Age class, density and temporal effects on diet composition of sheep in an alpine ecosystem

Basic and Applied Ecology

Volumn 13, Issue 5, 2012, Pages 466-474

  Mobæk, Ragnhild ^a   Mysterud, Atle ^b   Holand, Øystein ^a   Austrheim, Gunnar ^c  

^a NORWEGIAN UNIVERSITY OF LIFE SCIENCES   (Norway)

^b UNIVERSITY OF OSLO   (Norway)

^c NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY   (Norway)

Author keywords

Climate effects; Density dependence; Foraging; Large mammals; Life history; Seasonality; Sheep

Indexed keywords

DESCHAMPSIA FLEXUOSA FLEXUOSA; MAMMALIA; OVIS ARIES; SALIX; UNGULATA;

EID: 84867140277     PISSN: 14391791     EISSN: 16180089     Source Type: Journal    
DOI: 10.1016/j.baae.2012.06.009     Document Type: Article

References (41)

1. Austrheim G., Evju M., Mysterud A. Herb abundance and life history traits in two contrasting alpine habitats in southern Norway. Plant Ecology 2005, 179:217-229.
2. Austrheim G., Mysterud A., Pedersen B., Halvorsen R., Hassel K., Evju M. Large scale experimental effects of three levels of sheep densities on an alpine ecosystem. Oikos 2008, 117:837-846.
3. Bailey D.W., Gross J.E., Laca E.A., Rittenhouse L.R., Coughenour M.B., Swift D.M., et al. Mechanisms that result in large herbivore grazing distribution patterns. Journal of Range Management 1996, 49:386-400.
4. Bonenfant C., Gaillard J.-M., Coulson T., Festa-Bianchet M., Loison A., Garel M., et al. Empirical evidence of density-dependence in populations of large herbivores. Advances in Ecological Research 2009, 41:313-358.
5. Bowns J.E., Bagley C.F. Vegetation responses to long-term sheep grazing on mountain ranges. Journal of Range Management 1986, 39:431-434.
6. Coulson T., Catchpole E.A., Albon S.D., Morgan B.J.T., Pemberton J.M., Clutton-Brock T.H., et al. Age, sex, density, winter weather, and population crashes in Soay sheep. Science 2001, 292:1528-1531.
7. Daigle C., Crête M., Lesage L., Ouellet J.-P., Huot J. Summer diet of two white-tailed deer, Odocoileus virginianus, populations living at low and high density in southern Québec. Canadian Field-Naturalist 2004, 118:360-367.
8. Demment M.W., Van Soest P.J. A nutritional explanation for body-size patterns of ruminant and nonruminant herbivores. American Naturalist 1985, 125:641-672.
9. Evju M., Austrheim G., Halvorsen R., Mysterud A. Grazing responses in herbs in relation to herbivore selectivity and plant traits in an alpine ecosystem. Oecologia 2009, 161:77-85.
10. Evju M., Mysterud A., Austrheim G., Økland R.H. Selecting herb species and traits as indicators of sheep grazing pressure in a Norwegian alpine habitat. Ecoscience 2006, 13:459-468.
11. Festa-Bianchet M., Jorgenson J.T. Selfish mothers: Reproductive expenditure and resource availability in bighorn ewes. Behavioral Ecology 1998, 9:144-150.
12. Fowler C.W. A review of density dependence in populations of large mammals. Current mammalogy 1987, 401-441. Plenum Press, New York/London. H.H. Genoways (Ed.).
13. Freeland W.J., Choquenot D. Determinants of herbivore carrying capacity: Plants, nutrients, and Equus asinus in northern Australia. Ecology 1990, 71:589-597.
14. Gaillard J.-M., Festa-Bianchet M., Yoccoz N.G. Population dynamics of large herbivores: Variable recruitment with constant adult survival. Trends in Ecology and Evolution 1998, 13:58-63.
15. Gaillard J.-M., Festa-Bianchet M., Yoccoz N.G., Loison A., Toigo C. Temporal variation in fitness components and population dynamics of large herbivores. Annual Review of Ecology and Systematics 2000, 31:367-393.
16. Gaillard J.-M., Yoccoz N.G. Temporal variation in survival of mammals: A case of environmental canalization?. Ecology 2003, 84:3294-3306.
17. Hebblewhite M., Merrill E., McDermid G. A multi-scale test of the forage maturation hypothesis in a partially migratory ungulate population. Ecological Monographs 2008, 78:141-166.
18. Holechek J.L., Vavra M., Pieper R.D. Botanical composition determination of range herbivore diets: A review. Journal of Range Management 1982, 35:309-315.
