Browsing Biology by Title
Now showing items 49-68 of 228
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The dystroglycan complex is necessary for stabilization of acetylcholine receptor clusters at neuromuscular junctions and formation of the synaptic basement membrane
(2001-02)The dystrophin-associated protein (DAP) complex spans the sarcolemmal membrane linking the cytoskeleton to the basement membrane surrounding each myofiber. Defects in the DAP complex have been linked previously to a ... -
Ecological Assessment of the Plant Communities of the Williams Lake Backlands
(The Williams Lake Conservation Company, 2014-02-12)The Williams Lake Backlands (WLB), covering approximately 200 ha, are the larger, undeveloped part of the Williams Lake Watershed which includes Colpitt Lake and Williams Lake. The WLB are part of "Purcell's Cove Backlands" ... -
The Ecology of Atlantic Cod (Gadus morhua) in Canadian Arctic Lakes
(2011-06)The range of limnological conditions that support Atlantic cod populations in meromictic Arctic lakes is known to be relatively restricted. The degree to which differences in these features, particularly in the availability ... -
The ecology of transition
(COGnition (Eco-Farm & Garden), 1988)A popular account of scientific research on the processes involved in the transition of a mixed laying hen-grain farm In the Annapolis Valley, Nova Scotia from conventional to organic management. -
Effect of a low-fat diet on body composition and blubber fatty acids of captive juvenile harp seals (Phoca groenlandica)
(2000-01)We investigated the effects of a change from a high-fat diet to a low-fat diet of differing fatty acid (FA) composition on the body composition and blubber FA of five captive juvenile harp seals. Seals that had been ... -
Effect of Boundary Layers on Cutaneous Gas Exchange
(1990)Boundary layers may offer significant resistance to cutaneous oxygen uptake by amphibians in water. This hypothesis was tested by measuring resistance to oxygen uptake as a function of water velocity in bullfrogs submerged ... -
Effect of Coronary Ablation and Adrenergic-Stimulation on In-Vivo Cardiac-Performance in Trout (Oncorhynchus-Mykiss)
(1994-01)In fish, catecholamine-induced changes in cardiac performance in vivo are the result of complex interactions between the direct adrenergic effects on the heart and peripheral circulation and the reflex responses to increased ... -
Effects of eutrophication, grazing, and algal blooms on rocky shores
(2006-01)Eutrophication can profoundly change rocky shore communities. These changes often cause the replacement of perennial, canopy-forming algae such as Fucus spp. with annual, bloom-forming algae such as Enteromorpha spp. ... -
The energetics of male reproduction in an acquatically mating pinniped, the harbour seal
(1998-07)The energy expenditure of breeding male harbour seals, Phoca vitulina, on Sable Island, Nova Scotia, was investigated by measuring changes in body mass, body composition, and water flux using isotope dilution. Seals lost ... -
Entombed Plant-Communities Released by a Retreating Glacier at Central Ellesmere Island, Canada
(1984)No abstract available. -
Estimating fertilization success in marine benthic invertebrates: A case study with the tropical sea star Oreaster reticulatus
(2002-01)Several factors can influence fertilization success, and for marine broadcast spawners, the main constraint is rapid dilution of gametes. Because the measurement of fertilization success in the field is logistically ... -
Estimation of growth rate, production and age of the marine angiosperm Thalassia testudinum König
(University of Puerto Rico, 1973)There is a linear relation between average growth rate and the average maximum leaf length of Thalassia stands. The ratio production-to-standing crop (wet weight including epiphytes) tends to be constant. New foliage leaves ... -
Estimation of Temporal Variability in Populations
(1995-10)A common measure of the temporal variability of a population is the standard deviation of the logarithms of successive estimated population sizes, In(D-t). This measure overestimates true temporal variability (the standard ... -
Estimation of total body water in pinnipeds using hydrogen-isotope dilution
(1998-05)No abstract available. -
Evaluation of low external input, sustainable farming practices for livestock farms in Cumberland County
(REAP-Cumberland, Shinimicas, Nova Scotia, 1993-06-01)Existing livestock systems in Cumberland Co. rely mainly on grass, clover and spring cereals for home grown forage and grain. There are well known limitations to these systems on the fragipan or basil till soils which ... -
Evolutionary and ecological feedbacks of the survival cost of reproduction
(2012-04)Arguably the most fundamental of trade-offs in life-history evolution is the increase in natural mortality resulting from sexual maturity and reproduction. Despite its central importance, this increase in mortality, a ... -
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An experimental test of offspring recognition in Western Bluebirds
(1995-10)No abstract available. -
Faba bean: an alternative to soybean in Nova Scotia, Canada.
(Borkhauser Verlag: Basel, Boston, Stuttgart., 1982-01-01)For farmers in Nova Scotia who wish to be self-sufficient in animal feed, and in N fertilizer, the faba bean offers a number of advantages over soybean: (i) no special processing is required; (ii) nodulation is generally ... -
Farms as ecosystems
(University Extension Press, University of Saskatchewan, Saskatoon, 1999)Organic farming provides ecosystem services as well as food. The weakest points of organic farming systems are limited use of livestock and declining genetic resources. Organic farming has special research and service ...