Predictions of cropland and crop production change, both in magnitude and spatial pattern, are uncertain for many reasons and we highlight a few of them here (see the Materials and Methods section for a complete discussion on sources of uncertainty).
The causes for this pattern are uncertain but may be related to a prevalence of thermophilic species in sea urchins [75], latitudinal differences in recruitment success [76] [77] and salinity tolerance [78], competitive and predatory interactions [79] [80], relief from predation due to overfishing [27], as well as high adaptability of sea urchins to environmental stress [81] [82].
The significance of the cranial base in the contribution of normal and pathologic facial patterns is uncertain.
Forecasted large-scale changes in ocean circulation patterns are uncertain, as are consequences for multidecadal oscillations in climate, as reflected by indices such as the North Atlantic Oscillation (NAO), the Pacific Decadal Oscillation (PDO) and El Niño-Southern Oscillation (ENSO).
The relative role of climate in driving these patterns, however, is uncertain with clines in these traits tending to be inconsistent both across species and continents (Parkash and Munjal 2000; Hoffmann et al. 2001; Sarup et al. 2006; Arthur et al. 2008).
A further reconstruction of sclerite patterns for Neocarida is uncertain, hindered by the absence of data from and taxa within Mancoida, in part caused by lack of pleopods (most likely reduction) in many in-groups, e.g. Cumacea, and unclear in-group relationships [ 36].
"Because our weather pattern is so uncertain, every day has the potential to bring severe weather," Ms. August said.
There are various breeds of spotted horses in Europe and Asia, and the actual source of the spotting pattern in the Appaloosa is uncertain.
Although the implication of H. pylori infection in the pattern observed in this country is uncertain, one cannot rule out the implication of different H. pylori strains which circulate in different regions or which circulated in the first half of the 20th century when the generations currently studied were infected (during their infancy).
