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Estuarine gradients determining the quality of tidal march halophytes as host plants for endophagous insect larvae: experimental evidence
Hemminga, M.A.; van Soelen, J.; Kiswara, W. (1993). Estuarine gradients determining the quality of tidal march halophytes as host plants for endophagous insect larvae: experimental evidence, in: Meire, P. et al. (Ed.) Marine and Estuarine Gradients: ECSA 21: Proceedings of the 21st Symposium of the Estuarine and Coastal Sciences Association held in Gent, 9-14 september 1991. Netherlands Journal of Aquatic Ecology, 27(2-4): pp. 377-382
In: Meire, P.; Vincx, M. (Ed.) (1993). Marine and Estuarine Gradients: ECSA 21: Proceedings of the 21st Symposium of the Estuarine and Coastal Sciences Association held in Gent, 9-14 september 1991. Netherlands Journal of Aquatic Ecology, 27(2-4). Netherlands Society of Aquatic Ecology: Bilthoven, The Netherlands. 496 pp., more
In: Netherlands Journal of Aquatic Ecology. Kluwer Academic Publishers/Netherlands Society of Aquatic Ecology: Bilthoven. ISSN 1380-8427, more
Peer reviewed article  

Also published as
  • Hemminga, M.A.; van Soelen, J.; Kiswara, W. (1993). Estuarine gradients determining the quality of tidal march halophytes as host plants for endophagous insect larvae: experimental evidence. Neth. J. Aquat. Ecol. 27(2-4): 377-382, more

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Keywords
    Marine; Brackish water

Authors  Top 
  • Hemminga, M.A., more
  • van Soelen, J., more
  • Kiswara, W.

Abstract
    Phytophagous insects of estuarine tidal marshes which live inside their host plants, are, in contrast to the plants, not directly exposed to the estuarine salinity gradient. Previous field studies, however, have shown that patterns of growth and development of Agapanthia villosoviridescens larvae, stem-borers of the halophyte Aster tripolium, gradually change on tidal marshes along the Westerschelde estuary (HEMMINGA and VAN SOELEN, 1988). In the present study we carried out a laboratory experiment in which we followed growth of A. villosoviridescens larvae from two different Westerschelde tidal marshes; the larvae either were kept in A. tripolium stems from their own marsh, or they were kept in stems from the other marsh. It was found that larvae from both tidal marshes showed larger weight increases in A. tripolium stems from the least saline marsh. Apparently, differences in host plant quality between stems of the two marshes exist. The results lend support to the hypothesis that growth and development, and distribution and abundance of phytophagous insects in estuarine tidal marshes may be indirectly influenced by estuarine gradients, via the host plant quality which changes along the estuary.

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