Search
Now showing items 1-10 of 14
Annotated list of the ants of the Thunder Bay District
(1970)
Thirty nine species and subspecies of ants were collected from the Thunder Bay District of Ontario, Canada, in the summer of 1970.
Extensions of known range were recorded for Leptothorax poss. texanus, Camponotus ...
Vegetation and vegetation-environment relationships in a muskeg-fen near Thunder Bay, Ontario
(1979)
This study takes place in an endangered peatland
within the city of Thunder Bay Ontario. The study area,
William Bog, is one of a few remaining peatlands in the
Thunder Bay district which have developed on abandoned
Minong ...
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.
Heavy metal accumulation in a feather moss, Pleurozium schreberi, and soils in Northwestern Ontario
(1977)
It has been determined that carpet-forming mosses are
good indicators of heavy metal deposition, since they are
dependent on their supply of nutrients from above rather than
from the substrate. Samples of the common ...
Annual production and population dynamics of a relatively unexploited walleye, Stizostedion vitreum vitreum (Mitchill 1818), population in Savanne Lake, Ontario
(1979)
Most studies of the walleye have been conducted on highly
exploited populations. Savanne Lake in northwestern Ontario, and
having an area of 364.29 ha, was exploited until 1969, whereupon
it was designated a fish ...
Life history, habits and phylogenetic relationships of Ithycerus noveboracensis (Forster), (New York weevil) (Coleoptera: Curculionoidea)
(1979)
Larvae of Ithycerus are described for the first time. Ten
instars are identified with the possibility of more to be found.
The pupa remains unknown. Spiracular air tubes and orifices show
allometric growth and this, ...
Effects of depressed pH on survival, growth and reproduction of brook trout, Salvelinus fontinalis (Mitchill)
(1977)
Brook trout were continuously exposed to depressed pH values from
4.0 to 6.0, at 0.5 unit Intervals during a nine-month partial-chronic
bloassay. At all pH levels above 4.0, Juvenile fish exhibited greater
than 96 per ...
Studies of the biology of swim bladder nematodes, Cystidicola spp. (Habronematoidea)
(1978)
The life cycle and larval development of swim bladder nematodes, Cystidicola spp., have been elucidated. C, farionis developed in three species of amphipod. Naturally infected amphipods have been found previously but one ...