Using form analysis techniques to improve photogrammetric mass-estimation methods

Marine Mammal Science

Volumn 24, Issue 1, 2008, Pages 147-158

  Proffitt, Kelly M ^a   Garrott, Robert A ^a   Rotella, Jay J ^a   Lele, Subhash ^b  

^a MONTANA STATE UNIVERSITY   (United States)

^b UNIVERSITY OF ALBERTA   (Canada)

Author keywords

Body mass; Elliptical Fourier analysis; Leptonychotes weddellii; Shape analysis; Weddell seal

Indexed keywords

BODY MASS; COMPARATIVE STUDY; ESTIMATION METHOD; MODELING; MORPHOMETRY; PHOTOGRAMMETRY; SHAPE ANALYSIS;

SOUTHERN OCEAN; WEDDELL SEA;

ANIMALIA; LEPTONYCHOTES WEDDELLII; MAMMALIA;

EID: 39049126469     PISSN: 08240469     EISSN: 17487692     Source Type: Journal    
DOI: 10.1111/j.1748-7692.2007.00171.x     Document Type: Article

References (22)

1. Agler, B. A., R. L. Schooley, S. E. Frohock, S. K. Katona and I. E. Seipt. 1993. Reproduction of photographically identified fin whales, Balaenoptera physalus, from the Gulf of Maine. Journal of Mammalogy 74 : 557 587.
2. Bell, C. M., M. A. Hindell and H. R. Burton. 1997. Estimation of body mass in the southern elephant seal, Mirounga leonina, by photogrammetry and morphometrics. Marine Mammal Science 13 : 669 682.
3. Castellini, M. A., and D. G. Caulkins. 1993. Mass estimates using body morphology in Stellar's sea lions. Marine Mammal Science 9 : 48 54.
4. Castellini, M. A., and G. L. Kooyman. 1990. Length, girth, and mass relationships in Weddell seals (Leptonychotes weddellii). Marine Mammal Science 6 : 75 77.
5. Daegling, D. J., and W. L. Jungers. 2000. Elliptical Fourier analysis of symphyseal shape in great ape mandibles. Journal of Human Evolution 39 : 107 122.
6. Defran, R. H., D. W. Weller, D. L. Kelly and M. A. Espinosa. 1999. Range characteristics of Pacific Coast bottlenose dolphins (Tursiops truncatus) in the Southern California Bight. Marine Mammal Science 15 : 381 393.
7. Ferson, S. F., F. J. Rohlf and R. K. Koehn. 1985. Measuring shape variation of two-dimensional outlines. Systematic Zoology 34 : 59 68.
8. Forcada, J., and A. Aguilar. 2000. Use of photographic identification in capture-recapture studies of Mediterranean monk seals. Marine Mammal Science 16 : 767 793.
9. Haley, M. P., C. J. Deutsch and B. J. Le Boeuf. 1991. A method for estimating mass of large pinnipeds. Marine Mammal Science 7 : 157 164.
10. Hill, S. E. 1987. Reproductive ecology of Weddell seals (Leptonychotes weddellii) in McMurdo Sound, Antarctica. Ph.D. thesis, University of Minnesota, St. Paul, MN. 106 pp.
11. Ireland, D., R. A. Garrott, J. Rotella and J. Banfield. 2006. Development and application of a mass estimation method for Weddell seals. Marine Mammal Science 22 : 361 378.
12. Karczmarski, L., P. Winter, V. G. Cockcroft and A. McLachlan. 1999. Population analyses of Indo-Pacific humpback dolphins Sousa chinensis in Algoa Bay, Eastern Cape, South Africa. Marine Mammal Science 15 : 1115 1123.
13. Katona, S. K., and H. P. Whitehead. 1981. Identifying humpback whales using their natural markings. Polar Record 20 : 439 444.
14. Kuhl, F., and C. Giardina. 1982. Elliptical Fourier features of a closed contour. Computer Vision, Graphics, and Image Processing 18 : 236 258.
15. Lestrel, P. 1989. Method for analyzing complex two-dimensional forms: Elliptical Fourier functions. American Journal of Human Biology 1 : 149 164.
16. Neter, J., M. H. Kutner, C. J. Nachtsheim and W. Wasserman. 1996. Applied linear statistical models, 4th edition. WCB McGraw-Hill, Boston, MA.
17. Proffitt, K. M., R. A. Garrott, J. J. Rotella and J. Banfield. 2007a. The importance of considering prediction variance in analyses using photogrammetric mass estimates. Marine Mammal Science 23 : 65 76.
18. Proffitt, K. M., R. A. Garrott, J. Rotella and K. E. Wheatley. 2007b. Environmental and senescent related variations in Weddell seal body mass: Implications for age-specific reproductive performance. Oikos 116 : 1683 1690.
19. Rohlf, F., and J. Archie. 1984. A comparison of Fourier methods for the description of wing shape in mosquitos (Diptera: Culicidae). Systematic Zoology 33 : 302 317.
20. Rugh, D. J., H. W. Braham and G. W. Miller. 1992. Methods for photographic identification of bowhead whales, Balaena mysticetus. Canadian Journal of Zoology 70 : 617 624.
21. Wheatley, K. E., C. J. Bradshaw, C. Davis, R. G. Harcourt and M. A. Hindell. 2006. Influence of maternal mass and condition on energy transfer in Weddell seals. Journal of Animal Ecology 75 : 724 733.
22. Würsig, B., and T. A. Jefferson. 1990. Methods of photo-identification for small cetaceans. Report of the International Whaling Commission (Special Issue 12) : 43 52.