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Production ecology of the amphipod Hyalella azteca (Saussure) in a Northern Ontario lake
(1982)
Annual production of the amphipod Hyalella azteca was
estimated in the upper littoral zone of Dock Lake, Ontario, over
a 2 year period (1980-1981). Population density (negligible below
1 meter) differed among the three ...
Patterns of allozyme variation in tamarack (Larix laricina (Du Roi) K. Koch) from northern Ontario
(1988)
Roots from approximately 30 trees from each of 44 populations across the range of tamarack (Larix laricina (Du Roi) K. Koch) in northern Ontario were analyzed electrophoretically for allozymic variation in 14 enzyme
systems ...
Effects of selected biotic and abiotic factors on growth and survival of young crayfish, Orconectes virilis (Hagen)
(1988)
The growth and survival of Orconectes virilis young was
studied in 50 x 50 x 50 cm lake enclosures during the summer
seasons of 1986 and 1987. The effects of density (12/m2, 40/m2,
160/m2), substrate (mud, sand, ...
Effect of body condition on reproductive performance and secondary sex ratios in ring-billed gulls (Larus delawarensis)
(1986)
Nesting Ring-billed Gulls (Larus delawarensis) were studied on
Granite Island, northern Lake Superior, during the breeding seasons of
1983 and 1984 to determine if there was a relationship between food
supply and the ...
Body condition of gray partridge (Perdix perdix) during fall and winter in Saskatchewan
(1983)
During August 1979 to March 1980, 118 Gray Partridge were
collected from a 207[superscript 2] km study area near Tugaske, Saskatchewan.
Temperature and snowpack information were monitored throughout
the study period. ...
Population dynamics of an exploited population of Orconectes virilis in Northwestern Ontario
(1987)
Exploitation of northern stocks of the crayfish Orconectes
virilis (Hagen) produced significant alterations in several
population parameters. High fishing efforts increased per capita
fecundity, young-of-year (YOY) ...
Ecology of northern pike, Esox lucius Linnaeus, in Savanne Lake, Ontario
(1980)
Important aspects of the life history and population dynamics
of the northern pike, Esox lucius, in Savanne Lake, Ontario
were studied during 1977 and 1978. Feeding relationships involving
northern pike and walleyes, ...
Effects of depressed pH on reproduction, growth and survival of flagfish, Jordanella floridae (Good and Bean)
(1978)
Breeding communities of flagflsh {Jordanella floridae) were exposed
to adjusted pH levels of 6.0, 5.5, 5.0, 4.5 and 4.0 for 21 days.
Control water (pH 7.5) received no acid treatment. Egg production was
significantly ...
Carabidae (Coleoptera) and associated Acari in Northwestern Ontario
(1978)
Site collection areas : Shabaqua 65 km. northwest of Thunder Bay and Gilbride Road near One Island Lake 32 km. northwest of Thunder Bay.
Use of a single epiphyte lichen species Hypogymnia physodes as an indicator of air quality in northern Ontario
(1988)
It has been determined that lichens are excellent indicators of regional
air quality, since they are long-lived and totally dependent on atmospheric
sources for nutrients. In the summer of 1987, samples of the ...