The effects of forest fire on the nesting success of the Red-knobbed Hornbill Aceros cassidix
Document Type: Journal Article
Author(s): A. J. Cahill; J. S. Walker
Publication Year: 2000

Cataloging Information

  • fire management
  • habits and behavior
  • habits and behavior
  • heat effects
  • Indonesia
  • Indonesia
  • nesting
  • nesting
  • nongame birds
  • nongame birds
  • population density
  • reproduction
  • smoke effects
  • wildfires
  • wildfires
  • wildlife habitat management
  • International
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 49673
Tall Timbers Record Number: 26108
TTRS Location Status: Not in file
TTRS Call Number: Not in File
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.


We assessed the impact of forest fire on the nesting success of the endemic Red-knobbed Hornbill Aceros cassidix in north Sulawesi, Indonesia. Pre- and post-fire breeding activity was monitored at 60 nest trees. Low rainfall and possible reductions in fruit abundance did not appear to have an effect on initial nest uptake or on subsequent chick production at non-burnt nests, which were comparable to previous years. However, there was an adverse effect on productivity at nests that directly experienced fire and the accompanying heat and smoke in the vicinity, resulting in a post-fire nest success (62%) that was significantly lower than in previous years (78.6-80%). Population recruitment dropped by an estimated 47% to 0.17 fledglings/breeding pair. Our data suggest that, given the reproductive profile of this species and the ability of fire to reinforce its own negative effects on forest habitats, Red-knobbed Hornbill populations may be vulnerable to the potential effects of repeated fires. © Birdlife International 2000.

Cahill, A. J., and J. S. Walker. 2000. The effects of forest fire on the nesting success of the Red-knobbed Hornbill Aceros cassidix. Bird Conservation International, v. 10, no. 2, p. 109-114.