The concept of ecosystem health is derived from analogies with human health, which
subsequently leads to the implication that the ecosystem has organismal properties …

Parasites have evolved independently in numerous animal lineages, and they now make up
a considerable proportion of the biodiversity of life. Not only do they impact humans and …

Individual heterogeneity can influence the dynamics of infectious diseases in wildlife and
humans alike. Thus, recent work has sought to identify behavioural characteristics that …

The population trophic niche of free-living species can be subdivided into smaller niches
comprising individuals specialising on specific food items. The roles of parasites in creating …

Aggregated distributions among individual hosts are a defining feature of metazoan parasite
populations. Heterogeneity among host individuals in exposure to parasites or in …

Heterogeneous exposure to parasites may contribute to host species differentiation. Hosts
often harbour multiple parasite species which may interact and thus modify each other's …

Central to the study of animal ecology is the usage an animal makes of its environment
(Johnson 1980). Animal populations need adequate quantities of usable resources to …

Two reproductive isolated morphs of Arctic charr (Salvelinus alpinus), termed profundal and
littoral charr according to their different spawning habitats, co-occur in the postglacial lake …

Inter‐individual differences in trophic behaviour are considered important in the disruptive
selection process for resource specialization and may represent an early phase in the …

Parasite infection patterns were compared with the occurrence of their intermediate hosts in
the diet of nine sympatric fish species in a New Zealand lake. Stomach contents and …