four tylenchid species, namely, aglenchus agricola, malenchus exiguus, psilenchus curcumerus, and p. terextremus are reported from iran. the iranian population of a. agricola is characterized by 542-659 µm long body, 10-12 µm long stylet, excretory pore at 70-87 µm distance from anterior end, prominent lateral fields, with four lines, tail of 170-198 long, and rare males with 15-20 µm long spic...

six belonolaim species were collected from grasslands of sabalan region. the found species belong to genera amplimerlinius, merlinius, nagelus, neodolichorhynchus, paramerlinius and tylenchorhynchus. among the found species, neodolichorhynchus judithae is reported for the first time from iran and is characterized byhaving offset head, cuticule with 16 longitudinal ridges, delicate stylet 21-23 ...

two species of pratylenchoides recovered from the grasslands in sabalan region and one species recovered from natural habitats of tehran are illustrated based on morphological, morphometric and molecular characters. the first species, p. crenicauda is characterized mainly by its lip region with three-four annuli, lateral field with four incisures areolated throughout the length and having rod s...

The new genus Pedoniphis gen. nov. (Acari: Mesostigmata: Eviphididae) is described from soil detritus in Sabalan Mountains, northwest Iran, with P. persicus sp. nov. as type species. Among known eviphidid genera, the new genus is the most similar to Scamaphis Karg and Scarabacariphis Mašán and it can be distinguished especially by the dorsal chaetotaxy (setae J2 absent, setae J5 rudimentary) an...

Program comprehension is a necessary step for performing many software engineering tasks. Dynamic analysis is effective in producing execution traces that assist comprehension. Traces are rich sources of information regarding the behaviour of a program. However, it is challenging to gain insight from traces due to their overwhelming amount of data and complexity. We propose a generic technique ...

Features provide a comprehensive global overview of extent and diversity of grasslands. Analyzes how humans shaped grasslands through millennia of use and which role they play in present-day agriculture. Quantifies the role of grasslands as biodiversity hotspots as well as the drivers threatening these. Evaluates the ecosystem services grasslands provide e.g. in terms of soil protection and car...

in order to study on adaptability and grain yield stability of eight bread wheat cultivars (alvand, alamout, zarrin, navid, azar 2, sabalan, omid and bezostiya), a rcbd experiment was conducted during three cropping seasons (2007-2010) at six locations (sanandaj, gorveh, marivan, divandarreh, saggez and baneh). simple analysis of variance (anova) and combined anova for three years in each locat...

• Grasslands are one of Earth’s major biomes and the native vegetation of up to 40 % of Earth’s terrestrial surface. Grasslands occur on every continent except Antarctica, are ecologically and economically important, and provide critical ecosystem goods and services at local, regional, and global scales. • Grasslands are surprisingly diverse and difficult to define. Although grasses and other g...

In the Great Plains, grassland carbon dynamics differ across broad gradients of precipitation and temperature, yet finer-scale variation in these variables may also affect grassland processes. Despite the importance of grasslands, there is little information on how fine-scale relationships compare between them regionally. We compared grassland C exchanges, energy partitioning and precipitation ...