinol 147:314-22. 2006
  9. ncbi request reprint Seasonal differences in the secretion of luteinising hormone and prolactin in response to N-methyl-DL-aspartate in starlings (Sturnus vulgaris)
    A Dawson
    Centre for Ecology and Hydrology, Abbots Ripton, Huntingdon, Cambridgeshire, UK
    J Neuroendocrinol 17:105-10. 2005
  10. ncbi request reprint Ontogeny of the daily profile of plasma melatonin in European starlings raised under long or short photoperiods
    Alistair Dawson
    Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntington, Cambridgeshire, UK
    J Biol Rhythms 17:259-65. 2002

Collaborators

Detail Information

Publications27

  1. doi request reprint The effect of latitude on photoperiodic control of gonadal maturation, regression and molt in birds
    Alistair Dawson
    Centre for Ecology and Hydrology, Bush Estate, Penicuik, Midlothian EH26 0QB, United Kingdom
    Gen Comp Endocrinol 190:129-33. 2013
    ..However, there may be no difference between absolute and relative photorefractory species in how they utilise the annual cycle in photoperiod to time regression. ..
  2. pmc Detection of seroconversion to West Nile virus, Usutu virus and Sindbis virus in UK sentinel chickens
    Alan Buckley
    CEH Oxford, Mansfield Road, Oxford OX1 3SR, UK
    Virol J 3:71. 2006
    ..The proportion of seropositive chickens was higher for WNV than for Usutu virus or Sindbis virus. Attempts to isolate infectious virus or to detect viral RNA in the sera, failed...
  3. doi request reprint Seasonal changes in concentrations of plasma LH and prolactin associated with the advance in the development of photorefractoriness and molt by high temperature in the starling
    Alistair Dawson
    Centre for Ecology and Hydrology, Edinburgh, Bush Estate, Penicuik, Midlothian EH26 OQB, UK
    Gen Comp Endocrinol 167:122-7. 2010
    ..The higher temperature resulted in a significantly earlier decrease in prolactin and this may be causally related to the advance in molt...
  4. doi request reprint The involvement of prolactin in avian molt: the effects of gender and breeding success on the timing of molt in Mute swans (Cygnus olor)
    A Dawson
    Centre for Ecology and Hydrology, Midlothian, UK
    Gen Comp Endocrinol 161:267-70. 2009
    ..These males started to molt in mid August, at least 4 weeks later than females. It is concluded that molt is related to decreasing plasma prolactin, and is inhibited when plasma prolactin is increasing or high...
  5. pmc Control of the annual cycle in birds: endocrine constraints and plasticity in response to ecological variability
    Alistair Dawson
    Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire PE28 2LS, UK
    Philos Trans R Soc Lond B Biol Sci 363:1621-33. 2008
    ....
  6. ncbi request reprint Photorefractoriness in birds--photoperiodic and non-photoperiodic control
    Alistair Dawson
    Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire PE28 2LS, UK
    Gen Comp Endocrinol 153:378-84. 2007
    ....
  7. pmc Seasonality in a temperate zone bird can be entrained by near equatorial photoperiods
    Alistair Dawson
    Centre for Ecology and Hydrology, Monks Wood, Huntingdon, Cambridge PE28 2LS, UK
    Proc Biol Sci 274:721-5. 2007
    ..This proximate control could operate from near equatorial latitudes and would account for similar seasonal timing in individuals of a species over a wide range of latitudes...
  8. ncbi request reprint Control of molt in birds: association with prolactin and gonadal regression in starlings
    Alistair Dawson
    Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire PE28 2LS, UK
    Gen Comp Endocrinol 147:314-22. 2006
    ..This relationship between peak prolactin and the start of molt could explain the normally close relationship between the end of breeding activity and the start of molt...
  9. ncbi request reprint Seasonal differences in the secretion of luteinising hormone and prolactin in response to N-methyl-DL-aspartate in starlings (Sturnus vulgaris)
    A Dawson
    Centre for Ecology and Hydrology, Abbots Ripton, Huntingdon, Cambridgeshire, UK
    J Neuroendocrinol 17:105-10. 2005
    ..It is suggested that high circulating prolactin may fine-tune the timing of gonadal regression in advance of the inhibition of cGnRH-I synthesis...
