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
    Mangrove species zonation and soil redox state, sulphide concentration and salinity in Gazi Bay (Kenya), a preliminary study (1999)
    Springer
    Mangroves and salt marshes 3 (1999), S. 243-249 
    Details
    ISSN: 1572-977X
    Keywords: Avicennia marina ; Ceriops tagal ; East Africa ; mangal ; Rhizophora mucronata ; spatial structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The relationship between soil redox state, sulphide concentration, salinity and spatial patterns of mangrove species distribution was investigated in the mangrove forest of Gazi Bay (Kenya). Field measurements were conducted to examine the relationship between species distribution along a band transect of 280 m and soil redox potential (Eh) and sulphide patterns, as well as the indirectly related (through flooding regimes) soil salinity. Of the three major species Avicenniamarina, Ceriops tagal and Rhizophoramucronata present along the transect, only the distribution of the latter correlated with the measured soil variables, R. mucronata being absent from the less‐reduced zone with high salinity. Bruguieragymnorhiza and Heritieralittoralis occur in minor populations, they are restricted to the saline, sulphide‐poor and less‐reduced substrates. From the results it is concluded that soil redox potential (Eh), sulphide concentration and salinity may contribute to structure mangroves through the distribution of dominant species, however in combination with other environmental conditions and processes of vegetation dynamics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009971023277
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    On the delimitation of the Mesobromion and Xerobromion in Belgium and French Lorraine (1989)
    Springer
    Plant ecology 81 (1989), S. 137-144 
    Details
    ISSN: 1573-5052
    Keywords: Brometalia ; Canonical correlation ; Classification ; Discriminant analysis ; Oridination ; Soil parameter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Within a broader study of the chalk and limestone grasslands in Belgium, Luxemburg and northern France, the limestone grasslands of the Meuse valley in Belgium and in French Lorraine were investigated. Floristic data as well as environmental variables were taken into account for the delimitation of species and relevé groups. Discriminant analysis and canonical correlation analysis proved to be very helpful in the interpretation of the detected groups as well as for the reconsideration of interrelationships between recognised syntaxa. The present results are consistent with the hypothesis that the limestone grasslands in French Lorraine, even those previously assigned to the Xerobromion, belong to the Mesobromion, and that the limestone grasslands in Belgium belong either to the Mesobromion or to the Xerobromion in an impoverished form.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00045519
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Food preferences of Neosarmatium meinerti de Man (Decapoda: Sesarminae) and its possible effect on the regeneration of mangroves (1997)
    Springer
    Hydrobiologia 347 (1997), S. 83-89 
    Details
    ISSN: 1573-5117
    Keywords: Neosarmatium (= Sesarma) meinerti ; mangrove ; regeneration ; food preference ; propagule predation ; Kenya
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Neosarmatium meinerti is a crab which commonly inhabitsthelandward Avicennia marina fringe in East Africanmangroves.Stomach content analysis of individuals collected at Gazi BayandMida Creek (Kenya) showed that their diet mainly consisted ofmangrove leaves, completed with little animal matter.Experimentsdesigned to offer the crabs a choice of leaves or propagulesof thevarious mangrove species present indicated that N. meinertihas no distinct preference for any of them. Nor is itattracted byspongy material impregnated with the extract of propagulesfrom anyparticular mangrove species. However, at least for Rhizophoramucronata, this crab species has a slight preference forfreshlygathered propagules when presented both matured and freshlygathered ones. There is little evidence that the plant-deriveddietof N. meinerti consists of one mangrove species only,thoughit is probable that this crab will restrict its feeding areawithinthe landward A. marina fringe. Because of the lack ofspecificity in its feeding behaviour, N. meinerti canalso bea threat to the successful regeneration or restoration ofmangrovesthrough seedling or propagule planting.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003015201186
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Studies on the possible role of cation exchange capacity in the soil preference of mosses (1983)
    Springer
    Plant and soil 70 (1983), S. 77-93 
    Details
    ISSN: 1573-5036
    Keywords: Adsorption ; Calcium ; Calcium carbonate ; Cation Exchange Capacity ; Hydrogen ; Magnesium ; Moss ; pH ; Potassium ; Sodium ; Soil preference
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Moss species with a different soil preference with respect to its acidity and carbonate content also differ in their cation exchange capacity (leaf, stem, rhizoid), the acidiphile-calcifuges having lower C.E.C. values than the neutrophile-calcicoles. The higher the C.E.C. value, the more the divalent cations calcium and magnesium tend to be adsorbed as compared to the monovalents sodium and potassium, from an equinormal tetracationic solution. The increase in divalent adsorption is mainly due to calcium. Considering this differential adsorption of calcium and in view of data in literature on membrane characteristics, it appears that among the studied cations calcium is an important factor in the observed soil preference through its presence in the cell wall adsorbed fraction and thus in the membrane environment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02374752
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Soil preference of populations of genotypes ofAsplenium trichomanes L. andPolypodium vulgare L. in Belgium as related to cation exchange capacity (1983)
    Springer
    Plant and soil 72 (1983), S. 275-282 
    Details
    ISSN: 1573-5036
    Keywords: Aluminium ; Asplenium trichomanes ; CaCO3 ; Calcicole ; Calcifuge ; C.E.C. ; Fern ; Hydrogen pH ; Polypodium vulgare ; Soil preference ; Subspecies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract A number of populations ofPolypodium vulgare L. andAsplenium trichomanes L. were sampled with corresponding soils in Belgium in order to get an idea of their suitability for the investigation of related calcicole and calcifuge taxa. Morphology and cytology enabled us to distinguish the subspecies and the hybrids. Analyses of the soils for pH, CaCO3, Al and H show that subspecies and hybrids have distinct soil preferences and can be characterised as calcicoles-neutrophile/basiphiles or calcifuge-acidiphiles. Physiological implications of the ecological status of the taxa are discussed in the light of their root cation exchange capacity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02181966
    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...