Video Surveillance to Assess Highway Underpass Use by Elk in Arizona

We used integrated video systems to compare wildlife use of 2 bridged wildlife underpasses (UPs) on a reconstructed highway in central Arizona, USA, from September 2002 to September 2005. Both UPs opened into the same riparian–meadow complex, were situated 90% of the animals we recorded on videotape...

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Veröffentlicht in:	The Journal of wildlife management 2007-04, Vol.71 (2), p.637-645
Hauptverfasser:	DODD, NORRIS L, GAGNON, JEFFREY W, MANZO, AMANDA L, SCHWEINSBURG, RAYMOND E
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal behavior Animals Arizona behavior Cervus elaphus Cervus elaphus nelsoni Confidence intervals Conservation biology Design Elk Elks Federal funding highway impact Highways Management Managers Permeability Summer Surveillance Techniques and Technology Underpasses video surveillance Wildlife Wildlife conservation Wildlife ecology Wildlife management wildlife passage Winter
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Beschreibung
Zusammenfassung:	We used integrated video systems to compare wildlife use of 2 bridged wildlife underpasses (UPs) on a reconstructed highway in central Arizona, USA, from September 2002 to September 2005. Both UPs opened into the same riparian–meadow complex, were situated 90% of the animals we recorded on videotape, with 3,708 elk in 1,266 groups recorded at the 2 UPs. We used multiple logistic regression to predict the probability of UP use by elk, incorporating the combined effects of UP, season, and year. Season had the greatest effect on UP use, with the probability of UP use in summer (0.81) higher than in winter (0.58), when migratory elk less habituated to the UPs were present. A pattern of high summer (>0.80) and low winter passage rates (
ISSN:	0022-541X 1937-2817
DOI:	10.2193/2006-340