birds constitute the important elements of most ecosystems of the world. the objective of this study was to survey and identify birds of boujagh national park. for this reason the park divided into 7 parts and during 24 months, between autumn 1383 and late summer of 1385, the park has been surveyed. the results show that 234 species have been identified (about %46.4 of all bird species througho...

Yellowstone National Park plays host to numerous microbiological research projects — officially 23, according to the 1996 Investigators' Annual Reports. However, once categories such as aquatic ecology, the study of brucellosis and other wildlife diseases, environmental education, geochemistry and geothermal systems, and vegetation are included, the total came to at least 35 in 1996. Research p...

Aquificales are metabolically versatile chemolithoautotrophic thermophilic bacteria. This group is widespread in both deep-sea and terrestrial hydrothermal systems. In Yellowstone National Park, they were first described in early descriptions of the biology of the park, and later captured the attention of many microbiologists including Brock, Stahl, Pace, and others. There are four genera curre...

In this research, vascular plants of Bamu National Park (48000 ha.) situated in Fars province were studied. Analyses of all collected plants (450 species) showed that on account of climatic conditions, 94% of them were flowering in spring, also hemicryptophytes and therophytes possess abundant growth form with 39.6% and 23.5%, respectively. Phytogeographically, Irano-Turanian  elements comprise...

We conducted a series of studies on the implied causal structure of metaphors. Some metaphors are “systemic” and highlight the complexity of relationships. For example, describing a national park as the “backbone” of the park system situates the park in a larger body of national parks, specifying a set of relationships between that park and the whole system. Other metaphors don’t enforce the sa...