Oecologia

, Volume 87, Issue 3, pp 449–458 | Cite as

Ecomorphological relationships of a guild of ground-foraging birds in northern California, USA

  • William M. Block
  • Leonard A. Brennan
  • R. J. Gutiérrez
Original Papers

Summary

We studied habitat and morphological relationships of nine species of birds comprising a groundforaging guild within four distinct locations in northern California. Although the nine species overlapped extensively in habitat use, we observed subtle differences among species in specific characteristics of the habitats they used. About 40% of all cases were classified to the correct species based on a discriminant analysis (DA) of habitats across all study areas. Classification success from DAs on habitats within study areas ranged from 42 to 66%. Morphologies of species differed to varying degrees as 91% of all cases were classified to correct species by a DA of morphological variables. This morphological separation suggested that each species used different modes of obtaining resources. We found only weak relationships between habitat use and morphology. Morphology predicted from 13.6 to 19.0% of the variation in habitat use within each study area and only 13.9% of the habitat variation across all study areas. Habitat predicted from 6.2 to 14.6% of the morphological variation within each study area and 6.9% across all study areas. We suggest that complimentary relationships of habitat and morphology enabled species within this guild to use unique sets of resources.

Key words

Avian guild Ecomorphology Habitat use Morphology Resource partitionïng 

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References

  1. Baldwin SP, Oberholser HC, Worley LG (1931) Measurements of birds. Clev Mus Nat Hist 2:1–144Google Scholar
  2. Block WM (1985) Habitat and morphological relationships of a guild of ground-foraging birds in northern California. Thesis. Humboldt State University, Arcata, CAGoogle Scholar
  3. Block WM, Brennan LA, Gutiérrez RJ (1986) Use of guilds and guild-indicator species for assessing habitat suitability. In: Verner J, Morrison ML, Rarlph CJ (eds) Wildlife 2000: modeling habitat relationships of terrestrial vertebrates. University of Wisconsin Press, Madison, pp 109–113Google Scholar
  4. Brown JH (1984) On the relationship between abundance and distribution of species. Am Nat 124:255–279Google Scholar
  5. Brown JH, Bowers MA (1985) Community organization in hummingbirds: relationships between morphology and ecology. Auk 102:251–269Google Scholar
  6. Burnham KP, Anderson DR, Laake JL (1980) Estimation of density from line transect sampling of biological populations. Wildl Monogr 72:1–202Google Scholar
  7. Canfield RH (1941) Application of the line interception method in sampling range vegetation. J For 39:388–394Google Scholar
  8. Carrascal LM, Moreno E, Tellería JL (1990) Ecomorpological relationships in a group of insectivorous birds of temperate forests in winter. Holarctic Ecol 13:105–111Google Scholar
  9. Cody ML (ed) (1985) Habitat selection in birds. Acdemic Press, Orlando, FLGoogle Scholar
  10. Connell JH (1975) Some mechanisms producing structure in natural communities: a model and evidence from field experiments. In: Cody ML, Diamond JM (eds) Ecology and evolution of communities. Belnap Press, Cambridge MA, pp 460–490Google Scholar
  11. Cooley WW, Lohnes RR (1971) Multivariate data analysis. Wiley, New YorkGoogle Scholar
  12. Eckhardt RC (1979) The adaptive syndromes of two guilds of insectivorous birds in the Colorado Rocky Mountains. Ecol Monogr 49:129–149Google Scholar
  13. Efron B (1982) The jackknife, the bootstrap, and other resampling plans. Society for Industrial and Applied Mathematics. Philadelphia, PAGoogle Scholar
  14. Fretwell SD, Lucas HL (1970) On territorial behavior and other factors influencing habitat distribution in birds. I. Theoretical development. Acta Biotheor 19:16–36Google Scholar
  15. Grant PR (1968) Bill size, body size, and the ecological adaptations of bird species to competitive situations on islands. Syst Zool 17:319–333Google Scholar
  16. Green PE (1978) Analyzing multivariate data. Dryden Press, Hinsdale ILGoogle Scholar
  17. Grinnell J (1917) The niche-relationships of the California thrasher. Auk 34:427–433Google Scholar
