A comparison of methods used to count the elephant population of the Addo Elephant National Park, South Africa

Autor:	M. H. Knight, A. J. Hall-Martin, A. M. Whitehouse
Rok vydání:	2001
Předmět:	Population estimate education.field_of_study Geography National park Population Forestry education Ecology Evolution Behavior and Systematics
Zdroj:	African Journal of Ecology. 39:140-145
ISSN:	0141-6707
Popis:	Evaluation of alternative techniques used to estimate elephant population sizes is important in order to assess the accuracy of the results obtained, upon which management decisions may be based. Data from annual helicopter surveys carried out in the Addo Elephant National Park (1978–97) are compared with registration counts obtained from intensive ground surveys in which all elephants within the park are individually known. On average, total population size estimated in aerial surveys is 8.0% lower than registration counts (n1997 = 251), aerial calf (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1d1ff8924915be98fd47b5035b004a71 https://doi.org/10.1046/j.1365-2028.2000.00285.x Zobrazit plný text záznamu Plný text