The Physical Setting and Succession of Phytoplankton
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Using wavelet analyses to examine variability in phytoplankton seasonal succession and annual periodicity
In most north temperate lakes, phytoplankton biomass oscillates on an annual scale. While phytoplankton seasonal succession within a year has been described for many lakes, much less is known about variability in seasonal succession over multiple years. Here, we describe how continuous wavelet transforms can be used to identify variation in the periodicity in phytoplankton time series at multip...
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Coastal marine systems are affected by seasonal variations in biogeochemical and physical processes, sometimes leading to alternating periods of reproductive growth limitation within an annual cycle. Transitions between these periods can be sudden or gradual. Human activities, such as reservoir construction and interbasin water transfers, influence these processes and can affect the type of tra...
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We examined the potential effects of environmental variables, and their interaction, on phytoplankton community succession in spring using long-term data from 1992 to 2012 in Lake Taihu, China. Laboratory experiments were additionally performed to test the sensitivity of the phytoplankton community to nutrient concentrations and temperature. A phytoplankton community structure analysis from 199...
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Hutchinson showed that there are several characteristic patterns of seasonal changes in phytoplankton assemblages (Hutchinson, 1967). It is now widely recognized that succession patterns vary little from year to year and are usually similar in lakes, having analogous climatic conditions, morphometric characteristics and trophic status (Reynolds, 1984; Harris, 1986). The recurrent character of t...
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Today, human resources are considered as the most important assets of the organization and improving management, despite its importance, is a very difficult task because in any case, organizations are developing and evolving and expectations from managers are rapidly increasing and changing. One of these expectations is the share of succession in management positions, which can not be met by re...
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