Traits that may be responsible for reproductive success and survival at small population densities and sizes include mate finding cues (pheromones and vocal/visual signals), dispersal/aggregation behavior, habitat preferences, mating synchronicity, and gamete morphology and performance (see Courchamp et al. 2008 for detailed studies).
The lower frequency of anxiety-depression found in Brazilian North-Northeast, a region with smaller population density, reinforces that hypothesis.
"The smaller size and low population density of grizzly bears in the Arctic," Rode said, "provides a clear indication of the nutritional limitations of onshore habitats for supporting large-bodied polar bears in meaningful numbers".
But it does boast one of the world's smallest population densities.
With Hampton County having one of the state's smallest population densities, the lack of super stores is to be expected [ 31].
As pointed out by Cardillo et al. [20], small geographic ranges, low population densities, and low litter sizes are traits that limit the maximum population size a species can attain.
The peculiar attribute for enlistment of communities included low population densities, small settlement size, low infrastructure development, and lack of access to services.
The best evidence on this comes from more modern human groups living in small-scale societies with low population densities: the Inuit, Bambuti, Kung Bushmen and others.
The probability of endemicity class membership were also generally moderate to high across the country with the exception of small pockets of the low population-density areas of the northern districts where there was relatively sparse distribution of input data in time and space.
The numbers at the zonal level were determined by the small ruminants' population density, geographic distribution and frequency of reported PPR cases.
Negative binomial regression was used to examine the relationship between incidence rates and the Townsend deprivation score (and its component variables) and small-area population density.
