CRICONEMATINAE HABITATS AND LOBOCRICONEMA-THORNEI N-SP (CRICONEMATIDAE NEMATODA)

  • 1 January 1978
    • journal article
    • research article
    • Vol. 10  (1) , 61-70
Abstract
A 16.4 ha area at the Michigan State University Water Quality Research Site [Michigan, USA] was surveyed to obtain information on the habitats and prominence of taxa of the Criconematinae. Fifteen species [Macroposthonia rustica, M. curvata, M. denoudeni, M. ornata, M. xenoplax, Macroposthonia sp., Criconema octangulare, Crossonema menzeli, C. cobbi, Nothocriconema permistum, N. princeps, N. petasum, N. mutabile, Xenocriconemella macrodora] of this subfamily were recovered from the experimental site. Species occurrence and population densities were evaluated using prominence and importance values. The Criconematinae was one of the most prominent and important nematode subfamilies recovered from this area. The species successfully inhabited a broad range of woodlot and field vegetations and soil management groups. Criconematinae taxa generally were more prominent in woodlot than in field vegetations, although with several important exceptions, especially within the genus Macroposthonia. The second most prominent and important species recovered was an undescribed species of Lobocriconema. It is described as L. thornei sp. nov. including scanning electron micrographs of females and descriptions of several of the juvenile stages.

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