Effects of body mass, age, dominance and parasite load on foraging time of bighorn rams, Ovis canadensis

Behavioral Ecology and Sociobiology

Volumn 56, Issue 6, 2004, Pages 546-551

  Pelletier, Fanie ^a   Festa Bianchet, Marco ^a  

^a UNIVERSITÉ DE SHERBROOKE   (Canada)

Author keywords

Bighorn sheep; Body mass; Foraging; Ovis canadensis; Time budget

Indexed keywords

AGE; BODY MASS; DOMINANCE; FORAGING BEHAVIOR; PARASITE; UNGULATE;

OVIS ARIES; OVIS CANADENSIS; UNGULATA;

EID: 6344270186     PISSN: 03405443     EISSN: None     Source Type: Journal    
DOI: 10.1007/s00265-004-0820-7     Document Type: Article

References (51)

1. Altmann J (1974) Observational study of behavior: sampling methods. Behaviour 49:227-267
2. Bassano B, von Hardenberg A, Pelletier F, Gobbi G (2003) A method to weigh free-ranging ungulates without handling. Wildl Soc Bull 31:1205-1209
3. Bell RHV (1971) A grazing ecosystem in the Serengeti. Sci Am 225:86-93
4. Bon R, Rideau C, Villaret J-C, Joachim J (2001) Segregation is not only a matter of sex in Alpine ibex, Capra ibex ibex. Anim Behav 62:495-504
5. Bonneaud C, Mazuc J, Gonzalez G, Haussy C, Chastel O, Faivre B, Sorci G (2003) Assessing the cost of mounting an immune response. Am Nat 161:367-379
6. Buchanan KL, Evans MR, Goldsmith AR, Bryant DM, Rowe LV (2001) Testosterone influences basal metabolic rate in male house sparrows: a new cost of dominance signalling? Proc R Soc Lond B 268:1337-1344
7. Clutton-Brock TH, Guinness FE, Albon SD (1982a) Red deer: behavior and ecology of two sexes. University of Chicago Press, Chicago
8. Clutton-Brock TH, Iason GR, Albon SD, Guinness FE (1982b) Effects of lactation on feeding behaviour and habitat use in wild Red deer hinds. J Zool 198:227-236
9. Conradt L (1998) Could asynchrony in activity between the sexes cause intersexual social segregation in ruminants? Proc R Soc Lond B 265:1359-1363
10. Creel S (2001) Social dominance and stress hormones. Trends Ecol Evol 16:491-497
11. Creel S, Creel NM, Monfort SL (1996) Social stress and dominance. Nature 379:212
12. Demment MW (1982) The scaling of ruminoreticulum size with body weight in East African ungulates. Afr J Ecol 20:43-47
13. Demment MW, Van Soest PJ (1985) A nutritional explanation for body-size patterns of ruminant and nonruminant herbivores. Am Nat 125:641-672
14. Dobson FS, Risch TS, Murie JO (1999) Increasing returns in the life history of Columbian ground squirrels. J Anim Ecol 68:73-86
15. Festa-Bianchet M (1991) Numbers of lungworm larvae in feces of bighorn sheep: yearly changes, influence of host sex, and effects on host survival. Can J Zool 69:547-554
16. Forrester SG, Lankester MW (1997) Extracting protostrongylid nematode larvae from ungulate feces. J Wildl Dis 33:511-516
17. Geist V (1971) Mountain sheep. University of Chicago Press, Chicago
18. Gross JE, Alkon PU, Demment MW (1996) Nutritional ecology of dimorphic herbivores: digestion and passage rates in Nubian ibex. Oecologia 107:170-178
19. Hass CC, Jenni DA (1991) Structure and ontogeny of dominance relationships among bighorn rams. Can J Zool 69:471-476
20. Hogg JT (1984) Mating in bighorn sheep: multiple creative male strategies. Science 225:526-529
21. Hogg JT (1987) Intrasexual competition and mate choice in Rocky Mountain bighorn sheep. Ethology 75:119-144
22. Hudson RJ (1985) Body size, energetics, and adaptive radiation. In: Hudson RJ, White RG (eds) Bioenergetics of wild herbivores. CRC Press, Boca Raton, Fla., pp 1-24
23. Illius WA, Gordon IJ (1987) The allometry of food intake in grazing ruminants. J Anim Ecol 56:989-999
24. Jarman PJ (1974) The social organization of antelope in relation to their ecology. Behaviour 48:215-267
25. Jenkins SH (2002) Data pooling and type I errors: a comment on Leger & Didrichsons. Anim Behav 63:F9-F11
26. Komers PE, Messier F, Gates CC (1993) Group structure in wood bison: nutritional and reproductive determinants. Can J Zool 71:1367-1371
