Traditional means for determining mosquito host-preferences in the field are to estimate the proportion of blood meals on certain hosts [1] or, more specifically, to calculate a feeding index, where the proportion of blood meals acquired from a specific host is assessed in relation to the abundance of that host within the community of potential hosts [2], [3].
The NEEDS principle described harvesters' effort in relation to the abundance or availability of the target plant or animal species.
In relation to the control, abundance of six out of thirteen bird species was significantly reduced in at least one of the three treatments.
In a split-plot experimental design, the effects of grazing pressure and aspect were examined in relation to the relative abundance, species richness, evenness and composition of the collembolan community.
To verify the use of Eucalyptus spp. in the pollinic diet of Apis mellifera L. and Melipona obscurior Moure, we evaluated the proportion of pollen that both bee species collected from Eucalyptus spp. in relation to the relative abundance of Eucalyptus spp. in the study areas.
Logging, fire, fox (Vulpes vulpes) control and forest fragmentation were investigated in relation to the relative abundance of ngwayir at 90 sites within an area of 285,000 ha east of Manjimup; the location of the last remaining substantial population of ngwayir in jarrah forest.
In a review of the pattern of population decline in scaup (including both lesser and greater (A.marila) scaup) for the period 1955 1997, Boreal populations have shown a steady decline especially over 20 years (1978 1997) whereas Prairie-Parkland populations have fluctuated in relation to the total abundance of May pond habitat [9].
In the given experimental conditions, the avUCP-dependent proton leak clearly varied in relation to the relative abundance of avUCP mRNA in skeletal muscle, i.e., increased in muscle mitochondria from CA and T3-treated ducklings compared to TN controls, and was absent in muscle mitochondria from hypothyroid ducklings and in all liver mitochondrial preparations.
In order to investigate potential changes in gene abundances representing different N-cycling guilds in relation to the changes in abundance of the overall microbial communities, we determined the relative abundance of each functional gene as a percentage of the total number of 16S rRNA genes (bacterial or archaeal, as relevant) (Fig. 2).
The affiliations of clone sequences from each soil sample are shown in Table 2 in relation to the percentages of abundance belonging to each phylum or class of the domain Bacteria.
Fig. 3 Distribution of individual abundance in relation to the distance to the propagule sources.
