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Om laboratory and field experiments would help in filling the gap inside the know-how on spatial and temporal dynamics of these effective nematodes and establishing sustainable pest management programs and conservation approaches for applying these biological control agents. INVENTORY From the SOIL NEMATODE FAUNA AT WHITE SANDS NATIONAL MONUMENT, NEW MEXICO. Beacham, Jacqueline1, S. Thomas1, and E. Bernard2. 1Department of Entomology, Plant Pathology, and Weed Science, New Mexico State University, Box 30003, MSC 3BE, Las Cruces, NM, 88003; and 2Department of Entomology and Plant Pathology, University of Tennessee, 2431 Joe Johnson Drive, Area 205, Knoxville, TN, 37996-4500. The rare gypsum landscapes at White Sands National Monument (WHSA), situated in southern New Mexico, represent special chemical and physical habitats for both soil microorganism and plant communities. Activity and diversity of soil organisms are anticipated to play essential roles in the sustainability on the ecosystem. This web site is characterized by seasonal, ephemeral precipitation, and hence variable out there nutrient inflow, followed by localized or generalized drought. These events combined with low water-holding capacity of arid soils and speedy depletion of obtainable nutrients induces a succession of brief, wet, likely copiotrophic periods followed by extended dry and oligotrophic stages. Superficial aquifers induce similarly variable gradients across depth. The objective of this inventory was to assess how soil nematode populations differ across the gradient of ecological internet sites at WHSA, and to find out if these environments bring about distinctive soil nematode diversity or speciation. To answer these concerns, six ecological web sites were inventoried across a gradient of gypsiferous dune development at WHSA like: mesquite coppice dunes of your quartzose sand sheet at the edge of gypsum sand dunes; the barren location linked together with the dry lakebed of Lake Lucero where the gypsum sands originate; an interdune cottonwood web site; marginal Atriplex-grassland web site; intermittent playa website; and an particularly active barchan dune area. Rhizosphere soils from 3 plants of each and every from the two dominant plant species and three, non-rhizosphere, depth-stratified soil samples (0-10 cm; 10-30 cm) had been collected at each website. Samples had been collected throughout the fall of 2011 at the end of your monsoon season, when soil microorganism abundances are at their peak, permitting evaluation of maximum biotic prospective. Soil classification, fertility and gravimetric moisture content had been also assessed and recorded for every single web site. Plant-parasitic nematodes and Aphelenchidae have been initially identified to genus; all other nematodes had been quantified by trophic category with microscopy. Extracted nematodes have been preserved and mounted for morphological species identification with representative specimens photographed and SGC707 cost catalogued for inventory purposes. No living nematodes were collected from either on the lakebed sites or the non-rhizosphere cottonwood soils. Fungivores had been dominant in the prime 10 cm of non-rhizosphere soil at each the quartzose sand-sheet web site along with the active dune web-site. Even so, plant-rhizosphere soils at these two web pages differed, with herbivores and bacterivores present in high numbers at the quartzose internet site when the fungivore population remained predominant in the active dune sight. Surprisingly few nematodes were recovered in the cottonwood-rhizosphere soil in spite of the prevalence of roots. Herbivores had been.