Title:

KAZA Elephant Survey 2022, Volume I: Results and Technical Report

Publication Year:
2023
Abstract:

Following several years of preparation, the KAZA Elephant Survey (2022) commenced on 22 August 2022 and ran until 28 October 2022. The primary objective of the survey was to obtain a relatively precise and accurate estimate of the number of African savanna elephants (hereafter elephants) in the Kavango Zambezi Transfrontier Conservation Area (KAZA TFCA), by synchronising data collection, particularly in areas of transboundary elephant movement. Secondary objectives included estimating populations of elephant carcasses and other large herbivores (both wild and domestic), as well as recording their spatial distribution. The results presented in this report include maps and tables illustrating the spatial distribution and abundance of the surveyed species, as well as information on survey execution and compliance with standards. The survey area covered 60% of the KAZA TFCA. It was divided into 179 strata, sampled during 195 flights using seven fixed-wing aircraft. Systematic transect sampling was the primary method used, while stratified block sampling was employed in two strata with rugged topography (i.e., Matusadona Hills and Kanyati Highlands, in Sebungwe, Zimbabwe). Additionally, three reconnaissance flights were conducted in areas considered to have the potential to support elephants. The overall sampling intensity was 6.9%, ranging from 2.6% to 56.0% between strata, with higher intensities where higher densities of elephants were expected (based on previous survey data). A total of 398 hours spread over 68 days were spent collecting data on 2404 transects, totalling 67,390 km in length. Overall, the mean height above ground level (AGL) on transect was 91.8 m (SD = 6.5) with a mean ground speed on transect of 171.5 km.hr -1 (SD = 5.8), resulting in a search effort of 1.12 minutes.km-2. The survey met the percentage relative precision (PRP) target of ≤10% for the elephant population estimate and adhered well to the recommended CITES MIKE Aerial Survey Standards, with few deviations as documented in the report. The survey was effectively synchronised across international boundaries within a sufficiently narrow time frame, ensuring a reliable assessment of this transboundary population

Place:
Kasane, Botswana
Publisher:
KAZA TFCA Secretariat
Item Type:
Report
Language:
en

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