GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Flood tolerance and the distribution of Iva frutescens across New England salt marshes (1992)
    Springer
    Oecologia 91 (1992), S. 171-178 
    Details
    ISSN: 1432-1939
    Keywords: Salt marsh ecology ; Halophytic plants ; Flooding ; Wetland plant communities ; Iva frutescens
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Tidal flooding is widely believed to be an important determinant of marsh plant distributions but has rarely been tested in the field. In New England the marsh elder Iva frutescens often dominates the terrestrial border of salt marshes and we examined its flood tolerance and distribution patterns. Marsh elders only occur at elevations where their roots are not subject to prolonged water table flooding. Consequently they are found on the terrestrial border of marshes and at lower elevations associated with drainage ditches and locally elevated surfaces. Marsh elders transplanted to elevations lower than they normally occur died within a year with or without neighbors and greenhouse tests revealed that I. frutescens is much less tolerant of flooded soil conditions than plants found at lower marsh elevations. We also manipulated the water table level of field plots and found that increasing or decreasing water table drainage led to enhanced and diminished I. frutescens performance, respectively. Our results demonstrate the importance of water table dynamics in generating spatial patterns in marsh plant communities and provide further evidence that supports the hypothesis that the seaward distributional limits of marsh plant populations are generally dictated by physical processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00317780
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Salt stress limitation of seedling recruitment in a salt marsh plant community (1992)
    Springer
    Oecologia 92 (1992), S. 490-497 
    Details
    ISSN: 1432-1939
    Keywords: Halophytes ; Salt marsh ecology ; Secondary succession ; Seed bank ; Seedling recruitment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Seedling recruitment in salt marsh plant communities is generally precluded in dense vegetation by competition from adults, but is also relatively rare in disturbance-generated bare space. We examined the constraints on seedling recruitment in New England salt marsh bare patches. Under typical bare patch conditions seed germination is severely limited by high substrate salinities. We examined the germination requirements of common high marsh plants and found that except for one notably patch-dependent fugitive species, the germination of high marsh plants is strongly inhibited by the high soil salinities routinely encountered in natural bare patches. Watering high marsh soil in the greenhouse to alleviate salt stress resulted in the emergence of up to 600 seedlings/225 cm2. The vast majority of this seed bank consisted of Juncus gerardi, the only common high marsh plant with high seed set. We tested the hypothesis that salt stress limits seedling contributions to marsh patch secondary succession in the field. Watering bare patches with fresh water partially alleviated patch soil salinities and dramatically increased both the emergence and survival of seedlings. Our results show that seedling recruitment by high marsh perennial turfs is limited by high soil salinities and that consequently their population dynamics are determined primarily by clonal growth processes. In contrast, populations of patch-dependent fugitive marsh plants which cannot colonize vegetatively are likely governed by spatially and temporally unpredictable windows of low salinities in bare patches.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00317840
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Dispersal of juveniles and variable recruitment in sessile marine species (1992)
    [s.l.] : Nature Publishing Group
    Nature 360 (1992), S. 579-580 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The prediction that failure of larvae to return to shore is a common cause of variable recruitment in coastal species follows from numerous observations (such as location of fish spawning grounds10, correlations between recruitment and shifts in wind direction9'10'12'14'15, behaviour of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/360579a0
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...