Region III has a similar
annual variation of erosivity as that for Region II except for a more rapid increase of the erosivity in the summer months.
Chi-squared and cluster analysis of mean
annual variation show relationships among the wells that correlate with well depth and position on the flood plain.
A Kruskal-Wallis test was used to examine the
annual variation within the species at Prairie Creek for all data and also for a subset consisting of only those data that were collected during the 15 May to 15 August window.
Although ecological investigations have routinely incorporated the analysis of daily, monthly, or seasonal variation in ecological parameters,
annual variation has been considered less often, and published studies based on data from more than a few years are comparatively scarce.
Annual variation and survival advantage of large juvenile sideblotched lizards, Uta stansburiana: its causes and evolutionary significance.
The amplitude of the
annual variation generally increases by approaching the Bermejo river estuary, which is in accordance with the increasing amount of water received from the inflowing rivers.
The
annual variation rates of the NDVI were calculated using the annual mean maximum NDVI of each pixel for China and different regions during 1998-2013.
The interaction sex*bi-month was not significant ([F.sub.5/67] = 1.48; p = 0.207), the
annual variation of body mass was quite similar for both sexes, with the highest values from April to September and the lowest from eecember to February (Fig.
Changes in food availability can be a result of seasonal and
annual variation in weather conditions, human-induced habitat changes, and climate change (Walther et al.
Findings showed a clear
annual variation in the decay rate of a radioactive isotope called chlorine 36, with the highest rate in January and February and the lowest rate in July and August, over a period from July 2005 to June 2011.