Modeling habitat quality for a breeding population of Flammulated Owls (Otus flammeolus)<br />Quintana Baker, Brian Linkha...
Introduction<br />Bird populations depend on resources for breeding success<br />High vs. low habitat quality:<br />Availa...
Flammulated Owl Habitat Associations <br />Habitat associations poorly understood<br />Territories must:<br />Attract fema...
Hypotheses<br />Most important habitat parameters:<br />Area and/or percent of ponderosa pine (Pinus ponderosa) <br />Fore...
Study area<br />N<br /><br />Mosaic of forest types<br />Demographic parameters (1981-2006):<br />Occupancy<br />Reproduc...
Methods<br />Probability model <br />Territory focus<br />Extrapolated the empirical data<br />Relationships between habit...
Results<br />R2 = 53.2%<br />
Results<br />R2 = 35.8%<br />1<br />2<br />3<br />4<br />5<br />6<br />
Results <br />Index= (area of ponderosa pine)(forest structure of large trees)<br />High quality<br />Low quality<br />
Conclusion<br />Mature ponderosa pine habitat key to reproductive success<br />Greater requisite resources<br />Attract fe...
Further Research<br />Habitat associations of other populations throughout range?<br />Habitat quality at the population s...
Acknowledgments<br />Thank you to Brian Linkhart, Steven Janke, the Flam crew, the CC Biology Department, and the National...
Questions?<br />
Upcoming SlideShare
Loading in …5
×

Flammulated Owl Presentation

414 views

Published on

Flammulated Owls are a sensitive, indicator species. Modeling enabled me to extrapolate demographic data and discern meaningful relationships between specific vegetation parameters and the owls\' reproductive success.

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
414
On SlideShare
0
From Embeds
0
Number of Embeds
4
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Flammulated Owl Presentation

  1. 1. Modeling habitat quality for a breeding population of Flammulated Owls (Otus flammeolus)<br />Quintana Baker, Brian Linkhart and Steven Janke<br />
  2. 2. Introduction<br />Bird populations depend on resources for breeding success<br />High vs. low habitat quality:<br />Availability of requisite resources<br />Reproductive rates vs. mortality rates<br />Difficult to distinguish habitat quality<br />Empirical data<br />Spatial scales<br />Modeling is a helpful tool<br />
  3. 3. Flammulated Owl Habitat Associations <br />Habitat associations poorly understood<br />Territories must:<br />Attract females<br />Provide all requirements for breeding pair & offspring<br />Habitat parameters which provide resources?<br />Goal: Index of breeding habitat quality <br />
  4. 4. Hypotheses<br />Most important habitat parameters:<br />Area and/or percent of ponderosa pine (Pinus ponderosa) <br />Forest structure of large trees<br />Most important demographic parameters:<br />Fecundity<br />Total fledgling production<br />Optimal habitat quality index<br />
  5. 5. Study area<br />N<br /><br />Mosaic of forest types<br />Demographic parameters (1981-2006):<br />Occupancy<br />Reproduction<br />Habitat parameters:<br />Forest type<br />Forest structure <br />Tree density<br />Crown volume<br />Hotel Gulch<br />510 ha<br />2,500-3,000 m<br />
  6. 6. Methods<br />Probability model <br />Territory focus<br />Extrapolated the empirical data<br />Relationships between habitat parameters and demographic parameters<br />Index of habitat quality developed <br />
  7. 7. Results<br />R2 = 53.2%<br />
  8. 8. Results<br />R2 = 35.8%<br />1<br />2<br />3<br />4<br />5<br />6<br />
  9. 9. Results <br />Index= (area of ponderosa pine)(forest structure of large trees)<br />High quality<br />Low quality<br />
  10. 10. Conclusion<br />Mature ponderosa pine habitat key to reproductive success<br />Greater requisite resources<br />Attract females, more nesting events<br />Fire-maintained forests<br />
  11. 11. Further Research<br />Habitat associations of other populations throughout range?<br />Habitat quality at the population scale?<br />Utilize modeling <br />Fill gaps in data<br />Long-term patterns<br />More effective research<br />
  12. 12. Acknowledgments<br />Thank you to Brian Linkhart, Steven Janke, the Flam crew, the CC Biology Department, and the National Science Foundation <br />
  13. 13. Questions?<br />

×