27. Kyriazakis I, Anderson DH, Oldham JD, Coop RL, Jackson F (1996) Long-term subclinical infection with Trichostrongylus colubriformis: effects on food intake, diet selection and performance of growing lambs. Vet Parasitol 61:297-313
28. Kyriazakis I, Tolkamp BJ, Hutchings MR (1998) Towards a functional explanation for the occurence of anorexia during parasitic infections. Anim Behav 56:265-274
29. Leger DW, Didrichsons IA (1994) An assessment of data pooling and some alternatives. Anim Behav 48:823-832
30. Machlis L, Dodd PWD, Fentress JC (1985) The pooling fallacy: problems arising when individuals contribute more than one observation to the data set. Z Tierpsychol 68:201-214
31. Mysterud A (1998) The relative roles of body size and feeding type on activity time of temperate ruminants. Oecologia 113:442-446
32. Owen-Smith NR (1988) Megaherbivores. Cambridge University Press, Cambridge
33. Owen-Smith NR (1992) Grazers and browsers: ecological and social contrasts among African ruminants. In: Spitz F, Janeau G, Gonzalez G, Aulagnier S (eds) Ongulés/Ungulates 91. S.F.E.P.M.-I.R.G.M, Paris, Toulouse, pp 175-181
34. Owen-Smith NR (1998) How high ambient temperature affects the daily activity and foraging time of a subtropical ungulate, the greater kudu (Tragelaphus strepsiceros). J Zool 246:183-192
35. Pelletier F, Bauman J, Festa-Bianchet M (2003) Fecal testosterone in bighorn sheep (Ovis canadensis): behavioural and endocrine correlates. Can J Zool 81:1678-1684
36. Pérez-Barberia FJ, Gordon IJ (1999) The relative roles of phylogeny, body size and feeding style on the activity time of temperate ruminants: a reanalysis. Oecologia 120:193-197
37. Pettorelli N, Gaillard JM, Van Laere G, Duncan P, Kjellander P, Liberg O, Delorme D, Maillard D (2002) Variations in adult body mass in roe deer: the effects of population density at birth and of habitat quality. Proc R Soc Lond B 269:747-753
38. Roberts G (1996) Why individual vigilance declines as group size increases? Anim Behav 51:1077-1086
39. Ruckstuhl KE (1998) Foraging behaviour and sexual segregation in bighorn sheep. Anim Behav 56:99-106
40. Ruckstuhl KE (1999) To synchronise or not to synchronise: a dilemma for young bighorn males? Behaviour 136:805-818
41. Ruckstuhl KE, Festa-Bianchet M (2001) Group choice by subadult bighorn rams: trade-offs between foraging efficiency and predator avoidance. Ethology 107:161-172
42. Ruckstuhl KE, Kokko H (2002) Modelling sexual segregation in ungulates: effects of group size, activity budgets and synchrony. Anim Behav 64:909-914
43. Ruckstuhl KE, Neuhaus P (2002) Sexual segregation in ungulates: a comparative test of three hypotheses. Biol Rev 77:77-96
44. Ruckstuhl KE, Festa-Bianchet M, Jorgenson J (2003) Bites rates in Rocky Mountain bighorn sheep (Ovis canadensis): effects of season, age, sex and reproductive status. Behav Ecol Sociobiol 54:167-173
45. Sayre RW, Seabloom RW (1994) Summer activity patterns of bighorn ewes in the Northern Great Plains. In: Biennial Symposium of the Northern Wild Sheep and Goat Council, Cranbrook, B.C., vol 8, pp 104-109
46. Sokal RR, Rohlf FJ (1981) Biometry, 2nd edn. Freeman, San Francisco
47. Steele BM, Hogg JT (2003) Measuring individual quality in conservation and behavior. In: Festa-Bianchet M, Apollonio M (eds) Animal behavior and wildlife conservation. Island Press, Washington, pp 243-269
48. Sutherland I (2003) Fecal mass and parasite strategies. Trends Parasitol 19:68
49. Vries H de (1995) An improved test of linearity in dominance hierarchies containing unknown or tied relationships. Anim Behav 50:1375-1389
50. Vries H de (1998) Finding a dominance order most consistent with a linear hierarchy: a new procedure and review. Anim Behav 55:827-843
51. Vries H de, Netto WJ, Hanegraaf PLH (1993) Matman: a program for the analysis of sociometric matrices and behavioural transition matrices. Behaviour 125:157-175