نتایج جستجو برای: phenological phases
تعداد نتایج: 112694 فیلتر نتایج به سال:
Photo 1: Los Quetzales National Park, located at 3.020 m a.s.l. in the Pacific slope of Talamanca Mountain Range, Costa Rica. This area includes Cerro de la Muerte with largest extent paramo ecosystem country, which is a grass- or shrub-dominated cool and wet upper slopes Neotropical mountains. credit: María A. Maglianesi. 2: The honeybee Apis mellifera visiting Vaccinium consanguineum. bee spe...
Development of wheat (Triticum spp.) is primary driven by temperature, but is also affected by other factors such as vernalization and photoperiod. Crop growth and development are often described in terms of calendar days. However, determining the development in terms of thermal time or physiological time is more accurate because it is an accumulation of the caloric energy needed for the o...
The timing of phenological events, such as leaf-out and flowering, strongly influence plant success and their study is vital to understanding how plants will respond to climate change. Phenological research, however, is often limited by the temporal, geographic, or phylogenetic scope of available data. Hundreds of millions of plant specimens in herbaria worldwide offer a potential solution to t...
Climate change-induced shifts in phenology have important demographic consequences, and are frequently used to assess species' sensitivity to climate change. Therefore, developing accurate phenological predictions is an important step in modeling species' responses to climate change. The ability of such phenological models to predict effects at larger spatial and temporal scales has rarely been...
A challenge in phenology studies is understanding what constitutes phenological change amidst background variation. The majority of phenological studies have focussed on extracting critical points in the seasonal growth cycle, without exploiting the full temporal detail. The high degree of phenological variability between years demonstrates the necessity of distinguishing long term phenological...
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