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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
341

Factors limiting the colonization success of an introduced exotic fish (Carassius auratus)

Richardson, Michael John January 1996 (has links)
The goldfish (Carassius auratus) is a hardy exotic species that have established sporadically distributed feral populations throughout North America. In one shallow seasonally anoxic pond goldfish formed a large stunted population of 15-17,000 ind ha$ sp{-1}$, with 53% being small young of the year. Goldfish were predominantly benthic herbivores with little diet overlap with resident red-spotted newts (Notapthalmus v. viredescens). Thus in relatively simple systems lacking fish predators goldfish can be very successful. However in systems with a complex native fish community, goldfish have had less success in colonizing. This could be related to an inability of goldfish to cope with native predators. / Tests for assortative shoaling between brown and gold coloured morphs showed that gold coloured fish exhibited no colour based assortive shoaling, while brown fish showed slight but significant colour preferences for like-coloured fish. This level of shoaling preference did not improve after visual exposure or interaction with native predators, indicating that goldfish showed limited behaviourial responses to predators, and that they were unable to modify their response to a predation threat. Further trials allowing goldfish to interact with either pike (Esox lucius) or bass (Ambloplites rupestris), in both single species groups of predator-naive goldfish, and mixed species conditions of goldfish with predator-experience minnows, showed that goldfish did not alter their behaviour in the presence of minnows (Pimephales notatus) when the predators were not present. However, with the predators present goldfish altered their activities to a more minnow-like pattern and showed a significant improvement in anti-predator behaviour. This improved behaviour continued by goldfish when they were retested on their own, indicating that the goldfish were reacting to the predator and not the minnows. Goldfish colonization may therefore be limited not so much by predation or competition from native cyprinids, but more by the absence/presence of a suitable, native, predator-experienced fish from which to copy the appropriate anti-predator behaviours.
342

A reexamination of the adoption of the bow and arrow in the eastern woodlands

Meece, Jamie S. January 2007 (has links)
This thesis reexamines the adoption of the bow and arrow in the Eastern Woodlands. Archaeologists have usually relied on the size and shape of projectile points to help them determine when the bow and arrow was adopted, since the other parts of this complex system (e.g., the wooden bows and arrow shafts) do not survive well in the Eastern Woodlands. The current belief is that the bow and arrow was introduced during the Late Woodland period (AD 500) in the Eastern Woodlands. This is based on the wide spread use of small stone projectile points and on their continued use up to European contact. However, this small point technology was actually established during the Late Archaic period (2000 BC). A wide range of evidence is presented in this thesis that shows that the bow and arrow may have been adopted during the Late Archaic period and was well established during the Middle Woodland period (AD 100) in several Eastern Woodland states. / Department of Anthropology
343

Casting eastern North American point types

Schwartz, Raphael Lee January 1977 (has links)
The purpose of this project is to demonstrate a technique in producing reproductions of points in acrylic. Based on an article by John R. Rohner in Volume 35 of American Antiquity entitled, "Techniques of Making Plastic Casts of Artifacts 'From Permanent Molds".The project expanded on this idea, and added different steps in order to simplify the procedure. Completed, the finished points will be used as teaching aids.
344

Silent killer : the epidemic on native diabetes in Canada /

Elliott, Louise January 1900 (has links)
Thesis (M.J.)--Carleton University, 2001. / Includes bibliographical references (p. 154-157). Also available in electronic format on the Internet.
345

The Niitsitapi trade : Euroamericans and the Blackfoot-speaking peoples, to the mid-1830s /

Smyth, David., January 1900 (has links)
Thesis (Ph. D.)--Carleton University, 2002. / Includes bibliographical references (p. 531-592). Also available in electronic format on the Internet.
346

Recognizing aboriginal voice in federal government exhibitions : a case study of Transitions: contemporary Canadian Indian and Inuit art /

Evtushenko, Melanie, January 1900 (has links)
Thesis (M.A.)--Carleton University, 2004. / Includes bibliographical references (p. 95-107). Also available in electronic format on the Internet.
347

The American Indian in the Great War : real and imagined /

Camurat, Diane. January 1900 (has links)
Thesis (Master's)--Institut Charles V, University of Paris VII, 1993. / Also available on the World Wide Web. Includes bibliographical references.
348

Slahal : more than a game with a song /

Cunningham, James Everett. January 1998 (has links)
Thesis (Ph. D.)--University of Washington, 1998. / Vita. Includes bibliographical references (leaves [191]-200).
349

A rhetoric of alliance what American Indians can tell us about digital and visual rhetoric /

Haas, Angela M. January 2008 (has links)
Thesis (Ph. D.)--Michigan State University. Dept. of Rhetoric & Writing, 2008. / This dissertation traces an American Indian intellectual tradition of digital and visual rhetoric theories and practices through the study of the early and continuous indigenous sign technologies of wampum belts, pictographs, and petroglyphs--as well as a contemporary site of new media: blogs. This research demonstrates how American Indians have a history of resisting colonial constructs of Indian identity and re-imagining Indianness in hypertextual, [digital-visual] spaces in the face of a still-present digital divide--Condensed from abstract. Title from PDF t.p. (viewed on July 23, 2009) Includes bibliographical references (p. 208-218). Also issued in print.
350

Red, white and black race formation and the politics of American Indian recognition in North Carolina /

Nowell, Jeremiah James. January 2000 (has links)
Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2000. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 300-313).

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