The optimum search speed of terrestrial predators when feeding on sedentary pey: a predictive modelSPEAKMAN, J. R.Journal of theoretical biology. 1986, Vol 122, Num 4, pp 401-407, issn 0022-5193Article

The evolution of flight and echolocation in pre-bats: an evaluation of the energetics of reach huntingSPEAKMAN, J. R.Acta chiropterologica. 1999, Vol 1, Num 1, pp 3-15, issn 1508-1109Article

Evolution of animal body size : a cautionary note on assessments of the role of energeticsSPEAKMAN, J. R.Functional ecology (Print). 1992, Vol 6, Num 4, pp 495-496, issn 0269-8463Article

On Blum's four-dimensional geometric explanation for the 0•75 exponent in metabolic allometrySPEAKMAN, J. R.Journal of theoretical biology. 1990, Vol 144, Num 1, pp 139-141, issn 0022-5193, 3 p.Article

Flight capabilities in ArchaeopteryxSPEAKMAN, J. R.Evolution. 1993, Vol 47, Num 1, pp 336-340, issn 0014-3820Article

Why do insectivorous bats in Britain not fly in daylight more frequently?SPEAKMAN, J. R.Functional ecology (Print). 1991, Vol 5, Num 4, pp 518-524, issn 0269-8463Article

Apparent absorption efficiencies for redshank (Tringa totanus L.) and oystercatcher (Haematopus ostralegus L.): implications for the predictions of optimal foraging modelsSPEAKMAN, J. R.The American naturalist. 1987, Vol 130, Num 5, pp 677-691, issn 0003-0147Article

Thrifty genes for obesity, an attractive but flawed idea, and an alternative perspective : the 'drifty gene' hypothesisSPEAKMAN, J. R.International journal of obesity. 2008, Vol 32, Num 11, pp 1611-1617, issn 0307-0565, 7 p.Article

How should we calculate CO₂ production in doubly labelled water studies of animals?SPEAKMAN, J. R.Functional ecology (Print). 1993, Vol 7, Num 6, pp 746-750, issn 0269-8463Article

Position of the pinnae and thermoregulatory status in brown long-cared bats (Plecotus auritus)SPEAKMAN, J. R.Journal of thermal biology. 1988, Vol 13, Num 1, pp 25-29, issn 0306-4565Article

The function of flight formations in Greylag Geese Anser anser; energy saving or orientation?SPEAKMAN, J. R; BANKS, D.Ibis (London. 1859). 1998, Vol 140, Num 2, pp 280-287, issn 0019-1019Article

Validation of dual energy X-ray absorptiometry (DXA) by comparison with chemical analysis of dogs and catsSPEAKMAN, J. R; BOOLES, D; BUTTERWICK, R et al.International journal of obesity. 2001, Vol 25, Num 3, pp 439-447, issn 0307-0565Article

Effect of high-fat diet on body mass and energy balance in the bank volePEACOCK, W. L; SPEAKMAN, J. R.Physiology & behavior. 2001, Vol 74, Num 1-2, pp 65-70, issn 0031-9384Article

Ranging behaviour and time budgets of male wood mice Apodemus sylvaticus in different habitats and seasonsCORP, N; GORMAN, M. L; SPEAKMAN, J. R et al.Oecologia. 1997, Vol 109, Num 2, pp 242-250, issn 0029-8549Article

Reproductive investment and optimum clutch size of loggerhead sea turtles (Caretta caretta)HAYS, G. C; SPEAKMAN, J. R.Journal of animal ecology. 1991, Vol 60, Num 2, pp 455-462, issn 0021-8790Article

The energetic consequences of parasitism : effects of a developing infection of Trichostrongylus tenuis (Nematoda) on red grouse (Lagopus lagopus scoticus) energy balance, body weight and conditionDELAHAY, R. J; SPEAKMAN, J. R; MOSS, R et al.Parasitology (London. Print). 1995, Vol 110, Num 4, pp 473-482, issn 0031-1820Article

No cost of echolocation for bats in flightSPEAKMAN, J. R; RACEY, P. A.Nature (London). 1991, Vol 350, Num 6317, pp 421-423, issn 0028-0836, 3 p.Article

The equilibrium concentration of oxygen-18 in body water: implications for the accuracy of the doubly-labelled water technique and a potential new method of measuring RQ in free-living animalsSPEAKMAN, J. R; RACEY, P. A.Journal of theoretical biology. 1987, Vol 127, Num 1, pp 79-95, issn 0022-5193Article

Measurement of CO₂ production by the doubly labeled water techniqueSPEAKMAN, J. R; RACEY, P. A.Journal of applied physiology (1985). 1986, Vol 61, Num 3, pp 1200-1202, issn 8750-7587Article

Energy budgets of lactating and non-reproductive Brown Long-Eared Bats (Plecotus auritus) suggest females use compensation in lactationMCLEAN, J. A; SPEAKMAN, J. R.Functional ecology (Print). 1999, Vol 13, Num 3, pp 360-372, issn 0269-8463Article

Long photophase is not a sufficient stimulus to reduce thermogenic capacity in winter-acclimatized short-tailed field voles (Microtus agrestis) during long-term cold acclimationMCDEVITT, R. M; SPEAKMAN, J. R.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology. 1994, Vol 164, Num 2, pp 159-164, issn 0174-1578Article

Nest placement by loggerhead turtles, Caretta carettaHAYS, G. C; SPEAKMAN, J. R.Animal behaviour. 1993, Vol 45, pp 47-53, issn 0003-3472, 1Article

Albedo and transmittance of short-wave radiation for bat wingsSPEAKMAN, J. R; HAYS, G. C.Journal of thermal biology. 1992, Vol 17, Num 6, pp 317-321, issn 0306-4565Article

Doubly labelled water: errors in the evaluation of oxygen isotope turnover due to temporal variation in CO₂ production do not always covary with dilution space estimateSPEAKMAN, J. R; RACEY, P. A.Journal of theoretical biology. 1989, Vol 141, Num 4, pp 547-556, issn 0022-5193Article

Measuring natural abundance of ¹³C in respired CO₂: variability and implications for non-invasive dietary analysisPERKINS, S. E; SPEAKMAN, J. R.Functional ecology (Print). 2001, Vol 15, Num 6, pp 791-797, issn 0269-8463Article