Power and precision of replicated helicopter surveys in mixed bushveld

It is well known that aerial game counts in South Africa are often applied in a non-standardised, unreplicated fashion. They contribute to poor management decisions based on their results as they may be subject to large statistical Type I and II errors. Replicate counts of large herbivores were cond...

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Bibliographic Details
Main Authors: B.K. Reilly, R.H. Emslie
Format: Article
Language:English
Published: AOSIS 1998-07-01
Series:Koedoe: African Protected Area Conservation and Science
Subjects:
Online Access:https://koedoe.co.za/index.php/koedoe/article/view/245
Description
Summary:It is well known that aerial game counts in South Africa are often applied in a non-standardised, unreplicated fashion. They contribute to poor management decisions based on their results as they may be subject to large statistical Type I and II errors. Replicate counts of large herbivores were conducted in a 8 500 ha sample site in the Loskop Dam Nature Reserve in July 1991. These data were used to estimate precision of the counts and estimate statistical power to detect population changes for different combinations of replications and significance levels.
ISSN:0075-6458
2071-0771