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Zeitschrift für Jagdwissenschaft

, Volume 48, Supplement 1, pp 140–147 | Cite as

Military jet activity and Sonoran pronghorn

  • P. R. Krausman
  • Lisa K. Harris
XXVth IUGB Congress Effects of Human Disturbance on Wildlife

Summary

Forty percent of the habitat for the endangered Sonoran pronghorn (Antilocapra americana sonoriensis) in the United States is on the Barry M. Goldwater Range (BMGR), a bombing and gunnery range located in southwestern Arizona, USA. Wildlife and land managers have expressed concerns that military aircraft activity may be detrimental to Sonoran pronhom. We observed the response of Sonoran pronghorn to military jet activity from 4 vantage points, BMGR from February 1998 to June 2000. We obtained behavioral observations on 172 days and obtained 44,773 observation events (i.e., 1 observation / 30 seconds). Pronghorn were exposed to 109 direct military overflights, but only 6 were <305 m above ground level. Overall, behavior of males and females was not significantly different and the presence of military aircraft did not cause changes in behavior.

Key words

activity Antilocapra americana sonoriensis Arizona military jets 

Militärischer Düsenflugbetrieb und Sonora-Gabelböcke

Zusammenfassung

Vierzig Prozent des Lebensraums des gefährdeten Sonora-Gabelbockes (Antilocapra americana sonoriensis) in den USA liegen auf dem Barry M. Goldwater Range (BMGR), einem militärischen Schiessplatz und Bombenzielgeländc in Südwest-Arizona. Wildbiologen und Landespfleger sind darüber besorgt, dass sich der militärische Flugbetrieb nachteilig auf die Gabelböcke auswirken könnte. Von Februar 1998 bis Juni 2000 beobachteten wir von 4 Beobachtungspunkten auf dem BMGR aus die Reaktion von Sonora-Gabelböcken auf militärischen Düsenflugbetrieb. Die Verhaltensbeobachtungen fanden an 172 Tagen statt, und es wurden 44733 Einzelbeobachtungen gesammelt (1 Bobachtung/30 Sekunden). Die Gabelböcke waren 109 direkten überflügen durch Militärflugzeuge ausgesetzt, wovon allerdings nur 6 in weniger als 305 m Höhe über dem Boden stattfanden. Insgesamt unterschied sich das Verhalten von Männchen und Weibchen nicht signifikant voneinander, und die Anwesenheit von Militärflugzeugen rief keine Verhaltensänderungen hervor.

Schlüsselwörter

Aktivität Antilocapra americana sonoriensis Arizona Militärflugzeuge 

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Copyright information

© Blackwell Verlag GmbH 2002

Authors and Affiliations

  • P. R. Krausman
    • 1
  • Lisa K. Harris
    • 1
  1. 1.The University of ArizonaTucsonUSA

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