Retrospective theses: Recent submissions
Now showing items 1141-1160 of 1605
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Upland boreal forest northwest of Thunder Bay, Ontario : ecology and applications to silviculture
(1984)Multivariate phytosociological methods were used to investigate the ecology of upland boreal forest stands. The ecological information was used to derive silvicultural recommendations. The boreal forest stands did not ... -
Effective root growth potential of jack pine (Pinus banksiana Lamb.) container stock
(1989)The effective root growth potential (RGP) of both potted and outplanted jack pine seedlings grown in Lannen-Sokeri FH-408 paperpots and Can-Am #2 Multipots was measured on three test dates during the summers of 1986 and ... -
Genetic variation of wood properties in balsam poplar (Populus balsamifera L.)
(1995)Genetic variation in wood properties among and within three provenances of balsam poplar was investigated. Between 1982 and 1984, clonal populations were sampled along the Longitude 9QOW in North Wisconsin (Lat. 45°N ... -
Genetic and environmental variation in seed, cone and progeny characteristics of black spruce clones in a northern Ontario seed orchard
(1985)Genetic and environmental variance in cone and seed properties and early progeny growth of Picea mariana (Mill.) B.S.P. clones were evaluated using cones and seed from two to three ramets of 19 clones each growing in a ... -
The influence of acid rain and drought on early growth and development of jack pine and balsam poplar
(1994)The influence of "acid rain" (watering with tap water acidified to pH 3.0 ) and drought on jack pine seedlings and balsam poplar cuttings growing in two different soil types was studied in a short-term greenhouse experiment. ... -
Ecological effects of several reforestation and rehabilitation treatments on abandoned shifting cultivation sites in Sarawak, East Malaysia
(1994)The biomass, nutrient contents and soils of a chronosequence, including undisturbed primary forest (UPF), logged over forest (LOF), cleared and burned forest (for cultivation), abandoned cultivation sites, and four ... -
Competition trials of Pinus banksiana and Populus tremuloides under a range of proportions and densities
(1986)This study was the -first study designed specifically to analyse the competitive effects of density and species mixture for both Pinus banksiana and Populus tremuloides seedlings during the initial stages of growth and ... -
Effect of harvesting methods on the phytosociology of a boreal mixedwood forest community
(1994)A naturally regenerating boreal mixedwood site was remeasured 37 years after four harvest treatments; clearcutting (CC), deferred 'softwoods only' cutting (DC), 'softwoods only' cutting (SC), and hardwoods poisoned, ... -
Genetic variation in traits affecting the water relations of balsam poplar along a latitudinal transect in Northwestern Ontario
(1992)Genetic variation In traits potentially affecting the waterrelations of balsam poplar (PopuIus balsamifera L.) clones from four provenances along a transect from northern Wisconsin to Pickle Lake in northwestern Ontario ... -
Effect of photoperiod on apical growth cessation in tamarack (Larix laricina) and balsam poplar (Populus balsamifera) provenances from northern Ontario
(1990)The effects of four photoperiods (i.e. 6, 10, 14, and 18 hours) on the rate of apical growth cessation and apical bud primordia production were studied in controlled environment experiments using tamarack {Larix laricina ... -
Genetic variation in growth and yield components of juvenile balsam poplar (Populus balsamifera L.) growing in northwestern Ontario / by Frank Schnekenburger
(1988)A nursery and greenhouse study of balsam poplar (Populus balsamifera L.) were carried out in Thunder Bay, Ontario, to study the extent and nature of variation in growth and its relation to the following yield components: ... -
Effects of wind induced soil moisture stress on the germination and early growth of Pinus banksiana Lamb. on three soil texture types
(1988)A controlled environment wind tunnel was used to produce three wind speeds and hence three soil drying rates in order to study the effects of soil moisture stress on seeds and germinants of Pinus banksiana Lamb, planted ... -
Variation of syllepsis in eleven tamarack [Larix laricina (Du Roi) K. Koch] provenances in Northwestern Ontario and its relation with height growth
(1990)Variation in syllepsis of tamarack and its relationship to juvenile height growth in eleven tamarack provenances from northwestern Ontario was evaluated in a four-year-old clonal test planted at Thunder Bay, Ontario. ... -
Roles of teacher assistants in elementary school special education settings
(1992)While the occupation of teacher assistant has become rooted in the Ontario School System no research exists concerning the roles these teacher assistants perform in Ontario. There is also a paucity of research which examines ... -
Perceptions of Catholic administrators and trustees regarding Bill 30's impact on the mission of separate schools
(1992)This study examines the perceptions of Catholic Administrators and Trustees about Bill 30's impact on the ability of Separate School Boards in Ontario to retain their distinctive mission. The conceptual lens for this ... -
Adoption and use of computer mediated communications : reactions of female site coordinators in a distributed education system
(1989)This study examines women's reactions to the introduction of computer-mediated communications (CMC). The literature suggests women exhibit some reluctance in the use of computer technology. There are, however, computer ... -
Preliminary investigation into the bioacoustics of Cicindela spp. (Coleoptera: Cicindelidae)
(1989)Initial investigations into bioacoustics of Cicindela spp. (Cicindelidae: Coleoptera) were designed to establish the systematic usefulness of acoustic variables, the possibility of auditory communication, and lay ... -
The proventriculus of Cicindelidae : systematics and functional morphology
(1994)Internal structures of the proventriculus of adult tiger beetles were examined to determine their function and taxonomic and phylogenetic value. The overall appearance of the proventriculus suggested an intricate ... -
Mating behaviour, spermatophore structure, ecology and systematics of the Cicindela splendida group (Coleoptera: Cicindelidae)
(1988)Observations of copulating pairs of conspecific and interspecific individuals of Cicindela splendida Hentz and Cicindela limbalis Klug revealed behaviour similar to that previously described for Pseudoxych.ila tarsalis ...
