نتایج جستجو برای: bird schistosomes
تعداد نتایج: 24996 فیلتر نتایج به سال:
Urban development is rapidly expanding across the globe and is a major driver of environmental change. It is important to understand how bird species responds to urbanization. Therefore I conducted a qualitative study of birds associated with waste sites such as dumpsite and sewage stabilization ponds was carried out on Moshi municipal. The study assessed the diversity between dumpsite and sewa...
An adult common mynah ( Acridotheres tristis ) was presented with severe signs of progressive depression , anorexia , debilitation , and also a history of moderate pododermatitis for the last two months . Hepatomegally was diagnosed clinically and radio-logically . The bird died a couple of hours after referral . Postmortem examination revealed typical liver enlargement with yello...
Background and Objectives: Influenza is an acute, highly contagious disease of a variety of both domestic and wild bird species. The aim of this study was to estimate subclinical infections or previous exposure to H5 and H7 subtypes and to discover potentially important determinants of the prevalence of this disease in industrial and backyard poultry in Iran. Methods: A survey was conducted ...
Fruit loss to birds is a long-standing and costly problem for many producers. We conducted a survey of Honeycrisp apple, blueberry, cherry, and wine grape growers in California, Michigan, New York, Oregon, and Washington to estimate costs of bird damage and benefits of bird damage management. We also assessed grower perceptions of impacts on profits and effectiveness of bird management techniqu...
Coal fires cause severe environmental and economic problems worldwide. In the current paper we analyse the potential of the experimental bi-spectral infrared detection (BIRD) small satellite to register coal fire related spectral radiances and we present BIRD data acquired over two coal fire areas in Northern China. Based on field observations of coal fires in the investigated areas, we visuall...
A fully automated method for the detection and quantification of bird migration was developed for operational C-band weather radar, measuring bird density, speed and direction as a function of altitude. These weather radar bird observations have been validated with data from a high-accuracy dedicated bird radar, which was stationed in the measurement volume of weather radar sites in The Netherl...
Spatiotemporal information on bird migration is of invaluable use to scientists and society alike, but so far no sensor networks have been established that can monitor bird movement continuously over large areas. In aviation bird migration information is important for improving flight safety. Especially military low level flying has a high risk of en-route bird strikes and spatial bird migratio...
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