Book contents
- Frontmatter
- Contents
- List of contributors
- Acknowledgments
- Epigraph
- Introduction: Gorilla biology: Multiple perspectives on variation within a genus
- Part 1 Gorilla taxonomy and comparative morphology
- 1 An introductory perspective: Gorillas – How important, how many, how long?
- 2 A history of gorilla taxonomy
- 3 Patterns of diversity in gorilla cranial morphology
- 4 The hierarchy of intraspecific craniometric variation in gorillas: A population-thinking approach with implications for fossil species recognition studies
- 5 Morphological differentiation of Gorilla subspecies
- 6 Ontogeny and function of the masticatory complex in Gorilla: Functional, evolutionary, and taxonomic implications
- 7 Intraspecific and ontogenetic variation in the forelimb morphology of Gorilla
- Part 2 Molecular genetics
- Part 3 Behavioral ecology
- Part 4 Gorilla conservation
- Afterword
- Index
- References
5 - Morphological differentiation of Gorilla subspecies
Published online by Cambridge University Press: 11 August 2009
Book contents
- Frontmatter
- Contents
- List of contributors
- Acknowledgments
- Epigraph
- Introduction: Gorilla biology: Multiple perspectives on variation within a genus
- Part 1 Gorilla taxonomy and comparative morphology
- 1 An introductory perspective: Gorillas – How important, how many, how long?
- 2 A history of gorilla taxonomy
- 3 Patterns of diversity in gorilla cranial morphology
- 4 The hierarchy of intraspecific craniometric variation in gorillas: A population-thinking approach with implications for fossil species recognition studies
- 5 Morphological differentiation of Gorilla subspecies
- 6 Ontogeny and function of the masticatory complex in Gorilla: Functional, evolutionary, and taxonomic implications
- 7 Intraspecific and ontogenetic variation in the forelimb morphology of Gorilla
- Part 2 Molecular genetics
- Part 3 Behavioral ecology
- Part 4 Gorilla conservation
- Afterword
- Index
- References
Summary
Introduction
Classic analyses of gorilla systematics by Coolidge (1929) and Groves (1970) form a vital foundation for virtually all contemporary studies of gorillas (see also important morphological studies by Albrecht et al., this volume; Groves, this volume; Haddow and Ross, 1951; Vogel, 1961; Sarmiento et al., 1996; Stumpf et al., 1998, this volume). Investigations of Gorilla subspecies diversity also inform many other fields such as paleoanthropology (cf. Albrecht et al., this volume; Lieberman et al., 1988). Despite a good understanding of variation within this species, theoretical advances and new analytical techniques point to a need to reassess our current understanding of gorilla variation. Measures of subspecific variation have important implications for studies of microevolution, ecomorphology, population dynamics, and evolutionary history. Concomitantly, increasing pressures on wild populations underscore the need for a clearer understanding of the structure of subspecific variability in a conservation context (Suter and Oates, 2000).
Therefore, the goal of this analysis is to investigate morphological diversity in gorillas through new measures of variation below the species level. More specifically, this analysis evaluates overall levels of variation within the Gorilla species through application of Wright's Fst to craniometric data (Wright, 1951; 1969; Relethford, 1994). This approach, typically used to measure genetic microdifferentiation, calibrates the degree to which subdivision within populations or species departs from a quantitative expectation of no substructure.
