Date post: | 18-Jul-2015 |
Category: |
Science |
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¡ Important to our predator/prey monitoring program
¡ Start watching for population trends
¡ Interested in movement between islands in the Complex
¡ Effects of coyotes on other predator species
¡ Approx. 2 ft. at the shoulder, 20 to 45 lbs. ¡ Travel up to ~12 mi/day
§ Solo or in family groups § Mate for life
¡ Nocturnal ¡ Territorial ¡ Diet: Omnivorous
§ Rodents, rabbits, woodchucks, birds, deer, lizards, snakes, insects, and fruit
¡ Invasive ¡ Noninvasive
Noninvasive sampling techniques: ¡ Scent-‐tracking dogs ¡ Track plates ¡ Scat surveys ¡ Remote cameras ¡ Hair snares
¡ Choosing sites:
§ Looking for game trails, tracks, and other evidence
§ Google earth ¡ 12 hair snare sites total § 8 of these with cameras
¡ Sprayed posts with coyote urine every 4 days
¡ After initial spraying, checked posts for hair before spraying again § Spraying depended largely on weather
¡ Placed game cameras approx. 8 to 15 feet from hair snares
¡ ReconyxTM HyperFireTM’s HC550 White Flash LED Digital Game Camera § Flash range: 30 feet § Day-‐time color images § Took 3 instant pictures every time it sensed movement
¡ Recorded time, location of post, location of sample on post, how much hair per sample, and other notes i.e. noticeable tracks
¡ Collected samples with tweezers, placed into plastic bag
¡ Send samples to lab
¡ Challenges: § Weather matters § Very time consuming and labor intensive § Time constraint § Lack of samples § Coyotes are notoriously difficult to study
¡ Future goals: § Try different bait § Add more study sites § Extend data collection period
§ Continue researching survey techniques
§ Contact experts ¡ Continuation is
important
¡ Kendall K.C., McKelvey K.S. 2008. “Hair Collection.” Noninvasive Survey Methods for North American Carnivores. Ed. Long, R.A. et al. Washington D.C.: Island Press, 2009. 135-‐176.
¡ Gompper Et. Al. "A Comparison of Noninvasive Techniques to Survey Carnivore Communities in Northeastern North America." Wildlife Society Bulletin (2006): 1142-‐151.
¡ Hinton, Joseph W., Michael J. Chamberlain, and Frank T. Van Manen. "Long-‐Distance Movements of Transient Coyotes in Eastern North Carolina." The American Midland Naturalist 168.2 (2012): 281-‐88.
¡ Lawrence, Shannon E., and Paul R. Krausman. "Reactions of the Public to Urban Coyotes (Canis Latrans)." The Southwestern Naturalist 56.3 (2011): 404-‐09.
¡ Bogan, D. (2014). RISE OF THE EASTERN COYOTE. New York State Conservationist, 68 (6), 20-‐23
¡ http://media.oregonlive.com/pacific-‐northwest-‐news/photo/coyotejpeg-‐a8a247fae9c82811.jpeg ¡ http://farm6.static.flickr.com/5501/13848483303_de3cc99718_m.jpg ¡ http://yipps.files.wordpress.com/2011/04/img_130604051.jpg ¡ http://3.bp.blogspot.com/-‐zHdu3LgaKsY/Te2aEmR0tfI/AAAAAAAAFac/5zPy-‐s2OiAI/s1600/Coyote_scat.jpg ¡ http://rising.blackstar.com/wp-‐content/uploads/2012/06/Coyote-‐family1.jpg