  10. ncbi request reprint Ontogeny of the daily profile of plasma melatonin in European starlings raised under long or short photoperiods
    Alistair Dawson
    Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntington, Cambridgeshire, UK
    J Biol Rhythms 17:259-65. 2002
    ..Thus, consistent with responses of reproductive physiology, the pineal of young birds appears to be incapable of perceiving, or adapting to, a short photoperiod...
  11. doi request reprint Migratory carryover effects and endocrinological correlates of reproductive decisions and reproductive success in female albatrosses
    Glenn T Crossin
    Centre for Ecology and Hydrology, Natural Environment Research Council, Bush Estate, Penicuik, Midlothian EH26 0QB, United Kingdom
    Gen Comp Endocrinol 176:151-7. 2012
    ..Results are discussed with reference to migratory carryover effects and how these can differentially affect the physiologies influencing reproductive decisions and reproductive success...
  12. doi request reprint Seasonal patterns of prolactin and corticosterone secretion in an Antarctic seabird that moults during reproduction
    Glenn T Crossin
    Centre for Ecology and Hydrology, Natural Environment Research Council, Bush Estate, Penicuik, Midlothian EH26 0QB, United Kingdom
    Gen Comp Endocrinol 175:74-81. 2012
    ..We present specific examples of the behavioural ecology of giant petrels which we conclude help mediate any potential hormonal conflicts between parental care and moult...
  13. doi request reprint Corticosterone predicts foraging behavior and parental care in macaroni penguins
    Glenn T Crossin
    Centre for Ecology and Hydrology, Natural Environment Research Council, Bush Estate, Penicuik, Midlothian EH26 0QB, United Kingdom
    Am Nat 180:E31-41. 2012
    ..Our results provide support for the corticosterone-adaptation hypothesis, which predicts that higher corticosterone levels support increased foraging activity and parental effort...
  14. ncbi request reprint The role of prolactin in the development of reproductive photorefractoriness and postnuptial molt in the European starling (Sturnus vulgaris)
    A Dawson
    Institute of Terrestrial Ecology, Huntingdon, Cambridgeshire, United Kingdom
    Endocrinology 139:485-90. 1998
    ..Further, the seasonal increase in PRL is required for the induction of the postnuptial molt...
  15. ncbi request reprint A comparison of the effects of single and repeated exposure to an organophosphate insecticide on acetylcholinesterase activity in mammals
    Sara M Long
    Natural Environment Research Council, Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire, PE28 2LS, United Kingdom
    Environ Toxicol Chem 25:1857-63. 2006
    ..Likely differences in exposure pattern between the laboratory and the natural environment are unlikely to bias the predictive power of these studies significantly...
  16. ncbi request reprint Serological evidence of West Nile virus, Usutu virus and Sindbis virus infection of birds in the UK
    Alan Buckley
    Centre for Ecology and Hydrology Oxford, Institute of Virology and Environmental Microbiology, Mansfield Road, Oxford OX1 3SR, UK
    J Gen Virol 84:2807-17. 2003
    ..The potential health risk posed to humans and animals by these viruses circulating in the UK is discussed...
  17. pmc Rate of moult affects feather quality: a mechanism linking current reproductive effort to future survival
    A Dawson
    Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire PE28 2LS, UK
    Proc Biol Sci 267:2093-8. 2000
    ..Poorer quality plumage will lead to decreased survival due to decreased flight performance and increased thermoregulatory costs. Thus, reproduction incurs costs through a mechanism that operates after the end of breeding...
  18. ncbi request reprint Changes in basal hypothalamic chicken gonadotropin-releasing hormone-I and vasoactive intestinal polypeptide associated with a photo-induced cycle in gonadal maturation and prolactin secretion in intact and thyroidectomized starlings (Sturnus vulgaris)
    A Dawson
    Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambs, Roslin Institute, Roslin, Midlothian, UK
    J Neuroendocrinol 14:533-9. 2002
    ..The mechanisms responsible for the decrease in prolactin in long-term photorefractory birds and for the total lack of photoperiodic responses in thyroidectomized birds remain unresolved...
