New Mexico Project
Estimation of black bear densities in New Mexico using noninvasive genetic analyses
August 2011 - December 2016
Personnel
- James Cain, Principal Investigator
- Gary Roemer, Co-Principal Investigator
- William Gould, Co-Principal Investigator
- Matthew Gould, Student / Post Doc
Participating Agencies
- T & E, Inc
- Vermejo Park Ranch
- New Mexico Department of Game and Fish
One of the main challenges for wildlife management agencies is to set harvest levels that ensure for the long-term persistence of populations. Our primary objective is to estimate the abundance and density of black bears >1year of age using noninvasive sampling and mark-recapture estimation within two bear management zones currently used by New Mexico Department of Game and Fish to establish harvest objectives and manage black bears in New Mexico.
| Research Publications | Publication Date |
|---|---|
| Gould, M.J., W.R. Gould, J.W. Cain III, and G.W Roemer. 2019. Validating performance of occupancy models for estimating habitat use and predicting the distribution of highly-mobile species: a case study using the American black bear. Biological Conservation 234:28-36. | Download | March 2019 |
| Gould, M.J., J.W. Cain III, T.C. Atwood, L.E. Harding, H.E. Johnson, D.P. Onorato, F.S. Winslow, and G.W. Roemer. 2022. Pleistocene-Holocene vicariance not Anthropocene landscape change, explains the genetic structure of American black bear (Ursus americanus) populations in the American Southwest and northern Mexico. Ecology and Evolution 12:e9406 . https://doi.org/10.1002/ece3.9406 | October 2022 |
| Gould, M.J., J.W. Cain III, G.W. Roemer, W.R. Gould, and S. G. Liley. 2018. Density of American black bears in New Mexico. Journal of Wildlife Management 82:775-788. | Download | May 2018 |
| Technical Publications | Publication Date |
|---|---|
| Gould, M.J., J.W. Cain III, G.W. Roemer, and W.R. Gould. 2016. Estimating abundance and density of American black bears (Ursus americanus) in New Mexico using noninvasive genetic sampling coupled with spatially explicit capture-recapture methods. Report provided by the Cooperative Fish and Wildlife Research Unit Program. U.S. Department of Interior, Fish and Wildlife Service, Cooperator Science Series FWS/CSS-120-2016, National Conservation Training Center. | June 2016 |
| Gould, M.J., J.W. Cain III, G.W. Roemer, and W.R. Gould. 2015. Estimating abundance and density of American black bears (Ursus americanus) in New Mexico using noninvasive genetic sampling-based capture-recapture methods: Report on 2013 data collection and analysis for the southern Sangre de Cristo Mountains and an updated analysis for the northern Sangre de Cristo Mountains. Annual project report to New Mexico Department of Game and Fish. | October 2015 |
| Gould, M.J., J.W. Cain III, G.W. Roemer, and W.R. Gould. 2014. Estimating abundance and density of American black bears (Ursus americanus) in New Mexico using noninvasive genetic sampling-based capture-recapture methods: Report on 2012 data collection in the northern Sangre de Cristo Mountains. Annual project report to New Mexico Department of Game and Fish. | August 2014 |
| Theses and Dissertations | Publication Date |
|---|---|
| Gould, M.J.2019. Using genetic based methods to monitor American black bear populations in the American southwest. Ph.D. Dissertation. Department of Biology, New Mexico State University, Las Cruces. | May 2019 |
| Type | Citation | Publication Date |
|---|---|---|
| Data Release | Gould, M.J., Cain, J.W., III, Atwood, T.C., Harding, L.E., Johnson, H.E., Onorato, D.P., Winslow, F.C., and Roemer, G.W., 2022, Genetic structure of American black bear populations in the American Southwest and northern Mexico, 1994-2014: U.S. Geological Survey data release, https://doi.org/10.5066/P91COLPR. | September 2022 |