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What are “camera traps”?

What are “camera traps”?. Most camera traps sense heat and motion. Cheapest are under $100 Expensive ones can send photos to your computer via wireless technology (see Buckeye Cameras). What can you learn from CAMERA TRAPS?. Purpose:. Used by hunters to scout an area

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What are “camera traps”?

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  1. What are “camera traps”?

  2. Most camera traps sense heat and motion • Cheapest are under $100 • Expensive ones can send photos to your computer via wireless technology (see Buckeye Cameras)

  3. What can you learn from CAMERA TRAPS?

  4. Purpose: Used by hunters to scout an area What could hunters tell from this photo?

  5. Purpose: Used by hunters to scout an area What could hunters tell from this photo?

  6. Purpose: Used by hunters to scout an area What could hunters tell from this photo?

  7. Purpose: Used by scientists to document species First WOLVERINE documented in CO since 1919

  8. Purpose: Used by scientists to document species First OKAPI in Congo in 50 years

  9. Purpose: Used by scientists to document species First JAGUAR in Panama since 1920s

  10. First bobcat in Honeoye Valley

  11. Purpose: Used by naturalists, amateurs, etc. to just see what is out there…..

  12. NOVEMBER 1st, 2009

  13. NOVEMBER 1st, 2009 My camera, seneca falls

  14. NOVEMBER 1st, 2009 My camera, seneca falls

  15. NOVEMBER 1st, 2009 My camera, seneca falls Dad’s camera, wayland

  16. NOVEMBER 1st, 2009 My camera, seneca falls Dad’s camera, wayland

  17. In my CON 102 class, we will use pics to show: • How to identify species • Compare sizes of different species • Behavior • Habitat • Other natural history: How early do bucks begin to grow their antlers? When do fawns lose their spots?

  18. Species?

  19. Compare Coyote toGray Fox

  20. Camera trap considerations • Fewer expensive models or more cheaper ones? • Incandescent flash or IR? • Video? • Trigger speed! • Also: • Ease of use • Durability • Cost of batteries

  21. Protocol • Begin from an existing protocol • Consider allowing students to assist in modifications both before and after use

  22. Things that can go wrong • Camera left turned off • Date and/or time incorrect • Weak batteries • SD card inserted improperly • Camera not closed or vegetation in seal • Aimed improperly • Growing vegetation impedes operation • Theft • Critter troubles

  23. Two basic measures • Effort: measured in trap-nights • Camera traps can make multiple captures • Further refinements (trap-hours) may be useful in certain circumstances • Seven cameras for one night and one camera for seven nights produce the same effort, yet are very different. How? • Latency to first detection (LTD): measured in 24-hour days • Useful in determining how long sets should remain before relocation

  24. Effort • calculating effort

  25. Getting students comfortable with the cameras • Predict the species we will capture • Work together to create a plan to maximize the number of species captured (or some other goal) • Provide a variety of scents and baits or other novel items (such as a feather) • Allow students to sign out cameras for use off campus • Take advantage of seasonal changes in animal behavior (dens, food sources, mating behavior)

  26. Getting students comfortable with the cameras • “Tell me a story”… • First, students need to think of photos as data. • It is easy for them to see dates, times and number of captures as data, but it is much harder to see the photos themselves as data. So I ask them to look at their images and find a story to tell… • Can we uncover any stories today?

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