نتایج جستجو برای: mean of richness margalef

تعداد نتایج: 21177290  

Journal: :Egyptian Journal of Aquatic Biology and Fisheries 2022

The regular assessment of faunal diversity near the energy power plant has gained interest many researchers. activity and effluent discharged from have remarkably stressed adjacent assemblage alpha biotic community surrounding plant. Hence, this study aimed to assess fishes benthos in bordering areas Tanjung Kidurong Combined Cycle Power Plant (TKCCP), Bintulu Sarawak. investigation was conduct...

پایان نامه :0 1374

having conducted the experiment and analysed the data, the researcher computed the groups mean scores and variances for the test relating to the research question. as the final atep, a t-test was conodonted for the hypothesis. as noted earlier, the significance level was determined at .05 and .01 respectively. the observed t-value was higher than the critical t-value at. 5 and .01 levels. conse...

2017
Justus Precious Deikumah Richard Kwafo Vida Asieduwaa Konadu

The conservation of biodiversity within tropical forest regions does not lie only in the maintenance of natural forest areas, but on conservation strategies directed toward agricultural land types within which they are embedded. This study investigated variations in bird assemblages of different functional groups of forest-dependent birds in three agricultural land types, relative to distance f...

2007
Elizabeth C. Burton Matthew J. Gray

Anuran breeding call surveys are widely used to document species richness and relative abundance. Call survey protocols used by the North American Amphibian Monitoring Program are five minutes in duration. However, recent studies have suggested that 5-minute call surveys may not be long enough to accurately estimate species richness or relative abundance. Therefore, we tested whether anuran spe...

ایمانپورنمین, جاوید, بزرگی‌ماکرانی, امین, شریفی‌نیا, مسلم,

  One of the best practical methods to understand ecological status of a water body and determine impacts of human intervention in reducing water quality is using benthic macroinvertebrates as assessment tools for monitoring their biological integrity and health. The Tajan River is one of the rivers of Caspian Southernsub-basin that drains the Caspian Sea. Macroinvertebrate samples were taken u...

2007
Henri Laurie Edith Perrier

Models for species-area relationships up to now have focused on the mean richness as a function of area. We present MFp1p2, a self-similar multifractal. It explicitly models both trend and variation in richness as a function of area, and is a generalisation of the model of scaling of mean species richness due to Harte et al. (1999). The construction is based on a cascade of bisections of a rect...

Journal: :ISPRS Int. J. Geo-Information 2017
Chunyan Zhang Danlu Cai Wang Li Shan Guo Yanning Guan Xiaolin Bian Wutao Yao

Water-energy dynamics broadly regulate species richness gradients but are being altered by climate change and anthropogenic activities; however, the current methods used to quantify this phenomenon overlook the non-linear dynamics of climatic time-series data. To analyze the gradient of species richness in China using water-energy dynamics, this study used linear regression to examine how speci...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

the issue of curriculum and syllabus evaluation and revision has been in center of attention right from when curriculum came into attention of educational institutions. thus everywhere in the world in educational institutions curricula and syllabi are evaluated and revised based on the goals, the needs, existing content, etc.. in iran any curriculum is designed in a committee of specialists and...

ژورنال: کودکان استثنایی 2020
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The Relationship between Mean Length of utterance (MLU), Lexical Richness and syntactical and lexical metalinguistic Awareness in Bilingual (Turkish-Persian) normal and hearing impaired Children   Objectives: Regarding the impact of hearing loss on language development and metalinguistic skill and being language development different from metalinguistic skill in bilingual children, studying of...

2015
Jonathan D. Tonkin Deep Narayan Shah Mathias Kuemmerlen Fengqing Li Qinghua Cai Peter Haase Sonja C. Jähnig

Little work has been done on large-scale patterns of stream insect richness in China. We explored the influence of climatic and catchment-scale factors on stream insect (Ephemeroptera, Plecoptera, Trichoptera; EPT) richness across mid-latitude China. We assessed the predictive ability of climatic, catchment land cover and physical structure variables on genus richness of EPT, both individually ...

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