Research Topics
| Andrew J YoungSummaryAffiliation: University of Cambridge Country: UK Publications
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Detail Information
Publications
Stress and the suppression of subordinate reproduction in cooperatively breeding meerkatsAndrew J Young
Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
Proc Natl Acad Sci U S A 103:12005-10. 2006..However, our findings raise the possibility that, in some cooperative breeders at least, dominants may employ stress-related suppression as a backup mechanism to guard against lapses in reproductive restraint by their subordinates...
The causes of physiological suppression among female meerkats: a role for subordinate restraint due to the threat of infanticide?Andrew J Young
Department of Zoology, University of Cambridge, Downing Street, Cambridge, CB2 3EJ, UK
Horm Behav 53:131-9. 2008....
Subordinate male meerkats prospect for extra-group paternity: alternative reproductive tactics in a cooperative mammalAndrew J Young
Department of Zoology, University of Cambridge, Downing Street, Cambridge, UK
Proc Biol Sci 274:1603-9. 2007....
Infanticide by subordinates influences reproductive sharing in cooperatively breeding meerkatsAndrew J Young
Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
Biol Lett 2:385-7. 2006..We discuss the broad implications of subordinates having a degree of control over reproductive sharing for future attempts to understand the distribution of reproduction in animal societies...
Cortisol levels are positively associated with pup-feeding rates in male meerkatsAnne A Carlson
Department of Zoology, University of Cambridge, Cambridge, UK
Proc Biol Sci 273:571-7. 2006....
Elevated prolactin levels immediately precede decisions to babysit by male meerkat helpersAnne A Carlson
Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
Horm Behav 50:94-100. 2006..Together, these results lend significant weight to the idea that decisions to help in cooperative vertebrates have a hormonal basis, although different hormones appear to be associated with different types of care...
Hormonal correlates of dominance in meerkats (Suricata suricatta)Anne A Carlson
Large Animal Research Group, Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
Horm Behav 46:141-50. 2004....
Adaptive suppression of subordinate reproduction in cooperative mammalsTim H Clutton-Brock
Large Animal Research Group, Department of Zoology, University of Cambridge, Downing Street, Cambridge, United Kingdom
Am Nat 176:664-73. 2010..We review evidence from other studies that the suppression of reproduction by subordinates varies with the likely costs of subordinate breeding to dominants...
Factors affecting the reproductive success of dominant male meerkatsGoran F Spong
Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
Mol Ecol 17:2287-99. 2008..As the time spent in the dominant position and reproductive rate while dominant explain > 80% of the total variance in reproductive success, group composition thus has major implications for male reproductive success...
Individual contributions to territory defence in a cooperative breeder: weighing up the benefits and costsRafael Mares
Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
Proc Biol Sci 279:3989-95. 2012..Our findings support the view that investment in cooperative behaviours can be attributed to benefits and costs, and highlight the additional importance of considering trade-offs in investment between cooperative behaviours...
Radioimmunoassay of prolactin for the meerkat (Suricata suricatta), a cooperatively breeding carnivoreAnne A Carlson
Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
Gen Comp Endocrinol 130:148-56. 2003..We conclude, however, that it will be important in all future studies to confine blood sampling times to 4-7 min after capture/administration of anesthesia to avoid the confounding effects of the stress response on prolactin levels...
American College of Sports Medicine position stand: prevention of cold injuries during exerciseJohn W Castellani
Med Sci Sports Exerc 38:2012-29. 2006....
Utility of circulating IGF-I as a biomarker for assessing body composition changes in men during periods of high physical activity superimposed upon energy and sleep restrictionBradley C Nindl
Military Performance Division, US Army Research Institute of Environmental Medicine, Natick, MA 01760 5007, USA
J Appl Physiol 103:340-6. 2007....
Altered secretion of growth hormone and luteinizing hormone after 84 h of sustained physical exertion superimposed on caloric and sleep restrictionBradley C Nindl
Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760, USA
J Appl Physiol 100:120-8. 2006..During periods of energy deficiency, amplitude modulation of GH and LH pulses may precede alterations in pulse numbers...
Measurement of insulin-like growth factor-I during military operational stress via a filter paper blood spot assayBradley C Nindl
Military Performance Division, U S Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760, USA
Diabetes Technol Ther 5:455-61. 2003..The filter paper blood spot method for IGF-I detected reductions accompanying nutritional stress and may be of potential value for characterizing the IGF-I response when conventional blood sampling methods are not feasible...
A comparison between Dark Agouti and Sprague-Dawley rats in their behaviour on the elevated plus-maze, open-field apparatus and activity meters, and their response to diazepamAnnis O Mechan
Department of Pharmacology, School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK
Psychopharmacology (Berl) 159:188-95. 2002....
A study of the effect of a single neurotoxic dose of 3,4-methylenedioxymethamphetamine (MDMA; "ecstasy") on the subsequent long-term behaviour of rats in the plus maze and open fieldAnnis O Mechan
Department of Pharmacology, School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK
Psychopharmacology (Berl) 159:167-75. 2002....
