Document


Title

Effects of grassland burning on the savanna hare-predator relationships in Uganda
Document Type: Journal Article
Author(s): Asaph A. Ogen-Odoi; T. G. Dilworth
Publication Year: 1984

Cataloging Information

Keyword(s):
  • Africa
  • animal species diversity
  • birds
  • Bubo africanus
  • escape cover
  • fire
  • fire management
  • grass fire
  • grassland
  • grazing
  • Lepus crawshayi
  • mosaic
  • population density
  • population ecology
  • post-fire recovery
  • predation
  • predator-prey relationships
  • predators
  • pyric herbivory
  • savanna burning
  • savanna hare
  • Savannah River site
  • Uganda
  • wildlife management
Region(s):
  • International
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 18021
Tall Timbers Record Number: 9425
TTRS Location Status: In-file
TTRS Call Number: Fire File DDW
TTRS Abstract Status: Okay, Fair use, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.

Description

A modified line transect census technique was employed to monitor incidences of savanna hares (Lepus crawshayi de Winton) and large- and medium-sized predators in the pre- and post-burn habitats. Hare and medium-sized predator incidences increased significantly following burning with over 300 and 124% increases by hares and predators, respectively. A highly significant inverse relationship existed between the nightly incidences of hares and medium-sized predators but no such relationship was observed with large predators. The incidences of large predators apparently were unaffected by the habitat modification by fire, although two species disappeared in the post-burn conditions. Nine hares were preyed upon in 34 nights, out of these only one occurred before the burn. Birds of prey exerted more predatory pressure than other predators in the area. The ecological implications of grassland fires on hare habitats and subsequent influence on hare population response and predation, are outlined.

Online Link(s):
Citation:
Ogen-Odoi, Asaph A.; Dilworth, T. G. 1984. Effects of grassland burning on the savanna hare-predator relationships in Uganda. African Journal of Ecology 22(2):101-106.