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Research, Policy and Practice

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Table 1 Changes in population trends and overall numbers for large mammal herbivores (grazers only) in Ngorongoro Crater following eviction of resident pastoralists in 1974

From: Natural conservationists? Evaluating the impact of pastoralist land use practices on Tanzania's wildlife economy

Species Trend before 1974 Trend after 1974 Overall difference in population before and after 1974
Wildebeest Increase Decline Decline
Buffalo Slight increase Sharp increase Increase
Hartebeest Increase Decline Increase
Thomson's gazelle Increase Decline Decline
Eland Constant Decline Decline
Zebra Constant Decline Decline
  1. Adapted from Runyoro et al. (1995).