- Type
- Chapter
- Information
- Gorilla BiologyA Multidisciplinary Perspective, pp. 104 - 131Publisher: Cambridge University PressPrint publication year: 2002
References
Albrecht, G. H. and Miller, J. M. A. (1993). Geographic variation in primates: A review with implications for interpreting fossils. In Species, Species Concepts, and Primate Evolution, eds. W. H. Kimbel and L. B. Martin, pp. 123–162. New York: Plenum PressCrossRef
, , , and (1997). An apportionment of human DNA diversity. Proceedings of the National Academy of Sciences U.S.A., 94, 4516–4519CrossRefGoogle ScholarPubMed
Braga, J. (1995a). Définition de certains caractères discrets crâniens chez Pongo, Gorilla, et Pan: Perspectives taxonomiques et phylogénétiques. PhD thesis, University of Bordeaux, France
(1995 b). Variation squelettique et mesure de divergence chez les chimpanzés: Contribution des caractères discrets. Comptes Rendus de l'Académie des Sciences de Paris, series II, 320, 1025–1030Google Scholar
(1995 c). Study of two osseous discrete traits in the occipitocervical region of lowland gorillas. Folia Primatologica, 64, 37–43CrossRefGoogle ScholarPubMed
(1981). Variation in highly and lowly heritable morphological traits among social groups of rhesus macaques (Macaca mulatta) on Cayo Santiago. Evolution, 35, 75–83Google ScholarPubMed
(1929). A revision of the genus Gorilla. Memoirs of the Museum of Comparative Zoology, Harvard, 50, 291–381Google Scholar
Cope, D. A. (1993). Measures of dental variation as indicators of multiple taxa in samples of sympatric Cercopithecus species. In Species, Species Concepts, and Primate Evolution, eds. W. H. Kimbel and L. B. Martin, pp. 211–238. New York: Plenum PressCrossRef
and (1985). Canonical and principal components of shape. Biometrika, 72, 241–252CrossRefGoogle Scholar
, , and (1998). Interpretation of population structure when group structure is unknown. American Journal of Physical Anthropology, Supplement 26, 106Google Scholar
and (1998). Gorilla ecology and behavior. Evolutionary Anthropology, 6, 120–1313.0.CO;2-H>CrossRefGoogle Scholar
Fisher, R. A. (1930). The Genetical Theory of Natural Selection. Oxford, U.K.: Clarendon PressCrossRef
(1987). On the role of species in anagenesis. American Naturalist, 130, 465–473CrossRefGoogle Scholar
Futuyma, D. (1992). History and evolutionary process. In History and Evolution, eds. M. H. Nitecki and D. V. Nitecki, pp. 103–129. Stony Brook, NY: SUNY Press
, , , , , , , , , and (1999). Mitochondrial sequences show diverse evolutionary histories of African hominoids. Proceedings of the National Academy of Sciences U.S.A., 96, 5077–5082CrossRefGoogle Scholar
and (1996). Mitochondrial DNA diversity in gorillas. Molecular Phylogenetics and Evolution, 6, 39–48CrossRefGoogle ScholarPubMed
, , and (1997). The hierarchy of craniometric variation among gorillas. American Journal of Physical Anthropology, Supplement 24, 117Google Scholar
Groves, C. P. (1966). Variation in the skulls of gorillas with particular reference to ecology. PhD thesis, University of London
(1970). Population systematics of the gorilla. Journal of the Zoological Society of London, 161, 287–300CrossRefGoogle Scholar
, , and (1992). Unfinished business: Mahalanobis and a clockwork orang. Journal of Human Evolution, 22, 327–340CrossRefGoogle Scholar
and (1951). A critical review of Coolidge's measurements of gorilla skulls. Proceedings of the Zoological Society of London, 121, 43–45CrossRefGoogle Scholar
Harpending, H. and Jenkins, T. (1973). Genetic distance among southern African populations. In Methods and Theories of Anthropological Genetics, eds. M. H. Crawford and P. L. Workman, pp. 177–200. Albuquerque, NM: University of New Mexico Press
Hauser, G. and De Stefano, G. F. (1989). Epigenetic Variants of the Human Skull. Stuttgart, Germany: Schweitzerbartsche Verlagsbuchhandlung
and (2001). Mitochondrial DNA variation and biogeography of eastern gorillas. Molecular Ecology, 10, 2241–2247CrossRefGoogle ScholarPubMed
Jolly, C. J. (1993). Species, subspecies, and baboon systematics. In Species, Species Concepts, and Primate Evolution, eds. W. H. Kimbel and L. B. Martin, pp. 67–108. New York: Plenum PressCrossRef
, , and (1999). Extensive nuclear DNA sequence diversity among chimpanzees. Science, 286, 1159–1162CrossRefGoogle ScholarPubMed
