Changes in the Ruaha elephant population caused by poaching
- 1 December 1991
- journal article
- Published by Wiley in African Journal of Ecology
- Vol. 29 (4) , 289-294
- https://doi.org/10.1111/j.1365-2028.1991.tb00466.x
Abstract
Summary: Found‐ivory records complement the information provided by aerial surveys to illustrate changes in the Ruaha elephant population between 1973 and 1988. Intense poaching in the late 1970s and early 1980s reduced the numbers of elephants by about 60% and also distorted the age structure of the survivors. There are now few cows > 34 years and few bulls > 16 years. Footprint measurements in 1989 showed a lack of calves aged 2 to 9 years but many new‐born infants.Keywords
This publication has 6 references indexed in Scilit:
- African elephants: population trends and their causesOryx, 1987
- Inferring the sex and age of African elephants from tusk measurementsBiological Conservation, 1986
- Age Estimation and Population Age Structure of Elephants from Footprint DimensionsThe Journal of Wildlife Management, 1983
- The Numbers and Distribution Patterns of Large Mammals in the Ruaha- Rungwa Area of Southern TanzaniaJournal of Applied Ecology, 1982
- A note on elephant mortality in Ruaha National Park, TanzaniaAfrican Journal of Ecology, 1982
- The numbers and distribution of large mammals in Ruaha National Park, Tanzania*African Journal of Ecology, 1975