  19. ncbi request reprint The effects of a single long photoperiod on induction and dissipation of reproductive photorefractoriness in European starlings
    A Dawson
    Centre for Ecology and Hydrology, Abbots Ripton, Huntingdon, Cambridgeshire, PE28 2LS, United Kingdom
    Gen Comp Endocrinol 121:316-24. 2001
    ..That gonadal maturation precedes regression must reflect the relative rates at which the two processes reach completion...
  20. ncbi request reprint Evidence against a period of relative photorefractoriness during the recovery of photosensitivity in common starlings
    Alistair Dawson
    Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire PE28 2LS, UK
    Gen Comp Endocrinol 136:117-21. 2004
    ..Therefore, starlings do not pass through a period of relative photorefractoriness during the dissipation of absolute photorefractoriness...
  21. ncbi request reprint Thyroidectomy of house sparrows (Passer domesticus) prevents photo-induced testicular growth but not the increased hypothalamic gonadotrophin-releasing hormone
    A Dawson
    Institute of Terrestrial Ecology, Huntingdon, Cambridgeshire, United Kingdom
    Gen Comp Endocrinol 110:196-200. 1998
    ..It is suggested that in this species, thyroidectomy inhibits the release of GnRH as well as preventing the downregulation of GnRH synthesis normally associated with the development of photorefractoriness...
  22. ncbi request reprint Sexual maturation in starlings raised on long or short days: changes in hypothalamic gonadotrophin-releasing hormone and plasma LH concentrations
    A Dawson
    NERC Institute of Terrestrial Ecology, Monks Wood Experimental Station, Huntingdon, Cambridgeshire
    J Endocrinol 123:189-96. 1989
    ....
  23. doi request reprint A carryover effect of migration underlies individual variation in reproductive readiness and extreme egg size dimorphism in macaroni penguins
    Glenn T Crossin
    Centre for Ecology and Hydrology, Natural Environment Research Council, Penicuik, Midlothian, Scotland, United Kingdom
    Am Nat 176:357-66. 2010
    ..These data support the hypothesis that extreme egg size dimorphism in Eudyptes penguins is due to a physiological constraint imposed by a migratory carryover effect and argue against small A-eggs having a specific, adaptive function...
  24. ncbi request reprint Testosterone and autumn territorial behavior in male red grouse Lagopus lagopus scoticus
    Francois Mougeot
    Centre for Ecology and Hydrology, Banchory, Aberdeenshire AB31 4BW, UK
    Horm Behav 47:576-84. 2005
    ..However, the observation that flutamide and ATD treatment did not reduce territorial behavior, suggests that estradiol may also be involved in the regulation of non-breeding aggression...
  25. ncbi request reprint Photoperiodic control of seasonality in birds
    A Dawson
    Centre for Ecology and Hydrology, Huntingdon, Cambridgeshire, UK
    J Biol Rhythms 16:365-80. 2001
    ..There is no seasonal change in the birth of neurons but rather in their survival. Testosterone and melatonin appear to work antagonistically in regulating volume...
  26. ncbi request reprint Hypothalamic expression of thyroid hormone-activating and -inactivating enzyme genes in relation to photorefractoriness in birds and mammals
    Tsuyoshi Watanabe
    Division of Biomodeling, Graduate School of Bioagricultural Sciences and Institute for Advanced Research, Nagoya University, Furo cho, Chikusa ku, Nagoya 464 8601, Japan
    Am J Physiol Regul Integr Comp Physiol 292:R568-72. 2007
    ..These gene changes may be involved in the regulation of photorefractoriness, as well as photoinduction...
  27. ncbi request reprint Prior experience with photostimulation enhances photo-induced reproductive development in female European starlings: a possible basis for the age-related increase in avian reproductive performance
    Keith W Sockman
    Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, Maryland 21218, USA
    Biol Reprod 71:979-86. 2004
    ..Thus, prior experience with photostimulation enhances some initial phases of photo-induced reproductive development and may explain, in part, why reproductive performance improves with age in temperate-zone birds...