نتایج جستجو برای: carreau bird
تعداد نتایج: 24591 فیلتر نتایج به سال:
The results of 149 surveys of bird species’ distribution and abundance at Melbourne Airport between January 1997 and June 2000, together with local weather information and bird-strike data were used to assess the comparative importance of a number of variables affecting the incidence of bird-strikes at the airport. At least 36 bird and bat species were involved in ‘bird-strikes’ at Melbourne Ai...
migratory birds are most often responsible for the distribution of avian diseases in different areas and serve as hosts for most parasites, including ectoparasites. the aim of the present study was to record the distribution range of a mesostigmatic mite species, dermanyssus gallinae in barn swallow nests in urmia suburb, north west of iran. the samples were collected from 161 bird nests in 44 ...
this study was performed in second half of year 2009.for bird counting , monthly from septamber until march 2009. total counted birds in maroon lake were (971). maximum number of counted birds was in february (191) and minimum of counted was in septamber (95). total counted birds in jaizan were (385. maximum number of the counted bird was in february (84) and minimum of counted (52) was in ja...
The objective of this paper was determining population and species diversity of water birds and waders in Gandoman wetland during one year from mid-September 2017 to mid-September 2018 using SDR-IV software. Result showed from 70 identified birds, 28 species were waterfowl and 42 species were waders. The largest population was belong to Fulica atra. Anatidae with 33.19 percent frequency was the...
Enterococci are Gram-positive facultative anaerobic bacteria commonly found in the gastrointestinal tract of the mammals and birds. These cocci are isolated from urinary tract infections, bacteremia, endocarditis, and burn wounds in humans. The evolution of antibiotic-resistant enterococci raised a problem due to the possibility of the transmission of these organisms between poultry and human. ...
Two recent publications report that direct bird-to-bird transmission of West Nile virus is possible. The effect of a bird-to-bird transmission on the transmission dynamics of this virus is studied through mathematical modeling. The model still treats the bird-to-mosquito-to-bird as the main transmission route. The results of numerical calculations show that there are changes in the dynamics of ...
city parks play an important role in the welfare of metropolitan people. higher species richness of birds can be considered as a reflection of the health of the park and may satisfy visitors to a higher extent being in a more natural environment. we studied the influence of area and shape of city parks on bird species richness and diversity. 13 parks from among the 35 main city parks in isfahan...
Bird strikes present a huge risk for aircraft, especially since traditional airport bird surveillance is mainly dependent on inefficient human observation. Computer vision based technology has been proposed to automatically detect birds, determine bird flying trajectories, and predict aircraft takeoff delays. However, the characteristics of bird flight using imagery and the performance of exist...
Hoyer, M. V.,j. Winn and D. E. Canfield,Jr. 2001. Citizenmonitoring ofaquatic bird populations using a Floridalake. Lake and Reserv. Manage. 17(2):82-89. Five years of monthly bird counts on a 2.32 km2 lake in north central Florida were used to examine the ability of a citizen volunteer to monitor aquatic bird populations. When compared to published aquatic bird data, collected by professional ...
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