Host shifts are widespread among avian haemosporidians, although the success of transmission depends upon parasite?host and parasite?vector compatibility. Insular avifaunas are typically characterized by a low prevalence and diversity of haemosporidians, although the underlying ecological and evolutionary processes remain unclear. This study investigated the parasite transmission network in an insular system formed by Eleonora's falcons, louse flies that parasitize the falcons , and...

The high relevance of host–switching for the diversification of highly host–specific symbionts (i.e., those commonly inhabiting a single host species) demands a better understanding of host–switching dynamics at an ecological scale. Here, DNA metabarcoding was used to study feather mites on passerine birds in Spain, sequencing mtDNA (COI) for 25,540 individual mites (representing 64 species) from 1,130 birds (representing 71 species).

One of the major goals for ecologists and evolutionary biologists is to understand how webs of species form, how they change in participants over time, and how they affect evolution. Describing the full pattern of connections within these webs is a daunting task. This study attempted to understand how species coevolve within large webs of mutualistic species.

Although species and their interactions in unison represent biodiversity and all the ecological and evolutionary processes associated with life, biotic interactions have, contrary to species, rarely been integrated into the concepts of spatial ?-diversity. Here, ?-diversity of ecological networks is examined using pollination networks sampled across the Canary Islands.