Response of foraging sheep to variability in the spatial distribution of resources

Aufrère, 1983, In vivo digestibility and prediction of digestibility of some by-products, 25 Bailey, 1989, Characteristics of spatial memory in cattle, Applied Animal Behaviour Science, 23, 331, 10.1016/0168-1591(89)90101-9 Bailey, 1989, Association of relative food availabilities and locations by cattle, Journal of Range Management, 42, 480, 10.2307/3899232 Bateson, 1998, Risk-sensitive foraging: decision making in variable environments, 297 Beauchamp, 1997, Influence of conspecific attraction on the spatial distribution of learning foragers in a patchy environment, Journal of Animal Ecology, 66, 671, 10.2307/5920 Bednekoff, 1997, Clark's nutcracker spatial memory: many errors might not be due to forgetting, Animal Behaviour, 54, 691, 10.1006/anbe.1997.0473 Charnov, 1976, Optimal foraging, the marginal value theorem, Theoretical Population Biology, 9, 129, 10.1016/0040-5809(76)90040-X Dall, 1997, Searching in patches by European starlings, Sturnus vulgaris, Behavioural Processes, 39, 149, 10.1016/S0376-6357(96)00053-8 Dumont, 2000, Grazing behaviour of sheep in a situation of conflict between feeding and social motivations, Behavioural Processes, 49, 131, 10.1016/S0376-6357(00)00082-6 Dumont, 2001, Multi-agent simulation of group foraging in sheep: effects of spatial memory, conspecific attraction and plot size, Ecological Modelling, 141, 201, 10.1016/S0304-3800(01)00274-5 Dumont, 1995, An indoor method for studying the preferences of sheep and cattle at pasture, Applied Animal Behaviour Science, 46, 67, 10.1016/0168-1591(96)81085-9 Dumont, 1998, Spatial memory of sheep at pasture, Applied Animal Behaviour Science, 60, 43, 10.1016/S0168-1591(98)00152-X Edwards, 1996, The use of spatial memory by grazing animals to locate food patches in spatially heterogeneous environments: an example with sheep, Applied Animal Behaviour Science, 50, 147, 10.1016/0168-1591(96)01077-5 Genstat, 1998 Gillingham, 1989, Effects of learning on food selection and searching behaviour of deer, Canadian Journal of Zoology, 67, 24, 10.1139/z89-005 Goering, 1970 Hewitson, L. 2002. The response of foraging sheep to environmental uncertainty. Ph.D. thesis, University of Edinburgh. Hobbs, 1999, Response of large herbivores to spatial heterogeneity in ecosystems, 97 Hosoi, 1995, Foraging strategies of cattle in a Y-maze: influence of food availability, Applied Animal Behaviour Science, 43, 189, 10.1016/0168-1591(95)00565-A Hosoi, 1995, Comparative foraging strategies of sheep and goats in a T-maze apparatus, Applied Animal Behaviour Science, 44, 37, 10.1016/0168-1591(95)00572-A Illius, 1990, Constraints on diet selection and foraging behaviour in mammalian herbivores, 369 Inglis, 2001, An information primacy model of exploratory and foraging behaviour, Animal Behaviour, 62, 543, 10.1006/anbe.2001.1780 Kagel, 1986, When foragers discount the future. Constraint or adaptation?, Animal Behaviour, 34, 271, 10.1016/0003-3472(86)90032-1 Kohlmann, 1998, Effects of resource distribution, patch spacing and preharvest information on foraging decisions of northern bobwhites, Behavioral Ecology, 9, 177, 10.1093/beheco/9.2.177 Laca, 1998, Spatial memory and food searching mechanisms of cattle, Journal of Range Management, 51, 370, 10.2307/4003320 Laca, 1995, Integrating foraging mechanisms across spatial and temporal scales, 129 Lawrence, 1988, Influence of social behaviour on utilization of supplemental feed-blocks by Scottish hill sheep, Animal Production, 46, 203, 10.1017/S0003356100042252 Patterson, 1971, Recovery of interblock information when block sizes are unequal, Biometrika, 58, 545, 10.1093/biomet/58.3.545 Rule, 1985, Feeding stations of sheep as an indicator of diminished forage supply, Journal of Animal Science, 61, 349, 10.2527/jas1985.612349x Scott, 1995, Dietary habits and social interactions affect choice of feeding location by sheep, Applied Animal Behaviour Science, 45, 225, 10.1016/0168-1591(95)00605-R Senft, 1987, Large herbivore foraging and ecological hierarchies, Bioscience, 37, 789, 10.2307/1310545 Sibbald, 2003, Trade-offs between social behaviour and foraging by sheep in heterogeneous pastures, Behavioural Processes, 61, 1, 10.1016/S0376-6357(02)00160-2 Snedecor, 1980 Stephens, 1986 Wallis de Vries, 1999, The importance of scale of patchiness for selectivity in grazing herbivores, Oecologia, 121, 355, 10.1007/s004420050939 Westoby, 1978, What are the biological bases of varied diets?, American Naturalist, 112, 627, 10.1086/283303