  18. Gutiérrez RJ (1980) The comparative ecology of the mountain and California quails in the Carmel Valley, California. Living Bird 18:71–93Google Scholar
  19. Hespenheide HA (1973) Ecological inferences from morphological data. Annu Rev Ecol Syst 4:213–229Google Scholar
  20. Hildén O (1965) Habitat selection in birds: a review. Ann Zool Fenn 2:53–75Google Scholar
  21. Holmes RT, Robinson SK (1981) Tree species preference of foraging insectivorous birds in a hardwood forest. Oecologia 48:31–35Google Scholar
  22. James FC (1982) The ecological morphology of birds: a review. Ann Zool Fenn 19:265–275Google Scholar
  23. Karr JR, James FC (1975) Ecomorphological configuration and convergent evolution. In: Cody ML, Diamond JM (eds) Ecology and evolution of communities. Belnap Press, Cambridge MA, pp 258–291Google Scholar
  24. Kolasa J (1989) Ecological systems in hierarchical perspective: breaks in community structure and other consequences. Ecology 70:36–47Google Scholar
  25. Laake JL, Burnham KP, Anderson DR (1979) User's manual for the program TRANSECT. Utah State University Press, Logan, UTGoogle Scholar
  26. Lack D (1947) Darwin's finches. Cambridge, London, Great BritainGoogle Scholar
  27. MacArthur RH (1958) Population ecology of some warblers of northeastern coniferous forests. Ecology 39:599–619Google Scholar
  28. MacArthur RH, MacArthur JW (1961) On bird species diversity. Ecology 42:594–598Google Scholar
  29. Miles DB, Ricklefs RE (1984) The correlation between ecology and morphology in deciduous forest passerine birds. Ecology 65:1629–1640Google Scholar
  30. Miles DB, Ricklefs RE, Travis J (1987) Concordance of ecomorphological relationships in three assemblages of passerine birds. Am Nat 129:347–364Google Scholar
  31. Morris RF, Cheshire WF, Miller CA, Mott DG (1958) The numerical response of avian and mammalian predators during a gradation of spruce budworm. Ecology 39:346–355Google Scholar
  32. Noon BR (1981) The distribution of an avian guild along a temperate elevational gradient: the importance and expression of competition. Ecol Monogr 51:105–124Google Scholar
  33. Pianka ER (1978) Evolutionary ecology. Harper's. New YorkGoogle Scholar
  34. Pitelka FL (1951) Speciation and distribution in American jays of the genusAphelocoma. Univ Calif Berkeley Publ Zool 50:194–464Google Scholar
  35. Rice WR (1989) Analyzing tables of statistical tests. Evolution 43:223–225Google Scholar
  36. Ricklefs RE, Travis J (1980) A morphological approach to the study of avian community organization. Auk 97:321–338Google Scholar
  37. Root RB (1967) The niche exploitation pattern of the blue-gray gnatcatcher. Ecol Monogr 37:317–350Google Scholar
  38. Roth RR (1981) Vegetation as a determinant of avian ecology. In: Proc First Welder Wildlife Habitat Symposium, pp 162–174Google Scholar
  39. Schluter D, Smith JNM (1986) Natural selection on beak and body size in the song sparrow. Evolution 40:221–231Google Scholar
  40. Schoener TW (1965) The evolution of blll size differences among congeneric species of birds. Evolution 19:189–213Google Scholar
  41. Schoener TW (1974) Resource partitioning in ecological communities. Science 185:27–39Google Scholar
  42. Snedecor GW, Cochran WG (1980) Statistical methods. Seventh edition. Iowa State University, AmesGoogle Scholar
  43. Sokal RR, Rohlf FJ (1969) Biometry. W. H. Freeman, San Francisco, CAGoogle Scholar
  44. Svärdson G (1949) Competition and habitat selection in birds. Oikos 2:157–174Google Scholar
  45. Tilman D (1989) Discussion: population dynamics and species interactions. In: Roughgarden J, May RM, Levin SA, (eds) Perspectives in ecological theory. Princeton University Press, New Jersey, pp 89–101Google Scholar
  46. Tomoff CS (1974) Avian species diversity in desert scrub. Ecology 55:396–403Google Scholar
  47. Willson MF (1974) Avian community organization and habitat structure. Ecology 55:1017–1029Google Scholar
  48. Winkler H (1988) An examination of concepts and methods in ecomorphology. Proc Inter Ornith Congr 19:2246–2253Google Scholar

Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • William M. Block
    • 1
  • Leonard A. Brennan
    • 1
  • R. J. Gutiérrez
    • 1
  1. 1.Department of WildlifeHumboldt State UniversityArcataUSA

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