Research Topics
| A StienSummaryAffiliation: Centre for Ecology and Hydrology Country: UK Publications
| Collaborators |
Detail Information
Publications
The population dynamics of Ostertagia gruehneri in reindeer: a model for the seasonal and intensity dependent variation in nematode fecundityA Stien
Centre for Ecology and Hydrology, Hill of Brathens, Banchory AB31 4BW, UK
Int J Parasitol 32:991-6. 2002..It is concluded that due to the intensity dependence in nematode fecundity, variation in reindeer population densities is likely to be the most important of these factors for pasture contamination...
Life-history strategies and population dynamics of abomasal nematodes in Svalbard reindeer (Rangifer tarandus platyrhynchus)R J Irvine
Institute of Terrestrial Ecology, Hill of Brathens, Banchory, UK
Parasitology 120:297-311. 2000..O. gruehneri may therefore play a role in the fluctuating population dynamics of the host. Since there was no apparent decline in abundance with host age in any of the 3 taxa there was no evidence of reindeer mounting an immune response...
Contrasting regulation of fecundity in two abomasal nematodes of Svalbard reindeer (Rangifer tarandus platyrhynchus)R J Irvine
Centre for Ecology and Hydrology, Banchory, UK
Parasitology 122:673-81. 2001..The contrasting patterns of density-dependent regulation of fecundity provides further evidence for divergent life-histories in this nematode community...
The role of parasites in the dynamics of a reindeer populationS D Albon
Centre for Ecology and Hydrology, Hill of Brathens, Banchory AB31 4BW, UK
Proc Biol Sci 269:1625-32. 2002..This model shows that the parasite-mediated effect on fecundity was sufficient to regulate reindeer densities around observed host densities...
Sex ratio variation in gastrointestinal nematodes of Svalbard reindeer; density dependence and implications for estimates of species compositionA Stien
Department of Biology, University of Tromsø, N 9037 Tromsø, Norway
Parasitology 130:99-107. 2005..Our results suggest that estimating sex ratios can be particularly important in individual host level studies of nematode species of low abundance...
