The mighty mite
نویسنده
چکیده
storehouses of terrestrial biodiversity, but many of the more astounding species are apparent only after the closest scrutiny. Here are a few of the roughly 2000 species of mite (Arachnida: Acari) that can be found in the subtropical rainforests of Lamington National Park in southeast Queensland, Australia. The mites there range in size from 0.182 millimetres to 7 millimetres, with the minute brachychthoniid oribatid mite at top left at the smaller end of the scale. This mite inhabits forest soil and hanging humus. The mite at bottom right (Scapheremaeus sp.) is also an oribatid mite but inhabits the forest canopy. Unlike those living in soil, which are usually blind, this arboreal species has a cyclopean eye-spot, or lenticulus — the silver dome on its back. Another oribatid mite, that at bottom left (Cosmochthonius sp.) has erectile defensive setae; related fossil mites are known from the Devonian period. (Oribatid mites are commonly known as 'beetle', or 'moss' mites.) Saltiseius hunteri (centre) is a leaping predator mite and the only known member of its family. Mites are unusual in that many species do not include males; one such parthenogenetic species is the common and widely distributed Terpnacarus gibbosus (top right). These pseudocoloured scanning electon micrographs were provided by David Walter from the
منابع مشابه
A side-by-side comparison of sampling methods for settled, indoor allergens.
Exposure to indoor allergens is associated with asthma, but there is no standardized sampling method for measuring allergens. We compared the association of measured allergen exposure and serum-specific IgE levels and the precision of three sampling methods (Cyclone, Mighty Mite, and Readivac II) to identify a standardized sampling method for indoor allergens. A random sample of 72 children, 5 ...
متن کاملStudy on mange mite of camel in Raya-Azebo district, northern Ethiopia
A cross-sectional study was carried out to determine the prevalence and species of camel mange mite infestation in Raya-Azebo district, Northern part of Ethiopia. Accordingly, Three hundred and eighty-four camels were examined and mange mite infestation was detected on 64 of camels. Only Sarcoptes scabiei var. cameli was identified as the only mite species in all skin...
متن کاملHistopathological study of the mite biting (Dermanyssus gallinae) in poultry skin
The red mite of poultry, Dremanyssus gallinae, is the most important hematophagous ectoparasite of poultry. In this study, pathologic changes of its biting on the poultry skin have been investigated. Thirty-two (Control = 16 and Treatment = 16) four weeks old Ross broilers (308) were infested with the mite on skin of hock joins. Samples were collected after 1, 24, 72 hours and 10 days. The skin...
متن کاملبررسی شیوع بیماری گال و عوامل موثر در ابتلاء به آن در دانش آموزان مدارس ابتدایی شهر ساری در سال 79-1378
Background and purpose: Since mite contamination is one of main skin infections and is also known as, one of the indicators, in measuring the level of hygiene in a society, a study was contucted in order to study the presence of mite in the primary school students of sari city. Materials and methods: Âfter necessary coordination with the education and training office, from total number of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Current Biology
دوره 10 شماره
صفحات -
تاریخ انتشار 2000