نتایج جستجو برای: species abundance distribution
تعداد نتایج: 1161462 فیلتر نتایج به سال:
The patterns of diversity and abundance of the carrion insect species in the different habitats of the Natural Park "Hoces del Río Riaza" (central Spain) were studied with the use of carrion-baited traps. Representativeness of the inventories was assessed with the calculation of randomized species richness curves and nonparametric estimators. Coleoptera families, Silphidae and Dermestidae, and ...
to date, no comprehensive study has been carried out on the chironomid larvalidentification in running waters of the country, in particular in large rivers. therefore, this article is thefirst of its kind in iran that has come out in english. samples were collected in 9 sites from thezayandehrood river a distance of 230 km down the zayandehrood dam. the sampling was repeatedfour times: november...
انتشار و تاکسونومی خزه racomitrium crispulum از بلندی های غربی کوه های هیمالا مورد بررسی قرار گرفته است. این گونه انتشار وسیعی از نظر ارتفاع و میکروکلیما دارد. انتشار گیاه از نظر تراکم، غلبه و فراوانی میتواند به عنوان شاخص در پایش های زیستی مورد استفاده قرار گیرد. همچنین تغییرات زیست محیطی تأثیری بر انتشار گیاه ندارد و حضور آن در شرایط خشک نشان داده می شود.
benthic organisms have been studied in past to assess the health of an aquatic ecosystem. moreover, being sedentary forms they have been used as indicator organisms. in the present study, an attempt has been made to study the distribution and assemblage of major macrobenthic forms occurring in ponnani estuary. a total of 23 genera of benthic invertebrate fauna belonging to 6 groups viz., polych...
The study was conducted to assess the native and alien plant species in one of the highly disturbed forest (S1) and less disturbed forest (S2) in Mt. Manunggal, Cebu Island, Philippines. Twenty-four quadrats with a size of 20mx20 m were established using a quadrat sampling technique to identify and record all plant species. Diversity indices were utilized to determine species abundance, richnes...
Identifying relationships between fishes and their environment is an integral part of understanding coral reef ecosystems. However, this information is lacking for many species, particularly in understudied and remote regions. With coral reefs continuing to face environmental pressures, insight into abundance and distribution patterns along with resource use of fish communities will aid in adva...
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