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open access

Habitat Partitioning by a Riparian Cursorial Spider Guild, and Intraspecific Behaviors of the Wolf Spider Pardosa valens (LYCOSIDAE) and the Stonefly Hydroperla crosbyi (PERLODIDAE)

Description: Members of a guild of cursorial spiders (Pardosa spp. and Alopecosa spp.) spatially segregated among five discrete habitats, from a streamside cobble habitat grading laterally along a successional gradient to the leaf litter zone of a transition or climax riparian forest. Seasonal activity peaked in midsummer for all guild members. Spiders were active diurnally earlier in the streamside habitats, and levels of activity were positively correlated with light intensity. Guild members Pardosa trist… more
Date: May 1991
Creator: Moring, J. Bruce (James Bruce)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Cellular Biomarkers for Measuring Toxicity of Xenobiotics: Effects of PCBs on Earthworm Lumbricus Terrestris Coelomocytes

Description: The research presented herein provides information on coelomocyte (leukocyte) collection, function and immunotoxicity from polychlorinated biphenyls (PCB) in the earthworm Lumbricus terrestris. Research was undertaken as part of an overall goal to develop a well-documented and scientifically valid non-mammalian surrogate immunoassay with the earthworm Lumbricus terrestris to assess immunotoxic potential of xenobiotics. The principal objectives were to: (1) Develop an extrusion model for analyzi… more
Date: May 1991
Creator: Eyambe, George Sona
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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