نتایج جستجو برای: exceptional ecological conditions
تعداد نتایج: 952767 فیلتر نتایج به سال:
The northern Andes, with their steep elevational and climate gradients, are home to an exceptional diversity of flora and fauna, particularly rich in avian species that have adapted to divergent ecological conditions. With this diversity comes the opportunity for parasites to exploit a wide breadth of avian hosts. However, little research has focused on examining the patterns of prevalence and ...
The exception principle of management reporting suggests that, under ordinary conditions, operational staff persons make decisions, but that the same staff refer decisions to upper-level managers under exceptional conditions. Forecasts of large changes or extreme values in product or service demand are potential triggers for such reporting. Seasonality estimates in univariate forecast models an...
The Oak genus (Quercus L.) is one of the most important genera of beach family (Fagaceae) that has ecological and economical importance. Chestnutleaf oak (Quercus castaneifolia C.A. Mey.) is native to Iran and distributed in Hyrcanian forests. Pure and mixed stands of this taxon have covered about 6.5 % of Hyrcanian forests. This study was undertaken to evaluate the effects of ecological factor...
the oak genus (quercus l.) is one of the most important genera of beach family (fagaceae) that has ecological and economical importance. chestnutleaf oak (quercus castaneifolia c.a. mey.) is native to iran and distributed in hyrcanian forests. pure and mixed stands of this taxon have covered about 6.5 % of hyrcanian forests. this study was undertaken to evaluate the effects of ecological factor...
today, determination of the ecological species groups for current and future situation of forest and its relationship with environmental factors is necessary for forest management. for this purpose, 50 plots were established in altitude range of 2091- 2811 meters above sea level and 600 hectare in protected area of western dena. four ecological groups was identified using twinspan analysis that...
Early-life ecological conditions have major effects on survival and reproduction. Numerous studies in wild systems show fitness benefits of good quality early-life ecological conditions ("silver-spoon" effects). Recently, however, some studies have reported that poor-quality early-life ecological conditions are associated with later-life fitness advantages and that the effect of early-life cond...
The aim of this research was to determine the correlation of job hardship perception and wellbeing with job adjustment of teachers of exceptional children. This research was a description of Correlation type such that the statistical population of the study include all of the teachers of exceptional student of the west provinces of Iran (Ilam, Lorestan. Kermanshah, Kordestan). For this respect,...
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