نتایج جستجو برای: fishing and hunting
تعداد نتایج: 16831426 فیلتر نتایج به سال:
Hunting is one of the human activities that directly affect wildlife and has received increasing attention given its socioeconomic dimensions. Most studies have been conducted on coastal and wetland areas and showed that hunting activity can greatly affect bird behaviour and distribution. Hunting-free reserves for game species are zones where birds find an area of reduced disturbance. We evalua...
agunmukha river is an important water body having plentiful aquatic resources. the fisheries communities in the river are familiar with a diverse range of fishing gear and crafts to catch fish. therefore, the objectives of the present study were to explore fishing gear and fishing crafts, catch composition of the respective gearand identification of fish biodiversity of agunmukha river. a step ...
The impact of hunting (selective harvest, trophy hunting) on the demography of mammals is well documented. However, despite continual year-round hunting of bison in some populations, little is known about how the behavior of survivors may be altered. Therefore, in this initial study, we used focal-animal observations in adjacent populations of continually hunted and protected Plains bison (Biso...
The hunting & animal patterns is indeed one of the most important & effective motifs which can be seen in Persian Art since ancient times. For a long period of time, these motifs (which include religious & old mythological concepts, and tell about the geographical & natural human being environment, as well as his own desires, his domineeringness, and struggle for survival), have been designed &...
Nonlinear hunting speeds of railway vehicles running on a tangent track are analytically obtained using Hopf bifurcation theory in this paper. The railway vehicle model consists of nonlinear primary yaw dampers, nonlinear flange contact stiffness as well as the clearance between the wheel flange and rail tread. Linear and nonlinear critical speeds are obtained using Bogoliubov method. A compreh...
the aim of this study was to determine influencing factors on participation of fishermen member cooperative in sustainable fishing in golestan province. the methodological approach of this study was descriptive- correlative. the research population consisted of 144 fishermen who member cooperative, which were selected using census method. validity of the instrument was established by a panel of...
All known chimpanzee populations have been observed to hunt small mammals for meat. Detailed observations have shown, however, that hunting strategies differ considerably between populations, with some merely collecting prey that happens to pass by while others hunt in coordinated groups to chase fast-moving prey. Of all known populations, Taï chimpanzees exhibit the highest level of cooperatio...
This study was conducted to evaluate the performance of Gilan trawling cooperatives. In this research, the descriptive statistics and break-even analysis method was used and the data of this research were collected by using a questionnaire from trawling cooperatives for the fishing season of 1396. The results showed that the cooperatives of Rasht and Astara with the average of 111829 and 7710 k...
Nowadays unemployment has become one of the most important issues and challenges of Iran`s economy. In order to achieve the goals of the Sixth Development Plan, annual job creation of 952,379 people is required. Given the lack of government resources and the need for their optimal allocation, identifying the most effective way to realize this job creation is the aim of this research. According ...
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