نتایج جستجو برای: key species
تعداد نتایج: 1067274 فیلتر نتایج به سال:
Aim The global vertical depth distribution of seagrass species remains poorly understood. Locally, the abundance and seagrasses is determined by light penetration, but at levels each has very distinct maximum distributional ranges, indicating that plant-associated traits must also influence their specific ranges. Seagrass-specific attributes, such as plant size or architecture, growth reproduct...
a survey was conducted to study the fauna of the subfamily ophioninae (hymenoptera: ichneumonidae) in southern iranian provinces of fars and hormozgan. the specimens were collected using malaise traps, light traps and sweep nets from a variety different habitats between 2011 and 2013. a total of twelve species of three genera (enicospilus stephens; ophion fabricius and eremotylus forster) were ...
the genus exoprosopa macqurt, 1840 (diptera: bombyliidae: anthracinae) was studied in the north central iran. four species of the genus exoprosopa were identified of which e. minos (meigen,1804) and e. grandis (pallas, 1818) were previously recorded from northern parts of iran ( or north of iran ) and two species namely e. efflatounbeyi paramonov, 1928and e. altaica paramonov, 1925 are newly re...
In the present study, nine species of Aspergillus, viz., A. alliaceus, A. ochraceus, A. persii, A. leproris, A. parasiticus, A. fumigatiaffinis, A. sydowii, A. niger, A. tubingensis and Eurotium amstelodami were obtained and identified from soils of the National Park of Urmia Lake, based on cultural and morphological characteristics. All of the species are newly recorded from hypersaline soils ...
The preliminary result of a survey conducted on Xylaria species in the North of Iran is presented. Based on morphological examination of fungal specimens collected from Guilan, Mazandaran and Golestan provinces, eight species including Xylaria arbuscula, X. cubensis, X. filiformis, X. hypoxylon, X. longipes, X. multiplex, X. pannosa, and X. polymorpha were identified. Among the identified speci...
چکیده به منظور بررسی اثر تنوع گیاهی و نوع منبع تغذیه ای بر تنوع و تراکم علفهای هرز و حشرات، کارایی مصرف نهاده ها ( نور، آب، عناصر غذایی) و عملکرد و خصوصیات کیفی چند گونه زراعی، آزمایشی به صورت کرتهای خردشده بر پایه طرح بلوکهای کامل تصادفی با سه تکرار در دو سال زراعی 1385-1384 و 1386-1385 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه فردوسی مشهد به اجرا درآمد. تیمارهای مورد بررسی دو منبع کود دامی و...
Thirteen species in five genera of the Libellulidae family were collected in a survey of dragonflies (Odonata) of Shiraz and its vicinity, involving 19 locations, The presented records of the libellulid dragonflies taken from the Fars province comprise a first time collection of two genera, Sympetrum and Pantala, and seven species, Orthetrum anceps Schnider, Orthetrum taeniolatum Schneider, Ort...
Section Gamosepalum has been reported from Turkey for the first time by Dudley. In recent years, several species of this section were reported as new records for Iran. Four species of Alyssum section are tranfered from sect. Alyssum to sect. Gamosepalum with considering of important characters in each section. These changes made two synonymies. Five species of Gamosepalum section including A. l...
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