Aim The large‐scale description of ecosystem complexity, including the structure of interaction networks, has been largely overlooked although it is known to underpin species co‐occurrences and their robustness to climatic or anthropogenic disturbances. Here, we investigated whether the various components of mammal–flea interaction networks (richness of fleas, richness of mammals and the richness of mammal–flea associations) a...

Aim We investigated how the spatial distribution of parasites, measured as either their geographical range size or their frequency of occurrence among localities, relates to either their average local abundance or the variance in their abundance among localities where they occur. Location We used data on the abundance of 46 metazoan parasite species in 66 populations of threespine sticklebacks, Gasterosteus aculeatus , from Eu...

Translocation, introduction, reintroduction, and assisted migrations are species conservation strategies that are attracting increasing attention, especially in the face of climate change. However, preventing the extinction of the suite of dependent species whose host species are threatened is seldom considered, and the effects on dependent species of moving threatened hosts are unclear. There is no published guidance on how t...