The species that exhibited density declines over the study area were larger, ground-nesting species.Sammler, J ESammler, J. E. 2001 . Population trends of tundra-nesting birds in Churchill, Manitoba: potential effects of increasing Lesser Snow Goose ( Chen caerulescens caerulesce...
Local density estimates a range of 13–31 owls/km2 in Canada (Manitoba, Alberta, Saskatchewan and British Columbia) and the USA (Arizona, California, Colorado, Idaho, Iowa, Kansas, Minnesota, Montana, Nebraska, New Mexico, North and South Dakota, Oklahoma, Oregon, Texas, Utah and ...
Aboriginal people are a sizable minority in some provinces – for example, in the western provinces of Manitoba and Saskatchewan, they constitute 15% of the population. It is in the North, however, that Aboriginal people are a significant segment of the population – 35% of the population of...
These include external factors such as host population density and geographical location, and intrinsic factors such as genetic constitution, life history, and other conditions which may vary between individuals and host populations. Most of these studies have been conducted on rodents7–9. Many have...
Thus, the likelihood of sustaining an injury from a pool drowning and/or recreational activity would increase with individuals of a higher SES [9]. Conversely, pedestrian and/or motor vehicle collisions tend to be higher among those residing in lower SES communities, where the population density ...
These include external factors such as host population density and geographical location, and intrinsic factors such as genetic constitution, life history, and other conditions which may vary between individuals and host populations. Most of these studies have been conducted on rodents7–9. Many have...
Density-dependent Prenatal Androgen Exposure as an Endogenous Mechanism for the Generation of Cycles in Small Mammal Populations Small mammal populations exhibit cyclic fluctuations in their population densities. Several hypotheses regarding the mechanisms underlying these population... LG Cowell,LB Crowder,TB...
Each point represents a single cage experiment (i.e. 6 replicates for each treatment), with the average number of progeny indicated (horizontal lines). Progressive increases in sterile male seeding density produced significantly greater reductions in the number of progeny produced (ANOVA, P < ...
(Figs.2and3) across a genome-wide phylogeny ofAe. tauschiiand a worldwide collection of 28 wheat landraces17. The absence of the alleles promoting disease resistance, more spikelets and higher trichome density in the wheat landraces for the new candidate genes suggest that they were not ...
Methods The study setting is British Columbia, the mountainous most western province in Canada with a population of just over 4.5 million scattered over just under 950,000 square kms and a population density of 4.7 per square kilometre [19,20]. Of the approximately 42,000 births recorded ...