Results 1 to 10 of about 7,075,558 (291)
Using linkage to assess coverage of population estimates [PDF]
Objectives The Demographic Index (DI) comprises of five linked administrative datasets, used for population estimation. Current linkage methods are not ideal to utilise the power of this asset.
Josie Plachta
doaj +3 more sources
Using linkage to assess coverage of population estimates.
Objectives The Demographic Index (DI) comprises of five linked administrative datasets, used for population estimation. Current linkage methods are not ideal to utilise the power of this asset.
Sarah Collyer, Josie Plachta
doaj +1 more source
Estimating population size of red‐footed boobies using distance sampling and drone photography
The red‐footed booby (Sula sula) is one of the most common pantropical seabird species, but its populations have been declining in the Caribbean region and elsewhere.
Walter D. Espíndola +5 more
doaj +1 more source
Drones are becoming a common method for surveying wildlife as they offer an aerial perspective of the landscape. For waterbirds in particular, drones can overcome challenges associated with surveying locations not accessible on foot.
Shannon J. Dundas +3 more
doaj +1 more source
Estimation of the Population Total-Utilizing Estimators of the Population Size
The estimation of the population total when the population size is unknown is considered. Two estimators using Direct Capture- Recapture sampling technique and another two using Indirect Capture- Recapture sampling technique are proposed. These estimators are compared numerically.
Mohammad Fraiwan Al-Saleh +1 more
openaire +1 more source
Estimation of Population Percentiles [PDF]
Percentiles play an important part in descriptive statistics of continuous data, and their use is recommended for reference interval estimation.1 We have selected various methods for the calculation of percentiles based on recommendations in the literature or use in popular software, and evaluated the accuracy of the percentile calculated in the sample
Frank, Schoonjans +2 more
openaire +2 more sources
Estimation of a Ratio in the Finite Population [PDF]
Summary: Estimation of the ratio of two totals is considered, when a probability sample from the finite population is available. Four estimators of the ratio are examined. The first one -- called ``simple'' -- is the ratio of the Horvitz-Thompson estimators of totals; the second -- the ratio of two ratio estimators of totals; the third one -- the ratio
Danute Krapavickaite +1 more
openaire +3 more sources
Very high‐resolution satellite (VHR) imagery is a promising tool for estimating the abundance of wildlife populations, especially in remote regions where traditional surveys are limited by logistical challenges. Emperor penguins Aptenodytes forsteri were
Sara Labrousse +7 more
doaj +1 more source
Non-invasive, low-cost methods for censusing depleted fish populations are being prioritised among many jurisdictions worldwide. Collecting environmental DNA (eDNA) could offer one such option for augmenting fish population assessments.
Meaghan L. Rourke +7 more
doaj +1 more source
Comparison of HIV Prevalence Estimates from Antenatal Care Surveillance and Population-Based Surveys in Sub-Saharan Africa [PDF]
\ud In countries with generalized epidemics, national estimates of HIV prevalence levels and trends in the adult population are generally derived indirectly from surveillance of pregnant women attending selected antenatal care (ANC) clinics.
Mishra, Vinod +7 more
core +1 more source

