Importance of observer experience in classifying mountain sheep

Wildlife Society Bulletin

Volumn 26, Issue 4, 1998, Pages 877-880

  Bleich, Vernon C ^a,b,c,d  

^a CALIFORNIA DEPARTMENT OF FISH AND GAME   (United States)

^b UNIVERSITY OF ALASKA FAIRBANKS   (United States)

^c UAF   (United States)

^d CDFG Round Valley Project   (United States)

Author keywords

Mountain sheep; Ovis canadensis; Volunteers

Indexed keywords

AGE DETERMINATION; OBSERVATIONAL METHOD; SEX DETERMINATION; SHEEP; SURVEYING;

OVIS ARIES; OVIS CANADENSIS; VERTEBRATA;

EID: 0032957810     PISSN: 00917648     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (14)

1. BILDSTEIN, K. L. 1998. Long-term counts of migrating raptors: a role for volunteers in wildlife research. Journal of Wildlife Management 62:435-445.
2. BLEICH, V. C. 1982. An illustrated guide to aging the lambs of mountain sheep. Desert Bighorn Council Transactions 26:59-62.
3. BLEICH, V. C., L. J. COOMBES, AND G. W. SUDMEIER. 1982. Volunteer participation in California wildlife habitat management projects. Desert Bighorn Council Transactions 26:56-58.
4. BODIE, W. L., E. O. GARTON, E. R. TAYLOR, AND M. MCCOY. 1995. A sightability model for bighorn sheep in canyon habitats. Journal of Wildlife Management 59:832-840.
5. DEFORGE, J. R. 1980. Population biology of desert bighorn sheep in the San Gabriel Mountains of California. Desert Bighorn Council Transactions 24:29-32.
6. FREILICH, J. E., AND E. L. LARUE, JR. 1998. Importance of observer experience in finding desert tortoises. Journal of Wildlife Management 62:590-596.
7. GEIST, V. 1968. On the interrelation of external appearance, social behaviour and social structure of mountain sheep. Zeitschrift für Tierpsychologie 25:199-215.
8. GEIST, V. 1971. Mountain sheep. A study in behavior and evolution. University of Chicago Press, Chicago, Illinois.
9. HOLL, S. A., AND V. C. BLEICH. 1983. San Gabriel mountain sheep: biological and management considerations. U.S. Forest Service, San Bernardino National Forest, San Bernardino, California.
10. KEPLER, C. B., AND J. M. SCOTT. 1981. Reducing bird count variability by training observers. Studies in Avian Biology 6:366-371.
11. RUBIN, E. S., W. M. BOYCE, M. C. JORGENSEN, S. G. TORRES, C. L. HAYES, C. S. O'BRIEN, AND D. A. JESSUP. 1998. Distribution and abundance of bighorn sheep in the peninsular ranges, California. Wildlife Society Bulletin 26:539-551.
12. SMITH, B. L. 1988a. Criteria for determining age and sex of American mountain goats. Journal of Mammalogy 69:395-402.
13. SMITH, B. L. 1988b. Simulated field test of age and sex classification criteria for mountain goats. Biennial Symposium of the Northern Wild Sheep and Goat Council 6:204-209.
14. ZAR, J. H. 1984. Biostatistical analysis. Prentice-Hall, Englewood Cliffs, New Jersey.