(1991). Species, species concepts, and hominid evolution. Journal of Human Evolution, 20, 355–372CrossRefGoogle Scholar
Kimbel, W. H. and Martin, L. B. (1993). Species and speciation: Conceptual issues and their relevance for primate evolutionary biology. In Species, Species Concepts, and Primate Evolution, ed. W. H. Kimbel and L. B. Martin, pp. 539–554. New York: Plenum PressCrossRef
(1990 a). Analysis of prehistoric biological variation under a model of isolation by geographic and temporal distance. Human Biology, 62, 49–70Google Scholar
(1990 b). Temporal aspects of biological distance: Serial correlation and trend in a prehistoric skeletal lineage. American Journal of Physical Anthropology, 82, 45–52CrossRefGoogle Scholar
, , and (1993). Cranial deformation and nonmetric trait variation. American Journal of Physical Anthropology, 90, 35–48CrossRefGoogle ScholarPubMed
(1981). Models of speciation by sexual selection on polygenic characters. Proceedings of the National Academy of Sciences U.S.A., 78, 3721–3725CrossRefGoogle Scholar
and (1996). Intraspecific discrete trait polymorphism in African apes: Implications for variation in the fossil record. American Journal of Physical Anthropology, Supplement 22, 147Google Scholar
and (1995). Ontogeny and the evolution of adult body size dimorphism in apes. American Journal of Primatology, 36, 37–60CrossRefGoogle Scholar
, , and (1988). A probabilistic approach to the problem of sexual dimorphism in Homo habilis: A comparison of KNM-ER 1470 and KNM-ER 1813. Journal of Human Evolution, 17, 503–511CrossRefGoogle Scholar
(1999). Homoplasy and adaptation in the atelid postcranium. American Journal of Physical Anthropology, 108, 459–4823.0.CO;2-R>CrossRefGoogle ScholarPubMed
and (1999). The recognition and evaluation of homoplasy in primate and human evolution. Yearbook of Physical Anthropology, 42, 189–2323.0.CO;2-3>CrossRefGoogle Scholar
, , , and (1996). Randomization procedures and sexual dimorphism in Australopithecus afarensis. Journal of Human Evolution, 31, 537–548CrossRefGoogle Scholar
Manly, B. F. J. (1997). Randomization, Bootstrap and Monte Carlo Methods in Biology, 2nd edn. New York: Chapman & Hall
(1904). Bemerkungen über die Gattung Gorilla. Sitzungsberichte des Gesellschaft naturforschender Freunde, Berlin, 1904, 45–53Google Scholar
(1905). Merkurdige Gorilla-Schadel aus Kamerun. Sitzungsberichte des Gesellschaft naturforschender Freunde, Berlin, 1905, 277–283Google Scholar
(2000). Craniofacial variation in Homo habilis: An analysis of the evidence for multiple species. American Journal of Physical Anthropology, 112, 103–1283.0.CO;2-6>CrossRefGoogle ScholarPubMed
, , , , , and (1994). Kin selection, social structure, gene flow, and evolution of chimpanzees. Science, 265, 1193–1201CrossRefGoogle ScholarPubMed
Oates, J. (1996). African Primates. Gland, Switzerland: International Union for Conservation of Nature (IUCN)
and (1992). Intrasexual competition and canine dimorphism in anthropoid primates. American Journal of Physical Anthropology, 87, 461–478CrossRefGoogle ScholarPubMed
(1998). Variability in mammalian dentitions: Size-related bias in the coefficient of variation. Biological Journal of the Linnean Society, 64, 83–99CrossRefGoogle Scholar
(1994). Craniometric variation among modern human populations. American Journal of Physical Anthropology, 95, 53–62CrossRefGoogle ScholarPubMed
and (1990). Detection of differential gene flow from patterns of quantitative variation. Human Biology, 62, 5–25Google ScholarPubMed
and (1994). Craniometric variation, genetic theory, and modern human origins. American Journal of Physical Anthropology, 95, 249–270CrossRefGoogle ScholarPubMed
and (1999). Genetic evidence for larger African population size during recent human evolution. American Journal of Physical Anthropology, 108, 251–2603.0.CO;2-H>CrossRefGoogle ScholarPubMed
, , and (1997). Genetic drift and gene flow in post-famine Ireland. Human Biology, 69, 443–65Google ScholarPubMed
(1905). Notes on anthropoid apes. Proceedings of the Zoological Society of London, 2, 413–440Google Scholar
(1906). Further notes on anthropoid apes. Proceedings of the Zoological Society of London, 2, 465–468Google Scholar
