Mode of access: World Wide Web. / Thesis (Ph. D.)--University of Hawaii at Manoa, 2004. / Includes bibliographical references (leaves 213-271). / Electronic reproduction. / Also available by subscription via World Wide Web / xix, 271 leaves, bound ill. 29 cm

Thesis (Ph. D.)--University of Washington, 2003. / Vita. Includes bibliographical references (leaves 133-144).

Thesis (B. Sc. (Hons.))--University of Adelaide, Dept. of Crop Protection, 1998? / Includes bibliographical references (leaves 124-134).

Thesis (M.S.)--Oregon State University, 2001. / Typescript (photocopy). Includes bibliographical references (leaves 77-83). Also available on the World Wide Web.

No description available.

Thesis (M. Sc.(Zoology and Entomology))--University of Pretoria, 2009. / Summary in English.

Thesis (Ph. D.)--University of Washington, 1996. / Vita. Includes bibliographical references (leaves [177]-194).

Arthropods were collected at three sites on the Canaveral Peninsula of the east central Florida coast, from May until November, 1975. These sites were old fields dominated by grasses and herbs and one of them (site 1) was located near Launch Complex 41, Kennedy Space Center. A modified drop-trap of 0.5 m2 was used to trap arthropods at approximately 14-day intervals. A vacuum collector removed the arthropods and loose material which was visually inspected for arthropods by the unaided eye and a 7X dissecting scope. A total of 12,296 arthropods was collected during the study. Insects were by far the most numerous group, usually contributing 85 to 95% of the individuals. Ants were very numerous comprising 47% of all individuals and were most numerous at site 1. Arthropod density was greatest on site 1 and increased on all three sites until October and then declined November. A bimodal trend in herbivore density occurred with peaks in June-July and October-November. Predators increased during the study and this significantly correlated with the increase in all other arthropods on the three sites and with herbivores on site 2 and 3. Ants increased in density during the study, while parasites, scavengers, and omnivores remained at low densities. The percentage of predators was roughly constant over most of the study. New species were encountered on site 1 about 1.5 times a fast as on sites 2 and 3. The distribution of individuals among the insect families was similar for the three sites, but site 1 averaged more individuals per family. The average number of individuals per species on site 1 was about double that for sites 2 and 3. Species diversity (Shannon-Weaver) values indicated that arthropods at site 1 were more evenly distributed among the species. Dominance (Simpson) values were not significantly different among the three sites. Community similarity indicated that about 50% of the species on one site were found on one of the other two sites. The different plant communities or habitats surrounding the sites were apparently unrelated to the number of arthropod species present on the study sites. The number of arthropod species present did appear to be related to differences in the number of plant species and their relative abundance on the grids. The launches of two Viking spacecraft appeared to have no detrimental effect on the nearby arthropods.

Thesis (M.S.)--University of Wyoming, 2007. / Title from PDF title page (viewed on Nov. 7, 2008). Includes bibliographical references.

The abundance and diversity of arthropods present in the surface soil layers at various forest sites in northern California were investigated, primarily at two old-growth redwood forest sites in Prairie Creek Redwoods State Park and Jedediah Smith Redwoods State Park. A wide variety of arthropods were found, including representatives of Araneae, Pseudoscorpiones, Opiliones, Acarina, Isopoda, Diplopoda, Chilopoda, Symphyla, Pauropoda, Protura, Diplura, Collembola, Thysanoptera, Hemiptera, Coleoptera, Diptera, and Hymenoptera. Arthropod densities were significantly higher in the wet than in the dry period, indicating seasonal variation in surface densities of soil arthropods. The densities of arthropods in soils collected from beneath coast redwood (Sequoia sempervirens) and western hemlock (Tsuga heterophylla) trees were not significantly different.