Browsing Dr. Robert G. Holmberg by Title
Now showing items 31-50 of 52
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Overwintering aggregations of Leiobunum paessleri in caves and mines (Arachnida, Opiliones).
(Journal of Arachnology, 1984)In the forested mountain areas of southwestern Canada, Leiobunull1 paessleri (Roewer) form overwintering aggregations in the twilight regions of moist caves and mines. Each aggregation consists of adults of both sexes ... -
Plagiarism: hazardous to your academic success
(Voice, 2000-03) -
Platybunus triangularis and Paroligolophus agrestis: two phalangids introduced to North America (Arachnida, Opiliones)
(Journal of Arachnology, 1975) -
Postmortem on a Distance Education Course: Successes and Failures
(American Journal of Distance Education, 1992)Athabasca University (AU) is an open university committed to delivering courses via distance education technology. In 1973, AU started work on "World Ecology: The Scientific Context" as its first home study course. This ... -
Prairie spiders of Alberta and Saskatchewan
(Arthropods of Canadian Grasslands, 2002)In the prairie ecozone of Alberta and Saskatchewan, 356 species of spiders in 2 I families have been collected. The 10 families with the most species were Linyphiidae (30%), Gnaphosidae (13%), Salticidae (8%), Theridiidae ... -
A preliminary biological survey of Athabasca University lands
(Athabasca University, 1986) -
A Preliminary Report On An Environmental Health Program By Home Study
(Environmental Health Review, 1986-12) -
Pulp and Paper Mill References
(Friends of the Athabasca Environmental Association, 1989-02-26)This is an annotated list of books and other materials related to the development and operation of pulp and paper mills in the Athabasca River basin. The purpose of the list is to encourage members of the public to learn ... -
Pulp mills and the environment: an annotated bibliography for northern Alberta
(Canadian Circumpolar Institute, and Environmental Research and Study Centre, 1992) -
Quiet Reflections: my 100+ best photographs
(2008-01-24) -
Rats’ Nest Cave.
(2007-10-31) -
Re-description of Togwoteeus biceps (Arachnida, Opiliones, Sclerosomatidae) with notes on its morphology, karyology and phenology.
(Journal of Arachnology, 1997)The harvestman genus Togwoteeus Roewer 1952 is monotypic. Its only species, T. biceps (Thorell 1877), is known from throughout western Canada and USA and is newly recorded from California, Nebraska, Nevada, Oregon, South ... -
Relating feeding rates to sex and size in six species of grasshoppers (Orthoptera: Acrididae).
(Canadian Entomologist, 1984)Nymphs and adults of both sexes of six species of grasshoppers. Camnula pellucida, Dissosleira carolina, Melanoplus infantilis. M. sanguinipes, M. packardii and M. bivillalus, were fed wheat seedlings to determine daily ... -
Reminiscences about Bert Turnbull
(Canadian Arachnologist, 2007) -
The scent glands of Opiliones: a review of their function.
(Smithsonian Institution Press, 1986)Opilionids are unique among the arachnids in that they possess a pair of glands that open dorsally near the lateral edge of the prosoma. These glands are variously called scent, odoriferous, repugnatory, or stink glands ... -
Selective predation in a euryphagous invertebrate predator, Pardosa vancouveri (Arachnida, Araneae)
(Canadian Entomologist, 1982)Selective predation (i.e., non-random feeding) was studied in a laboratory system that allowed individual lycosid spiders, Pardosa vancouveri, to feed on prey populations consisting of one or two kinds of insects. Various ... -
Selective predation in a polyphagous invertebrate predator, Pardosa vancouveri (Arachnida, Araneae)
(Simon Fraser University, 1979)Selective predation (i.e., non-random feeding) was studied in a laboratory system that allowed individual lycosid spiders, Pardosa vancouveri. to feed on prey populations consisting of one or two kinds of insects. Various ... -
Solpugida of Canada
(Entomological Society of Alberta, 1992-04) -
Teaching biology at-a-distance: dealing with the living. Partners in Learning
(Proceedings of the 14th Annual Conference of the Canadian Association for Distance Education, 1998-05) -
Teaching science at-a-distance: What is so difficult?
(Partners in Learning, Proceedings of the 14th Annual Conference of the Canadian Association for Distance Education, 1998-05)