The impact of a natural drawdown on the growth of four emergent species in a prairie glacial marsh

Valk, Arnold G. van der; Davis, Craig B.

doi:10.1016/0304-3770(80)90033-9

Cited by 52 publications

(20 citation statements)

References 8 publications

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“…Wetland plant communities are very responsive to changes in surface-water levels (Meeks, 1969;Cooke, 1980;van der Valk and Davis, 1980;Keough et al, 1999). Water levels are, in turn, often responsive to changes in climate.…”

Section: Ground-water Discontinuities Influence Nonlinear Dynamics Inmentioning

confidence: 99%

“…In freshwater wetlands, water levels typically increase during cool periods and decrease during warm periods (Winter, 1989;Winter and Rosenberry, 1995;Baedke and Thompson, 2000). The expected linear response of plant communities in the short-term is a reduction in emergent species in years when water levels are high and a resurgence of emergents from the seedbank when water levels are lower and result in exposed sediments (van der Valk and Davis, 1978;Keddy and Reznicek, 1986). Over longer time periods ranging from decades to centuries to millennia, the expected linear response is also deeper open water with few emergent species during cool, wet climate phases, and shallow marsh with shoreline and mudflat species during warm, dry phases (Singer et al, 1996).…”

Section: Ground-water Discontinuities Influence Nonlinear Dynamics Inmentioning

confidence: 99%

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Nonlinear dynamics in ecosystem response to climatic change: Case studies and policy implications

Burkett

Wilcox

Stottlemyer

et al. 2005

Ecological Complexity

237

177

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Many biological, hydrological, and geological processes are interactively linked in ecosystems. These ecological phenomena normally vary within bounded ranges, but rapid, nonlinear changes to markedly different conditions can be triggered by even small differences if threshold values are exceeded. Intrinsic and extrinsic ecological thresholds can lead to effects that cascade among systems, precluding accurate modeling and prediction of system response to climate change. Ten case studies from North America illustrate how changes in climate can lead to rapid, threshold-type responses within ecological communities; the case studies also highlight the role of human activities that alter the rate or direction of system response to climate change. Understanding and anticipating nonlinear dynamics are important aspects of adaptation planning since responses of biological resources to changes in the physical climate system are not necessarily proportional and sometimes, as in the case of complex ecological systems, inherently nonlinear. Published by Elsevier B.V.

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Section: Ground-water Discontinuities Influence Nonlinear Dynamics Inmentioning

confidence: 99%

Section: Ground-water Discontinuities Influence Nonlinear Dynamics Inmentioning

confidence: 99%

Nonlinear dynamics in ecosystem response to climatic change: Case studies and policy implications

Burkett

Wilcox

Stottlemyer

et al. 2005

Ecological Complexity

237

177

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“…Plant communities in depressional semi-permanent wetlands in the glaciated prairie region typically exhibit what may be termed cyclic patterns in response to water level fluctuation (Weller and Spatcher 1965, van der Valk and Davis 1978, Currier 1979. Seeds of Typha spp.…”

Section: Introductionmentioning

confidence: 99%

Chemical constituents and IVDDM of hybrid cattail from a South Dakota prairie pothole

1988

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Abstract:The changes in crude protein (CP), ash, dry matter, neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (ADL), and in vitro digestible dry matter (IVDDM) content in a stand of hybrid cattail (Typha x glauca Godr.) were determined from weekly sample collections from 3 June through 23 September 1983. Vegetative shoots averaged significantly higher CP (P < 0.05), ash (P < 0.001), and IVDDM (P < 0.001) and significantly lower NDF (P < 0.001), ADF (P < 0.01), and ADL (P<0.01) than flowering shoots. Prior to flower spike emergence, CP was greater than 12.1% and IVDDM was greater than 58.5%. Low dry matter content of cattail may limit dry matter intake if livestock are allowed to graze cattail exclusively. Regression of IVDDM on the various chemical constituents showed that CP provided the best explanation of the variability in IVDDM (R 2 = 0.89 and 0.92, respectively, for linear and cubic polynomial equations).

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“…The information includes long-term indicators of past wetland history, a critical factor emphasized in recent investigations relating wetlands to cyclic climatic phenomena Davis 1978b, Van der Valk andDavis 1981). These data could also locate wetlands where vegetation has been destroyed or severely altered.…”

Section: )mentioning

confidence: 99%

“…Very high plant production is characteristic of both marine and freshwater wetlands Davis 1978a, De la Cruz 1978), making them an important source of allochthonous carbon (Mulholand 1981, Mulholand and Kuenzler 1978, De la Cruz 1979. Their relationship to local hydrology and climatic conditions is discussed by Gosselink and Turner (1978), Van der Valk and Davis (1978b), and Van der Valk and Davis (1981) their use as natural wastewater treatment sites (Nicols 1984, EPA andUS Fish arid Wildlife Service 1984). Wetland preservation has become a critical issue.…”

mentioning

confidence: 98%

Environmental gradients in northwest freshwater wetlands

Sanville

Eilers

Boss

et al. 1986

Environmental Management

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ABSTRACT/Wetland environmental characteristics are examined to determine their spatial and temporal relationships. Two very different Oregon freshwater wetlands provided a range of wetland types. Resutts are evaluated to determine the possible use of environmental characteristics in defining wetlands and their boundaries. Representative physical, hydrological, and edaphic properties were periodically measured in microplots along upland/wetland transects. A multivariate approach is stressed in the data analysis; correlation, cluster analysis, and principal components analyses were used. The results indicate the environmental characteristics change in a quantifiable manner both spatially and temporally. The controlling mechanism is moisture, spatially in terms of the upland/wetland transect and temporally with respect to seasonal response. These changes do not correlate well with vegetation. Several hypotheses are offered as an explanation. Correlation within environmental characteristics is variable but definite patterns are discernible. These data suggest both single and combinations of environmental characteristics that could serve as "keys" in wetland identification and boundary determination. However, before extensive use is made of this information additional long-term monitoring of wetland environmental characteristics will be required.

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The impact of a natural drawdown on the growth of four emergent species in a prairie glacial marsh

Cited by 52 publications

References 8 publications

Nonlinear dynamics in ecosystem response to climatic change: Case studies and policy implications

Nonlinear dynamics in ecosystem response to climatic change: Case studies and policy implications

Chemical constituents and IVDDM of hybrid cattail from a South Dakota prairie pothole

Environmental gradients in northwest freshwater wetlands

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