Mensural discrimination between sympatric Peromyscus leucopus and P. maniculatus in southern Illinois

• Autorzy: Sternburg J. E. , Feldhamer G.A.
• Języki publikacji: EN

Abstrakty

EN

A total of 383 Peromyscus was collected from southern Illinois to determine morphological characteristics useful in identifying individuals as either P. leucopus (Rafinesque, 1818) or P. maniculatus (Wagner, 1845). Polyacrylamide gel electropho­resis of salivary amylase was used to positively identify all specimens. No univariate morphological character accurately discriminated between the two species because of a high degree of intraspecific variation. Stepwise discriminant function analysis of external characters correctly classified 97.9% of subadults to species. The most important external character was the tail length/body length ratio. This ratio was also the most important factor in discrimination of adults; the function correctly classified 98.6% of individuals. Considering skull measurements of adults, 9 cranial characters were needed to differentiate between the two species, with a correct classification of 98.9%. For old adults, all specimens were classified correctly using 5 cranial charac­ters. There was no fast, easy, accurate method to discriminate between these species 100% of the time in the fieid.

Słowa kluczowe

EN

Illinois; Peromyscus maniculatus; discriminant function; Peromyscus leucopus; morphometry; electrophoresis

• Wydawca: -
• Czasopismo: Acta Theriologica
• Rocznik: 1997
• Tom: 42
• Numer: 1
• Opis fizyczny: p.1-13

Twórcy

autor

Sternburg J. E.

• Southern Illinois University, Carbondale, IL 62901, USA

autor

Feldhamer G.A.

Bibliografia

• Allard M. W., Gunn S, J. and Greenbaum I. F. 1987. Mensural discrimination of chromosomally characterized Peromyscus oreas and P. maniculatus. Journal of Mammalogy 68: 402-406.
• Aquadro C. F. and Patton J. C. 1980. Salivary amylase variation in Peromyscus: use in species identification. Journal of Mammalogy 61: 703-707.
• Blair W. F. 1950. Ecological factors in speciation of Peromyscus, Evolution 4: 253-275.
• Choate J. R. 1973. Identification and recent distribution of white-footed mice (Peromyscus) in New England. Journal of Mammalogy 54: 41-49.
• Choate J. R., Dowler R, C. and Krause J. E. 1979. Mensural discrimination between Peromyscus leucopus and P. maniculatus (Rodentia) in Kansas. Southwestern Naturalist 24: 249-258.
• Christian J. J. 1967, Adrenal weight in prairie deer mice (Peromyscus maniculatus bairdii) and white-footed mice (Peromyscus leucopus noveboracensit¡). Journal of Mammalogy 48: 598-605
• Clark B. K., Kaufman D. W., Kaufman G. A. and Finck E. L. 1987. Use of tallgrass prairie by Peromyscus leucopus. Journal of Mammalogy 68: 158-160.
• Cockrum E. L. 1954. Non-geographic variation in cranial measurements of wild-taken Peromyscus leucopus noueboracensis. Journal of Mammalogy 35: 367-376.
• Engstrom M. D., Schmidly D. J. and Fox P. K. 1982. Nongeographic variation and discrimination of species within the Peromyscus leucopus species group (Mammalia: Cricetidae) in eastern Texas. Texas Journal of Science 34: 149-162.
• Evans M. G., Huang L. L. and Dawson W. D. 1977. Genetic variation of amylases in deer mice. Journal of Heredity 68: 313-316.
• Feldhamer G. A., Gates J. E, and Howard J. H, 1983. Field identification of Peromyscus maniculatus and P. leucopus in Maryland: reliability of morphological characteristics. Acta Theriologica 27: 417-423.
• Hansen L. P. and Warnock J. E. 1978. Response of two species of Peromyscus to vegetational succession on land strip-mined for coal. American Midland Naturalist 100: 416-423.
• Hoffmeister D. F. 1989, Mammals of Illinois, University of Illinois Press, Urbana: 1-348.
• Horner B. E. 1954. Arboreal adaptations of Peromyscus, with special reference to use of the tail. Contributions Laboratory Vertebrate Biology, University of Michigan 61: 1-84.
• Hsu T. C. and Arrighi F. E. 1966. Chromosomal evolution in the genus Peromyscus (Cricetidae, Rodentia). Cytogenetics 5: 355-359,
• Kantak G. E. 1983. Behavioral, seed preference and habitat selection experiments with two sympatric Peromyscus species. American Midland Naturalist 109: 246-252.
• Moody P. A, 1941. Identification of mice in genus Peromyscus by a red blood ceil agglutination test. Journal of Mammalogy 22: 40-47.
• Mumford R. E. and Whitaker J. O,, Jr 1982. Mammals of Indiana. Indiana University Press, Bloomington: 1-537.
• Norusis M, J. /SPSS Inc. 1990. SPSS advanced statistics student guide. SPSS Inc., Chicago: 1-506,
• Pathak S., Hsu T. C. and Arrighi F. E. 1973, Chromosomes of Peromyscus {Rodentia, Cricetidae) IV. The role of heterochromatin in karyotype evolution. Cytogenetics Cell Genetics 12: 315-326.
• Schwartz C. W. and Schwartz E. R. 1981. The wild mammals of Missouri. University Missouri Press, Columbia: 1-356.
• Stains H. J. 1959. Use of the calcaneum in studies of taxonomy and food habits. Journal of Mammalogy 40: 392-401.
• Sternburg J. E. 1992. Mensural discrimination between sympatric populations of Peromyscus leucopus and P. maniculatus in southern Illinois. M Sc thesis, Southern Illinois University, Carbondale: 1-107,
• Stromberg M. R. 1979. Field identification of Peromyscus leucopus and P. maniculatus with dis­criminant analysis. Wisconsin Academy of Science, Arts and Letters 67: 159-164.
• Tabachnick B. G. and Fidell L. S. 1989. Using multivariate statistics. 2nd ed. Harper Collins Publishers, Inc., New York: 1-746.
• Thompson T. G. and Conley W. 1983. Discrimination of coexisting species of Peromyscus in south­-centra) New Mexico. Southwestern Naturalist 28: 199-209.
• Whitaker J. O., Jr 1967. Habitat relationships of four species of mice in Vigo county, Indiana. Ecology 48: 867-872.
• Wolff J. O. 1985, Comparative population ecology of Peromyscus leucopus and Peromyscus mani­culatus. Canadian Journal of Zoology 63: 1548-1555.