Effect of Habitat Size, Quality, and Isolation on Functional Groups of Beetles in Hollow Oaks.

One of the largest threats to biodiversity is land use change and habitat loss. Hollow oaks (Quercus spp. L.

The bird ectoparasite Dermanyssus hirundinis (Acari, Mesostigmata) in the High Arctic; a new parasitic mite to Spitsbergen, Svalbard.

Ectoparasites are common on birds and in their nests. Amongst these parasites are diverse gamasid mite species that can lead to irritation, disease transmission and blood loss. Few studies of the ectoparasites of birds breeding in the High Arctic exist.