Geostatistical models using remotely-sensed data predict savanna tsetse decline across the interface between protected and unprotected areas in Serengeti, Tanzania

The Journal of Applied Ecology
Jennifer S LordMichelle C Stanton

Abstract

Monitoring abundance is essential for vector management, but it is often only possible in a fraction of managed areas. For vector control programmes, sampling to estimate abundance is usually carried out at a local-scale (10s km2), while interventions often extend across 100s km2. Geostatistical models have been used to interpolate between points where data are available, but this still requires costly sampling across the entire area of interest. Instead, we used geostatistical models to predict local-scale spatial variation in the abundance of tsetse-vectors of human and animal African trypanosomes-beyond the spatial extent of data to which models were fitted, in Serengeti, Tanzania.We sampled Glossina swynnertoni and Glossina pallidipes >10 km inside the Serengeti National Park (SNP) and along four transects extending into areas where humans and livestock live. We fitted geostatistical models to data >10 km inside the SNP to produce maps of abundance for the entire region, including unprotected areas.Inside the SNP, the mean number of G. pallidipes caught per trap per day in dense woodland was 166 (± 24 SE), compared to 3 (±1) in grassland. Glossina swynnertoni was more homogenous with respective means of 15 (±3) and 15 (±8)....Continue Reading

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Citations

Jan 24, 2019·Tropical Medicine and Infectious Disease·John B MaloneJeffrey C Luvall
Jan 7, 2020·Acta Tropica·Jill de GierWeining Zhao
Jun 7, 2021·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Faith I EbhodagheMichael N Okal
Jun 20, 2021·Medical and Veterinary Entomology·S Mihok, D A Carlson
Dec 7, 2021·PLoS Neglected Tropical Diseases·Albert MugenyiPeter M Atkinson
Dec 16, 2021·PLoS Neglected Tropical Diseases·Richard Gashururu SDaniel K Masiga

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Methods Mentioned

BETA
PCR

Software Mentioned

geostatsp
R
Earth

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