نتایج جستجو برای: stream biodiversity
تعداد نتایج: 94271 فیلتر نتایج به سال:
Tajikistan is a hotspot of plant and animal species diversity and endemism andis important for the conservation of biodiversity on a global scale. The country is located ata biological crossroads. Species from Central and Northern Europe, Central Asia, theMiddle East, and North Africa mingle here with endemics found nowhere else. Therichness of Tajikistan‘s biodiversity shows up at the genetic,...
evaluation diversity of agricultural plants and effectiveness of management factors in non-hunting of gharaviz abstract biodiversity is the basis of agriculture. sustainable agriculture both promotes and is enhanced by biodiversity. during present study, agrobiodiversity and management factors were investigated in three villages of gharaviz area and four villages in surroundings area, in sarpol...
The objective of the present study was to determine the effects of fish aggregation device (FAD) deployment on biodiversity, catch composition and length frequency distribution in the Qeshm Island handline fishery. Two FADs were deployed in the Qeshm Island. Four biodiversity indices including Margalef, Shannon-Weaver, Simpson and Pielou and also catch composition and length frequency distribut...
Luz Boyero1,2*, Richard G. Pearson2, David Dudgeon3, Verónica Ferreira4, Manuel A. S. Graça4, Mark O. Gessner5,6†‡, Andrew J. Boulton7, Eric Chauvet8,9, Catherine M. Yule10, Ricardo J. Albariño11, Alonso Ramírez12, Julie E. Helson13, Marcos Callisto14, Muthukumarasamy Arunachalam15, Julián Chará16,17, Ricardo Figueroa18, Jude M. Mathooko19, José F. Gonçalves Jr14§, Marcelo S. Moretti14¶, Ana Ma...
The marine environment is a rich source of biodiversity and chemical compounds, and based on biodiversity knowledge, it is believed that the highest biodiversity is related to living organisms in tropical and semi-equatorial regions. The goal of this study was the biodiversity of Demospongiae sponge in Assaluyeh area in May 2018. Sampling carried oyu by using Coadrat in three sites with three r...
Fine inorganic sediment (≤ 2mm) is a major non-point source pollutant in streams. While some fine sediment in streams is natural, loads in human-impacted streams often exceed their capacity to flush these sediments during high flows. Regardless of the source, the negative effects of increased levels of fine sediment in streams are realized in all biotic components of stream ecosystems from micr...
The stream macroalgal floras of two proximate, high-quality stream valleys (Hanakapl'ai and Limahuli) located on the northern quadrant of the Hawaiian island of Kaua'i were inventoried and compared on a watershed scale, providing interesting insight into Hawai'i's potential taxonomic diversity and the influential role played by physical factors in shaping community characteristics. A total of 2...
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