What question did this study set out to answer?

To evaluate principal component analysis as a tool for characterizing seasonal phytoplankton community periodicity and identifying associated physico-chemical correlates.

March 1, 1978Phycologia

An assessment of principal component analysis for description of phytoplankton periodicity in Lake Wingra

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Authors

SBSteven M. BartellStantec (United States)TAT. F. H. AllenUniversity of Wisconsin–Madison JKJ. F. KoonceCase Western Reserve University

Discussion

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Implication

Ecological ordination reveals stable seasonal phytoplankton regimes separated by asymmetric transitions in a lake ecosystem, highlighting non-reversible community dynamics.

Key Points

To evaluate principal component analysis as a tool for characterizing seasonal phytoplankton community periodicity and identifying associated physico-chemical correlates.
Collected regular phytoplankton samples over a 41-month period from March 1970 through August 1973.
Applied principal component analysis to ordinate temporal shifts in species composition.
Evaluated nine physico-chemical environmental factors as potential correlates of community turnover using individual tests and environmental ordination.
Ordination identified two distinct, compositionally stable intervals during winter and summer separated by rapid spring and autumn transitions.
Spring and autumn community transitions were structurally asymmetric, demonstrating that spring compositional shifts do not mirror autumn patterns.
Simultaneous ordination of multi-year pooled samples obscured specific seasonal dynamics compared to single-year analyses.

Cite This Study

Bartell et al. (1978) studied this question.

synapsesocial.com/papers/6a71a6f83ce530166bc326ae https://doi.org/10.2216/i0031-8884-17-1-1.1

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Implication

Ecological ordination reveals stable seasonal phytoplankton regimes separated by asymmetric transitions in a lake ecosystem, highlighting non-reversible community dynamics.

An assessment of principal component analysis for description of phytoplankton periodicity in Lake Wingra

Discussion

Member takes

Implication

Key Points

Cite This Study

An assessment of principal component analysis for description of phytoplankton periodicity in Lake Wingra

Discussion

Member takes

Implication

Key Points

Cite This Study

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