Se reportan nuevos registros y ampliaciones en el área de distribución Harpagus bidentatus, Glaucidium sanchezi, Attila spadiceus, Cyanolyca nana, Oreoscoptes montanus Peucedramus taeniatus. Estas seis especies aves fueron registradas bosque mesófilo montaña del estado Hidalgo, México. Dos estas (G. sanchezi C. nana) son restringida, lo que eleva a tres número restringida la zona. Esto enfatiza...

Of 100 asthmatic patients prick tested for allergy to Dermatophagoides pteronyssinus, 88% were positive compared with only 14% of controls. A significantly greater proportion of dust samples from the houses of the asthmatics contained Dermatophagoides mites. The house-dust mite D. pteronyssinus, constituted 90% of the mites identified, other pyroglyphid mites, Cheyletus and Glycophagus making u...

Molluscs, both gastropods and bivalves, appear to disproportionately influence the dynamics of salt marsh habitats. Bivalves typically are facilitators positively affecting the growth and survival of marshes, but gastropods may have unanticipated top-down effects through direct consumption of the predominant marsh vegetation, Spartina alterniflora. Natural, elevational differences in S. alterni...

to identify the mite species associated with food products in mashhad, a variety of stored food products were visited and sampled during years 2011 and 2012. storage mites were extracted by means of berlese-tullgreen funnel. mite specimens were cleared using lactic acid or nesbit’s fluid. using hoyer’s medium, cleared specimens were mounted as permanent microscopic slides. specimens were identi...