, , , , , and (1994). Gene trees and hominoid phylogeny. Proceedings of the National Academy of Sciences U.S.A., 91, 8900–8904CrossRefGoogle ScholarPubMed
, , and (1998). Mitochondrial DNA variability in Grauer's gorillas of Kahuzi-Biega National Park. Journal of Heredity, 89, 129–135CrossRefGoogle ScholarPubMed
, , and (1996). Gorillas of the Bwindi-Impenetrable Forest and Virunga Volcanoes: Taxonomic implications of morphological and ecological differences. American Journal of Primatology, 40, 1–213.0.CO;2-1>CrossRefGoogle Scholar
(1934). Some distinguishing characters of the Mountain Gorilla. Journal of Mammology, 15, 51–61CrossRefGoogle Scholar
, , and (1998). Mitochondrial DNA diversity and biogeography of Eastern gorillas. American Journal of Physical Anthropology, Supplement 26, 199Google Scholar
, , and (2000). African ape nuclear phylogeography. American Journal of Physical Anthropology, Supplement 30, 276Google Scholar
(1981). Relative growth of the limbs and trunk in African apes. American Journal of Physical Anthropology, 56, 179–202CrossRefGoogle ScholarPubMed
(1983). Allometry and heterochrony in the evolution of African ape craniodental form. Folia Primatologica, 40, 32–68CrossRefGoogle Scholar
and (1988). Craniometric differentiation and systematics in the genus Pan. Journal of Human Evolution, 17, 671–686CrossRefGoogle Scholar
Shea, B. T., Leigh, S. R., and Groves, C. P. (1993). Multivariate craniometric variation in chimpanzees: Implications for species identification. In Species, Species Concepts, and Primate Evolution, eds. W. H. Kimbel and L. B. Martin, pp. 265–296. New York: Plenum PressCrossRef
, , , , and (1998). Morphological distinctiveness of Nigerian gorilla crania. American Journal of Physical Anthropology, Supplement 26, 213Google Scholar
and (2000). Sanctuary in Nigeria for possible fourth subspecies of gorilla. Oryx, 34, 71Google Scholar
Tattersall, I. (1993). Speciation and morphological differentiation in the genus Lemur. In Species, Species Concepts, and Primate Evolution, eds. W. H. Kimbel and L. B. Martin, pp. 163–176. New York: Plenum PressCrossRef
(1997 a). Relative growth, ontogeny, and sexual dimorphism in Gorilla (Gorilla gorilla gorilla and G. g. beringei): Evolutionary and ecological considerations. American Journal of Primatology, 43, 1–313.0.CO;2-0>CrossRefGoogle Scholar
(1997 b). Scapula form and biomechanics in gorillas. Journal of Human Evolution, 33, 529–553CrossRefGoogle ScholarPubMed
(2002). Masticatory form and function in the African apes. American Journal of Physical Anthropology, 117, 133–157CrossRefGoogle ScholarPubMed
(1994). Biodiversity at the molecular genetic level: Experiences from disparate macroorganisms. Proceedings of the Royal Society of London, Series B, 345, 59–64CrossRefGoogle ScholarPubMed
(1999). Human races: A genetic and evolutionary perspective. American Anthropologist, 100, 632–650CrossRefGoogle Scholar
& (1985). Foods consumed by sympatric populations of Gorilla gorilla gorilla and Pan troglodytes troglodytes in Gabon: Some preliminary data. International Journal of Primatology, 6, 27–43CrossRefGoogle Scholar
(1996). What we don't know about great ape variation. Trends in Ecology and Evolution, 11, 163–168CrossRefGoogle ScholarPubMed
(1998). Variation in tooth morphology of Gorilla gorilla. Journal of Human Evolution, 34, 55–70CrossRefGoogle ScholarPubMed
(1990). Age changes vs. natural selection in human skeletal traits, and statistics for their study. International Journal of Anthropology, 5, 281–282CrossRefGoogle Scholar
(1961). Zur systematischen Untergliederung der Gattung Gorilla anhand von Untersuchungen der Mandibel. Zeitschrift für Säugetieren, 26, 1–12Google Scholar
Watts, D. S. (1996). Comparative socioecology of gorillas. In Great Ape Societies, eds. W. C. McGrew, L. F. Marchant, and T. Nishida, pp. 16–28. Cambridge, U.K.: Cambridge University Press
and (1989). Anthropometric variation and the genetic structure of the Jirels of Nepal. Human Biology, 61, 1–12Google ScholarPubMed
(1951). The genetical structure of populations. Annals of Eugenics, 15, 323–354CrossRefGoogle ScholarPubMed
Wright, S. (1969). Evolution and the Genetics of Populations, vol. 2, The Theory of Gene Frequencies. Chicago, IL: University of Chicago Press