19. Jongman R.H.G., Braak C.J.F., van Tongeren O.F.R. Data analysis in community and landscape ecology 1995, Cambridge University Press, Cambridge, UK.
20. Kausrud K., Mysterud A., Rekdal Y., Holand Ø., Austrheim G. Density-dependent foraging behaviour of sheep on alpine pastures: Effects of scale. Journal of Zoology 2006, 270:63-71.
21. Langvatn R., Mysterud A., Stenseth N.C., Yoccoz N.G. Timing and synchrony of ovulation in red deer constrained by short northern summers. American Naturalist 2004, 163:763-772.
22. Leps J., Smilauer P. Multivariate analysis of ecological data using CANOCO 2003, Cambridge University Press, Cambridge.
23. Loe L.E., Bonenfant C., Mysterud A., Gaillard J.-M., Langvatn R., Stenseth N.C., et al. Climate predictability and breeding phenology in red deer: Timing and synchrony of rutting and calving in Norway and France. Journal of Animal Ecology 2005, 74:579-588.
24. Mårell A., Hofgaard A., Danell K. Nutrient dynamics of reindeer forage species along snowmelt gradients at different ecological scales. Basic and Applied Ecology 2006, 7:13-30.
25. Martin J.G.A., Festa-Bianchet M. Bighorn ewes transfer the costs of reproduction to their lambs. American Naturalist 2010, 176:414-423.
26. McLoughlin P.D., Morris D.W., Fortin D., Vander Wal E., Contasti A.L. Considering ecological dynamics in resource selection functions. Journal of Animal Ecology 2010, 79:4-12.
27. Mobæk, R., Mysterud, A., Holand, Ø., & Austrheim, G. Temporal variation in density dependent growth of a large herbivore. Oikos, in press.
28. Mobæk R., Mysterud A., Loe L.E., Holand Ø., Austrheim G. Density dependent and temporal variability in habitat selection by a large herbivore: An experimental approach. Oikos 2009, 118:209-218.
29. Morris D.W. Toward an ecological synthesis: A case for habitat selection. Oecologia 2003, 136:1-13.
30. Mysterud A., Hessen D.O., Mobæk R., Martinsen V., Mulder J., Austrheim G. Plant quality, seasonality and sheep grazing in a northern alpine ecosystem. Basic and Applied Ecology 2011, 12:195-206.
31. Mysterud A., Stenseth N.C., Yoccoz N.G., Ottersen G., Langvatn R. The response of the terrestrial ecosystems to climate variability associated with the North Atlantic Oscillation. The North Atlantic Oscillation 2003, 235-262. American Geophysical Union, Washington. J.W. Hurrell, Y. Kushnir, G. Ottersen, M. Visbeck (Eds.).
32. Nicholson M.C., Bowyer R.T., Kie J.G. Forage selection by mule deer: Does niche breadth increase with population density?. Journal of Zoology 2006, 269:39-49.
33. Pettorelli N., Mysterud A., Yoccoz N.G., Langvatn R., Stenseth N.C. Importance of climatological downscaling and plant phenology for red deer in heterogeneous landscapes. Proceedings of the Royal Society of London, Series B 2005, 272:2357-2364.
34. Pinheiro J.C., Bates D.M. Mixed effects models in S and S-PLUS 2000, Springer, New York.
35. Ramp D., Coulson G. Density dependence in foraging habitat preference of eastern grey kangaroos. Oikos 2002, 98:393-402.
36. Senft R.L., Coughenour M.B., Bailey D.W., Rittenhouse L.R., Sala O.E., Swift D.M. Large herbivore foraging and ecological hierarchies. BioScience 1987, 37:789-799.
37. Simard M.A., Côté S.D., Weladji R.B., Huot J. Feedback effects of chronic browsing on life-history traits of a large herbivore. Journal of Animal Ecology 2008, 77:678-686.
38. Ter Braak C.J.F., Prentice I.C. A theory of gradient analysis. Advances in Ecological Research 1988, 18:271-317.
39. Ter Braak C.J.F., Smilauer P. CANOCO reference manual and CanoDraw for Windows user's guide: Software for canonical community ordination (version 4.5) 2002, Microcomputer Power, Ithaca, NY.
40. Weladji R.B., Klein D.R., Holand Ø., Mysterud A. Comparative response of Rangifer tarandus and other northern ungulates to climatic variability. Rangifer 2002, 22:33-50.
41. White R.G. Foraging patterns and their multiplier effects on productivity of northern ungulates. Oikos 1983, 40:377-384.